Efficient, damage resistant LiNbO3 acousto-optic waveguide deflector

Miyawaki, Mamoru; Ogura, Shigetaro
November 1985
Applied Physics Letters;11/1/1985, Vol. 47 Issue 9, p918
Academic Journal
An efficient, damage resistant, guided wave deflector in LiNbO3 has been fabricated by a combination of titanium diffusion, proton exchange in benzoic acid with lithium benzoate, and post-annealing processes. The stability of the waveguide has been confirmed using x-ray rocking curves. The insertion loss of interdigital transducer and the diffraction efficiency were found to depend on the wave number of OH absorption produced by proton exchange.


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