22 - 26 September 2013
ICC London ExCeL, UK

Tuesday 24 September

Download full programme for Tuesday




Tu.1.A • 09:00 - 10:30
Infrared Materials and Applications
Chair: Periklis Petropoulos, University of Southampton, UK


Tu.1.A.1 • 09:00 Tutorial
Glasses for Infrared Fibre Applications
H Ebendorff-Heidepriem1; 1Institute for Photonics and Advanced Sensing, The University of Adelaide, Australia
This paper reviews the optical and thermal properties of glasses transmitting light > 2 microns wavelength. The potential of the glasses for high power and high nonlinearity fibre applications and recent progress in fabrication of fibre from these glasses are also reviewed.


Tu.1.A.2 • 10:00
Diode-pumped Wideband Thulium-doped Fiber Amplifiers for Optical Communications in the 1800 - 2050 nm Window
Z Li1, A M Heidt1, S U Alam1, N Simakov1, Y Jung1, J M O Daniel1, D J Richardson1; 1Optoelectronics Research Centre, University of Southampton, UK
We present the first in-band diode-pumped TDFAs operating in the 2 µm wavelength region and test their application as high performance amplifiers in potential future telecommunication networks. We demonstrate amplification over a 240 nm wide window in the range 1810 - 2050 nm with up to 36 dB gain and noise figure as low as 4.5 dB.

Tu.1.A.3 • 10:15
Demonstration of a 2µm-OTDR
M Belal1, S U Alam1, J K Sahu1, D J Richardson1, T P Newson1; 1Optoelectronics Research Centre, University of Southampton, UK
We report the development of an OTDR operating at the emerging wavelength band of 2 µm. A 30dB dynamic range and spatial resolution of 10m is achieved.


Tu.1.B • 09:00 -- 10:30
Components for Access
Chair: Leo Spiekman, Aeon Corporation, USA


Tu.1.B.1 • 09:00 Invited
Advanced Optical Components for Access and Datacenters
D Piehler1; 1NeoPhotonics, USA
The development of advanced optical technologies for broadband access networks is compared to current development of advanced optical interconnects for datacenter networks. Based on identified parallels and synergies, predictions are made.


Tu.1.B.2 • 09:30
Multi-Channel 11.3-Gb/s Integrated Reflective Transmitter for WDM-PON
C P Lai1, R Vaernewyck2, A Naughton1, J Bauwelinck2, X Yin2, X-Z Qiu2, G Maxwell3, D W Smith3, A Borghesani3, R Cronin3, K Grobe4, N Parsons5, E Kehayas6, P D Townsend1; 1Tyndall National Institute, University College Cork, Ireland; 2INTEC/IMEC, Ghent University, Belgium; 3CIP Technologies, UK; 4ADVA Optical Networking SE, Germany; 5Polatis Ltd., UK; 6Constelex Technology Enablers Ltd., Greece
We present a multi-channel transmitter that employs an arrayed reflective electroabsorption modulator-based photonic integrated circuit and low-power driver array. Error-free 11.3-Gb/s per channel performance is achieved over 96 km of SSMF, with negligible crosstalk (<1-dB penalty) in multi-channel operation.

Tu.1.B.3 • 09:45
Three-mode PLC-type Multi/demultiplexer for Mode-division Multiplexing Transmission
N Hanzawa1, K Saitoh2, T Sakamoto1, K Tsujikawa1, T Uematsu2, M Koshiba2, F Yamamoto1; 1NTT Access Network Service Systems Laboratories, NTT Corporation, Japan; 2Graduate School of Information Science and Technology, Hokkaido University, Japan
We demonstrated a three-mode multi/demultiplexer (MUX/DEMUX) using parallel waveguides with a uniform height for mode division multiplexing transmission. The mode conversion of the LP01 mode to the LP11 and LP21 modes in the C-band was achieved using a fabricated MUX/DEMUX.

Tu.1.B.4 • 10:00
Employing an Integrated Mode Multiplexer on Silicon-on-Insulator for Few-mode Fiber Transmission
H Chen1, R van Uden1, C Okonkwo1, B Snyder2, O Raz1, P O'Brien2, H van den Boom1, H de Waardt1, T Koonen1; 1COBRA, Eindhoven University of Technology, Netherlands; 2Tyndall National Institute, University College Cork, Ireland
An integrated Silicon-on-Insulator mode multiplexer is experimentally verified by mode-multiplexed 2 x 10Gbaud QPSK transmission over 1km Few-mode Fiber guiding LP01 and LP11 modes. Robust transmission is demonstrated over C-band with high mode crosstalk suppression

Tu.1.B.5 • 10:15
40 nm Tuneable Source for Colourless ONUs based on Dual Hybridly Integrated Polymer Waveguide Grating Lasers
D De Felipe1, C Zawadzki1, Z Zhang1, W Brinker1, H N Klein1, M Moehrle1, N Keil1, N Grote1, M Schell1; 1Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institute, Germany
A dual-laser tuneable source based on a polymer integration platform is proposed as a low-cost light source for WDM-PON. A tunability of 40 nm along the C-band using a maximum electrical power of 82 mW was achieved. Direct modulation at 2.5 Gb/s through 20 km standard single-mode fibre and a 100 GHz-AWG has been successfully demonstrated.


Tu.1.C • 09:00 - 10:30
Optical Signal Processing
Chair: Laurent Bramerie, CNRS, France


Tu.1.C.1 • 09:00
Demonstration of 74 GHz Parametric Optical Sampled Analog-to-Digital Conversion
A O J Wiberg1, D J Esman1, L Liu1, Z Tong1, E Myslivets1, N Alic1, S Radic1; 1University of California San Diego, USA
We demonstrate a broadband analog parametric optical sampling gate-driven analog-to-digital conversion applicable to high speed signals. A record-fast analog signal of 74 GHz was characterized at 5.4 ENOB for the first time

Tu.1.C.2 • 09:15
Performance Analysis of Simultaneous Multilevel Amplitude and Phase Regeneration
T Roethlingshoefer1,2,3, G Onishchukov1,2,3, B Schmauss3,4, G Leuchs1,2,3; 1Max Planck Institute for the Science of Light, Germany; 2Institute of Optics, Information and Photonics, University of Erlangen-Nuremburg, Germany; 3Erlangen Graduate School in Advanced Optical Technologies, Germany; 4Institute of Microwaves and Photonics, University of Erlangen-Nuremberg, Germany  
A star-8QAM regeneration was investigated in numerical simulations for two schemes: a combined NALM with a PSA in the loop and a cascade of PSA and NALM. Significant improvements in error vector magnitude and bit error rate are achieved for both schemes in a transmission system limited by amplified spontaneous emission and nonlinear phase noise.

Tu.1.C.3 • 09:30
Mode-Selective Wavelength Conversion Based on Four-Wave Mixing in a Multimode Silicon Waveguide
Y Ding1, J Xu1, H Ou1, C Peucheret1; 1Department of Photonics Engineering, Technical University of Denmark, Denmark
We report all-optical mode-selective wavelength conversion based on four-wave mixing in a multimode Si waveguide. A two-mode division multiplexing circuit using tapered directional coupler based (de)multiplexers is used for the application. Experimental results show clear eye-diagrams and moderate power penalties for the conversion of both modes.

Tu.1.C.4 • 09:45
All-Optical Pre-Distortion and Fibre Loop Phase Conjugation of POLMUX Signals for Pre-Compensation of Fibre Nonlinearity
M D Pelusi1; 1CUDOS,The University of Sydney, Australia
All-optical pre-compensation of nonlinear distortion of polarization-multiplexed 80 Gb/s RZ-DPSK signals by pre-distortion and fibre loop phase-conjugation is evaluated experimentally. The impact of inter-polarization nonlinearity on the bit-error rate improvement for a 728 km dispersion-managed link employing a direct detection receiver is shown.

Tu.1.C.5 • 10:00
Tunable Optical Correlator using an Optical Frequency Comb for Generating Multiple Taps in a Tapped-Delay-Line Composed of a Single Nonlinear Element
M Ziyadi1, M R Chitgarha1, S Khaleghi1, A Mohajerin-Ariaei1, A Almaiman1, J D Touch2, M Tur3, C Langrock4, M M Fejer4, A E Willner1; 1Depart. of Electrical Engineering, University of Southern California (USC), USA; 2Information Sciences Institute, University of Southern California, USA; 3School of Electrical Engineering, Tel Aviv University, Israel; 4Edward L. Ginzton Laboratory, Stanford University, USA
We experimentally demonstrate a tunable optical correlator to search for multiple patterns among QPSK symbols in 20 Gbuad stream. We use an optical frequency comb to generate coherent signals and add them coherently using a single PPLN waveguide. Multiple patterns with different lengths are successfully searched on QPSK signals.

