Fiber Bragg Gratings in the Visible Spectral Range With Ultraviolet Femtosecond Laser Inscription

Author

Becker, Matthias ; Elsmann, Tino ; Schwuchow, Anka ; Rothhardt, Manfred ; Dochow, Sebastian ; Bartelt, Hartmut

Author_Institution

Opt. Fibers & Fiber Applic., Leibniz Inst. of Photonic Technol., Jena, Germany

Volume

26

Issue

16

fYear

2014

fDate

Aug.15, 15 2014

Firstpage

1653

Lastpage

1656

Abstract

In this letter, we investigate the inscription of fiber Bragg gratings in the visible spectral range using deep ultraviolet femtosecond laser exposure and two-beam interferometry. The properties of first-order reflection gratings and third-order gratings for use in the visible wavelength range are compared. Stronger gratings have been achieved for first-order reflecting Bragg gratings compared with third-order gratings. We demonstrate a fiber Bragg grating with a grating period of 226 nm and a filtering efficiency of more than 30 dB.

Keywords

Bragg gratings; high-speed optical techniques; laser materials processing; light interferometry; light reflection; optical fibre filters; visible spectra; fiber Bragg grating inscription; filtering efficiency; first-order reflecting Bragg gratings; third-order reflecting Bragg gratings; two-beam interferometry; ultraviolet femtosecond laser inscription; visible spectral range; wavelength 226 nm; Fiber gratings; Gratings; Indexes; Optical interferometry; Optimized production technology; Ultrafast optics; Fiber Bragg gratings; femtosecond laser; optical fiber filters; photosensitivity; two-beam interferometry;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2014.2327662

Filename

6834822