High Brightness Fiber-Coupling Technique for High Power Diode Laser Bars

Ghasemi, Seyed Hamed; Hantehzadeh, Mohammad Reza; Vatani, Vahid; Karimi, M.J.; Hejaz, Kamran; Kazemi, Sh.; Lafouti, Majid; Sabbaghzadeh, J.

doi:10.1109/sopo.2011.5780674

Cited by 1 publication

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Increasing power by only increasing the number of beams in the same direction seems impossible due to limitations in space distance and fiber size. When the number of beams in one direction reaches its limit, an additional laser light path can be added through the use of polarization combinations, and then beam-combining techniques can be used to multiply the output power of the fiber [ 20 ]. A schematic diagram of a polarizing beam splitter is shown in Figure 4 .…”

Section: Theory Analysis and Optical Path Designmentioning

confidence: 99%

Power Enhancement and Spot Homogenization Design for Arrayed Semiconductor Lasers

Zhong,

Xiong,

et al. 2024

Micromachines

View full text Add to dashboard Cite

Improving the spot brightness and uniformity of arrangement of the array laser is conducive to ensuring the beam quality of the fiber laser. Based on the light tracing principle, the optical model performance of two common fiber lasers was first analyzed. Then, a novel rotationally polarized optical model with high power and spot uniformity was designed and optimized on the basis of the aforementioned analysis. The results of the evaluation metrics of the multi-indicator optical model show that the spot uniformity of our proposed model improved by 24.03%, the power improved by 0.55%, and the maximum light distance was shortened from 120 mm to 82.58 mm. Further, the results of the coupling tolerance analysis of the optical elements show that the total coupling efficiency was 89.04%. The coupling power and tolerance relationships did not produce degradation compared with the traditional model. Extensive comparative results show that the designed rotationally polarized optical path model can effectively improve the optical coupling efficiency and spot uniformity of arrayed semiconductor lasers.

show abstract

Section: Theory Analysis and Optical Path Designmentioning

confidence: 99%