Prism-waveguide coupling efficiency for waveguides with an arbitrary refractive-index profile
- 1 October 1978
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 33 (7) , 619-620
- https://doi.org/10.1063/1.90482
Abstract
Using the WKB approximation, we generalize Ulrich’s solution to the optimum coupling efficiency of a prism‐waveguide coupler, so that it can be applied to a waveguide with an arbitrary refractive‐index profile. As an example, we give an analytic solution to a waveguide having an exponential refractive‐index profile.Keywords
This publication has 10 references indexed in Scilit:
- High-efficiency prism coupler for optical waveguidesApplied Physics Letters, 1978
- Design and fabrication of a blazed replica grating coupler for optical waveguidesOptics Letters, 1977
- Tapered gap prism couplers for high index materialsApplied Optics, 1977
- WKB approximation for optical guide modes in a medium with exponentially varying indexJournal of Applied Physics, 1975
- Optical waveguide modes in single-crystalline LiNbO3–LiTaO3 solid-solution filmsApplied Physics Letters, 1974
- TE modes of graded-index slab waveguidesIEEE Journal of Quantum Electronics, 1973
- Optimum Excitation of Optical Surface WavesJournal of the Optical Society of America, 1971
- Theory of the Prism–Film Coupler by Plane-Wave AnalysisJournal of the Optical Society of America, 1970
- Theory of Prism–Film Coupler and Thin-Film Light GuidesJournal of the Optical Society of America, 1970
- Evanescent field coupling into a thin-film waveguideIEEE Journal of Quantum Electronics, 1970