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Acta Optica Sinica, Volume. 43, Issue 9, 0923001(2023)

Design of 1 kHz-200 MHz Broadband Balanced Homodyne Detector Based on R-C Coupled Circuit

Shaofeng Wang1,2、*, Xuanze Liu2, Hanqing Li2, Kangkang Li2, and Ruifang Dong1、**
Author Affiliations
  • 1Key Laboratory of Time and Frequency Primary Standards, National Time Service Center, Chinese Academy of Sciences, Xi'an 710600, Shaanxi, China
  • 2College of Physics and Electronic Engineering, Shanxi University, Taiyuan 030006, Shanxi, China
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    AbstractGet PDF(in Chinese)
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    Circuit schematic diagram of 1 kHz-200 MHz broadband balanced homodyne detector

    Fig. 1. Circuit schematic diagram of 1 kHz-200 MHz broadband balanced homodyne detector

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    Equivalent noise model of balanced homodyne detector

    Fig. 2. Equivalent noise model of balanced homodyne detector

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    Test devices of balanced homodyne detector

    Fig. 3. Test devices of balanced homodyne detector

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    Shot noise powers under different incident optical powers, detector noise power, and spectrum analyzer noise power. (a) Low frequency band (0-30 kHz); (b) high frequency band (30 kHz-200 MHz)

    Fig. 4. Shot noise powers under different incident optical powers, detector noise power, and spectrum analyzer noise power. (a) Low frequency band (0-30 kHz); (b) high frequency band (30 kHz-200 MHz)

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    Test result of common mode rejection ratio of detector. (a) Low frequency band (0-30 kHz); (b) high frequency band (30 kHz-200 MHz)

    Fig. 5. Test result of common mode rejection ratio of detector. (a) Low frequency band (0-30 kHz); (b) high frequency band (30 kHz-200 MHz)

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    Shaofeng Wang, Xuanze Liu, Hanqing Li, Kangkang Li, Ruifang Dong. Design of 1 kHz-200 MHz Broadband Balanced Homodyne Detector Based on R-C Coupled Circuit[J]. Acta Optica Sinica, 2023, 43(9): 0923001

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    Paper Information

    Category: Optical Devices

    Received: Sep. 26, 2022

    Accepted: Dec. 2, 2022

    Published Online: May. 9, 2023

    The Author Email: Wang Shaofeng (dongruifang@ntsc.ac.cn), Dong Ruifang (wangshaofeng@sxu.edu.cn)

    DOI:10.3788/AOS221746

    Topics

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