Tu.1.C.6 • 10:15
Reconfigurable 2-D WDM Optical Tapped-Delay-Line to Correlate 20-Gbaud QPSK Data
M R Chitgarha1, M Ziyadi1, S Khaleghi1, A Mohajerin-Ariaei1, A Almaiman1,
J Touch2, M Tur3, C Langrock4, M M Fejer4, A E Willner1; 1Ming Hsien, Dept. of Electrical Engineering, University of Southern California, USA; 2Information Sciences Institute, University of Southern California, USA, 3Tel Aviv University, Israel; 4Edward L. Ginzton Laboratory, Stanford University, USA
We demonstrate a 2-D optical tapped-delay-line that exploits nonlinearities and chromatic dispersion to perform 2-D correlation on 20-Gbaud QPSK data with correlator results with average EVM ~7.8%. We successfully recognize different 2×2 target patterns in an image with 961 pixels.


Tu.1.D • 09:00 - 10:30
Undersea Systems
Chair: Valey Kamalov, Google, USA


Tu.1.D.1 • 09:00 Invited
Spectral Shaping for High Spectral Efficiency in Long-Haul Optical Transmission Systems
M Mazurczyk1; 1TE SubCom, USA
We transmit 30 Tb/s capacity over 7,200 km and 21 Tb/s capacity over 10,300 km at high spectral efficiency using EDFA only amplification. Advanced digital signal processing including spectral shaping is used to achieve these results.

Tu.1.D.2 • 09:30
401 km Unrepeatered Transmission of Dual-Carrier 400 Gb/s PDM 16 QAM mixed with 100 Gb/s Channels
D Mongardien1, C Bastide1, B Lavigne1, S Etienne1, H Bissessur1; 1Alcatel-Lucent Submarine Networks, France
We present the unrepeatered transmission of a dual carrier 400 Gb/s PDM-16QAM channel over 401 km, mixed with 100 Gb/s PDM-QPSK channels. We show that pre-emphasis of the 400 Gb/s channel results in equalized channel margins at the link output.

Tu.1.D.3 • 09:45
Transmission of 256 Gb/s PM-16QAM and 128 Gb/s PM-QPSK Signals over Long-Haul and Submarine Systems with Span Lengths Greater than 100 km
J D Downie1, J Hurley1, D Pikula1; 1Corning Incorporated, USA
Transmission systems with span lengths averaging 112.3 km using ultra-low loss, large effective area fiber are used to demonstrate transmission of 20 PM-16QAM signals over more than 2,300 km and 20 PM-QPSK signals more than 14,400 km. For 40 channels, the 128 Gb/s PM-QPSK system has a reach > 7,400 km with 3 dB margin over the FEC threshold.

Tu.1.D.4 • 10:00 Invited
Ultra-Long-Haul MCF Transmission Systems
H Takahashi1, T Tsuritani1; 1KDDI R&D Laboratories, Japan
The multicore fiber (MCF) transmission technologies is a promising candidate for next generation optical fiber communication system. In this paper, we review the feasibility of the MCF transmission repeatered by multicore EDFA for ultra-long-haul transmission.



Tu.1.E • 09:00 - 10:30
DSP Algorithms
Chair: John Cartledge, Queen's University, Canada


Tu.1.E.1 • 09:00
Constellation Expansion and Iterative Demapping and Decoding for 100G Systems
P Leoni1, V A Sleiffer2, S Calabro3, B Lankl1; 1Institut Für Informationstechnik, Universität der Bundeswehr München, Germany; 2COBRA institute, Eindhoven University of Technology, Netherlands; 3Nokia Siemens Networks Optical GmbH, Germany
We investigate theoretically and experimentally the use of large constellations and low-rate FEC codes in 100G systems, improving both spectral efficiency and OSNR performance over conventional systems based on QPSK and high rate codes.


Tu.1.E.2 • 09:15
Simplified Transmitter-Side DSP Implementation for Optical Multilevel Signaling with Delay Detection
N Kikuchi1, T Yano1; 1Central Reseach Lab., Hitachi, Japan
We propose a new DSP configuration for optical higher-order multilevel signaling with chromatic dispersion pre-distortion both for optical delay-detection and for coherent detection with digital delay detection, which is effective to significantly reduce hardware size.


