Birefringence Of Diffused LiNbO3 Z-Propagating Waveguides Depending On Titanium Concentration

Dietmar Eberhard

doi:10.1117/12.949434

5 April 1989 Birefringence Of Diffused LiNbO₃ Z-Propagating Waveguides Depending On Titanium Concentration

Dietmar Eberhard

Proceedings Volume 1014, Micro-Optics; (1989) https://doi.org/10.1117/12.949434
Event: 1988 International Congress on Optical Science and Engineering, 1988, Hamburg, Germany

Abstract

Investigations of LiNbO3 waveguides using the non-standard Z-propagation are presented. Due to the isotropic refractive index of the bulk material and a small residual TE/TM modal birefringence, this orientation seems to be well suited for passive, polarization-insensitive devices with increased power handling capability. The measured wavelength response curves of BOA-type wavelength multiplexers, fabricated with Z-propagating waveguides on X-cut LiNb01, however, indicate the presence of increased waveguide birefringence. This results in an opposite shift of the sinusoidal TE/TM transmission curves of nearly 180Ã‚Â°, which can not be verified by theoretical calculations (device simulation by the beam propagation method BPM ). The determination of the refractive index profile by m-line spectroscopy leads to gaussian profiles with polarization dependent 1/e-widths and maximum index increases An. BPM-simulations based on these profiles show results, which correspond well to the measurements.

Citation Download Citation

Dietmar Eberhard "Birefringence Of Diffused LiNbO₃ Z-Propagating Waveguides Depending On Titanium Concentration", Proc. SPIE 1014, Micro-Optics, (5 April 1989); https://doi.org/10.1117/12.949434

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available