Beam waist shrinkage of high-power broad-area diode lasers by mode tailoring | Zendy

Jiaxin Su | Zendy; Cunzhu Tong | Zendy; Lijie Wang | Zendy; Yanjing Wang | Zendy; Huanyu Lu | Zendy; Zhide Zhao | Zendy; Jun Wang | Zendy; Shaoyang Tan | Zendy; ShiLi Shu | Zendy; Lijun Wang | Zendy

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Beam waist shrinkage of high-power broad-area diode lasers by mode tailoring

Author(s) -

Jiaxin Su,

Cunzhu Tong,

Lijie Wang,

Yanjing Wang,

Huanyu Lu,

Zhide Zhao,

Jun Wang,

Shaoyang Tan,

ShiLi Shu,

Lijun Wang

Publication year - 2020

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.390265

Subject(s) - materials science , laser beam quality , optics , diode , laser , beam (structure) , optoelectronics , shrinkage , semiconductor laser theory , laser diode , laser beams , physics , composite material

A new approach was proposed and its role in improvement of the beam quality of high-power broad-area diode lasers was demonstrated, in which a composite arrow array and trench microstructure was used to suppress the beam waist and tailor the high order lateral modes. The beam waist shows a special shrinkage with increasing injection current resulting from the combined effect of mode tailoring and the thermal lens effect. A 58% improvement in lateral beam parameter product was realized compared with conventional broad-area diode lasers.

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