2.8 µm 的 InAs/GaSb 超晶格 SESAM 模式锁定氟化物光纤激光器。

IF 3.1 2区物理与天体物理 Q2 OPTICS Optics letters Pub Date : 2024-11-15 DOI:10.1364/OL.539195

Ceben Bao, Xiabing Zhou, Zhipeng Qin, Guoqiang Xie

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引用次数: 0

摘要

我们利用 InAs/GaSb 超晶格（SL）半导体可饱和吸收镜（SESAM）演示了工作波长为 2.8 µm 的模式锁定氟化物光纤激光器。Z 扫描测量结果表明，SL 可饱和吸收层在 2.8 µm 附近具有非带隙非线性特性，饱和通量为 15.9 µJ/cm2，单通调制深度为 2.4%，损伤阈值为 10.4 mJ/cm2。利用这种高损伤阈值 SESAM，我们实现了 2.8 µm 模式锁定 Er:ZBLAN 光纤激光器 1.16 W 的最大平均输出功率，脉冲持续时间为 28.1 ps。平均功率为 224 mW 的连续锁模运行持续了 36 小时，没有出现中断，证明了 InAs/GaSb SL SESAM 在开发中红外锁模氟化物光纤激光器方面的可靠性。

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InAs/GaSb superlattice SESAM mode-locked fluoride fiber laser at 2.8 µm.

We demonstrate a mode-locked fluoride fiber laser operating at 2.8 µm using an InAs/GaSb superlattice (SL) semiconductor saturable absorber mirror (SESAM). Z-scan measurements show that the SL saturable absorber layer possesses off-bandgap nonlinearity near 2.8 µm, with a saturation fluence of 15.9 µJ/cm², a single-pass modulation depth of 2.4%, and a damage threshold of 10.4 mJ/cm². Using this high-damage-threshold SESAM, we achieved a maximum average output power of 1.16 W from the 2.8 µm mode-locked Er:ZBLAN fiber laser, with a pulse duration of 28.1 ps. Continuous mode-locking operation at an average power of 224 mW was sustained for 36 h without interruption, demonstrating the reliability of the InAs/GaSb SL SESAM for the development of mid-infrared mode-locked fluoride fiber lasers.

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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.