Semiconductor optical amplifier used as regenerator for degraded differential phase-shift keying sig

• 作 者: 席丽霞 李建平 杜树成 徐霞 张晓光
• 机 构: Key Laboratory of Information Photonics and Optical Communications,Ministry of Education,Beijing Uni
• 出 处: Chinese Physics B
• 发表日期: 2011年02期
• 关键词: amplifier keying degraded regeneration DPSK fibre EDFA analysed balanced chromat

Phase and amplitude regeneration are necessary for degraded differential phase-shift keying communication systems.This paper proposes a regenerator based on semiconductor optical amplifier for differential phase-shift keying signals.The key regeneration mechanism is theoretically analysed.The effectiveness of semiconductor optical amplifier based regenerator is demonstrated by comparing the bit error rate and eye diagrams before and after regeneration for 40-Gbit/s differential phase-shift keying 1080-km transmission systems.The results show that regeneration effects are very well.Bit error rate is less than 10 12 with the regenerator.

Phase and amplitude regeneration are necessary for degraded differential phase-shift keying communication systems. This paper proposes a regenerator based on semiconductor optical amplifier for differential phase-shift keying signals. The key regeneration mechanism is theoretically analyzed. The effectiveness of a semiconductor optical amplifier based regenerator is demonstrated by comparing the bit error rate and eye diagrams before and after regeneration for 40-Gbit / s differential phase-shift keying 1080-km transmission systems. Results show that regeneration effects are very well. Bit error rate is less than 10 12 with the regenerator.