Tu.1.E.3 • 09:30 Invited
DSP for High Spectral Efficiency 400G Transmission
X Zhou1; 1AT&T Labs Research, USA
This paper presents an overview of several advanced digital signal processing (DSP)- enabled technologies recently demonstrated for high spectral efficiency (SE) 400Gb/s-class transmission, including the SE-adaptable time-domain hybrid QAM, transmitter-side digital spectral shaping, and training-assisted carrier phase recovery.


Tu.1.E.4 • 10:00
Experimental Investigation of Training Sequence for Adaptive Equalizer Initialization in DP-16QAM System
M Yan1, Z Tao1, T Tanimura2, S Oda2, Y Cao1, Y Zhao1, T Hoshida3, J C Rasmussen3; 1Fujitsu R&D Center, China; 2Fujitsu Laboratories, Japan; 3Fujitsu Ltd, Japan
A training sequence which realizes frame synchronization, frequency offset estimation and channel estimation simultaneously at the initial capturing stage is proposed and verified in a 32Gbaud DP-16QAM system. Experiment shows that it tolerates various linear distortions, such as CD, PMD and PDL, and avoids the singularity problem.

Tu.1.E.5 • 10:15
Fully-Blind Cycle Slip Compensation with Time-Interleaved Polarisation Coding in Two Dimensional Phase Domain
T Yoshida1, T Sugihara1, T Fujimori1, K Ishida1, T Mizuochi1; 1Information Technology R&D Center, Mitsubishi Electric Corporation, Japan
Alternating the polarisation coded symbol mapping rules between 2 symbols provides fully-blind cycle slip compensation. Simulation shows that the proposed method achieves performance only 0.2 dB below the theoretical limit for dual-polarised binary phase-shift keying.


Tu.1.F • 09:00 - 10:30
Integrated Devices
Chair: Philippe Chanclou, Orange Labs, France


Tu.1.F.1 • 09:00
Hybrid InP/Polymer Optical Line Terminals for 40-Channel 100-GHz spectrum-sliced WDM-PON
D De Felipe1, C Zawadzki1, Z Zhang1, A Maese1, M Wenzel1, H Li1, G Przyrembel1, A Sigmund1, M Moehrle1, N Keil1, N Grote1, M Schell1; 1Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institute, Germany
40-channel optical line terminals with 100-GHz channel spacing based on a polymer integration platform are introduced. Transmitter and receiver components are presented, consisting on polymer AWGs integrated with InP-based multi-wavelength lasers and planar photodetectors, respectively.

Tu.1.F.2 • 09:15 Contributed Submission
Optical True-Time-Delay Microwave Beam-Steering with 1 Gb/s Wireless Transmission for In-Building Networks
Z Cao1, Fan Li2,3, H P A Van de Boom1, E Tangdiongga1, A M J Koonen1; 1COBRA, Eindhoven University of Technology, Netherlands; 2ZTE USA, USA; 3Hunan University, China
An optical true time delay based microwave beam-steering (OTTD-MBS) scheme integrated with a radio-over-fibre system is demonstrated. Properties of 1Gb/s data wireless transmission with OTTD-MBS are studied.

Tu.1.F.3 • 09:30
16-Channel Tunable VCSEL Array with 50-GHz Channel Spacing for TWDM-PON ONUs
E-G Lee1, J C Lee1, S-G Mun1, E-S Jung1, J H Lee1, S S Lee1; 1ETRI, Republic of Korea
A tunable VCSEL array which has tunability of 50-GHz spaced 16 channels without mode hopping is successfully emonstrated. The tunable laser shows low power consumption for wavelength tuning of 0.01 W and error-free transmission with 20-km SMF and 64-way splitter.

Tu.1.F.4 • 09:45
Low-Cost Transmitter for Flexible-Format Generation up to 16-QAM for Spectral-Efficiency Conscious PONs
B Schrenk1, I Lazarou2, S Dris2, P Bakopoulos2, H Avramopoulos2, M Stierle1, H Leopold1; 1Dept. Safety & Security, AIT Austrian Institute of Technology, Austria; 2School of Electrical and Computer Engineering, National Technical University of Athens, Greece
A flexible-format EAM/SOA-transmitter for coherent PONs with spectral efficiencies of up to 4 bits/symbol, delivering up to 4 Gb/s per-user bandwidth over 34-49dB loss budget, is demonstrated. We show that its constellational multiplicity can be exploited for energy-aware throughput optimization.


