• Opto-Electronic Engineering
  • Vol. 48, Issue 5, 200372 (2021)
Duan Chengrui1、2, Zhao Pengfei2, Wang Xubao1、*, and Lin Xuechun2
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    DOI: 10.12086/oee.2021.200372 Cite this Article
    Duan Chengrui, Zhao Pengfei, Wang Xubao, Lin Xuechun. Fiber coupling technology of high brightness blue laser diode[J]. Opto-Electronic Engineering, 2021, 48(5): 200372 Copy Citation Text show less

    Abstract

    With the development and application of blue semiconductor lasers, it has become a research hotspot to obtain high brightness blue light source by beam combining technology. In order to obtain high brightness blue light output, 48 single tube semiconductor lasers with wavelength of 450 nm and output power of 3.5 W are focused and coupled into 105 μm/0.22 NA fiber by fast slow axis collimation and spatial beam combination. The blue light with power of 144.7 W and brightness of 11 MW/(cm2?str) is obtained. The coupling efficiency is 93.78%, and the optical to optical conversion efficiency of the whole system is 86.13%.