A novel solution of frequency locking in homodyne coherent receiver

Limeng Wang; Yang'an Zhang; Yan Hong; Huihui Ma; Yue Zhang

doi:10.1117/12.2193532

5 August 2015 A novel solution of frequency locking in homodyne coherent receiver

Limeng Wang, Yang'an Zhang, Yan Hong, Huihui Ma, Yue Zhang

Proceedings Volume 9621, 2015 International Conference on Optical Instruments and Technology: Advanced Lasers and Applications; 962111 (2015) https://doi.org/10.1117/12.2193532
Event: International Conference on Optical Instruments and Technology 2015, 2015, Beijing, China

Abstract

A novel solution of frequency locking based on beat frequency detection in homodyne coherent receiver is presented and experimentally demonstrated. The beat frequency detection, using two beat frequency signals generated by a balance detector module, is easily to eliminate the noise introduced during long distance transmission. Furthermore, FPGA, as the core of the control unit, is adopted to change the resulting frequency of OVCO on the basis of the frequency deviation. The proposed scheme is tested more efficiency and higher stability than the previously single path feedback loop.

Citation Download Citation

Limeng Wang, Yang'an Zhang, Yan Hong, Huihui Ma, and Yue Zhang "A novel solution of frequency locking in homodyne coherent receiver", Proc. SPIE 9621, 2015 International Conference on Optical Instruments and Technology: Advanced Lasers and Applications, 962111 (5 August 2015); https://doi.org/10.1117/12.2193532

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