Analysis of grating-coupled radiation in GaAs:GaAlAs lasers and waveguides - II: Blazing effects
- 1 August 1976
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Quantum Electronics
- Vol. 12 (8), 494-499
- https://doi.org/10.1109/jqe.1976.1069201
Abstract
Grating-coupled radiation in lasers and waveguides is analyzed for trapezoidal-shaped grating teeth which includes all triangular shapes. A perturbation technique is used which involves calculating the modes in a geometry with an inhomogeneous refractive index profile in the grating region. Curves are presented for radiated power from traveling waves as a function of blazing angle, grating tooth height, refractive index, and grating period. It is shown that the ratio of power radiated into the outer media depends greatly on tooth shape and size. By judiciously selecting parameters this ratio can exceed 50:1.Keywords
This publication has 4 references indexed in Scilit:
- Analysis of grating-coupled radiation in GaAs:GaAlAs lasers and waveguides - IIEEE Journal of Quantum Electronics, 1976
- GaAs-AlxGa1-xAs injection lasers with distributed Bragg reflectorsApplied Physics Letters, 1975
- Index-profile determination of heterostructure GaAs planar waveguides from mode-angle measurements at 106 μm wavelengthJournal of the Optical Society of America, 1975
- Directional blazing of waves guided by asymmetrical dielectric gratingsOptics Communications, 1974