Multi/Demultiplexer Using a 4-Port Optical Circulator and Interference Filters

Masafumi KOGA  Junichiro MINOWA  Takao MATSUMOTO  

IEICE TRANSACTIONS (1976-1990)   Vol.E72   No.10   pp.1086-1088
Publication Date: 1989/10/25
Online ISSN: 
Print ISSN: 0000-0000
Type of Manuscript: LETTER
Category: Electro-Optics

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A configuration of multi/demultiplexer using a 4-port optical circulator and interference filters is presented. Owing to the circulator, interference filters for the signal separation can be set normal to the optical signal propagating direction. Demultiplexing operation for 3 wavelength-multiplexed signals, of which wavelength spacings are 1.8 and 4.9 nm, is experimentally confirmed.