Wide Range Controllable Direction Single Emission Peak Microstructured Lasers Array

Autor: Yibo Yang, Zheng Wang, Yufei Wang, Sidra Farouk, Zhimin Ji, Xiuyan Sun, Pengfei Wang, Xuliang Zhou, Jiaoqing Pan, Yanmei Su, Yejin Zhang
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: IEEE Photonics Journal, Vol 16, Iss 3, Pp 1-5 (2024)
Druh dokumentu: article
ISSN: 1943-0655
DOI: 10.1109/JPHOT.2024.3399763
Popis: In this paper, a single emission peak microstructured lasers array for beam control is proposed. And lasers in the array can emit beams in specific directions with low vertical divergence angles. The initial phase control is introduced to solve the problem of multiple emission peaks in a vertical far-field pattern. Both simulation and experimental analyses corroborate that the intensity of high-order diffraction peaks can be suppressed by introducing an appropriate starting position. Experimental results showcase the achievement of a low vertical divergence angle of 0.95° and an expansive angle sweep range of 61.2°. Furthermore, leveraging a taper structure, a horizontal divergence angle of 3.7° and a typical optical output power of 28 mW are obtained.
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