First- and second-order PMD mitigation using 3R regeneration

Shilong Pan; Li Huo; Yanfu Yang; Caiyun Lou; Yizhi Gao

doi:10.1117/12.633155

8 December 2005 First- and second-order PMD mitigation using 3R regeneration

Shilong Pan, Li Huo, Yanfu Yang, Caiyun Lou, Yizhi Gao

Proceedings Volume 6021, Optical Transmission, Switching, and Subsystems III; 602108 (2005) https://doi.org/10.1117/12.633155
Event: Asia-Pacific Optical Communications, 2005, Shanghai, China

Abstract

We experimentally studied the PMD mitigation schemes using two different optical 3R regenerators. One is based on synchronous modulation and the other using an optical decision gate based on an electroabsorption modulator. The experimental results show that both schemes are useful to mitigate the signal quality degeneration induced by both first and second order PMD. System performance without and with 3R regeneration was separately studied by eye analysis and BER measurements. The signal quality was significantly improved by 3R regeneration under serious 1st-order PMD (up to 40% of the bit interval) combined with 2nd-order PMD (up to ~520ps²). We compared the performance between the two different 3R regenerators. The results show that 3R regenerator using an optical decision gate has a superior performance in synchronously mitigating 1st-order and 2nd-order PMD. Moreover, 3R based on EAM performs wavelength conversion simultaneously, which can be used to avoid wavelength blocking at nodes of the optical networks. Further studies indicate that 3R regenerators have the potential to combat with the effects of PMD combined with PDL and PHB. The limitation of the two schemes is also discussed.

Citation Download Citation

Shilong Pan, Li Huo, Yanfu Yang, Caiyun Lou, and Yizhi Gao "First- and second-order PMD mitigation using 3R regeneration", Proc. SPIE 6021, Optical Transmission, Switching, and Subsystems III, 602108 (8 December 2005); https://doi.org/10.1117/12.633155

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