Side-coupled Optical Fiber Devices for Sensing Applications
Abstract
We demonstrate experimentally the light coupling between two types of optical fiber devices, including the long period fiber gratings (LPFGs) and fiber tapers. Optical power transfer is achieved through evanescent field coupling between the cladding modes. the output spectra from the LPFG couplers exhibit band-pass/band-rejection pattern, which could be used as add/drop filters. the output spectra from the fiber taper couplers show an interference pattern similar to a Mach-Zehnder interferometer. by fixing the fiber devices in a capillary glass tube, we demonstrated a miniaturized coupler for displacement sensing. © 2010 Copyright SPIE - the International Society for Optical Engineering.
Recommended Citation
Y. Zhang et al., "Side-coupled Optical Fiber Devices for Sensing Applications," Proceedings of SPIE - The International Society for Optical Engineering, vol. 7682, article no. 76820K, Society of Photo-optical Instrumentation Engineers, Jun 2010.
The definitive version is available at https://doi.org/10.1117/12.850658
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
CO laser irradiation 2; Evanescent field coupling; fiber taper; long period fiber grating
International Standard Book Number (ISBN)
978-081948146-7
International Standard Serial Number (ISSN)
0277-786X
Document Type
Article - Conference proceedings
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2024 Society of Photo-optical Instrumentation Engineers, All rights reserved.
Publication Date
25 Jun 2010
