Enhancement of saturable absorption performance by modifying MoS2 with polypyrrole

Qizhang Qian; Guiqiu Li

doi:10.1117/12.2508666

7 March 2019 Enhancement of saturable absorption performance by modifying MoS₂ with polypyrrole

Qizhang Qian, Guiqiu Li

Proceedings Volume 10896, Solid State Lasers XXVIII: Technology and Devices; 108961P (2019) https://doi.org/10.1117/12.2508666
Event: SPIE LASE, 2019, San Francisco, California, United States

Abstract

A innovative modification method based on polypyrrole (PPy) was developed as an effective way to improve the saturable absorption performance of MoS₂. By employing the homemade MoS₂-PPy copolymers as saturable absorber (SA), a diode-end-pumped passively Q-switched Nd:LLF laser at 1.06 μm was demonstrated. Based on a MoS₂-PPy nanosheet saturable absorber, a pulsed laser output with 93 ns pulse width was achieved, which was nearly half of the pulse width using MoS₂ as saturable absorber. Meanwhile, the pulse peak power reached 75 W.

Citation Download Citation

Qizhang Qian and Guiqiu Li "Enhancement of saturable absorption performance by modifying MoS₂ with polypyrrole", Proc. SPIE 10896, Solid State Lasers XXVIII: Technology and Devices, 108961P (7 March 2019); https://doi.org/10.1117/12.2508666

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KEYWORDS

Molybdenum

Q switched lasers

Saturable absorption

Pulsed laser operation

Crystals

Scanning electron microscopy

Laser damage threshold

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