Nonlinear-mirror mode-locked crystal waveguide laser by intracavity fourth-harmonic loss modulation

We present a nonlinear-mirror (NLM) mode-locked crystal waveguide laser. By adding nonlinear crystals into traditional NLM devices, the fourth harmonic is generated to form loss modulation, which suppresses the Q-switching instability of mode-locked lasers and achieves the optimal equivalent transmi...

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Veröffentlicht in:Optics letters 2023-11, Vol.48 (22), p.6064-6067
Hauptverfasser: Li, Guotai, Han, Jiakun, Li, Shuai, Zhao, Jing, Zhu, Zhanda, Hui, Yongling, Lei, Hong, Li, Qiang
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Sprache:eng
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Zusammenfassung:We present a nonlinear-mirror (NLM) mode-locked crystal waveguide laser. By adding nonlinear crystals into traditional NLM devices, the fourth harmonic is generated to form loss modulation, which suppresses the Q-switching instability of mode-locked lasers and achieves the optimal equivalent transmittance. The NLM mode-locked laser delivers ∼30 W average power with a repetition rate of 32.2 MHz and a pulse width of 950 fs. It is revealed that this novel, to the best of our knowledge, design with simple, robust, and reliable structure has a great potential in the development of high-power mode-locked laser.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.509275