Integrated optical circulator based on radiatively coupled magneto-optic waveguides
- In a three-guide coupler with multimode central waveguide, more than two modes of the entire structure participate in the coupling between the outer waveguides. Using a three-mode approximation we found simple conditions for complete power transfer between the outer waveguides: the device length has to match certain multiples of the con- ventionally defined coupling length. The specific form of the relevant modes allows us to design a magneto-optic isolator or circulator with significantly reduced device length (as compared to the conventional nonreciprocal coupler). The performance of the proposed devices is simulated by propagating-mode calculations. Estimates for admissible fabrication tolerances for the layer thicknesses are presented.
Author: | Manfred Lohmeyer, Mikhail Shamonin (Chamonine)ORCiDGND, Peter Hertel |
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DOI: | https://doi.org/10.1117/1.601255 |
Parent Title (English): | Optical Engineering |
Publisher: | SPIE |
Document Type: | Article |
Language: | English |
Year of first Publication: | 1997 |
Release Date: | 2023/12/06 |
Tag: | integrated optics; magneto-optic circulator; magneto-optic isolator; radiatively coupled waveguides; three-guide coupler |
Volume: | 36 |
Issue: | 3 |
First Page: | 889 |
Last Page: | 895 |
Institutes: | Fakultät Elektro- und Informationstechnik |
Fakultät Elektro- und Informationstechnik / Labor Intelligente Materialien und Strukturen | |
Begutachtungsstatus: | peer-reviewed |
Publication: | Externe Publikationen |
OpenAccess Publikationsweg: | Gold Open Access- Erstveröffentlichung in einem/als Open-Access-Medium |
research focus: | Produktion und Systeme |
Licence (German): | Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG |