High Reflection Tolerance of 1.25-Gb/s RSOA-based WDM PON Employing Spectrum-Sliced ASE Source
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.
Reflective semiconductor optical amplifier wavelength division multiplexing optical reflection reflection tolerance amplified spontaneous emission.
H.C.Jeon K.Y.Cho Y.Takushima Y.C.Chung
Korea Advanced Institute of Science and Technology373-1 Guseong-dong,Yuseong-gu,Daejeon 305-701,Korea
国际会议
2008亚太光通信会议(Asia-Pacific Optical Communications 2008)
杭州
英文
2008-10-26（万方平台首次上网日期，不代表论文的发表时间）