论文信息 - 40-Gbit/s WDM Transmission Incorporating with a Reflective Type Amplifier Using a Raman Active DCF

40-Gbit/s WDM Transmission Incorporating with a Reflective Type Amplifier Using a Raman Active DCF

Raman amplification has many attractive features. In case of WDM transmission through standard SMFs a dispersion compensation fiber (DCF) is effectively united with a Raman amplifier by launching pump light into the DCF. We propose a novel Raman amplifier with a reflective structure that has advantages such as high efficiency of pumping, easy combination with a tunable dispersion compensator, and easy protection against pump power leakage into the transmission line. Optical power budget of 6dB is obtained comparing to the case without amplification in an experiment where optical signals of 40-Gbit/s 8-channls WDM with a 0.8-nm spacing are transmitted over 60km.

Ikuo Yamashita | Shigeyuki Seikai | Kyoichi Oro

[1] K. Kikuchi,et al. Nonlinearly strain-chirped fiber Bragg grating with an adjustable dispersion slope , 2002, IEEE Photonics Technology Letters.

[2] Masaki Funabashi,et al. Novel concepts in 14XX-nm pump lasers for Raman amplifiers , 2002, SPIE ITCom.

[3] Youichi Akasaka,et al. Less than 4.7 dB Noise Figure Broadband In-line EDFA with A Raman Amplified -1300 ps/nm DCF Pumped by Multi-channel WDM Laser Diodes , 1998 .