Infrared and Laser Engineering, Volume. 33, Issue 2, 204(2004)
Research on gradient-index strip waveguide coupler
The gradient-index strip waveguide coupler is introduced in this paper. Its principle and configuration were analyzed carefully and design equations were set up. Because a SOA's mode-dimension and emission-angle could be converted with a selected direction by a gradient-index strip waveguide coupler, a high-efficient fiber-chip coupling application was realized,and the minimum coupling loss was less than 3 dB.The graded index strip waveguide coupler could be used to replace a cylindrical lens sometimes due to their equivalent optical properties.
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[in Chinese], [in Chinese], [in Chinese], [in Chinese]. Research on gradient-index strip waveguide coupler[J]. Infrared and Laser Engineering, 2004, 33(2): 204