Polarisation-insensitive high-isolation nonreciprocal device for optical circulator application

23 May 1991

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 27 (11) , 903-905
https://doi.org/10.1049/el:19910566

Abstract

A novel high-isolation structure for a polarisation-insensitive nonreciprocal device intended for optical circulator application is proposed. It consists of birefringent crystals and polarisation rotators. Experimental demonstration shows an isolation of over 42 dB and an insertion loss of under 1.5 dB.

Keywords

BIREFRINGENT CRYSTALS
INSERTION LOSS
POLARISATION-INSENSITIVE NONRECIPROCAL DEVICE
POLARISATION ROTATORS
1.5 DB
HIGH-ISOLATION STRUCTURE
OPTICAL COMMUNICATION
FARADAY ROTATORS
OPTICAL CIRCULATOR

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