High Brightness Diode Laser Based on V-Shaped External Cavity and Beam-Waist Splitting Polarization Combining-Reference-Cited by-同舟云学术

High Brightness Diode Laser Based on V-Shaped External Cavity and Beam-Waist Splitting Polarization Combining

Published:2023-02-07 Issue:4 Volume:13 Page:2125
ISSN:2076-3417
Container-title:Applied Sciences
language:en
Short-container-title:Applied Sciences

Author:

Zhao Yufei¹,Tong Cunzhu²,Wei Zhipeng¹,Feng Jian²^ORCID,Wang Lijie²

Affiliation:

1. Key Laboratory of High Power Semiconductor Lasers, School of Physics, Changchun University of Science and Technology, Changchun 130022, China

2. State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China

Abstract

A beam combining method to improve the brightness of diode lasers is proposed based on a V-shaped external cavity spectral beam and beam-waist splitting polarization combination. This design has the outstanding advantages of improving the beam quality, brightness, and versatility of the diode laser. Specifically, an output power over 16W with M2 factors of 1.79 × 3.92 (Beam Parameter Product BPP = 0.55 × 1.22 mm mrad) at 40 A in the fast and slow axis is demonstrated for a commercial standard cm-bar. Furthermore, the slow axis M2 of the combined laser is improved by 56% compared with that of a single emitter. Additionally, the brightness of 262 MW·cm−2·sr−1, 136% higher than that of spectral beam combining without using beam-waist splitting polarization, was realized.

Funder

National Natural Science Foundation of China

Publisher

MDPI AG

Subject

Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science

Link

https://www.mdpi.com/2076-3417/13/4/2125/pdf

Reference37 articles.

1. High-brightness fiber-coupled diode module using dense wavelength beam combining technology based on single emitter for material processing and fiber amplifier pumping;Yu;Proc. SPIE,2022

2. 16kW single mode CW laser with dynamic beam for material processing;Eyal;Proc. SPIE,2020

3. kW-class diode laser bars;Strohmaier;Proc. SPIE,2017

4. Power scaling of mini-bar-based high-power 780–980 nm pump modules at Spectra Physics;Daming;Proc. SPIE,2009

5. High-power laser diode at 9xx nm with 81.10% efficiency;Wang;Opt. Lett.,2022