Paper
2 July 2007 In-fibre Mach-Zehnder configuration based on fibre multimode interference structure combined with a long period grating
Author Affiliations +
Proceedings Volume 6619, Third European Workshop on Optical Fibre Sensors; 66192H (2007) https://doi.org/10.1117/12.738610
Event: Third European Workshop on Optical Fibre Sensors, 2007, Napoli, Italy
Abstract
A novel Mach-Zehnder interferometer based on a fibre multimode interference structure combined with a long period fibre grating is proposed. The multimode interference is achieved through the use of a multimode fibre section spliced between two single-mode fibres, with a length adjusted to couple a fraction of light into the cladding modes. A LPG placed after the multimode fibre couples light back into the fibre core completing the Mach-Zehnder interferometer. This novel configuration was demonstrated as a bending sensor.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
O. Frazão, J. Viegas, P. Caldas, F. M. Araújo, L. A. Ferreira, J. L. Santos, and F. Farahi "In-fibre Mach-Zehnder configuration based on fibre multimode interference structure combined with a long period grating", Proc. SPIE 6619, Third European Workshop on Optical Fibre Sensors, 66192H (2 July 2007); https://doi.org/10.1117/12.738610
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KEYWORDS
Structured optical fibers

Cladding

Interferometers

Multimode fibers

Mach-Zehnder interferometers

Sensors

Single mode fibers

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