Title :
Broadband photoinduced Fresnel reflectors
Author :
Greene, Jonathan A. ; Murphy, Kent A. ; Plante, Angela J. ; Bhatia, Vikram ; Sen, Mallika
Author_Institution :
F&S Technol. Inc., Christiansburg, VA, USA
fDate :
31 Oct-3 Nov 1994
Abstract :
Large photoinduced refractive index changes in hydrogen-loaded GeO 2-doped optical fibers have recently been achieved by exposure to UV light. Much of the work in this area has focused on sensor applications of Bragg reflectors, which result from periodic refractive index changes induced by exposing the fiber to the interference pattern of two crossed plane waves. In the paper, the authors describe the applications of easily-fabricated, broadband Fresnel reflector sites for OTDR-based distributed sensing as well as for the fabrication of localized intrinsic Fabry-Perot interferometric sensors
Keywords :
refractive index; Bragg reflector; GeO2-doped optical fibers; OTDR-based distributed sensing; SiO2-GeO2; UV light; broadband photoinduced Fresnel reflectors; crossed plane waves; fabrication; interference pattern; localized intrinsic Fabry-Perot interferometric sensors; optical time domain reflectometer; periodic refractive index change; photoinduced refractive index changes; sensor applications; Fiber lasers; Hydrogen; Optical fiber couplers; Optical fiber sensors; Optical fiber testing; Optical fibers; Optical refraction; Refractive index; Strain measurement; Telecommunication standards;
Conference_Titel :
Lasers and Electro-Optics Society Annual Meeting, 1994. LEOS '94 Conference Proceedings. IEEE
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-1470-0
DOI :
10.1109/LEOS.1994.586377
