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학술지 25.78-Gb/s Operation of RSOA for Next-Generation Optical Access Networks
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저자
조근영, 최병석, Y. Takushima, 정윤철
발행일
201104
출처
IEEE Photonics Technology Letters, v.23 no.8, pp.495-497
ISSN
1041-1135
출판사
IEEE
DOI
https://dx.doi.org/10.1109/LPT.2011.2112759
협약과제
11VB1500, 액세스 네트워크용 광집적기반 OLT서브모듈 플랫폼 개발, 권오균
초록
We report the 25.78-Gb/s operation of the reflective semiconductor optical amplifier (RSOA) for the next-generation optical access network. For this purpose, we develop a butterfly-packaged RSOA and minimize the electrical parasitics. As a result, the modulation bandwidth of RSOA is improved from 2.2 to 3.2 GHz (which is the fundamental limit imposed by the carrier lifetime). In addition, the slope of the RSOA's frequency response curve is enhanced from -40 to -20 dB/decade. Using this butterfly-packaged RSOA, we have demonstrated the 25.78-Gb/s operation. The receiver sensitivity is measured to be -11 dBm with the help of the electronic equalization and forward-error-correction (FEC) techniques. To evaluate the possibility of implementing the 100-Gb/s passive optical network (PON) by using this RSOA and the coarse wavelength-division- multiplexing (CWDM) technique, we evaluate the BER performance at four different wavelengths in the C-band. The results show that the error-free transmission can be achieved in the wavelength range of ~20 nm with a penalty less than 2 dB. Thus, we can realize the 100-Gb/s PON cost-effectively by utilizing the directly modulated RSOAs operating at ~25 Gb/s. © 2011 IEEE.
키워드
Passive optical network (PON), semiconductor optical amplifiers (SOAs), wavelength-division multiplexing (WDM)
KSP 제안 키워드
20 nm, BER performance, C-band, Different wavelengths, Directly modulated, Electronic equalization, Error Correction, Error-free transmission, Frequency response(FreRes), Frequency response curve, Modulation bandwidth