TRANSMISSION LOSSES AND MODE-SELECTION CHARACTERISTICS OF A CURVED HOLLOW DIELECTRIC WAVE-GUIDE WITH A ROUGH-SURFACE

被引:16
作者
DANILOV, OB
ZINTCHENKO, MI
RUBINOV, YA
SOSNOV, EN
机构
[1] S. L Vavilov Optical Institute, Leningrad
关键词
D O I
10.1364/JOSAB.7.001785
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The effects of surface roughness and axial bends of a hollow dielectric waveguide on transmission of 10.6-jLm CO2 waveguide laser radiation are measured. An analytical expression for various waveguide modes has been obtained in the beam approximation for calculating the value of the transmission of a real waveguide. This expression takes into account both Fresnel losses and radiation scattering due to the roughness. It isshown thatthe efficiency of selecting transverse modes from the waveguide laser is diminished with an increase in the bending radius and the waveguide diameter and also with a decrease in the radiation wavelength. © 1990 Optical Society of America.
引用
收藏
页码:1785 / 1790
页数:6
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