The authors have investigated a proton-exchange technique for LiNbO//3 waveguide fabrication using pyrophosphoric acid and found that high-index slab waveguides ( DELTA n//e equals 0. 145) with a step profile were obtained by the surface-coating technique, and low-loss stripe waveguides (0. 7 dB/cm) were achieved using this technique with a Ta mask. This fabrication technique could be used in nonlinear-optic and other integrated-optic devices.
|Title of host publication||Unknown Host Publication Title|
|Publisher||Optical Soc of America|
|Number of pages||1|
|Publication status||Published - 1987 Jan 1|
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