Polarization rotation in asymmetric periodic loaded rib waveguides

A new mechanism for polarization rotation in rib waveguides is suggested and demonstrated in InP waveguides. The polarization rotation is achieved by loading a rib waveguide in a periodic asymmetric way. Complete TE↔TM conversion, with only 2–3 dB excess loss, is obtained in a 3.7-mm-long InP loaded...

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Bibliographic Details
Published in:Applied physics letters 1991-09, Vol.59 (11), p.1278-1280
Main Authors: SHANI, Y, ALFERNESS, R, KOCH, T, KOREN, U, ORON, M, MILLER, B. I, YOUNG, M. G
Format: Article
Language:English
Subjects:
Applied sciences
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
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Summary:A new mechanism for polarization rotation in rib waveguides is suggested and demonstrated in InP waveguides. The polarization rotation is achieved by loading a rib waveguide in a periodic asymmetric way. Complete TE↔TM conversion, with only 2–3 dB excess loss, is obtained in a 3.7-mm-long InP loaded waveguide. Strong polarization rotation (80%), in shorter devices (0.3 mm long), is also demonstrated.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.105474