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1. Modified Frequency and Phase Estimation for M-QAM Optical Coherent Detection
Yinwen Cao (Beijing University of Posts and Telecommunications (BUPT), P.R. China); Song Yu (Beijing University of Posts and Telecommunications (BUPT), P.R. China); Ying Chen (Beijing University of Posts and Telecommunications (BUPT), P.R. China); Yuliang Gao (Beijing University of Posts and Telecommunications (BUPT), P.R. China); Wanyi Gu (Key Laboratory of Optical Communication and Lightwave Technologies, Ministry of Education, Beijing U, P.R. China); Ji Yuefeng (Beijing University of Posts and Telecommunications, P.R. China)
A frequency estimation without removing modulated data phase is proposed for M-QAM coherent system. In addition, a group of weighted coefficients are introduced for M-QAM phase estimation, resulting in an increment of laser linewidth tolerance.

2. Dynamic Power Control for Mixed Line Rate Transparent Wavelength Switched Optical Networks
Guanjun Gao (Beijng University of posts and telecommunications, P.R. China); Jie Zhang (Beijing University of Posts and Telecommunications, P.R. China); Wanyi Gu (Key Laboratory of Optical Communication and Lightwave Technologies, Ministry of
Education, Beijing U, P.R. China); Feng Zhiyong (Huawei Technologies Co., Ltd., Shenzhen, P. R. China, P.R. China); Yabin Ye (Huawei Technologies Duesseldorf GmbH, Germany)
We present an efficient dynamic launch power control algorithm for mixed line rate transparent WSON with hybrid OOK and DQPSK transmissions. Compared to the fixed power configuration, the proposed strategy shows better performance and scalability.

3. Simultaneous UWB Monocycle Pulse Generation and frequency Up-conversion with Multicasting Capability Using FWM effect in a Highly Nonlinear Photonic Crystal Fiber (HNL-PCF)
Fangzheng Zhang (Beijing University of Posts and Telecommunications, P.R. China); Jian Wu (Beijing University of Posts and Telecommunications, P.R. China); Fu Songnian (Nanyang Technological University, Singapore, Singapore); Kun Xu (Beijing University of Posts and Telecommunications, P.R. China); Yan Li (Beijing University of Posts and Telecommunications, P.R. China); Xiaobin Hong (Beijing University of Posts and Telecommunications, P.R. China); Ping Perry Shum (Nanyang Technological University, Singapore); Jintong Lin (), Beijing University of Posts and Telecommunications, P.R. China)
A scheme to simultaneously realize UWB monocycle pulse generation and frequency up-conversion using FWM effect in a 60-meter HNL-PCF is experimentally demonstrated. Two baseband and two frequency up-converted signals are obtained for UWB-over-fiber systems.

4. Transmission of 112Gb/s PM-RZ-DQPSK over 960 km with Adaptive Polarization Tracking Based on Power Difference
Jinnan Zhang (Beijing University of Posts and Telecommunications, P.R. China)
All-optic scheme for polarization multiplexed system de-multiplexing were implemented with high-speed and precise optical polarization tracking based on power difference. Stable polarization de-multiplexing with 800rad/s polarization scrambling for 112Gb/s direct detection PM-RZ-DQPSK transmission over 960km was demonstrated.

5. Reconfigurable and Simultaneous Implementation of All-optical Logic Gate Using Four-Wave Mixing (FWM) in HNLF for NRZ-PolSK signal
Lanlan Li (Being University of Posts and Telecommunications, P.R. China); Jian Wu (Beijing University of Posts and Telecommunications, P.R. China); Jifang Qiu (Beijing University of Posts and Telecommunications, P.R. China); Bingbing Wu (Beijing University of Posts and Telecommunications, P.R. China); Yan Li (Beijing University of Posts and Telecommunications, P.R. China); Kun Xu (Beijing University of Posts and Telecommunications, P.R. China); Xiaobin Hong (Beijing University of Posts and Telecommunications, P.R. China); Jintong Lin (), Beijing University of Posts and Telecommunications, P.R. China)
We demonstrate a reconfigurable all-optical logic gate for NRZ-PolSK signal based on FWM in a highly nonlinear fibe at 10Gb/s. Half-subtracter, XOR or XNOR, AND, NOR logic gates can be implemented simultaneously. Power penalties are less than 3dB.

6. Analysis of the Stability of Recirculating Frequency Shifter Used as a Multi-Tone Wideband Light Source for Tb/s Multi-Carrier Optical Transmission
Jian Ping Li (Beijing University of Posts and Telecommunications, P.R. China); Xuan Li (University of Science and Technology Beijing, P.R. China); Xiaoguang Zhang (Beijing University of Posts and Telecommunications, China, P.R. China); Feng Tian (Beijing University of Posts and Telecommunications, P.R. China); Lixia Xi (Beijing University of Posts and Telecommunications, Beijing 100876, China, P.R. China)
We theoretically study the stability of single-sideband-modulator based recirculating frequency shifter (RFS) used for Tb/s multi-carrier optical transmission, in the presence of modulation nonlinearity and optical amplifier noise. Optimum operation conditions are found for various scenarios.

