Blazed grating couplers on LiNbO 3 optical channel waveguides and their applications to integrated optical circuits

@inproceedings{Huang1986BlazedGC,
  title={Blazed grating couplers on LiNbO 3 optical channel waveguides and their applications to integrated optical circuits},
  author={Sun-Yuan Huang and Sing H. Lee},
  year={1986}
}
Blazed grating couplers on LiNbO 3 optical channel waveguides have been successfully designed, fabricated, and evaluated. A reactive ion beam etching technique was used to shape the groove profile of grating couplers. A large decay factor of 600 dB/cm along optical channel waveguide was obtained. The air coupling intensity ratio of 8:1 between positive and negative light propagation directions for ion beam angle of 55° indicated a strong blaze effect. Highly efficient optical coupling from… CONTINUE READING

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