Effect of wall tilt on the optical properties of integrated directional couplers
Optics Letters, Vol. 27, Issue 8, pp. 601-603 (2002)
http://dx.doi.org/10.1364/OL.27.000601
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Abstract
The effect of wall tilt on the performance of directional couplers has been studied. There is a significant reduction in the coupling length as the tilt decreases when nonvertical walls, which are inherent in nearly all clean-room waveguide fabrication processes, are considered. Comparison of 90° and 45° coupling lengths reveals a difference of nearly a factor of 2 between them. Experimental data obtained with antiresonant reflecting optical waveguide directional couplers confirm that tilt effects should be considered in any device with large core thickness.
© 2002 Optical Society of America
[Optical Society of America ]
OCIS Codes
(130.0130) Integrated optics : Integrated optics
(230.0230) Optical devices : Optical devices
(230.3120) Optical devices : Integrated optics devices
(230.7370) Optical devices : Waveguides
Citation
A. Llobera, I. Salinas, I. Garcés, A. Merlos, and C. Domínguez, "Effect of wall tilt on the optical properties of integrated directional couplers," Opt. Lett. 27, 601-603 (2002)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-27-8-601
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