CORE-RESONANCE CAPILLARY-FIBER WHISPERING-GALLERY-MODE LASER

被引:57
|
作者
KNIGHT, JC
DRIVER, HST
HUTCHEON, RJ
ROBERTSON, GN
机构
[1] Department of Physics, University of Cape Town, Rondebosch, 7700, Private Bag
关键词
D O I
10.1364/OL.17.001280
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We describe the observation of laser emission at wavelengths corresponding to whispering-gallery modes from a highly refractive dye-doped solvent flowing in a normally illuminated silica capillary fiber. The cylindrical whispering-gallery-mode laser described here differs from the well-known spherical droplet laser in that it has an internal refractive index discontinuity. Boundary-value computations are presented that reveal that the feedback responsible for the observed lasing modes is associated with total internal reflection at the liquid-silica interface. No laser peaks are observed when the refractive index of the solvent is less than that of the silica.
引用
收藏
页码:1280 / 1282
页数:3
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