Femtosecond laser inscription of Bragg and complex gratings in coated and encapsulated silica and low-loss polymer optical fibers
SourceProceedings of SPIE - The International Society for Optical Engineering
24th International Conference on Optical Fibre Sensors, OFS 2015
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The development of wavelength filters, such as Bragg and superstructure gratings in glass and polymer optical fibers, using a femtosecond laser is reported. By using a femtosecond laser operating in the green, which offers greater inscription efficiency, we demonstrate the reliable inscription of Bragg and superstructure gratings in coated silica and low-loss CYTOP polymer optical fibers. We employ line by line and point by point inscription methods, allowing for multiple and overlapping gratings in the fiber core. Moreover, we demonstrate a novel fibre Bragg grating inscription technique to modify and add versatility to an existing, encapsulated optical fiber pressure sensor. © 2015 SPIE.
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Othonos, Andreas S.; Lee, X. (1995)A spectrally narrow linewidth KrF excimer laser has been developed for the application of writing Bragg gratings in optical fibers. Two air spaced etalons 80 and 6 cm-1 have been incorporated within the laser cavity resulting ...
Alavie, A. Tino; Karr, S. E.; Measures, R. M.; Othonos, Andreas S. (1993)A technique for multiplexing Bragg gratings in a fiber laser arrangement is described. This technique has successfully been used to multiplex two and three Bragg gratings with very little crosstalk. The Bragg grating laser ...
Alavie, A. Tino; Maaskant, Robert; Stubbe, Raoul; Othonos, Andreas S.; Ohn, Myo M.; Sahlgren, Bengt; Measures, Raymond M. (Society of Photo-Optical Instrumentation Engineers, 1995)This work examines the effects of different manufacturing techniques of fiber optic intracore Bragg gratings on their sensing and system parameters. Specifically, we have looked at tolerance with respect to center wavelength, ...