ASE Suppression in Backward-Pumped Er/Yb Double-Cladding Fiber Amplifier via Cladding Feedback

作者：Bai, Xiaolei; Sheng, Quan^*; Fu, Shijie; Zhang, Haiwei; Cao, Yang; Xie, Zhaoxin; Shi, Wei^*; Yao, Jianquan

来源：IEEE Photonics Journal, 2016, 8(6): 7102207.

DOI：10.1109/JPHOT.2016.2615764

• Amplified spontaneous emission (ASE) suppression
• cladding feedback
• Erbium-Ytterbium
• laser amplifiers
• fiber laser

We demonstrate a backward-pumped 1550 nm narrow-linewidth Erbium-Ytterbium double-cladding fiber amplifier with amplified spontaneous emission (ASE) suppression. Compared with the typical backward-pumped amplifier without feedback, the ASE power can be suppressed by over 2 dB by cladding feedback without other filters. The slope efficiency is 23.2%, which only decreased by 0.4%. The linewidth and relative intensity noise of 4.51 kHz and -92 dBm/Hz are also compared with those of the typical backward-pumped amplifier without feedback.

• 出版日期2016-12
• 单位天津大学