材料科学
光学
光纤激光器
飞秒
激光器
放大
包层(金属加工)
自相位调制
模式锁定
超短脉冲
光电子学
非线性光学
物理
冶金
作者
Svetlana S. Aleshkina,Denis S. Lipatov,Vladimir V. Velmiskin,V. L. Temyanko,Mikhail E. Likhachev
出处
期刊:IEEE Photonics Technology Letters
[Institute of Electrical and Electronics Engineers]
日期:2020-07-01
卷期号:32 (13): 811-814
被引量:11
标识
DOI:10.1109/lpt.2020.2998902
摘要
A cladding-pumped all-fiber chirped femtosecond pulse Yb-doped mode-locked laser operating near 977 nm was demonstrated for the first time. Nonlinear polarization evolution was used as the mode-locking mechanism. The laser was self-starting and extremely stable (the stability of the repetition rate of 41.6 MHz was better than that of 15 Hz). Amplification near 977 nm was achieved using a specially designed cladding-pumped Yb-doped fiber. The main feature of the current laser design was its increased intracavity nonlinearity, which resulted in a strong self-phase modulation and significant widening of the generated pulse spectrum. This nonlinearity allowed us to generate pulses compressible down to a duration of 230 fs using an external diffraction grating compressor.
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