2004 Accepted Postdeadline Papers

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Session: Postdeadline I
Room: 515B
4:00 pm - 6:00 pm

Subcommittee I: Applications
Loudon Blair, CIENA Corp., USA, Presider

PDP1 4:00 pm

Field trial of 160Gbit/s OTDM add/drop node in a link of 275 km deployed fiber, Jaroslaw Piotr Turkiewicz¹, Eduward Tangdiongga¹, Giok-Djan Khoe¹, Huug de Waardt¹, Wolfgang Schairer², Harald Rohde², Gottfried Lehmann², Edmund Sikora³, Yu Zhou³, Andrew Lord³, Dave Payne³; ¹COBRA Res. Inst., Netherlands, ²Corporate Technology, Siemens AG, Germany, ³BTexact Technologies, UK. We demonstrate a 160 Gbit/s OTDM add/drop network comprising an OTDM add/drop node placed in a link of 275 km field deployed fiber. Excellent operation of clock recovery, drop/through/add functions, and transmission is reported.

Field test of GMPLS all-optical path rerouting, Shinya Tanaka¹, Shoichiro Asano², Takayuki Fujino², Hirokazu Ishimatsu¹, Takeshi Hashimoto¹, Atsuo Inomata¹, Toshikatsu Kanda¹, Mikio Yagi¹, Shiro Ryu¹, Susumu Yoneda¹, Toshihito Nishii³, Nobuyuki Yoshii³, Akira Sasaki³, Konosuke Fukada⁴, Teruko Fujii⁵, Takeshi Saito⁵, Eiichi Horiuchi⁵, Satoshi Tamura⁵, Motofumi Tanabe⁵; ¹Japan Telecom Co., Ltd., Japan, ²Natl. Inst. of Infomatics, Japan, ³Oki Electric Industry Co., Ltd., Japan, ⁴Cisco Systems K.K., Japan, ⁵Mitsubishi Electric Corp., Japan. Router-to-router all-optical wavelength path rerouting using generalized multi-protocol label switching protocols has been successfully carried out including photonic cross-connect and dense wavelength-division multiplexing equipment. The rerouting time was measured to be shorter than seven seconds.

PDP3 4:30 pm

Interworking DWDM equipment and PXC operation using GMPLS for a reliable optical network, Tomohiro Otani¹, Takehiro Tsuritani¹, Michiaki Hayashi¹, Hideaki Tanaka¹, Su-Hun Yun², Masakatsu Yanagisawa², Makoto Kawamichi², Hiroyuki Tanuma², Ayan Banerjee³, Evan McGinnis³; ¹KDDI R&D Labs., Inc., Japan, ²NEC Corp., Japan, ³Calient Networks, USA. GMPLS interworking operation between DWDM equipment and PXC was demonstrated for the first time to achieve SONET/SDH-grade reliability. PXC has successfully initiated restoration and managed resources based on DWDM equipment information via control plane.

Subcommittee H: Networks
George Ellinas, City College New York, USA, Presider

PDP4 4:45 pm

Hybrid WDM/TDM-PON for 128 subscribers using λ-selection-free transmitters, Dong J. Shin, Dae K. Jung, Hong S. Shin, Jin W. Kwon, Seongtaek Hwang, Yoon J. Oh, Chang S. Shim; Samsung Electronics, Republic of Korea. A WDM/TDM-PON with λ-selection-free transmitters is presented by cascading 1 x 16 AWGs and 1 x 8 splitters and employing ASE-injected FP-LDs. 1.25-Gb/s downstream and 622-Mb/s upstream transmissions over 60°C temperature range are achieved in all 128 channels.

Multi-rate payload switching using a swappable optical carrier suppressed label in a packet switched DWDM optical network, Gee Kung Chang, Sr., Jianjun Yu, Sr.; Georgia Tech, USA. Optical packets with multi-rate payload are demonstrated for the first time for optical label switching and transport in a multi-hop optical network over 200 km fiber with low power penalty. The key functions are demonstrated.

