• Chinese Journal of Lasers
  • Vol. 25, Issue 1, 46 (1998)
[in Chinese], [in Chinese], and [in Chinese]
Author Affiliations
  • [in Chinese]
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    [in Chinese], [in Chinese], [in Chinese]. Diode Laser Coupling to a Cone endface fiber[J]. Chinese Journal of Lasers, 1998, 25(1): 46 Copy Citation Text show less

    Abstract

    A coupling technique between a cone endface fiber and LD with the advantage of high efficiency and low reflectance is presented. The coupling efficiency nearly 90% and the reflectance loss approximately 60 dB are calculated using mode coupling theory. Experimentally, the best coupling efficiency measured is 73.9% and the reflectivity is less than -50 dB. In addition, a new equipment for fabricating the conical microlens is designed, which has the advantages of low cost, simple manipulation, and high finished-product-rate.