Title :
Compact quartzless optical quasi-circulator
Author_Institution :
NTT Transmission Syst. Labs., Kanagawa
fDate :
8/18/1994 12:00:00 AM
Abstract :
A compact quartzless structure is proposed for polarisation-insensitive optical quasi-circulators. Quartz is eliminated by using two different materials, YIG and GBIG in a Faraday rotator. The signs of their Faraday rotation coefficients are reversed. The length of the prototype is only half that of the conventional design for equally high isolation values
Keywords :
Faraday effect; bismuth compounds; boron compounds; gadolinium compounds; garnets; magneto-optical devices; optical waveguide components; yttrium compounds; Faraday rotation coefficients; Faraday rotator; GBIG; YFe5O12-GdBBiFe5O12; YIG; YIG-GdBBiIG; isolation values; optical quasi-circulator; polarisation-insensitive devices;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19940963