Tu.1.F.5 • 10:00 Invited
Integrated Microwave Photonics for Access Systems
J Capmany1, P Muñoz1,2; 1ITEAM Research Institute, Universitat Politecnica de Valencia, Spain; 2VLC Photonics S.L, Universitat Politecnica de Valencia, Spain
We review the recent advances in integrated microwave photonics. Desired functionalities for access systems and converged fiber-wireless networks are identified. Some of the relevant progress in the principal technology platforms is described



Tu.3.A • 14:00 - 15:30
Advances in Optical Fibres
Chair: Tim Birks, University of Bath, UK


Tu.3.A.1 • 14:00 Invited
Precise Tailoring of Longitudinal Acoustic Property of Optical Fibers by a Hydrogen-loading Technique
L D1, F Kong1, T Hawkins1; 1COMSET/ECE, Clemson University, USA
We have demonstrated for the first time a post-processing technique using hydrogen loading and subsequent UV exposure to implement precise longitudinally-tailored acoustic property along a fiber for optimal SBS suppression. Local acoustic velocity can be modified by ~3%, leading to ~500MHz change in Brillouin frequency at ~1micron, equivalent to ~10dB SBS suppression.

Tu.3.A.2 • 14:30
Photosensitivity and Luminescence Induced by ArF-Irradiation of Hydrogen Loaded Bi-SiO2 Fiber
G Violakis1, H G Limberger1, A S Zlenko2, S L Semjonov2, V M Mashinsky2, E M Dianov2; 1Ecole Polytechnique Fédérale de Lausanne (EPFL), School of Engineering, Switzerland; 2Fiber Optics Research Center RAS, Russian Federation
Bi:SiO2 fiber drawn under oxidizing conditions shows ultra-low photosensitivity and no NIR luminescence under 1064 nm pumping. Hydrogen loading followed by ArF irradiation induced both. The increase of photosensitivity and the creation of luminescence centers seem to be linked to the reduction of Bi3+.

Tu.3.A.3 • 14:45
Data Transmission Over 1km HC-PBGF Arranged With Microstructured Fiber Spliced to Both Itself and SMF
J P Wooler1, F Parmigiani1, S R Sandoghchi1, N V Wheeler1, D R Gray1, F Poletti1, M N Petrovich1, D J Richardson1; 1Optoelectronics Research Centre, University of Southampton, UK
Validation of novel splicing strategy enabling integration of hollow-core photonic band gap fiber with both itself and conventional SMF is presented. Self-splices are robust and low loss (0.16dB). Penalty-free 40Gbit/s data transmission is demonstrated in 1km arrangement of spliced HC-PBGF.

Tu.3.A.4 • 15:00 
Understanding the Physical Origin of Surface Modes and Practical Rules for their Suppression
F Poletti1, E Numkam Fokoua1; 1Optoelectronics Research, University of Southampton, UK
We present a model explaining the physical origin of surface modes in hollow core photonic bandgap fibres. We discuss the existence of two families of surface modes, strut and rod localised, and propose practical rules to avoid them both. Based on this understanding, we propose a novel realistic design for large core, surface mode free fibres.

Tu.3.A.5 • 15:15
Fabrication and Properties of Lead-Germanate Glasses for High Nonlinearity Fibre Applications
H Tilanka Munasinghe1, A Winterstein-Beckmann2, C Schiele3, L Wondraczek2, D Manzani1, S Afshar V1, T M Monro1, H Ebendorff-Heidepriem1; 1Institute for Photonics and Advanced Sensing, University of Adelaide, Australia; 2Otto-Schott-Institute, University of Jena, Germany; 3Department of Materials Science, University of Erlangen, Germany
We report on the fabrication of novel germanate glasses and fibres. We have characterised the glasses in terms of their thermal properties, Raman spectra and refractive indices (both linear and nonlinear) and present them as viable alternatives to tellurite glasses for soft glass optical fiber applications.



