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Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
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无格单模激光集成与不对称的垂直合结构.

Wensai Gao, Ruiying Zhang, Bisheng Qin

    Applied optics
    |August 12, 2025
    PubMed
    概括

    这项研究介绍了一种新的InGaAsP/InP激光器,它使用非对称的垂直合结构,用于单一纵向模式的操作. 这种没有格子的设计可以实现高侧模式抑制和狭窄的线宽,用于先进的光子应用.

    科学领域:

    • 光电学是指光电子产品.
    • 半导体激光器半导体激光器
    • 综合光子学 综合光子学

    背景情况:

    • 费布里 - 佩罗 (FP) 激光器在光子学中是基本的,但通常需要网格来实现单模式操作.
    • 在没有格子的FP激光器中实现单一纵向模式操作是设备小型化和集成的重大挑战.

    研究的目的:

    • 提出和演示一个新的无格的InGaAsP/InP Fabry-Pérot激光器.
    • 为了实现稳定的单一纵向模式运行,使用非对称的垂直合 (AVC) 结构.
    • 调查传输特性并优化侧叶抑制比 (SISR).

    主要方法:

    • 将InGaAsP/InP Fabry-Pérot激光与一个不对称的垂直合 (AVC) 结构集成.
    • 利用双波导垂直合结构的窄带波效应来进行模式选择.
    • 使用传输矩阵模型对传输特性进行理论研究.

    主要成果:

    • 展示一个没有格子的单模激光器.
    • 取得的输出功率超过5mW.
    • 获得了高达40.4dB的侧模式抑制比 (SMSR).
    • 测量了178.5kHz的最小内在线路宽.

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    结论:

    • 拟议的AVC结构有效地使FP激光器在没有格子的情况下实现单条纵向模式运行.
    • 该设备显示了在光通信和传感方面的潜在应用的有希望的性能指标.
    • 无网格设计为光子电路的制造和集成提供了优势.