Laser & Optoelectronics Progress, Volume. 61, Issue 11, 1116007(2024)

Research on Bias Point Control Technology for Array-Type Electro-Optical Modulators Based on Lithium Niobate (Invited)

Haoyang Zhang, Zuoxin Kuang, Guanyu Chen, and Hua Yu*
Author Affiliations
  • Key Laboratory of Optoelectronic Technology & System, Ministry of Education, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China
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    Due to the influence of inherent characteristics of material, the bias operating point of electro-optic modulator may drift with changes in environment, thereby affecting the modulation performance of the modulator. To solve the bias point drift issue of lithium niobate Mach-Zehnder electro-optic modulators, bias control techniques suitable for 4-array parallel electro-optic modulators is researched. Based on time division multiplexing, adjustable gain amplitude, dual pattern recognition, and other methods, a control method combining optical power and disturbance signal amplitude detection is proposed, which reduces hardware redundancy and achieves precise control of the bias operating point.

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    Haoyang Zhang, Zuoxin Kuang, Guanyu Chen, Hua Yu. Research on Bias Point Control Technology for Array-Type Electro-Optical Modulators Based on Lithium Niobate (Invited)[J]. Laser & Optoelectronics Progress, 2024, 61(11): 1116007

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    Paper Information

    Category: Materials

    Received: Apr. 26, 2024

    Accepted: May. 18, 2024

    Published Online: Jun. 17, 2024

    The Author Email: Yu Hua (yuhua@cqu.edu.cn)

    DOI:10.3788/LOP241176

    CSTR:32186.14.LOP241176

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