All-fiber Mach-Zehnder curvature sensor based on multimode interference combined with a long-period grating
- 15 October 2007
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 32 (21), 3074-3076
- https://doi.org/10.1364/ol.32.003074
Abstract
A novel Mach–Zehnder interferometer based on a fiber multimode interference structure combined with a long-period fiber grating (LPG) is proposed. The multimode interference is achieved through the use of a MMF section spliced between two single-mode fibers, with a length adjusted to couple a fraction of light into the cladding modes. A LPG placed after the MMF couples light back into the fiber core, completing the Mach–Zehnder interferometer. This novel configuration was demonstrated as a bending sensor.Keywords
This publication has 9 references indexed in Scilit:
- Optical inclinometer based on a single long-period fiber grating combined with a fused taperOptics Letters, 2006
- Wavelength-selective all-fiber filter based on a single long-period fiber grating and a misaligned splicing pointOptics Communications, 2005
- Arc-Induced Long-Period GratingsFiber and Integrated Optics, 2005
- Long-period grating Michelson refractometric sensorMeasurement Science and Technology, 2004
- Refractive Index, Density and Polarizability of Silica Glass with Various Fictive TemperaturesJapanese Journal of Applied Physics, 2004
- Long-period fiber grating bending sensors in laminated composite structuresPublished by SPIE-Intl Soc Optical Eng ,1998
- Wavelength-division multiplexing isolation fiber filter and light source using cascaded long-period fiber gratings.Optics Letters, 1998
- Long-period fiber gratings as band-rejection filtersJournal of Lightwave Technology, 1996
- Coherence multiplexing of fiber-optic interferometric sensorsJournal of Lightwave Technology, 1985