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Author(s): Fu, T (Fu, Ting); Chen, JX (Chen, Jingxuan); Wang, YF (Wang, Yufei); Zhou, XY (Zhou, Xuyan); Qi, AY (Qi, Aiyi); Wang, XY (Wang, Xueyou); Dai, YQ (Dai, Yingqiu); Wang, MJ (Wang, Mingjin); Zheng, WH (Zheng, Wanhua)

Source: OPTICS EXPRESS Volume: 31 Issue: 2 Pages: 1858-1867 Article Number: 479111 DOI: 10.1364/OE.479111 Published: JAN 16 2023

Abstract: Semiconductor laser arrays based on the third-order supersymmetric (SUSY) trans-formation are proposed to increase the mode discrimination between fundamental supermode and high-order supermodes. The distance between the edge waveguide of the main array and that of the superpartners is optimized. Then, the electric field distributions of different modes are also calculated, which show that, except for the fundamental supermode, the high-order supermodes penetrate deeper into the superpartner arrays, which accounts for the increased loss of high-order supermodes. The fabricated third-order SUSY laser array can emit light with a single-lobe far-field pattern under an injection current of 70 mA, which is a promising candidate for optical couplings between lasers and optical elements. (c) 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

Accession Number: WOS:000927775000002

ISSN: 1094-4087

Full Text: https://opg.optica.org/oe/fulltext.cfm?uri=oe-31-2-1858&id=524820