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Optical Engineering

Fabrication and characterization of proton-exchanged optical waveguides in Z-LiNbO3 using orthophosphoric acid
Author(s): A. L. Dawar; J. C. Joshi; V. K. Sharma; Avinashi Kapoor; Kailash Narayan Tripathi
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Paper Abstract

A systematic study of the fabrication and characterization of planar optical waveguides in Z-LiNbO3, fabricated by the proton exchange technique using orthophosphoric acid is reported. The guides are fabricated by immersing lithium niobate substrates in orthophosphoric acid for different durations. The results are compared with those for guides fabricated using benzoic acid under similar conditions. The data are analyzed to calculate the value of the diffusion coefficients. The surface index and the depth produced using the orthophosphoric acid proton exchange process is marginally higher.

Paper Details

Date Published: 1 January 1993
PDF: 6 pages
Opt. Eng. 32(1) doi: 10.1117/12.60082
Published in: Optical Engineering Volume 32, Issue 1
Show Author Affiliations
A. L. Dawar, Defense Science Ctr. (India)
J. C. Joshi, Defence Science Centre, Metcalfe House (India)
V. K. Sharma, Univ. of Delhi (India)
Avinashi Kapoor, Univ. of Delhi (India)
Kailash Narayan Tripathi, Univ. of Delhi (India)

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