Theoretical and experimental research on output characteristics of oscillating-amplifying integrated fiber laser

Photonics and Optoelectronics Meetings Pub Date : 2023-04-10 DOI:10.1117/12.2672834

Lingfa Zeng, C. Shi, Hairong Zhong, Peng Wang, Baolai Yang, Xiaoming Xi, Hanwei Zhang, Xiao-lin Wang, Xiaojun Xu

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引用次数: 1

Abstract

Oscillating-amplifying integrated fiber laser (OAIFL) can take into account the advantages of fiber laser oscillators and amplifiers, including well anti-back reflected light ability, high conversion efficiency, good nonlinear suppression capability and compact structure. In this work, based on the steady-state rate equations of the fiber laser, combined with the special boundary conditions of OAIFL, the rate equation model of the OAIFL is established. Based on this model, the effects of the pump configuration, the fiber length ratio of the oscillating section and the amplifying section, and the reflectivity of the output coupler fiber Bragg grating on the output characteristics of the OAIFL are theoretically studied. In addition, experiments are carried out to verify the reliability of the pump control logic of the laser under different pump configurations. The results show that OAIFL can maintain a safe working state when using the pump control sequence that inevitably causes laser burnout in conventional fiber laser amplifiers.

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振荡放大集成光纤激光器输出特性的理论与实验研究

振荡放大型集成光纤激光器(OAIFL)综合了光纤激光振荡器和放大器抗反反射光性能好、转换效率高、非线性抑制能力强、结构紧凑等优点。本文在光纤激光器稳态速率方程的基础上，结合OAIFL的特殊边界条件，建立了OAIFL的速率方程模型。基于该模型，从理论上研究了泵浦结构、振荡段与放大段的光纤长度比以及输出耦合器光纤光栅的反射率对OAIFL输出特性的影响。此外，通过实验验证了不同泵浦配置下激光器泵浦控制逻辑的可靠性。结果表明，采用常规光纤激光放大器中不可避免的泵浦控制顺序，OAIFL仍能保持安全工作状态。

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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Photonics and Optoelectronics Meetings

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