Watt-level long-term stable ultra-narrow linewidth 1064 nm single-longitudinal-mode ring cavity fiber oscillator.

IF 3.2 2区 物理与天体物理 Q2 OPTICS
Optics express Pub Date : 2024-11-04 DOI:10.1364/OE.535001
Hao Pan, Xiaobing Liu, Haowei Liu, Xiumei Yang, Cheng Qian
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引用次数: 0

Abstract

This study presents a high-power, single-longitudinal-mode (SLM) fiber oscillator with a ring cavity design, operating at 1064 nm. Utilizing a double-cladding ytterbium-doped fiber as the gain medium, the system incorporates a fiber Bragg grating Fabry-Perot cavity and a dual coupler ring for step-by-step filtering to achieve SLM operation. With a pump power of 4.19 W, the oscillator delivered an output power of 1.01 W and narrowed the linewidth to 147 Hz, with the potential for further power increase. The oscillator demonstrated excellent longitudinal-mode stability, maintaining mode-hop-free operation for 8.7 hours after temperature stabilization. To the best of our knowledge, this work represents the longest duration of mode-hop-free operation and the narrowest laser linewidth achieved by a free-running ring-cavity SLM fiber oscillator at watt-level output powers.

瓦特级长期稳定超窄线宽 1064 nm 单纵模环腔光纤振荡器。
本研究介绍了一种采用环形腔设计的高功率单纵模(SLM)光纤振荡器,工作波长为 1064 nm。该系统利用双包层掺镱光纤作为增益介质,并结合了光纤布拉格光栅法布里-珀罗腔和用于逐步滤波的双耦合环,以实现 SLM 操作。该振荡器的泵浦功率为 4.19 W,输出功率为 1.01 W,线宽缩小至 147 Hz,并有可能进一步提高功率。该振荡器表现出卓越的纵向模式稳定性,在温度稳定后的 8.7 小时内保持无模式跳变运行。据我们所知,这项工作代表了自由运行环腔 SLM 光纤振荡器在瓦级输出功率下实现的最长无跳模运行时间和最窄激光线宽。
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 express
Optics express 物理-光学
CiteScore
6.60
自引率
15.80%
发文量
5182
审稿时长
2.1 months
期刊介绍: Optics Express is the all-electronic, open access journal for optics providing rapid publication for peer-reviewed articles that emphasize scientific and technology innovations in all aspects of optics and photonics.
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