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Analysis of two-dimensional waveguides with misaligned or curved gratings

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2 Author(s)
Streifer, William ; Xerox Palo Alto Research Center, Palo Alto, CA, USA ; Hardy, Amos

Periodic corrugated waveguides with wave confinement in both transverse dimensions are analyzed. The description includes the cases of grating misalignment (tilt) and curvature; for a tilt angle θ, the resonant wavelengths vary as(cos theta)^{-1}. Coefficients for intramode coupling (identical contradirectional modes) and hybrid (intermode) coupling are calculated as functions of θ. Numerical results for a GaAlAs waveguide, of the type employed in distributed Bragg reflector (DBR) lasers, are included.

Published in:

Quantum Electronics, IEEE Journal of  (Volume:14 ,  Issue: 12 )