Demonstration of synchronous traffic transport over a time-multiplexed WDM ring, Jurgen Gripp, Marcus Duelk, John Simsarian, Martin Zirngibl; Bell Labs, Lucent Technologies, USA. We demonstrate a periodically-scheduled, time-multiplexed WDM ring that combines the bandwidth granularity and scalability of time-slotted WDM rings with the QoS characteristics of SONET. The ring transports SONET traffic over wavelength-switched asynchronous 10 Gb/s packets.

Electronic equalization and FEC enable bidirectional CWDM capacities of 9.6 Tb/s-km, Peter J. Winzer¹, Franz Fidler², Manyalibo J. Matthews¹, Lynn E. Nelson³, S. Chandrasekhar¹, Larry L. Buhl¹, Mark Winter⁴, Dan Castagnozzi⁴; ¹Bell Labs, USA, ²Inst. f. Nachrichtentechnik, TU Wien, Austria, ³OFS Labs, USA, ⁴AMCC, USA. Using electronic equalization to combat chromatic dispersion and forward error correction (FEC) to increase robustness to in-band crosstalk, we demonstrate CWDM capacities of 32x10 Gb/s (2x16, full-duplex) over >30 km of low-water-peak standard single-mode fiber.

All-optical label switching/swapping of 160 Gbps variable length packets and 10 Gbps labels using a WDM Raman enhanced-XPM fiber wavelength converter with unicast/multicast operation, Wei Wang, Lavanya Rau, Daniel J. Blumenthal; Univ. of California at Santa Barbara, USA. We report the first demonstration of all-optical-label-switching of variable-length 160Gbps packets and swapping of 10Gbps optical labels with real time switching and unicast/multicast operation using a WDM Raman enhanced all-optical fiber cross-phase modulation wavelength converter.

Session: Postdeadline II
Room: 502A
4:00 pm - 6:30 pm

Subcommittee D: Optical Switching and Wavelength Routing Devices
Joseph Ford, Univ. of California at San Diego, USA, Presider

Compact full C-band tunable filters for 50 GHz channel spacing based on high order micro-ring resonators, Sai T. Chu, Brent E. Little, Vien Van, John V. Hryniewicz, Philippe P. Absil, Fred G. Johnson, David Gill, Oliver King, Fred Seiferth, Murray Trakalo, John Shanton; Little Optics Inc., USA. Full C-band tunable filters for 50 GHz channel spacings based on 5^th order micro-ring resonator filters are described. These filters are tunable over 40 nm and can accommodate one hundred 50 GHz channels.

Data rate and channel spacing flexible wavelength blocking filter, Roland Ryf, Yikai Su, Lothar Möller, Sethumadhavan Chandrasekhar, David T. Neilson, C. Randy Giles; Lucent Technologies, Bell Labs, USA. We present a high-resolution blocking filter, which seamlessly supports datarates from 2.5Gbit/s to 160Gbit/s with a granularity of 13.2GHz. The filter consists of a linear array of 64 MEMS micromirrors and a high-dispersion echelle grating.

Planar lightwave circuit eight-channel CWDM multiplexer, Christopher Richard Doerr, Mark Cappuzzo, Louis Gomez, Evans Chen, Annjoe Wong-Foy, Edward Laskowski; Lucent Technologies, Bell Labs., USA. We demonstrate a novel eight-channel CWDM multiplexer. The fully-packaged channel losses range from 3.1dB to 5.5dB, the 1-dB bandwidth is 16.5nm, and the crosstalk is < -26dB. This silica-waveguide device could have very low cost.

Subcommittee E: Optoelectronic Devices
Yoshiaki Nakano, Univ. of Tokyo, Japan, Presider

An ultrawide-band (120 nm) semiconductor optical amplifier having an extremely-high penalty-free output power of 23 dBm realized with quantum-dot active layers, Tomoyuki Akiyama^1,2, Mitsuru Ekawa^1,2, Mitsuru Sugawara^4,5,3, Hisao Sudo^1,2, Kenichi Kawaguchi^2,1, Akito Kuramata^2,1, Hiroji Ebe^4,5,3, Ken Morito⁶, Hajime Imai^1,2, Yasuhiko Arakawa^4,5,3; ¹Fujitsu Ltd., Japan, ²OITDA, Japan, ³IIS, Univ. of Tokyo, Japan, ⁴NCRC, Univ. of Tokyo, Japan, ⁵RCAST, Univ. of Tokyo, Japan, ⁶Fujitsu Labs. Ltd., Japan. An SOA having a gain of >20 dB, NF of <7 dB, and saturation output power of >19 dBm over record-widest bandwidth of 120nm, and having record-highest penalty-free output power of 23dBm was realized by using quantum dots.

