Watt-Level Diode-End-Pumped Self-Mode-Locked Tm,Ho:LLF Laser

Su Zhang; Liheng Ma; Wen Liu; Chunsheng Sun; Hongwei Han; Qingping Hu; Shuang Zhang; Li Kai

doi:10.3390/photonics10101133

Photonics (Oct 2023)

Watt-Level Diode-End-Pumped Self-Mode-Locked Tm,Ho:LLF Laser

Su Zhang,
Liheng Ma,
Wen Liu,
Chunsheng Sun,
Hongwei Han,
Qingping Hu,
Shuang Zhang,
Li Kai

Affiliations

Su Zhang: College of Weapons Engineering, Naval University of Engineering, Wuhan 430033, China
Liheng Ma: College of Weapons Engineering, Naval University of Engineering, Wuhan 430033, China
Wen Liu: College of Weapons Engineering, Naval University of Engineering, Wuhan 430033, China
Chunsheng Sun: College of Weapons Engineering, Naval University of Engineering, Wuhan 430033, China
Hongwei Han: College of Weapons Engineering, Naval University of Engineering, Wuhan 430033, China
Qingping Hu: College of Weapons Engineering, Naval University of Engineering, Wuhan 430033, China
Shuang Zhang: College of Weapons Engineering, Naval University of Engineering, Wuhan 430033, China
Li Kai: College of Weapons Engineering, Naval University of Engineering, Wuhan 430033, China

DOI: https://doi.org/10.3390/photonics10101133
Journal volume & issue: Vol. 10, no. 10
p. 1133

Abstract

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A diode-end-pumped self-mode-locked Tm,Ho:LuLiF4 (LLF) laser is demonstrated for the first time, to the best of our knowledge. At the incident pump power of 3.4 W, the stable self-mode-locked operation of the Tm,Ho:LLF laser was realized without any additional devices in the resonator. Further increasing the incident pump power to 6.8 W, the maximum average output power of 1.07 W was achieved at 2068 nm with a pulse width of 746 ps and a repetition frequency of 468 MHz. The experimental results indicate that the Tm,Ho:LLF crystal is promising to generate the high-power self-mode-locked solid-state laser at 2 μm waveband. The self-mode-locked Tm,Ho:LLF laser has potential applications in optical communication, remote sensing, material process, and nonlinear frequency conversion.

Published in Photonics

ISSN: 2304-6732 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics
Website: http://www.mdpi.com/journal/photonics

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