Tu.3.B • 14:00 - 15:30
Chair: Christian Lerminiaux, utt, France


Tu.3.B.1 • 14:00 Invited
High Performance MEMS-based Micro-optic Assembly for Multi-lane Transceivers
B Pezeshki1; 1Kaiam Corp., USA
Advanced transceivers generally require multi-lane approaches, which necessitates the integration of multiple subcomponents. The use of mature, generally available, and low-cost single element components such as EMLs, silica PLCs, and direct-mod DFBs, integrated in a hybrid fashion and optically aligned with MEMS, provides a practical solution.


Tu.3.B.2 • 14:30
Free-Space Coherent Optical Communication Demonstration using a 3D Photonic Integrated Circuit Device for Orbital Angular Momentum Multiplexing/Demultiplexing
R P Scott1, B Guan1, C Qin1, N K Fontaine2, T Su1, C Ferrari2, M Cappuzzo2, F Klemens2, B Keller2, M Earnshaw2, S J Ben Yoo1; 1Electrical and Computer Engineering, University of California, Davis, USA; 2Bell Laboratories, Alcatel-Lucent, USA
We show error-free 10GBd DQPSK data transmission performance using orbital angular momentum (OAM) modes that are multiplexed and demultiplexed by a low-loss, hybrid-integrated device based on a silica planar lightwave circuit (PLC) coupled to a 3-D photonic integrated circuit.

Tu.3.B.3 • 14:45
40-Gb/s Cost-Effective FPC-Based Optical Engine for Optical Interconnect Using Novel High-Speed FPC Connector
T Yagisawa1, T Shiraishi1, M Sugawara1, Y Miki2, M Kobayashi2, K Tanaka1; 1Fujitsu Laboratories Ltd., Japan; 2Fujitsu Component Ltd., Japan
40-Gb/s error-free operation was successfully demonstrated for the first time as an optical engine (OE) using VCSEL. The OE with a cost-effective FPC-based structure realized 40-Gb/s operation by using our newly developed high-speed FPC connector between PCB and FPC-OE substrate.

Tu.3.B.4 • 15:00
Lambda-Scale Embedded Active-Region Photonic Crystal Lasers for Off-Chip Interconnect
S Matsuo1,3, K Takeda1,3, T Sato1,3, T Fujii1,3, A Shinya2,3, E Kuramochi2,3, M Notomi2,3, K Hasebe1,3, T Kakitsuka1,3; 1NTT Photonics Laboratories, Japan; 2NTT Basic Research Laboratories, Japan; 3Nanophotonics Center, NTT Corporation, Japan
We successfully increase the output power of an electrically driven photonic crystal laser. By using a six-quantum-well structure and decreasing the series resistance, the device, having 32-μA threshold current, exhibits 39.3-μW output power. We also demonstrate bit-error rate measurements with 10-Gbit/s signal without using optical amplifier.


Tu.3.C • 14:00 - 15:30
Transmitter Subsystems
Chair: Jeurg Leuthold, ETHZ, Switzerland


Tu.3.C.1 • 14:00 Invited
Bandwidth-Variable Transceivers Based on 4D Modulation Formats for Future Flexible Networks
J K Fischer1, S Alreesh2, R Elschner1, F Frey1, M Nöelle1, C Schubert1; 1Fraunhofer Heinrich Hertz Institute, Germany; 2 Technische Universität Berlin, Fachgebiet Nachrichtentechnik, Germany
We discuss technology options for bandwidth-variable transceivers which are key components for the realization of flexible software-defined optical networking. In particular, we focus on recent advances in four-dimensional modulation formats and in modulation format transparent data-aided digital signal processing.


Tu.3.C.2 • 14:30
Transmitter Mask Testing for 28 GBaud PM-QPSK
H Eliasson1, P Johannisson1, H Sunnerud2, M Westlund2, M Karlsson1,
P Andrekson1; 1Photonics Laboratory, Dept. of Microtechnology and Nanoscience, Chalmers University of Technology, Sweden; 2EXFO Sweden AB, Sweden
We suggest a method for pass/fail testing of PM-QPSK transmitters. The test is based on mask testing with time-resolved EVM and accepts transmitters where individual impairments cause less than 0.5 dB OSNR penalty. The design of the test is performed by computer simulations followed by experimental verification of some key results.

