Analysis of power-dependent switching between radiatively coupled planar waveguides
- Effective coupling between two remote optical waveguides without branching sections can be achieved in a three-guide system with multimode central waveguide. We investigate the nonlinear power switching of c.w. laser radiation by such radiatively coupled waveguides. It is shown that effective all-optical switches with spatially well separated input/output channels can be realized although the influence of multimode interference on the switching characteristics becomes more pronounced for increasing thickness of the central guide. Different coupling regimes are specified, and the changes in switching characteristics during the transformation from one regime to another is studied. Numerical calculations for the critical power are compared with an approximate analytical expression. It is also shown that, at a moderate input power, a small number of modes determines the switching behavior.
Author: | Mikhail Shamonin (Chamonine)ORCiDGND, M. Lohmeyer, P. Hertel |
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URL / DOI: | http://1558-2213 |
DOI: | https://doi.org/10.1109/50.588671 |
Parent Title (English): | Journal of Lightwave Technology |
Publisher: | IEEE |
Place of publication: | New York |
Document Type: | Article |
Language: | English |
Year of first Publication: | 1997 |
Release Date: | 2023/11/11 |
Tag: | Electromagnetic coupling; Nonlinear optics; Optical coupling; Optical refraction; Optical surface waves; Optical switches; Optical variables control; Optical waveguides; Planar waveguide; Refractive index |
Volume: | 15 |
Issue: | 6 |
First Page: | 983 |
Last Page: | 989 |
Institutes: | Fakultät Elektro- und Informationstechnik |
Fakultät Elektro- und Informationstechnik / Labor Intelligente Materialien und Strukturen | |
Begutachtungsstatus: | peer-reviewed |
Publication: | Externe Publikationen |
research focus: | Produktion und Systeme |
Licence (German): | Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG |