Performance improvement of optically amplified systems using out-of-band forward error correction

Juanjuan Yan; Yi Dong; Shizhong Xie; BingKun Zhou

doi:10.1117/12.444556

16 October 2001 Performance improvement of optically amplified systems using out-of-band forward error correction

Juanjuan Yan, Yi Dong, Shizhong Xie, BingKun Zhou

Proceedings Volume 4603, Fiber Optics and Optoelectronics for Network Applications; (2001) https://doi.org/10.1117/12.444556
Event: International Symposium on Optoelectonics and Microelectronics, 2001, Nanjing, China

Abstract

Forward error correction (FEC) is one of the newest technologies improving the performance of optical transmission systems. Out-of-band FEC providing high coding gain is the FEC type in common use, and RS (Reed-Solomon) coding capable of correcting both bursty errors and random errors is the most efficient coding used in the systems. In this paper, the error-correcting capability of RS codes with various levels of overhead is compared theoretically; the performance of optically amplified systems is analyzed by means of non-Gaussian approximation instead of traditional Gaussion approximation; based on the theory above, the system performance improved by FEC or Enhanced FEC (EFEC) is numerically simulated and discussed respectively with a view to the side-effects of out-of-band FEC due to increased channel bandwidth. Analyzing the performance of optical transmission system with FEC is not new, the contribution of the paper lies in its more precise approach*non-Gaussion approximation, furthermore the side-effects caused by out-of-band FEC are taken into account, by which the potential of FEC in increasing the capacity and improving the performance of optically amplified systems is illuminated more accurately.

Citation Download Citation

Juanjuan Yan, Yi Dong, Shizhong Xie, and BingKun Zhou "Performance improvement of optically amplified systems using out-of-band forward error correction", Proc. SPIE 4603, Fiber Optics and Optoelectronics for Network Applications, (16 October 2001); https://doi.org/10.1117/12.444556

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