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Proceedings Paper

Impairments of cascaded AWGs in 40-Gb/s optical networks and its suppression
Author(s): Hongwei Chen; Minghua Chen; Shizhong Xie; Bingkun Zhou
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Paper Abstract

Computer simulation is used to evaluate the performance of cascaded multiplexers/ demultiplexers in optical networks. The intersymbol interference (ISI) of non-return-to-zero (NRZ), return-to-zero (RZ) and carrier-suppressed return-to-zero (CSRZ) formats caused by a series of AWG filters is simulated. We also consider the RZ formats with different duty circles transmitted in the optical networks. In order to suppress the power penalty caused by AWGs, a novel method is given out in this article. A synchronous clock is used to modulate the received optical signal so that enhance the clock part in the frequency field of the signal. This method can reduce the power penalty of AWGs and help optical signal to pass through more optical network elements in large area.

Paper Details

Date Published: 15 April 2004
PDF: 6 pages
Proc. SPIE 5282, Network Architectures, Management, and Applications, (15 April 2004); doi: 10.1117/12.520293
Show Author Affiliations
Hongwei Chen, Tsinghua Univ. (China)
Minghua Chen, Tsinghua Univ. (China)
Shizhong Xie, Tsinghua Univ. (China)
Bingkun Zhou, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 5282:
Network Architectures, Management, and Applications
S. J. Ben Yoo; Kwok-wai Cheung; Yun-Chur Chung; Guangcheng Li, Editor(s)

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