Low-repetition-rate, all-polarization-maintaining Yb-doped fiber laser mode-locked by a semiconductor saturable absorber

• 来源期刊: 中国物理B（英文版）
• 关键词: mode-locked fiber laser polarization maintaining master oscillator power amplifier
• 年，卷（期）: 2017,（11）
• 页码范围: 216-220
• 页数: 5页
• 语种: 英文
• DOI: 10.1088/1674-1056/26/11/114204

摘要

A low-repetition-rate,all-polarization-maintaining (PM)-fiber sub-nanosecond oscillator is presented,which is simple and low-cost,composed of standard components.The ring cavity is elongated by 114-m-long standard PM fiber,and passively mode-locked by a fiber pigtailed semiconductor saturable absorber.Linearly polarized pulses with 1.66 MHz repetition rate and 22 dB polarization extinction ratio are generated at a wavelength of 1030 nm,which is determined by an intracavity filter.In addition,to demonstrate that the oscillator is a good seed for high energy pulse generation,an all-fiber master oscillator power amplifier is built and amplified pulses with energy about 2 μJ are obtained.