Title

Phase-Shifted Volume Bragg Gratings In Photo-Thermo-Refractive Glass

Keywords

Fabry-Perot; Lidar; Narrow band filter; Volume Bragg grating

Abstract

Narrow-band filters based on phase shifted Bragg gratings have been widely investigated in fiber configuration. However, up to now, no experimental demonstration was performed using volume Bragg gratings in free space configuration. In this paper both theoretical and experimental study of this new type of filters is presented. The phase matching conditions that allow obtaining a resonant filter are analyzed. Narrow bandwidth transmission filters based on the coherent combination of two non slanted reflecting Bragg gratings in photo-thermo-refractive glass are studied. A filter with 25 pm bandwidth and 90%+ transmission at 1064 nm is demonstrated. The effect of the phase matching between the two volume Bragg gratings is presented and perfect accordance of experimental and theoretical data are shown. Based on these results, we show that the phase-shifted reflecting volume Bragg gratings recorded photo-thermo-refractive glass pave a way to the fabrication of large aperture extremely narrow band filters with high transmission at resonance and high rejection.

Publication Date

3-31-2008

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

6890

Number of Pages

-

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.763081

Socpus ID

41149136074 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/41149136074

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