상세정보
학술지
Remodulation Schemes with Reflective SOA for Colorless DWDM PON
- 발행일
- 200708
- 출처
- Journal of Optical Networking, v.6 no.8, pp.1041-1054
- ISSN
- 1536-5379
- 출판사
- Optical Society of America (OSA)
- 협약과제
- 07MT2800, 메트로-액세스 전광 통합망 기술개발, 김봉태
- 초록
- This article presents remodulation schemes with reflective semiconductor optical amplifiers (RSOAs), which have recently been developed for application to the wavelength-division-multiplexed passive optical network (WDM-PON). The remodulation schemes have a common feature that the optical signal modulated with downstream data is reused to carry the upstream data through the RSOA in the subscriber-side equipment by a series of processes such as being flattened out, reflected at the rear facet of the RSOA, and then remodulated with upstream data. The major advantage of remodulation schemes is the possibility of realizing the simplest WDM-PON optical link structure, which is directly reflected in cost-effectiveness of the network both in equipment and maintenance. Three schemes are presented; the simplest one is to use the RSOA gain saturation, the second uses the effect of frequency detuning on the extinction ratio of optical signal, and the third uses RSOA gain control by dynamically varying the current injection. Feasibilities of those schemes are discussed in the view of commercial application to WDM-PON. © 2007 Optical Society of America.
- KSP 제안 키워드
- Commercial application, Cost-effectiveness, Current injection, Frequency detuning, Gain Control, Link structure, Optical signal, Reflective Semiconductor Optical Amplifier, Semiconductor optical amplifiers(SOAs), Wavelength Division Multiplexing(WDM), Wavelength-division-multiplexing passive optical network(WDM-PON)