Design and simulation of high brightness green LD fiber coupling module

Hongli Wu; Wenbin Qin; Yinhua Cao; Menghua Jiang; Youqiang Liu

doi:10.1117/12.3011139

1 November 2023 Design and simulation of high brightness green LD fiber coupling module

Hongli Wu, Wenbin Qin, Yinhua Cao, Menghua Jiang, Youqiang Liu

Proceedings Volume 12917, International Conference on Precision Instruments and Optical Engineering (PIOE 2023); 1291716 (2023) https://doi.org/10.1117/12.3011139
Event: 3rd International Conference on Precision Instruments and Optical Engineering (PIOE 2023), 2023, Shanghai, China

Abstract

In this paper, a fiber-coupled module based on a TO-can green LD single-tube light source is designed. The module adopts the fast and slow axis collimation method, to obtain the fast and slow axis beam quality close to the near-circular collimated light, LD hexagonal stacking mode arrangement, the design of the reflecting prisms with parallel flat plate and light wedge beam shrinking device for the beam of the spatial density row, effectively reducing the "dead zone", so as to take full advantage of the optical fiber numerical aperture to improve the output brightness of the fiber coupling. The output brightness of the fiber coupling is improved. The simulation verifies that 19 green LDs with a power of 1.65W are coupled into a fiber with a numerical aperture of 0.22 and a core diameter of 50μm, with an output power of 30.08W, a fiber coupling efficiency of 97.63%, a corresponding luminance of 10.08MW/(cm2·Sr), and a total optical-optical transmission efficiency of the system of 95.95%.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Hongli Wu, Wenbin Qin, Yinhua Cao, Menghua Jiang, and Youqiang Liu "Design and simulation of high brightness green LD fiber coupling module", Proc. SPIE 12917, International Conference on Precision Instruments and Optical Engineering (PIOE 2023), 1291716 (1 November 2023); https://doi.org/10.1117/12.3011139

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KEYWORDS

Reflection

Prisms

Collimation

Fiber couplers

Beam divergence

Flat glass

Semiconductor lasers

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