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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.

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Metadaten
Author:Manfred Lohmeyer, Mikhail Shamonin (Chamonine)ORCiDGND, Peter Hertel
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