Poling-inhibited ridge waveguides in lithium niobate crystals

Ultraviolet laser irradiation of a lithium niobate +z polar surface enables the production of ridge waveguides. Ultraviolet laser induced inhibition of poling is used to define an inverted domain pattern which transforms into a ridge structure by differential etching in hydrofluoric acid. The laser...

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Bibliographic Details
Main Authors: Sones, C.L (Author), Ganguly, P. (Author), Ying, C.Y.J (Author), Soergel, E. (Author), Eason, R.W (Author), Mailis, S. (Author)
Format: Article
Language:English
Published: 2010-10-11.
Subjects:
Online Access:Get fulltext
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042 |a dc 
100 1 0 |a Sones, C.L.  |e author 
700 1 0 |a Ganguly, P.  |e author 
700 1 0 |a Ying, C.Y.J.  |e author 
700 1 0 |a Soergel, E.  |e author 
700 1 0 |a Eason, R.W.  |e author 
700 1 0 |a Mailis, S.  |e author 
245 0 0 |a Poling-inhibited ridge waveguides in lithium niobate crystals 
260 |c 2010-10-11. 
856 |z Get fulltext  |u https://eprints.soton.ac.uk/177031/1/4884.pdf 
520 |a Ultraviolet laser irradiation of a lithium niobate +z polar surface enables the production of ridge waveguides. Ultraviolet laser induced inhibition of poling is used to define an inverted domain pattern which transforms into a ridge structure by differential etching in hydrofluoric acid. The laser irradiation step also induces a refractive index change that provides the vertical confinement within the ridge structure. Furthermore, it was observed that poling-inhibition results in a significant enhancement of the refractive index contrast between the bulk crystal and the ultraviolet irradiated tracks. 
540 |a accepted_manuscript 
655 7 |a Article