Low dispersion penalty at 10 Gb/s, over 75 km, using a quantum-well-intermixed electroabsorption-modulator/widely-tunable laser transmitter, James W. Raring, Erik J. Skogen, Leif A. Johansson, Matthew N. Sysak, Larry A. Coldren; Univ. of California at Santa Barbara, USA. 10Gb/s low power penalty (<0.5 dB) error-free transmission was achieved through 75km using a high-performance widely-tunable EAM/laser transmitter operating under negative chirp conditions. An integration-oriented quantum-well-intermixing process was employed for the realization of these devices.

10 Gbit/s, 100 km SMF transmission using an InP-based n-i-n Mach-Zehnder modulator with a driving voltage of 1.0 V_pp, Ken Tsuzuki¹, Hiroshi Yasaka¹, Tadao Ishibashi², Tsuyoshi Ito¹, Satoshi Oku¹, Ryuzo Iga¹, Yasuhiro Kondo¹, Yuichi Tohmori¹; ¹NTT Corp., Japan, ²NTT Electronics Corp., Japan. We report a 1.0 V_pp push-pull driven Mach-Zehnder modulator with an n-i-n heterostructure fabricated on an InP substrate. We achieved a 100 km transmission through SMF at 10 Gbit/s.

A gigahertz silicon-on-insulator Mach-Zehnder modulator, Dean A. Samara-Rubio¹, Ling Liao¹, Ansheng Liu¹, Richard Jones¹, Mario Paniccia¹, Doron Rubin², Oded Cohen²; ¹Intel Corp., USA, ²Intel Corp., Israel. We report a modulator in which a polysilicon-oxide-silicon capacitor forms a ridge waveguide to achieve unprecedented performance in silicon: 2.5GHz small-signal bandwidth and a driver-limited extinction ratio of 5dB at 1 gigabit per second.

High-speed optical FSK modulator for optical packet labeling, Tetsuya Kawanishi¹, Takahide Sakamoto¹, Satoshi Shinada¹, Masayuki Izutsu¹, Kaoru Higuma², Takahisa Fujita², Junichiro Ichikawa²; ¹Communications Res. Lab., Japan, ²New Technology Res. Labs., Sumitomo Osaka Cement, Japan. We demonstrate 10Gbps FSK transmission, and simultaneous modulation by FSK and IM using a newly developed high-speed FSK modulator. We also proposed a novel optical label swapping technique having no pumping light sources.

Subcommittee C: Resonant Devices and Signal Conditioning
Peter Krug, Consultant, Canada, Presider

Correlation and keying of Rayleigh scatter for loss and temperature sensing in parallel optical networks, Mark Froggatt, Brian Soller, Dawn Gifford, Matthew Wolfe; Luna Technologies, USA. Coherent optical frequency domain reflectometry is used to "key" portions of optical fiber using their complex Rayleigh backscatter signatures, and then locate specific fiber lengths within a network, and identify loss or temperature change.

High-sensitivity high-resolution sampling using linear optics and waveguide optical hybrid, Christophe Dorrer, Christopher R. Doerr, Inuk Kang, Roland Ryf, Peter J. Winzer; Bell Labs, Lucent Technologies, USA. A practical sampling setup based on linear interference of an optical signal with a sampling pulse in a waveguide optical hybrid demonstrates record-sensitivity sampling of eye diagrams up to 640 Gb/s with high fidelity.

Session: Postdeadline III
Room: 502B
4:00 pm - 6:15 pm

Subcommittee B: Amplifiers and Lasers: Fiber or Waveguide
Andrew Stentz, Photuris, Inc., USA, Presider

Optical gain at 1.5μm in Si-nanocrystal sensitized, Er-doped silica waveguide using top-pumping 470 nm LED, Jinku Lee¹, Jung Shin¹, Namkyoo Park²; ¹KAIST, Republic of Korea, ²Seoul National Univ., Republic of Korea. We demonstrate optical gain at 1.5μm in Si nanocrystal-sensitized, Er-doped silica waveguide using a commercial, low-cost 470nm LED in top-pumping configuration. Experimental evidence of full inversion with maximum possible gain of 3dB/cm is presented.

