Mode Coupling in Tilted Planar Waveguide Gratings
Applied Optics, Vol. 39, Issue 33, pp. 6144-6149 (2000)
http://dx.doi.org/10.1364/AO.39.006144
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Abstract
Three different grating tilting formulas for predicting the optimum grating tilt angle for strong mode coupling in planar waveguide gratings are derived. The optimum tilt angles obtained by the ray-optics approach deviate ~1° for transmissive mode coupling and ~1.5° for reflective mode coupling from those computed by the coupled-mode approach. The coupled-mode analysis and ray-optics analysis of the tilted planar waveguide gratings show that the transmissive planar waveguide gratings should be tilted more than 84° for strong TE0-to-TEμ mode coupling near 1550 nm.
© 2000 Optical Society of America
[Optical Society of America ]
OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(060.2340) Fiber optics and optical communications : Fiber optics components
(230.1950) Optical devices : Diffraction gratings
(230.7390) Optical devices : Waveguides, planar
Citation
Kyung Shik Lee, "Mode Coupling in Tilted Planar Waveguide Gratings," Appl. Opt. 39, 6144-6149 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-33-6144
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