Quasi-phase-matched Faraday rotation in semiconductor waveguides with a magnetooptic cladding for monolithically integrated optical isolators

Hutchings, D.C. , Holmes, B.M., Zhang, C., Dulal, P., Block, A. D., Sung, S.-Y., Seaton, N. C. A. and Stadler, B. J. H. (2013) Quasi-phase-matched Faraday rotation in semiconductor waveguides with a magnetooptic cladding for monolithically integrated optical isolators. IEEE Photonics Journal, 5(6), p. 6602512. (doi: 10.1109/JPHOT.2013.2292339)

Abstract

Strategies are developed for obtaining nonreciprocal polarization mode conversion, also known as Faraday rotation, in waveguides in a format consistent with silicon-on-insulator or III–V semiconductor photonic integrated circuits. Fabrication techniques are developed using liftoff lithography and sputtering to obtain garnet segments as upper claddings, which have an evanescent wave interaction with the guided light. A mode solver approach is used to determine the modal Stokes parameters for such structures, and design considerations indicate that quasi-phase-matched Faraday rotation for optical isolator applications could be obtained with devices on the millimeter length scale.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Hutchings, Professor David and Holmes, Dr Barry
• Authors: Hutchings, D.C., Holmes, B.M., Zhang, C., Dulal, P., Block, A. D., Sung, S.-Y., Seaton, N. C. A., and Stadler, B. J. H.
• Subjects: Q Science > QC Physics; T Technology > TK Electrical engineering. Electronics Nuclear engineering
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: IEEE Photonics Journal
• Publisher: IEEE
• ISSN: 1943-0655
• Copyright Holders: Copyright © 2013 IEEE
• First Published: First published in IEEE Photonics Journal 5(6):6602512
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher

Project Code	Award No	Project Name	Principal Investigator	Funder's Name	Funder Ref	Lead Dept
59468	1	Materials World Network: Complex oxides for heterogeneous optoelectronic integration	David Hutchings	Engineering & Physical Sciences Research Council (EPSRC)	EP/J018708/1	ENG - ENGINEERING ELECTRONICS & NANO ENG