7. Double Cooperating PCEs for IA-RWA Computation with QoT Compensation in Transparent Optical Networks
Ying Wang (Beijing University of Posts and Telecom, P.R. China); Jie Zhang (Beijing University of Posts and Telecommunications, P.R. China); Yongli Zhao (Beijng University of posts and telecommunications, P.R. China); Xuping Cao (Beijing University of Posts and Telecommunications, P.R. China); Hai Huang (Beijng University of posts and telecommunications, P.R. China); Wanyi Gu (Key
Laboratory of Optical Communication and Lightwave Technologies, Ministry of Education, Beijing U, P.R. China); Ji Yuefeng (Beijing University of Posts and Telecommunications, P.R. China)
An IA-RWA computation with QoT compensation based on double Cooperating PCEs is presented and extended AMSON testbed is verified. Two kinds of IARWA
computation with QoT compensation strategies including Cooperating PCEs based and RSVP based strategies are demonstrated and compared.

8. A Novel ECDM-OFDM-PON Architecture for Next-Generation Optical Access Network
Lijia Zhang (Beijing University of Posts and Telecommunications, P.R. China); Xiangjun Xin (Beijing University of Posts and Telecommunications, P.R. China); Bo Liu (Beijing University of Posts and Telecommunications, P.R. China); Chong Xiu Yu (Beijing university of posts and telecommunications, P.R. China); Xiaoli Yin (Beijing University of Posts and Telecommunications, P.R. China);
Ru Zhang (Beijing University of Posts and Telecommunications, P.R. China)
This paper proposes a novel ECDM-OFDM-PON architecture for next-generation passive optical network. An error free bidirectional transmission of two PON channels has been successfully demonstrated in the experiment.


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1. Availability Analysis of Shared Backup Path Protection Subject to SRLG Constraints in WDM Mesh Networks
Heng Zhang (Tsinghua University, P.R. China); Xiaoping Zheng (Tsinghua University, P.R. China); Yanhe Li (Tsinghua University,
P.R. China); Hanyi Zhang (Tsinghua University, P.R. China)
A general formula for the probability of SRLG-based sequential dual-failure is derived. Based on this, connection availability of SRLG-based shared path
protection is calculated in WDM mesh networks. Comparing with existing method, its accuracy is proved better through simulation.

2. Implementation of the Information-Diffusion-Based Routing on a Large-Scale ASON Test-Bed
Yue Chen (Tsinghua University, P.R. China); Nan Hua (Tsinghua University, P.R. China); Xiaoping Zheng (Tsinghua University, P.R. China); Hanyi Zhang (Tsinghua University, P.R. China); Bingkun Zhou (Tsinghua University, P.R. China)
Our proposed information-diffusion-based routing (IDBR) is implemented on Tsinghua University's large-scale ASON test-bed. The procedure of IDBR is validated together with RSVP-TE signaling in the experiment. Results show that the IDBR is fast converged and has low bandwidth consumption.

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1. Experimental Demonstration of a Single-carrier Frequency Division Multiple Address based PON (SCFDMA-PON) Architecture
Juhao Li (Peking University, P.R. China); Cheng Zhang (Peking University, P.R. China); Fan Zhang (Peking University, China, P.R. China); Yongqi He (Peking University, P.R. China); Zhangyuan Chen (Peking University, P.R. China)
We introduce a novel architecture for next generation passive optical network base on the Single-carrier Frequency Division Multiple Address (SC-FDMA) technique. Both downstream and upstream SC-FDMA transmissions are experimentally demonstrated.

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1. Photonic Generation of Tunable Ultra-Wideband Signals Using an SOA-integrated SGDBR Laser
Hui Lv (Huazhong University of Science and Technology, China, P.R. China); Yonglin Yu (Huazhong University of Science and Technology, China, P.R. China); Tan Shu (Huazhong University of Science and Technology, China, P.R. China); Dexiu Huang (Huazhong University of Science and Technology, P.R. China); Shan Jiang (Accelink Technologies Co., Ltd., China, P.R. China); Liam Barry (Dublin City University, Ireland)
We demonstrate tunable ultra-wideband (UWB) pulse gerenation by direct current modulation of a semiconductor optical amplifier (SOA) section of an SOAintegrated
sampled grating distributed Bragg reflector (SGDBR) laser.

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1. Multi-band Coherent Optical OFDM Receiver Enabled by Optical Frequency Combs
Xingwen Yi (University of Electronic Science and Technology of China, P.R. China); Nicolas K Fontaine (University of California,
Davis, USA); Ryan P Scott (University of California, Davis, USA); Ben Yoo (University of California, Davis, USA)
This paper presents a receiver using a silica planar lightwave circuit and an optical frequency comb for parallel coherent detection. Experimental results show
successful simultaneous detection of multiple bands from a 32-band coherent optical OFDM signal.


www.ecoc2010.org/

[ Last edited by opt-comm on 2010-7-21 at 18:12 ]
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