飞秒
光学
材料科学
光纤激光器
光纤布拉格光栅
激光器
啁啾声
物理
作者
Zhao Zhang,Tong Zhang,Zhiguo Lv,Ting Zhang,Haihao Cheng,Xiaohong Hu,Ruikun Pan,Yutong Feng,Yishan Wang
出处
期刊:Applied Optics
[The Optical Society]
日期:2022-09-27
卷期号:61 (28): 8475-8475
摘要
Based on the time-independent rate equations and nonlinear Schrödinger equation, we simulate a 200 MHz all-polarization-maintaining (PM) mode-locked Yb-doped fiber laser. The cavity round trip evolution toward stable mode locking is present. Additionally, the gain coefficients along the gain fiber as well as the pulses, chirp, and spectra at different locations in the cavity are examined. The effects of chirped fiber Bragg grating parameters on the pulse shape and spectrum profile are also investigated. According to the calculations, we experimentally realize a 200 MHz femtosecond fiber laser with 115 mW output power. The timing jitter and integrated relative intensity noise are measured as 158 fs (1 kHz to 10 MHz) and 0.0513% (1 Hz to 300 kHz), respectively. Eventually, an amplified average power of 610 mW and 79 fs compressed pulses with a peak power of approximately 28 kW are obtained. The exhibited all-PM femtosecond fiber laser system can be adopted as the foundation for an optical frequency comb.
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