Title :
Compact optical circulator for near-infrared region
Author :
Shibukawa, Atsushi ; Kobayashi, Morio
Author_Institution :
NTT Ibaraki Electrical Communication Laboratory, Tokai, Japan
Abstract :
A compact Faraday-rotation 4-port circulator was developed for the near-infrared region. This circulator consists of an yttrium-iron-garnet Faraday rotator, biased by two permanent magnets, and two Glan-Taylor prisms. Insertion losses of 2.7¿3.2 dB and isolation ratios of 13¿28 dB among non-reciprocal ports were obtained at 1.15¿m wavelength.
Keywords :
Faraday effect; magneto-optical effects; optical waveguide components; Faraday effect; Glen Taylor prisms; YIG; compact optical circulator; insertion losses; isolation ratios; near infrared region; nonreciprocal ports; permanent magnets;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19780551
