Dual-bandpass filter for self-starting mode-locking in All-PM NALM-based fiber laser

M. Nishiura; T. Shioda

doi:10.1117/12.2576390

5 March 2021 Dual-bandpass filter for self-starting mode-locking in All-PM NALM-based fiber laser

M. Nishiura, T. Shioda

Proceedings Volume 11665, Fiber Lasers XVIII: Technology and Systems; 1166528 (2021) https://doi.org/10.1117/12.2576390
Event: SPIE LASE, 2021, Online Only

Conference Poster

Abstract

We report superiorities of a NALM-based all-PM fiber laser incorporating dual-bandpass filter instead of ordinal single narrow bandpass filter. The fiber laser starts mode-locking quickly with relatively low pump powers. Shorter wavelength bandpass window component of dual-BPF is used for inducing Q-switched mode-locking and enlarging amplitude noise. Longer wavelength bandpass window component is used for keeping CW mode-locking. Once the laser starts modelocking at longer wavelength window, spectrum components in shorter wavelength window are negligible. The laser produces various of ultra-fast pulses by adjusting longer wavelength window property.

Conference Presentation

Citation Download Citation

M. Nishiura and T. Shioda "Dual-bandpass filter for self-starting mode-locking in All-PM NALM-based fiber laser", Proc. SPIE 11665, Fiber Lasers XVIII: Technology and Systems, 1166528 (5 March 2021); https://doi.org/10.1117/12.2576390

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