Tu.3.C.3 • 14:45
Eight-Dimensional Modulation for Coherent Optical Communications
T Koike-Akino1, D S Millar1, K Kojima1, K Parsons1; 1Mitsubishi Electric Research Laboratories, USA
We propose several 8-dimensional modulation formats for coherent fiber-optic communications. For spectral efficiencies of 1.75 and 2 b/s/Hz/pol, the proposed modulations offer up to 1 dB gain over DP-QPSK.

Tu.3.C.4 • 15:00
Spectrally-Efficient Single-Sideband Subcarrier-Multiplexed Quasi-Nyquist QPSK with Direct Detection
S M Erkilinc1, R Maher1, M Paskov1, S Kilmurray1, S Pachnicke2, H Griesser2, B C Thomsen1, P Bayvel1, R Killey1; 1Optical Networks Group, Department of Electronic and Electrical Engineering, University College London, UK; 2ADVA, Optical Networking SE, Germany
We propose and experimentally assess SSB SCM quasi-Nyquist QPSK for spectrally-efficient direct detection links. Nine channel 10.7 GHz-spaced WDM signal generation at 14 Gb/s per channel is demonstrated with a subcarrier frequency of 5.25 GHz.


Tu.3.E • 14:00 - 15:30
Network Planning and Energy Efficiency
Chair: Jarek Turkiewicz, Warsaw University of Technology, Poland


Tu.3.E.1 • 14:00
Realistic Energy-Saving Potential of Load-Adaptive Operation in Conventional and Platform-Consolidated Operator Networks
C Lange1, D Kosiankowski1, A Gladisch1; 1Deutsche Telekom, Telekom Innovation Laboratories, Germany
The energy-saving potential of load-adaptive operation principles for fixed operator networks is evaluated based on realistic network data for current and all-IP network equipment distributions. Overall energy savings with support of load-adaptive operation of below 10% for current and of around 50% for platform-consolidated networks are obtained.

Tu.3.E.2 • 14:15 
Adaptive Power Efficiency for Chromatic Dispersion Compensation
C Dorize1, Y Pointurier1, F Vacondio1, J-C Antona1, S Bigo1; 1Alcatel-Lucent Bell Labs, France
When digitally compensating for chromatic dispersion in coherent systems, we propose to adjust the number of operations according to each lightpath requirement so as to save energy through DSP power scaling. We achieve energy savings up to 77% (resp. 57%) into the compensation stage, when considering a core network scenario at 100 (resp. 200) Gb/s.

Tu.3.E.3 • 14:30 
Capacity Planning for Dynamic Inter-Data Center Networking via Erlang Modeling
A Nikolaidis1, S Asselin1, M Auster2, N Bragg3; 1Network Planning, CTO, Ciena Corporation, Canada; 2Market Development, Ciena Corporation, Canada; 3Network Architecture, CTO, Ciena Corporation, Canada
Data center virtualization and cloud service delivery models are driving the need for Network-as-a-Service offerings. This paper proposes a method for dimensioning networks for such services via Erlang modeling. Dynamic service adjustment and network orchestration are shown to achieve a major reduction in transport capacity requirements.

Tu.3.E.4 • 14:45
Planning of Converged Optical Wireless Network and DC Infrastructures in Support of Mobile Cloud Services
K N Georgakilas1, M P Anastasopoulos1, A Tzanakaki1, G Zervas2, D Simeonidou2; 1Athens Information Technology, Greece; 2University of Brtistol, UK
This paper focuses on converged optical/wireless network and DC infrastructures supporting mobile Cloud services. Planning these infrastructures using stochastic optimization approaches and allowing virtual machine migration to address end-user mobility, facilitates significant resource efficiency improvement

Tu.3.E.5 • 15:00
Novel Design of G.ODUSMP to Achieve Sub-50 ms Performance with Shared Mesh Protection in Carrier Networks
W Wauford1, S Roy1, O Turckcu1, S Ahuja1, S Hand1, A Sadasivarao1, B Lu1; 1Infinera, USA
This paper describes the first practical implementation of shared mesh protection with <50 ms performance using the emerging standards G.808.3 & G.ODUSMP. It also presents the performance benefits of this implementation demonstrating 20-26% network cost savings vs. 1+1 protection and a maximum protection switch time substantially less than 50 ms.

