11 November 2008 High reflection tolerance of 1.25-Gb/s RSOA-based WDM PON employing spectrum-sliced ASE source
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Proceedings Volume 7136, Optical Transmission, Switching, and Subsystems VI; 71360N (2008) https://doi.org/10.1117/12.803892
Event: Asia-Pacific Optical Communications, 2008, Hangzhou, China
Abstract
We investigate the impact of the reflection in an RSOA-based WDM PON utilizing the spectrum-sliced ASE source as the seed light. Since the spectrum-sliced ASE source has sufficiently large bandwidth to suppress the optical beat interference (OBI) noise, we can achieve the high reflection tolerance in comparison with that in a conventional WDM PON using the remodulation scheme. In the experiment, we systematically investigate the dependence of the reflection tolerance on the operating conditions such as the optical power and bandwidth of the spectrum-sliced ASE source injected into the RSOA. In the case when the injection power into the RSOA is low, the performance of the upstream signal becomes vulnerable due to the reflection-induced incoherent crosstalk and parasitic laser oscillation. However, we can improve the reflection tolerance significantly by increasing the optical power and the bandwidth of the spectrumsliced ASE source. By optimizing these operating conditions, we can achieve an excellent refection tolerance greater than -15 dB.
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H. C. Jeon, H. C. Jeon, K. Y. Cho, K. Y. Cho, Y. Takushima, Y. Takushima, Y. C. Chung, Y. C. Chung, } "High reflection tolerance of 1.25-Gb/s RSOA-based WDM PON employing spectrum-sliced ASE source", Proc. SPIE 7136, Optical Transmission, Switching, and Subsystems VI, 71360N (11 November 2008); doi: 10.1117/12.803892; https://doi.org/10.1117/12.803892
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