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Chinese Journal of Lasers, Volume. 51, Issue 13, 1301011(2024)

Whispering‑Gallery‑Mode Resonator Self‑Injection Locking Method Based on Enhanced Optical Feedback with Auxiliary Prism

Jiajun Wu1,2, Shan Zhong1、*, and Songbai Kang1、**
Author Affiliations
  • 1Key Laboratory of Atomic Frequency Standards, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, Hubei , China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
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    Figures & Tables(5)
    Schematic diagram of enhancing optical WGMR feedback intensity through auxiliary prism

    Fig. 1. Schematic diagram of enhancing optical WGMR feedback intensity through auxiliary prism

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    Test platform of enhanced feedback with auxiliary prism. (a) Magnesium fluoride crystal WGMR (top left) and its fundamental mode simulation (top right), and Q value measurement (bottom); (b) diagram of enhanced feedback measurement device with auxiliary prism

    Fig. 2. Test platform of enhanced feedback with auxiliary prism. (a) Magnesium fluoride crystal WGMR (top left) and its fundamental mode simulation (top right), and Q value measurement (bottom); (b) diagram of enhanced feedback measurement device with auxiliary prism

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    Enhancement effect of auxiliary prism on intensity of feedback light with different modes in cavity. (a) TE mode; (b) TM mode

    Fig. 3. Enhancement effect of auxiliary prism on intensity of feedback light with different modes in cavity. (a) TE mode; (b) TM mode

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    Application of enhanced feedback with auxiliary prism in self-injection locking. (a) Diagram of installation; (b) comparison of frequency noise

    Fig. 4. Application of enhanced feedback with auxiliary prism in self-injection locking. (a) Diagram of installation; (b) comparison of frequency noise

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    Effect of enhanced feedback with auxiliary prism on self-injection locking. (a) Laser locking range; (b) comparison of RIN

    Fig. 5. Effect of enhanced feedback with auxiliary prism on self-injection locking. (a) Laser locking range; (b) comparison of RIN

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    Jiajun Wu, Shan Zhong, Songbai Kang. Whispering‑Gallery‑Mode Resonator Self‑Injection Locking Method Based on Enhanced Optical Feedback with Auxiliary Prism[J]. Chinese Journal of Lasers, 2024, 51(13): 1301011

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    Paper Information

    Category: laser devices and laser physics

    Received: Dec. 12, 2023

    Accepted: Feb. 6, 2024

    Published Online: Jul. 2, 2024

    The Author Email: Shan Zhong (kangsongbai@apm.ac.cn), Songbai Kang (zhongshan@apm.ac.cn)

    DOI:10.3788/CJL231515

    CSTR:32183.14.CJL231515

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology