Study of the polarization conversion characteristics of surface liquid crystal vertical cavity surface emitting lasers

Xiaoyu Zhang; Yan Wen; Wenxuan Ye; Hongzhuo Wang; Baolu Guan

doi:10.1117/12.2690166

17 August 2023 Study of the polarization conversion characteristics of surface liquid crystal vertical cavity surface emitting lasers

Xiaoyu Zhang, Yan Wen, Wenxuan Ye, Hongzhuo Wang, Baolu Guan

Author Affiliations +

Proceedings Volume 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023); 127570Y (2023) https://doi.org/10.1117/12.2690166
Event: 3rd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2023), 2023, Kunming, China

Abstract

In this paper, the optical power of a vertical cavity surface emitting laser (VCSELs) orthogonal line polarization light was measured and analyzed at different liquid crystal (LC) layer design using a nematic LC layer as a laser polarization control unit integrated into the surface of VCSELs. The experimental results show that, after the integration of the LC, as the design of the LC layer increases, the first jump point of laser polarisation is gradually delayed, and the current value ∆I between the first and second jump points gradually increases, with the design of the liquid crystal layer being 10µm, ∆I is 2.5mA, which is 1.5 times higher than without the LC. It can be seen that by varying the design of the surface LC layer, the orthogonal line polarization stabilization range of the VCSELs can be effectively extended, which provides a theoretical and experimental basis for the design and fabrication of high quality single polarization stabilized LC-VCSEL.

Citation Download Citation

Xiaoyu Zhang, Yan Wen, Wenxuan Ye, Hongzhuo Wang, and Baolu Guan "Study of the polarization conversion characteristics of surface liquid crystal vertical cavity surface emitting lasers", Proc. SPIE 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023), 127570Y (17 August 2023); https://doi.org/10.1117/12.2690166

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