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Proceedings Paper

An in-line in-fibre ring cavity multi-parameter sensor with a tuneable refractive index response
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Paper Abstract

An in-line fibre ring cavity is fabricated by writing two blazed gratings next to each other to form a Fabry Perot cavity. A visibility of fringes as good as 0.032 in the reflection spectrum and 0.76 for transmission is obtained for the interference between the forward propagating guided mode and the reverse propagating ghost mode of the blazed grating. The ability to measure the external refractive index and the variability of this response with cavity length is demonstrated.

Paper Details

Date Published: 26 November 2007
PDF: 6 pages
Proc. SPIE 6830, Advanced Sensor Systems and Applications III, 683004 (26 November 2007); doi: 10.1117/12.753772
Show Author Affiliations
Paul Childs, Univ. of New South Wales (Australia)
Ian Leung, Univ. of New South Wales (Australia)
Allan C. L. Wong, Univ. of New South Wales (Australia)
Gang-Ding Peng, Univ. of New South Wales (Australia)

Published in SPIE Proceedings Vol. 6830:
Advanced Sensor Systems and Applications III
Yun-Jiang Rao; Yanbiao Liao; Gang-Ding Peng, Editor(s)

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