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Proceedings Paper

10GHz all-optical packet clock recovery with ultrafast locking and unlocking time via XPM effect of the SOA
Author(s): Wenrui Wang; Jinlong Yu; Aixu Zhang; Litai Zhang; Bingchen Han; Hao Hu; Yang Jiang; Enze Yang
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Paper Abstract

Short locking and unlocking time is essepecially important in the packet clock recovery, as it determines the network resource utilization. This paper presents a novel 10-GHz all-optical packet clock extractor with ultrafast locking and unlocking time via self-phase modulation (SPM) effect of the semiconductor optical amplifier (SOA). Low finesse Fabry-Perot (F-P) filter and a saturated SOA, in cascade, are used to directly extract the packet clock from the data stream. An optical bandpass filter(OBPF) is used to filter out the red-shifted parts of the packet clock in order to reduce the locking and unlocking time. We analytically investigate the impact of the locking and unlocking time thanks to the self-gain modulation (SGM) effect and self-phase modulation(SPM) effect induced by the SOA, and demonstrate 10GHz clock extraction with the establishing time of 200ps and vanishing time of 600ps experimentally.

Paper Details

Date Published: 10 November 2008
PDF: 8 pages
Proc. SPIE 7136, Optical Transmission, Switching, and Subsystems VI, 713602 (10 November 2008); doi: 10.1117/12.804081
Show Author Affiliations
Wenrui Wang, Tianjin Univ. (China)
Jinlong Yu, Tianjin Univ. (China)
Aixu Zhang, Tianjin Univ. (China)
Litai Zhang, Tianjin Univ. (China)
Bingchen Han, Tianjin Univ. (China)
Hao Hu, Tianjin Univ. (China)
Yang Jiang, Tianjin Univ. (China)
Enze Yang, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 7136:
Optical Transmission, Switching, and Subsystems VI
Ken-ichi Kitayama; Pierpaolo C. Ghiggino; Kim Roberts; Yikai Su, Editor(s)

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