All-optical phase construction of ps-pulses from fiber lasers for coherent signaling at ultra-high data rates (≥ 160 Gb/s), Lothar Moeller¹, Yikai Su², Chongjin Xie¹, Roland Ryf¹, Xiang Liu¹, Xing Wei¹, Steven Cabot¹; ¹Bell Labs, Lucent Technologies, USA, ²Shanghai Jiao Tong Univ., China. A novel method to reconstruct the optical phase of fiber laser data pulses allows for generating phase-coded signals at record high-speed (up to 320Gb/s). This enables the analysis of NL-transmission of coherent modulation formats @160Gb/s.

Fibre DFB lasers with ultimate efficiency, Kuthan Yelen¹, Mikhalis N. Zervas^1,2, Louise M. B. Hickey²; ¹Optoelectronics Res. Ctr., UK, ²SPI Optics, UK. A novel method for designing DFB lasers with ultimate efficiency is presented. A 57% efficiency increase over standard optimised Er-Yb co-doped fibre designs is experimentally demonstrated.

Ultra-compact 52 mW 50-GHz spaced 16 channels narrow-line and single-polarization fiber laser, Guillaume Brochu, Radan Slavík, Sophie LaRochelle; Ctr. d'Optique, Photonique et Lasers, Canada. The multiwavelength laser is based on a 41 mm long distributed Fabry-Perot resonator photo-induced in Er-Yb co-doped fiber using superimposed chirped gratings. With a single pump laser, the mean power per line is 5.1 dBm.

Subcommittee A: Fibers and Propagation
William Reed, Photons Work LLC, USA, Presider

PDP23 5:00 pm
Ultra wide band 190 Gbit/s WDM transmission over a long length and low loss PCF, Kazuhide Nakajima, Jian Zhou, Katsusuke Tajima, Kenji Kurokawa, Chisato Fukai, Izumi Sankawa; NTT, Japan. 190 Gbit/s WDM transmission with a PCF has been demonstrated using 850 to 1550 nm bands for the first time. We experimentally show that more than 160 THz has been opened for future optical communication.

Low loss (1.7 dB/km) hollow core photonic bandgap fiber, Brian Mangan¹, Lance Farr¹, Allen Langford¹, P. John Roberts¹, David P. Williams¹, Francois Couny¹, Matthew Lawman¹, Matthew Mason¹, Sam Coupland¹, Randolf Flea¹, Hendrik Sabert¹, Tim A. Birks², Jonathan C. Knight², Philip St. J. Russell ²; ¹BlazePhotonics Ltd., UK, ²Univ. of Bath, UK. We report a silica hollow core photonic bandgap fiber with a minimum attenuation of 1.72dB/km at 1565nm wavelength and discuss the scaling of attenuation with wavelength and the minimum loss wavelength in these fibers.

First demonstration of air-silica Bragg fiber, G. Vienne¹, Y. Xu², C. Jakobsen¹, H. J. Deyerl³, T. P. Hansen^1,3, B. H. Larsen⁴, J. B. Jensen³, T. Sørensen³, M. Terrel², Y. Huang², R. Lee², N. A. Mortensen¹, J. Broeng¹, H. Simonsen¹, A. Bjarklev³, A. Yariv²; ¹Crystal Fibre A/S, Denmark, ²Caltech, USA, ³COM Ctr., Technical Univ. of Denmark, Denmark, ⁴NKT Res. & Innovation, Denmark. We present experimental and theoretical results on air-silica Bragg fibers. The TE₀₁ mode is observed for the first time to our knowledge in Bragg fibers. We could transmit light by bandgap guiding over 50 m.

