TITLE

Single-step fabrication of strongly confining quasiphase-matching waveguides in LiTaO3

AUTHOR(S)
Zhao, Cangsang; Engelmann, Reinhart
PUB. DATE
December 1996
SOURCE
Applied Physics Letters;12/9/1996, Vol. 69 Issue 24, p3623
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Strongly confining waveguides were fabricated in LiTaO3 at high temperature (540–610 °C) by short-time (≤6 s) rapid thermal annealing. Single-step photolithography is able to accomplish the simultaneous fabrication of a waveguide and a periodically domain-inverted structure for second-order quasiphase-matching blue-light generation. A measured normalized conversion efficiency of 7%/W cm2 for a physical length of 0.55 mm in a planar quasiphase-matching waveguide showed that this single-step process can lead to high conversion efficiency in channel waveguides. © 1996 American Institute of Physics.
ACCESSION #
6289520

 

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