Tu.3.E.6 • 15:15
Techno-Economic Advantages of Cognitive Virtual Topology Design
N Fernandez1, R J Durán1, E Palkopoulou2, I de Miguel1, I Stiakogiannakis2, N Merayo1, I Tomkos2, R M Lorenzo1; 1Universidad de Valladolid, Spain; 2Athens Information Technology Center, Greece
We demonstrate that the introduction of cognitive techniques in virtual topology design leads to significant savings in terms of the total cost of ownership compared to conventional methods. Case study results indicate that capital and operational expenditures can be respectively reduced by up to 20% and 25% via a genetic algorithm-based method.


Tu.3.F • 14:00 - 15:30
Access Subsystems
Chair: Stefan Dahlfort, Ericsson, USA


Tu.3.F.1 • 14:00
Single-Fibre Operation of a Metro Access System with Network Based Wavelength Control
M Roppelt1, M Lawin1, M Eiselt1; 1ADVA Optical Networking, Germany
The operation of a tree-type WDM access system with low-cost tuneable terminals is demonstrated. Wavelength control is based on a central wavelength locker with laser tuning information being transmitted to the distributed terminal via a tone-based overhead channel. The wavelength evolution of turn-up and in-service operation is demonstrated.

Tu.3.F.2 • 14:15
Burst Frame Power Equalizer that Controlling Gains of Cascaded SOAs for Long-Reach WDM/TDM PON Systems
M Fujiwara1,2, R Koma1, N Yoshimoto1,2; 1NTT Access Network Service Systems Laboratories, NTT Corporation, Japan; 2Graduate School of Information Science and Technology, Hokkaido University, Japan
Proposed gain control scheme for cascaded SOAs avoids triggering pattern effect and improves output power equalization accuracy, which yields long-reach WDM/TDM-PON systems with wide operating ranges; input dynamic range is 19.0 dB.

Tu.3.F.3 • 14:30
Multi System Next-Generation PONs Impact on Video Overlay
A Shahpari1, J D Reis1, S Ziaie1, R Ferreira1, M Lima1, A N Pinto1, A Teixeira1,2; 1Dept. of Electronics, Telecommunications and Informatics, University of Aveiro, Instituto de Telecomunicações, Portugal; 2Nokia Siemens Networks Portugal S.A., IE WSM, Portugal
In this paper we validate a model to be used in multi system next generation PONs to estimate the impact of Raman crosstalk in video overlay. We have considered G.98X ITU-T series and Coherent multi-wavelength systems.

Tu.3.F.4 • 14:45
Reach Extension of RSOA-Self Seeded Transmitters for DWDM Metropolitan Networks with a Single EDFA
F Saliou1, S Dat Le1, Q Deniel1, P Chanclou1; 1Orange Labs, France
DWDM sources based on self seeded-RSOAs (SFP packaged) are experimented to bring easier usage in metropolitan networks. An optical budget of 26.5dB is realized with 50km of fiber and is further extended up to 60dB and 120km with an EDFA.

Tu.3.F.5 • 15:00
Experimental Demonstration of a 10 Gb/s 16-QAM SCM WDM PON with Bandwidth-limited RSOA and IM/DD Transceivers
J M Buset1, Z A El-Sahn1,2, D V Plant1; 1Photonic Systems Group, Dept. of Electrical and Computer Engineering, McGill University, Canada; 2Electrical Engineering Department, Alexandria University, Egypt
We demonstrate 10 Gb/s/λ full-duplex transmission over a 20 km single feeder WDM PON. DSP enables spectrally efficient 16-QAM modulation and RF subcarrier multiplexing (SCM) for both uplink and downlink channels using low cost optoelectronics. BER performance below the RS(255,223) FEC threshold is verified.

Tu.3.F.6 • 15:15
Simultaneous Optical Routing and Millimeter-Wave Generation Exploiting High-Order Resonant Switch for In-Building Networks
S  Zou1, P DasMahapatra1, K A Williams1, R Stabile1, E Tangdiongga1, A M J Koonen1; 1COBRA Research Institute, Eindhoven University of Technology, Netherlands
To effectively generate and convey the millimeter-wave radio signal for future in-building networks, the IF signal is up-converted and routed to the respective antenna unit simultaneously. Both the amplitude and phase transfer functions of the integrated switch enable the PM-to-IM conversion in the optical frequency multiplication scheme.


Exhibition Hall • 16:00 - 17:30


ECOC 2012 Participation