Bismuth-based optical fiber with nonlinear coefficient of 1360 W^-1km^-1, Naoki Sugimoto¹, Tatsuo Nagashima¹, Tomoharu Hasegawa¹, S. Ohara¹, Kenji Taira², Kazuro Kikuchi²; ¹Asahi Glass Co., Japan, ²Univ. of Tokyo, Japan. We develop a conventional step-index type highly nonlinear bismuth oxide-based glass fiber. This fiber exhibits high nonlinearity (γ=1360 W^-1km^-1) because of the high nonlinearity of the glass material and the small effective core area.

UV processing of highly nonlinear fibers for enhanced supercontinuum generation, Paul Westbrook, Jeff Nicholson, Ken Feder, Andrew Yablon; OFS Labs., USA. We demonstrate that UV exposure of highly nonlinear germanosilicate fibers can significantly enhance the I-R supercontinuum generation in these fibers, extending it from 975nm to 850nm when pumped by 30 fs pulses at 1580nm.

 Session: Postdeadline IV
Room: 515A
4:00 pm - 6:45 pm

Subcommittee G: Subsystems, Network Elements, and Analog Systems
Benny Mikkelsen, Mintera Corp., USA, Presider

Compact 160 Gb/s add-drop multiplexing with a 40 Gb/s base-rate, Hsu-Feng Chou, John E. Bowers, Daniel J. Blumenthal; Univ. of California at Santa Barbara, USA. We report on the first 40 Gb/s-based OTDM add-drop multiplexing at 160 Gb/s using electrically driven electroabsorption modulators. Error-free operation for all channels is obtained with an average power penalty of 1 dB.

Four user, 2.5 Gb/s, spectrally coded O-CDMA system demonstration using low power nonlinear processing, Zhi Jiang¹, Dongsun Seo¹, Shang-Da Yang¹, Daniel E. Leaird¹, Andrew M. Weiner¹, Rostislav V. Roussev², Carsten Langrock², Martin M. Fejer²; ¹Purdue Univ., USA, ²Stanford Univ., USA. We demonstrate for the first time 2.5 Gb/s four user O-CDMA operation at ≤ 10^-11 BER utilizing programmable spectral phase encoding, an ultrasensitive (< 0.4 pJ/bit) PPLN-waveguide nonlinear waveform discriminator and 10G Ethernet receiver.

10 Gb/s duobinary receiver with a record sensitivity of 88 photons per bit, Lothar Moeller, Chongjin Xie, Roland Ryf, Xiang Liu, Xing Wei; Bell Labs, Lucent Technologies, USA. We demonstrate a novel receiver concept for duobinary signals that allows for data recovery with a sensitivity of -39.5dBm (88 Photons/bit, BER=1.10^-9). Oversampling together with maximum likelihood sampling phase estimation results in superior back-to-back performance.

Adaptive PMD compensator in 160Gb/s DPSK transmission over installed fiber, Sven Kieckbusch¹, Sebastian Ferber², Harald Rosenfeldt³, Reinhold Ludwig², Christof Boerner², Armin Ehrhardt⁴, Ernst Brinkmeyer¹, Hans-Georg Weber²; ¹Technische Univ. Hamburg-Harburg, Germany, ²Fraunhofer Inst. for Telecommunications, Heinrich-Hertz-Institut, Germany, ³Adaptif Photonics GmbH, Germany, ⁴T-Systems, Germany. We report on a magneto- and electro-optically tuned dynamic PMD compensator that enabled error-free single-channel 160Gb/s RZ-DPSK transmission over a 75km SMF link (PMD>0.3T_Bit). Polarization scrambling and DOP measurements were utilized to automatically adapt the compensator.

Compensation of intra-channel nonlinearities in 40 Gb/s pseudo-linear systems using optical phase conjugation, Aref Chowdhury, Gregory Raybon, Rene Jean Essiambre, Jeffrey Sinsky, Andrew Adamiecki, Juerg Leuthold, Christopher R. Doerr, Sethumadhavan Chandrasekhar; Bell Labs., USA. We compensate intra-channel nonlinearities in an RZ-DPSK-40Gb/s 32 x 100km system using a LiNbO₃ conjugator and achieve 2 decades of improvement in BER. Transmission limited to 5,200km at a BER=5 x 10^-4 is extended to 6,400km with phase conjugation.

