Iterative learning pre-distortion linearization for hybrid integrated frequency-modulated continuous-wave laser source

Liwei Tang; Hongxiang Jia; Sigang Yang; Hongwei Chen; Minghua Chen

doi:10.1117/12.2600550

9 October 2021 Iterative learning pre-distortion linearization for hybrid integrated frequency-modulated continuous-wave laser source

Liwei Tang, Hongxiang Jia, Sigang Yang, Hongwei Chen, Minghua Chen

Author Affiliations +

Proceedings Volume 11891, Semiconductor Lasers and Applications XI; 118910B (2021) https://doi.org/10.1117/12.2600550
Event: SPIE/COS Photonics Asia, 2021, Nantong, JS, China

Abstract

A pre-distortion linearization of frequency modulation based on thermal tuning by iterative learning is proposed. The update algorithm is related both to the residual frequency error and its first-order differential. A narrow linewidth laser with a repetition rate of 100 Hz, 500 Hz, 1 kHz, and 2.5 kHz is experimentally demonstrated. When a least-squares linear fitting is applied to the averaged laser frequency sweep, the linear regression coefficient 1 − r² is calculated less than 10⁻⁷. The proposed method provides clues for the realization of the linear frequency modulation continuous wave source and has a possibility to achieve given arbitrary frequency modulation waveforms.

Conference Presentation

Citation Download Citation

Liwei Tang, Hongxiang Jia, Sigang Yang, Hongwei Chen, and Minghua Chen "Iterative learning pre-distortion linearization for hybrid integrated frequency-modulated continuous-wave laser source", Proc. SPIE 11891, Semiconductor Lasers and Applications XI, 118910B (9 October 2021); https://doi.org/10.1117/12.2600550

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