Raman-Assisted Passively Mode-Locked Fiber Laser

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2018,（4）
• 页码范围: 35-37
• 页数: 3页
• 语种: 英文
• DOI: 10.1088/0256-307X/35/4/044201

摘要

We propose and demonstrate a Raman-assisted passively mode-locked Yb-doped fiber laser in a normal dispersion regime.A section of highly nonlinear fiber is adopted to enhance the nonlinearity to extend the bandwidth of the gain spectrum by the stimulated Raman effect.The mode-locked fiber laser emits a broad spectral bandwidth of 64 nm at the-20 dB level and a highly stable pulse operation with a signal-to-noise ratio of 77 dB.