Reducing radiation loss of tilts in dielectric optical waveguides

1981 ◽  
Vol 17 (11) ◽  
pp. 369 ◽  
Author(s):  
E.-G. Neumann
1984 ◽  
Vol 51 (4) ◽  
pp. 236-238 ◽  
Author(s):  
Osamu Hanaizumi ◽  
Mitsunobu Miyagi ◽  
Shojiro Kawakami

Author(s):  
W. E. Lee

An optical waveguide consists of a several-micron wide channel with a slightly different index of refraction than the host substrate; light can be trapped in the channel by total internal reflection.Optical waveguides can be formed from single-crystal LiNbO3 using the proton exhange technique. In this technique, polished specimens are masked with polycrystal1ine chromium in such a way as to leave 3-13 μm wide channels. These are held in benzoic acid at 249°C for 5 minutes allowing protons to exchange for lithium ions within the channels causing an increase in the refractive index of the channel and creating the waveguide. Unfortunately, optical measurements often reveal a loss in waveguiding ability up to several weeks after exchange.


1985 ◽  
Vol 132 (6) ◽  
pp. 314 ◽  
Author(s):  
J.M. Arnold ◽  
A. Belghoraf ◽  
A. Dendane

2009 ◽  
Vol 8 (4) ◽  
pp. 843-847 ◽  
Author(s):  
Maria Valentina Dinicu(Popa) ◽  
Ion Visa ◽  
Dorin Valentin Diaconescu ◽  
Bogdan Gabriel Burduhos

1975 ◽  
Vol 11 (22) ◽  
pp. 534
Author(s):  
Shojiro Kawakami ◽  
Shigeo Nishida
Keyword(s):  

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