Gigahertz Repetition Rate Kerr-Lens Mode-Locked Oscillator With Above 7-W Average Power

IF 2.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2025-03-06 DOI:10.1109/LPT.2025.3548848

Li Zheng;Jie Tao;Xinkuan Wang;Tuanjun Han;Chaojun Huang;Wenlong Tian;Geyang Wang;Yang Yu;Zhiyi Wei;Jiangfeng Zhu

引用次数: 0

Abstract

We present a soft-aperture Kerr-lens mode-locked Yb:KGW oscillator capable of generating multi-watt average output power at gigahertz repetition rate. Using a dual-confocal ring cavity design, the laser waist inside the Yb:KGW crystal matched well with a multi-mode fiber-coupled laser diode. At the pump power of 42 W, double-pulse modelocking is observed due to high-power operation, and the transition from double-pulse operation to single-pulse operation is realized when increasing the negative intracavity group delay dispersion. The stable single-pulse modelocking with 7.73-W average output power and 189-fs pulse duration at 1.68-GHz is achieved. This is the highest average output power ever reported from any soft-aperture Kerr-lens mode-locked (KLM) oscillators operating at GHz repetition rate, as far as we are aware.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.