High-power mode-locked thulium-doped fiber laser with tungsten ditelluride as saturable absorber

Zhijian Zheng; Jintao Wang; Jinde Yin; Deqin Ouyang; Xikui Ren; Peiguang Yan; Jinzhang Wang; Jihong Pei; Qitao Lue; Shuangchen Ruan

doi:10.1364/AO.59.000196

High-power mode-locked thulium-doped fiber laser with tungsten ditelluride as saturable absorber

Appl Opt. 2020 Jan 1;59(1):196-200. doi: 10.1364/AO.59.000196.

Authors

Zhijian Zheng, Jintao Wang, Jinde Yin, Deqin Ouyang, Xikui Ren, Peiguang Yan, Jinzhang Wang, Jihong Pei, Qitao Lue, Shuangchen Ruan

PMID: 32225288
DOI: 10.1364/AO.59.000196

Abstract

A passively mode-locked thulium-doped fiber laser using a tungsten ditelluride saturable absorber (${{\rm WTe}_2}\mbox{-}{\rm SA}$WTe₂-SA) is demonstrated. High-power mode-locked pulses with an average output power of 108.1 mW were achieved by incorporating the ${{\rm WTe}_2}\mbox{-}{\rm SA}$WTe₂-SA into a thulium-doped fiber oscillator. To the best of our knowledge, this is the highest average power obtained from a ${{\rm WTe}_2}\mbox{-}{\rm SA}$WTe₂-SA-based fiber laser. We further amplified the output power to 5.60 W with an all-fiber thulium-doped double-cladding fiber amplifier. Our result indicates that ${{\rm WTe}_2}\mbox{-}{\rm SA}$WTe₂-SA could be an excellent candidate for a high-power fiber laser system.