.A reflective semiconductor optical amplifier based all-optical header separator[J].Optoelectronics Letters,2010,6(5):338-341 A reflective semiconductor optical amplifier based all-optical header separator 赵俊 Laboratory of Photonics and Optical Communications, Department of Electronics Engineering, Southeast University； R & D Center, Nanjing Nari-Relays Electric Co., LTD； Abstract:       An all-optical header extraction scheme based on the reflective semiconductor optical amplifier (RSOA) is presented, which can be used to process variable-length and bit-rate transparent packets. Through selecting the appropriate carrier-lifetime of the RSOA, the payload pulses obtain smaller gains than header pulses and are considered to be compressed. By using the reflective structure, the header pulses can acquire larger gains than the payload twice, and the contrast radio (CR) is improved. The simulation results show that the CRs can reach 22.8 dB and 18 dB for the packets with header pulses at the rates of 2.5 Gb/s and 10 Gb/s, respectively, and these values can be optimized through properly selecting the structure parameters, such as the small-signal gain and saturation energy. Hits: 4107 Download times: 246 View Full Text    Download reader