FP semiconductor lasers based on lateral mode modulation

Kang Zhang; Hailing Wang; Fengxin Dong; Xuyan Zhou; Jianxin Zhang; Lichang Wang; Xueshuang Wang; Yankun Wang; Yanqing Jia; Hongwei Qu

doi:10.1117/12.3033348

14 August 2024 FP semiconductor lasers based on lateral mode modulation

Kang Zhang, Hailing Wang, Fengxin Dong, Xuyan Zhou, Jianxin Zhang, Lichang Wang, Xueshuang Wang, Yankun Wang, Yanqing Jia, Hongwei Qu

Author Affiliations +

Proceedings Volume 13248, Fourth Optics Frontier Conference (OFS 2024); 132480S (2024) https://doi.org/10.1117/12.3033348
Event: Fourth Optics Frontier Conference (OFS 2024), 2024, Hangzhou, China

Abstract

With the widespread application of Ethernet Passive Optical Network (EPON) technology, higher demands are placed on the output fiber power of devices. In the realm of semiconductor chips, increasing the power of semiconductor lasers stands as an effective approach. This paper proposes a Fabry-Perot (FP) semiconductor laser with lateral mode control based on step-index waveguide. This design aims to meet both power and divergence angle requirements. Through simulation and experimental verification, a series of chips have been successfully fabricated. Under a continuous current of 500 mA at room temperature, the output powers corresponding to ridge waveguide widths of 3 μm, 4 μm, and5μmare 182.06 mW, 198.23 mW, and 202.07 mW, respectively, with divergence angles of 15.31°, 17.00°, and 17.82°. In comparison, semiconductor lasers with ridge waveguide widths of 3 μm, 4 μm, and 5 μm from the same batch exhibit output powers of 136.26 mW, 224.72 mW, and 221.10 mW, respectively, with divergence angles of 40.22°, 43.01°, and42.56°. Although the power of the new laser slightly decreases, it demonstrates significant advantages in improving the divergence angle, which is acceptable. This innovation is poised to further enhance the output power of optical fibers, meeting the demands of practical optical communication networks. Additionally, it holds the potential for wide-ranging applications, characterized by its low cost and high yield rate.

Citation Download Citation

Kang Zhang, Hailing Wang, Fengxin Dong, Xuyan Zhou, Jianxin Zhang, Lichang Wang, Xueshuang Wang, Yankun Wang, Yanqing Jia, and Hongwei Qu "FP semiconductor lasers based on lateral mode modulation", Proc. SPIE 13248, Fourth Optics Frontier Conference (OFS 2024), 132480S (14 August 2024); https://doi.org/10.1117/12.3033348

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