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Proceedings Paper

Theoretical and experimental study on 10Gb/s all-optical packet clock recovery
Author(s): Wenrui Wang; Jinlong Yu; Aixu Zhang; Yue Cui; Bingchen Han; Hao Hu; Litai Zhang; Enze Yang
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Paper Abstract

A novel 10Gbit/s all-optical packet clock extractor, which comprises a Fabry-Perot (F-P) filter and a semiconductor optical amplifier (SOA), is proposed in this paper. Low Finesse Fabry-Perot (F-P) filter was used to directly extract the packet clock from the data packet stream, which ensures that the clock locks fast and vanishes quickly. The clock, amplitude modulated as a result of low-Q filter, then goes into SOA to reduce the low-frequency amplitude noise. The impact of F-P filter and SOA on the locking and unlocking time of the packet clock is theoretically analyzed. The result shows that the locking time is reduced while the unlocking time is increased, due to the self-gain modulation (SGM) effect. We demonstrate instantaneous 10.075GHz clock extraction experimentally with the establishing time of about 8 code-periods and vanishing time of about 22 code-periods.

Paper Details

Date Published: 19 November 2007
PDF: 8 pages
Proc. SPIE 6783, Optical Transmission, Switching, and Subsystems V, 67832E (19 November 2007); doi: 10.1117/12.745640
Show Author Affiliations
Wenrui Wang, Tianjin Univ. (China)
Jinlong Yu, Tianjin Univ. (China)
Aixu Zhang, Tianjin Univ. (China)
Yue Cui, Tianjin Univ. (China)
Bingchen Han, Tianjin Univ. (China)
Hao Hu, Tianjin Univ. (China)
Litai Zhang, Tianjin Univ. (China)
Enze Yang, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 6783:
Optical Transmission, Switching, and Subsystems V
Dominique Chiaroni; Wanyi Gu; Ken-ichi Kitayama; Chang-Soo Park, Editor(s)

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