303 MHz高重复频率掺Er光纤飞秒激光器?

物理学报

303 MHz高重复频率掺Er光纤飞秒激光器?

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刘欢, 巩马理, 曹士英, 林百科, 方占军. 2015: 303 MHz高重复频率掺Er光纤飞秒激光器?, 物理学报, null(11): 114210. doi: 10.7498/aps.64.114210

引用本文:

刘欢, 巩马理, 曹士英, 林百科, 方占军. 2015: 303 MHz高重复频率掺Er光纤飞秒激光器?, 物理学报, null(11): 114210. doi: 10.7498/aps.64.114210

Liu Huan, Gong Ma-Li, Cao Shi-Ying, Lin Bai-Ke, Fang Zhan-Jun. 2015: A 303 MHz fundamental rep etition rate femtosecond Er:fiber ring laser, Acta Physica Sinica, null(11): 114210. doi: 10.7498/aps.64.114210

Citation:

Liu Huan, Gong Ma-Li, Cao Shi-Ying, Lin Bai-Ke, Fang Zhan-Jun. 2015: A 303 MHz fundamental rep etition rate femtosecond Er:fiber ring laser, Acta Physica Sinica, null(11): 114210. doi: 10.7498/aps.64.114210

303 MHz高重复频率掺Er光纤飞秒激光器?

清华大学精密仪器系，激光与光子技术研究室，北京 100084
中国计量科学研究院，时间频率计量研究所，北京 100029

A 303 MHz fundamental rep etition rate femtosecond Er:fiber ring laser

摘要: 高重复频率掺Er光纤飞秒激光器在光学频率梳、超高速光学采样等领域具有很重要的作用.本文采用非线性偏振旋转锁模机理，在掺Er光纤飞秒激光器中实现了重复频率为303 MHz的锁模脉冲输出.通过优化腔内色散，激光器腔内色散在零色散附近偏负值，锁模后工作在展宽脉冲锁模状态.在817 mW抽运功率下，激光器在连续光状态下可以输出125 mW的平均功率，在锁模状态下可以输出69 mW的平均功率，脉冲宽度为90 fs.当抽运功率处于700—817 mW时，激光器可以实现自启动锁模.激光器重复频率在5 h内的漂移量为30 Hz.
- 掺Er光纤激光器 /
- 光纤光学频率梳 /
- 光学频率计量
Abstract: High-repetition-rate fiber laser has widely applications in the field of femtosecond frequency comb, ultra-fast optical sampling, and so on. In this paper, an Er-doped femtosecond fiber laser with a repetition rate of 303 MHz is demonstrated based on the mechanism of nonlinear polarization rotation. By means of optimization of cavity dispersion, the net dispersion in fiber cavity is a little negative nearby zero point. After mode locking, the laser is operating in the stretched-pulse regime. At a pump power of 817 mW, the output power of the laser is 125 mW in continue-wave state, and 69 mW in mode-locking state. The laser directly generates 90 fs before dispersion compensation. Mode locking can self-start at the pump power of 700—817 mW. Repetition rate drift of the mode-locked laser is 30 Hz in five hours.

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303 MHz高重复频率掺Er光纤飞秒激光器?

清华大学精密仪器系，激光与光子技术研究室，北京 100084
中国计量科学研究院，时间频率计量研究所，北京 100029

关键词:

摘要: 高重复频率掺Er光纤飞秒激光器在光学频率梳、超高速光学采样等领域具有很重要的作用.本文采用非线性偏振旋转锁模机理，在掺Er光纤飞秒激光器中实现了重复频率为303 MHz的锁模脉冲输出.通过优化腔内色散，激光器腔内色散在零色散附近偏负值，锁模后工作在展宽脉冲锁模状态.在817 mW抽运功率下，激光器在连续光状态下可以输出125 mW的平均功率，在锁模状态下可以输出69 mW的平均功率，脉冲宽度为90 fs.当抽运功率处于700—817 mW时，激光器可以实现自启动锁模.激光器重复频率在5 h内的漂移量为30 Hz.

English Abstract

A 303 MHz fundamental rep etition rate femtosecond Er:fiber ring laser

清华大学精密仪器系，激光与光子技术研究室，北京 100084
中国计量科学研究院，时间频率计量研究所，北京 100029

Keywords:

Abstract: High-repetition-rate fiber laser has widely applications in the field of femtosecond frequency comb, ultra-fast optical sampling, and so on. In this paper, an Er-doped femtosecond fiber laser with a repetition rate of 303 MHz is demonstrated based on the mechanism of nonlinear polarization rotation. By means of optimization of cavity dispersion, the net dispersion in fiber cavity is a little negative nearby zero point. After mode locking, the laser is operating in the stretched-pulse regime. At a pump power of 817 mW, the output power of the laser is 125 mW in continue-wave state, and 69 mW in mode-locking state. The laser directly generates 90 fs before dispersion compensation. Mode locking can self-start at the pump power of 700—817 mW. Repetition rate drift of the mode-locked laser is 30 Hz in five hours.

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