**Regrettably omitted from the printed digest distributed at the 2004 OFC meeting.

Direct measurement of constellation diagrams of optical sources, Christophe Dorrer, Juerg Leuthold, Christopher R. Doerr; Bell Labs, Lucent Technologies, USA. We present the first temporal diagnostic that measures statistical information on both the intensity and phase of data-encoded channels. Experimental characterization of differential-phase shift keyed signals at 10 Gb/s and 40 Gb/s is presented.

Subcommittee F: Digital Transmission Systems
Alan Gnauck, Lucent Technologies, Bell Labs., USA, Presider

RZ-DPSK field trial over 13,100 km of installed non slope-matched submarine fibers, Jin-Xing Cai, Dmitri Foursa, Li Liu, Carl Davidson, Yi Cai, Will Patterson, Alan Lucero, Bamdad Bakhshi, Georg Mohs, Pat Corbett, Vishal Gupta, William Anderson, Michael Vaa, George Domagala, Matt Mazurczyk, Haifeng Li, Morten Nissov, Alexei Pilipetskii, Neal Bergano; Tyco Telecommunications, USA. We successfully conducted a 96x10Gb/s RZ-DPSK field trial over an installed 13,100km optical undersea path with more than 3dB FEC margin, including channels with >13,000ps/nm dispersion. The performance was further improved 1-2dB by adding pre-chirp.

6 x 42.7 Gb/s transmission over ten 200 km EDFA-amplified SSMF spans using polarization-alternating RZ-DPSK, A. H. Gnauck¹, J. Leuthold¹, C. Xie¹, I. Kang¹, S. Chandrasekhar¹, P. Bernasconi¹, C. Doerr¹, L. Buhl¹, J. D. Bull², N. A. F. Jaeger², H. Kato², A. Guest²; ¹Lucent Technologies, Bell Labs, USA, ²JGKB Photonics, Canada. We demonstrate the use of polarization alternation to dramatically improve performance in 42.7-Gb/s WDM transmission. Six channels are transmitted through ten 200-km (39-dB loss) standard-single-mode fiber spans with amplification provided solely by erbium-doped fiber amplifiers.

WDM transmission at 6 Tbit/s capacity over transatlantic distance, using 42.7Gb/s Differential Phase-Shift Keying without pulse carver, Gabriel Charlet¹, Erwan Corbel¹, Jose Lazaro², Axel Klekamp², Roman Dischler², Patrice Tran¹, Wilfried Idler¹, Haik Mardoyan¹, Agnieszka Konczykowska³, Filipe Jorge³, Sebastien Bigo¹; ¹Alcatel R&I, France, ²Alcatel R&I, Germany, ³Opto+, France. We report the transmission of a record 6Tbit/s capacity over 6,120km, involving channels modulated at 42.7Gb/s bit-rate with Differential Phase-Shift Keying (DPSK). The performance is found similar to DPSK with subsequent pulse carving, namely RZ-DPSK.

42 x 42.7 Gb/s RZ-DPSK transmission over a 4820 km long NZDSF deployed line using C-band-only EDFAs, Loic Becouarn¹, Ghislaine Vareille¹, Sebastien Dupont¹, Philippe Plantady¹, Jean-François Marcerou¹, Axel Klekamp², Roman Dischler², Wilfried Idler², Gabriel Charlet¹; ¹Alcatel, France, ²Alcatel, Germany. The transmission of 42 RZ-DPSK channels at 42.7Gb/s is demonstrated over 4820 km of NZDSF deployed line with more than 3dB margin. A performance comparison with the same capacity using 166 x 10Gb/s DPSK is demonstrated.

1.14 b/s/Hz spectrally-efficient 50 x 85.4 Gb/s transmission over 300 km using copolarized CS-RZ DQPSK signals, Noboru Yoshikane, Itsuro Morita; KDDI R&D Labs. Inc., Japan. 1.14 b/s/Hz spectrally-efficient 50 x 85.4 Gb/s transmission over 300 km of NZ-DSF has been successfully demonstrated with copolarized CS-RZ DQPSK signals. 42.7 Gsymbol/s-based 4Tb/s DQPSK transmission has been achieved without polarization multiplexing.