Research on linewidth broadening technology of semiconductor laser based on OptiSystem

Jun Ma; Maochun Li; Hu Liang

doi:10.1117/12.2573429

10 October 2020 Research on linewidth broadening technology of semiconductor laser based on OptiSystem

Jun Ma, Maochun Li, Hu Liang

Proceedings Volume 11545, Semiconductor Lasers and Applications X; 115450H (2020) https://doi.org/10.1117/12.2573429
Event: SPIE/COS Photonics Asia, 2020, Online Only

Conference Poster

Abstract

Interferometric fiber optic gyroscopes driven by lasers are new hotspots in recent years at home and abroad. Semiconductor lasers are considered to be an alternative to traditional broadband light sources due to their high commercial maturity, good average wavelength stability, and low intensity noise. However, the semiconductor laser is a highly coherent light source with a narrow linewidth. When it is used in an interferometric fiber optic gyroscope, it will reintroduce non-ideal characteristics such as Rayleigh scattering, Kerr effect, polarization cross-coupling and so on, which will affect the accuracy of the gyroscope. The linewidth of the semiconductor laser is widened before use. Based on the OptiSystem simulation platform, the article builds a semiconductor laser linewidth widening model, and analyzes and evaluates several different phase modulation broadening techniques and their effects. It has certain guiding significance for the experimental design and engineering application of semiconductor laser linewidth broadening.

Conference Presentation

Citation Download Citation

Jun Ma, Maochun Li, and Hu Liang "Research on linewidth broadening technology of semiconductor laser based on OptiSystem", Proc. SPIE 11545, Semiconductor Lasers and Applications X, 115450H (10 October 2020); https://doi.org/10.1117/12.2573429

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