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A novel high-power semiconductor laser diode with large cavity for high efficiency coupling with the optical fibers

Yu Hai-Ying Cui Bi-Feng Chen Yi-Xin Zou De-Shu Liu Ying Shen Gunag-Di

A novel high-power semiconductor laser diode with large cavity for high efficiency coupling with the optical fibers

Yu Hai-Ying, Cui Bi-Feng, Chen Yi-Xin, Zou De-Shu, Liu Ying, Shen Gunag-Di
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Publishing process
  • Received Date:  06 July 2006
  • Accepted Date:  18 December 2006
  • Published Online:  20 July 2007

A novel high-power semiconductor laser diode with large cavity for high efficiency coupling with the optical fibers

  • 1. (1)北京工业大学北京光电子技术实验室,北京 100022; (2)山东建筑大学,济南 250101

Abstract: A novel high-power semiconductor laser diode (LD) with very large cavity using multi-active -layer cascaded by tunnel-junction was developed. The window size of the LD was enlarged extremely and less than 20 degree of the lasing beam divergency was obtained,which benefits the coupling between the LD and the optical fiber. Many types of lensed fibers were used to test with the LD and the coupling efficiencies were increased over 30% compared with the conventional LD.

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