Low pump power co-fiber remotely pumped EDFA used in DWDM systems with ultra-long fiber span

• 作 者: 张帆 张巍 王燕 彭江得
• 机 构: Electronic Engineering Department, Tsinghua University, Beijing 100084,Electronic Engineering Depart
• 出 处: Chinese Optics Letters
• 发表日期: 2005年10期
• 关键词: EDFA pumped remotely amplifier figure Figure saturation providing Configuration

In this paper, aiming at practical dense wavelength division multiplexing (DWDM) system with ultra-long fiber span, a simple co-fiber remotely pumped erbium-doped fiber amplifier (RP-EDFA) scheme isproposed to extend span distance with simple configuration and low pump power. Equivalent noise figureof —6 dB is achieved under 300-mW pump power. Using the experiment results, numerical simulation ofultra-long span systems shows that for a 40 × 11.6-Gb/s transmission system, the RP-EDFA scheme cansupport transmission of 1760 km with a fiber span of 160 km. These results demonstrate the potential ofthe PR-EDFA scheme in ultra-long span transmission.

In this paper, aiming at practical dense wavelength division multiplexing (DWDM) system with ultra-long fiber span, a simple co-fiber remotely pumped erbium-doped fiber amplifier (RP-EDFA) scheme isproposed to extend span distance with simple configuration and low pump power. Equivalent noise figure of -6 dB was achieved at 300-mW pump power. Using the experiment results, numerical simulation ofultra-long span systems shows that for a 40 × 11.6-Gb / s transmission system, the RP-EDFA scheme cansupport transmission of 1760 km with a span of 160 km. These results demonstrate the potential of the PR-EDFA scheme in ultra-long span transmission.