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Proceedings Paper

All-optical 20 Gbit/s NRZ-DPSK demodulation and clock recovery
Author(s): Fei Wang; Xinliang Zhang; Jianji Dong; Yu Yu; Xi Huang
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Paper Abstract

All-optical clock recovery (CR) from 20-Gbit/s nonreturn-to-zero differential phase-shift-keying (NRZ-DPSK) signal is demonstrated experimentally by using Polarization-Maintaining Fiber Loop Mirror Filter and semiconductor optical amplifier (SOA) fiber ring laser. Only by adjusting polarization controller (PC), NRZ-DPSK signal were conveniently and fast converted to pseudo return-to-zero (PRZ) signal via PMF-LMF. Then the PRZ signal is injected into the SOA fiber laser for CR. The recovered clock signals with the extinction ratio of 10 dB and the root-mean-square timing jitter of 850 fs is achieved under 231-1 pseudorandom binary sequence NRZ-DPSK signals measurement.

Paper Details

Date Published: 18 November 2008
PDF: 6 pages
Proc. SPIE 7135, Optoelectronic Materials and Devices III, 71353C (18 November 2008); doi: 10.1117/12.803066
Show Author Affiliations
Fei Wang, Huazhong Univ. of Science and Technology (China)
Chongqing Institute of Technology (China)
Xinliang Zhang, Huazhong Univ. of Science and Technology (China)
Jianji Dong, Huazhong Univ. of Science and Technology (China)
Yu Yu, Huazhong Univ. of Science and Technology (China)
Xi Huang, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 7135:
Optoelectronic Materials and Devices III
Yi Luo; Jens Buus; Fumio Koyama; Yu-Hwa Lo, Editor(s)

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