Fiber Optic Temperature Sensor Using Two Modes by Holographic Filter

Manabu YOSHIKAWA  Kazuo ASAKAWA  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E78-C   No.7   pp.885-886
Publication Date: 1995/07/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Opto-Electronics
Keyword: 
single-fiber sensor,  two-mode interference,  holographic filter,  multimode fiber,  

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Summary: 
A fiber optic temperature sensor using a conventional graded index multimode optical fiber is proposed. The multimode fiber is excited by two selected modes using a computer-generated holographic filter. A clear periodic signal created by interference between two modes is observed in the experiment.