상세정보
학술지
Improvement of the input power dynamic range for wavelength converters based on cross-gain modulation employing a probe power control loop
- 발행일
- 200003
- 출처
- IEEE Photonics Technology Letters, v.12 no.3, pp.275-277
- ISSN
- 1041-1135
- 출판사
- IEEE
- 협약과제
- 99HT1200, 160Gb/s WDM 광전송시스템 개발, 김재근
- 초록
- A technique for improving the input power dynamic range of wavelength converters based on cross-gain modulation in a semiconductor optical amplifier is presented. By experimentally investigating the effect of pump and probe powers on the operating performance in terms of power penalty for a conventional wavelength converter, we show that the optimal performance depends on the ratio of pump and probe powers coupled into the semiconductor optical amplifier in a certain input power range. Based upon the experimental result, a wavelength converter with a wide dynamic range has been proposed, in which the probe power is automatically adjusted to have the power proportional to the pump power. We show that a dynamic range of >20 dB is achievable for a 2.5 Gbit/s signal at a 2-dB penalty.
- KSP 제안 키워드
- Experimental Result, Input power, Operating performance, Power control(PC), Power proportional, Power range, Pump power, Pump-probe, Semiconductor optical amplifiers(SOAs), cross-gain modulation(XGM), optimal performance