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Proceedings Paper

A novel all-optical clock recovery scheme
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Paper Abstract

We experimentally demonstrate all-optical clock recovery (CR) from the nonreturn-to-zero (NRZ) data without any preprocess measure. Multi-quantum-well (MQW) Fabry-Pérot semiconductor optical amplifier (FP-SOA) plays the dual role of the data format converter and the clock recovery device. To achieve amplitude equalization of the recovered clock pulses, a self-nonlinear polarization switching (SNPS) including the FP-SOA itself, two polarization controllers (PCs) and a polarization beam splitter (PBS) is employed. Using the presented scheme, stable and low jitter 35.80 GHz optical clock pulses were directly extracted out from input NRZ data. This scheme has some distinct advantages such as being transparent to data format, free preprocess, free pre-amplification, convenient tuning, good tolerance to long "0s" data, and good tolerance to wavelength drifting of input data.

Paper Details

Date Published: 2 December 2009
PDF: 6 pages
Proc. SPIE 7631, Optoelectronic Materials and Devices IV, 76310F (2 December 2009); doi: 10.1117/12.852130
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)
Enming Xu, Huazhong Univ. of Science and Technology (China)
Yu Zhang, Huazhong Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 7631:
Optoelectronic Materials and Devices IV
Jian-Jun He; Guang-Hua Duan; Fumio Koyama; Ming C. Wu, Editor(s)

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