Title

Fiber Inline Core-cladding-mode Interferometer Fabricated by CO₂ Laser Irradiation

Abstract

Fiber inline core-cladding-mode interferometers (CCMI) fabricated by CO2 laser irradiations were demonstrated. CCMI sensors operate based on the interference between the core mode and the cladding modes. Based on the way the interferometer is configured, CCMI sensors can be categorized into two groups, namely the Mach-Zehnder interferometer (MZI) type and the Michelson interferometer (MI) type. The MZI sensor works in transmission mode, i.e., the transmitted interference signal is detected. The MI sensor works in reflection mode, where the light passes the interferometer twice and the reflected interference signal is detected. We conducted a temperature test and a refractive index test to demonstrate their sensing capability.

Department(s)

Electrical and Computer Engineering

Keywords and Phrases

Cladding Mode; Core Mode; Fiber Inline Core-Cladding-Mode Interferometers

Library of Congress Subject Headings

Carbon dioxide

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2009 SPIE, All rights reserved.


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