Passively Q-switched Tm:YLF laser based on Ho:YAG crystal as a saturable absorber.

IF 3.1 2区物理与天体物理 Q2 OPTICS

Optics letters Pub Date : 2025-06-15 DOI:10.1364/OL.561632

Neria Suliman, Ishay Shalman, Rotem Nahear, Salman Noach

引用次数: 0

Abstract

A millijoule-level passively Q-switched Tm:YLF solid-state laser, utilizing a Ho:YAG as a saturable absorber, is presented. A volume Bragg grating (VBG) is implemented as the output coupler to stabilize the laser wavelength to the holmium absorption peak of 1879.3 nm, thereby overcoming the challenges of using holmium-doped crystals as saturable absorbers and enabling high-energy pulse generation. Pulse energies up to 2.7 mJ at repetition rates up to 100 Hz were achieved, with beam quality measured to be M² < 1.1. This work addresses the limitations of holmium-doped crystals as saturable absorbers for thulium lasers, demonstrating their potential for high-energy pulse production in the 2 μm range.

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基于Ho:YAG晶体作为饱和吸收体的被动调q Tm:YLF激光器。

提出了一种毫焦耳级被动调q Tm:YLF固体激光器，利用Ho:YAG作为可饱和吸收体。采用体积布拉格光栅（VBG）作为输出耦合器，将激光波长稳定在1879.3 nm的钬吸收峰，从而克服了使用掺钬晶体作为可饱和吸收剂和实现高能脉冲产生的挑战。在高达100 Hz的重复频率下，脉冲能量高达2.7 mJ，光束质量测量为M2 μm范围。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optics letters 物理-光学

CiteScore

6.60

自引率

8.30%

发文量

2275

审稿时长

1.7 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.