Title: Thermal tuning of a fixed Bragg grating for IR light fabricated in a LiNbO₃:Ti channel waveguide
Authors: Hukriede, Joerg
Kip, Detlef  
Krätzig, E.
Language: en
Subject (DDC): DDC::500 Naturwissenschaften und Mathematik
Issue Date: 2000
Publisher: Springer
Document Type: Article
Journal / Series / Working Paper (HSU): Applied Physics B Lasers and optics 
Volume: 70
Page Start: 73
Page End: 75
Publisher Place: Berlin, Heidelberg
We investigate a thermally tunable integrated narrow-bandwidth interference filter for light in the infrared wavelength region around γ = 1550 nm fabricated in a channel waveguide in lithium niobate. The filter is based on a holographically recorded and thermally fixed refractive-index Bragg grating. The device is connected to optical single-mode fibers and works polarization-independent. We measure a peak reflectivity of 95% and a linewidth (FWHM) of 0.09 nm. By temperature-controlling the peak wavelength of the filter is tuned. For the linear thermal expansion coefficient of lithium niobate along the c axis the value α33 = (4.5 ± 0.5) × 10-6 K-1 is obtained. Permanent illumination of the filter with incoherent light allows us to adjust the peak reflectivity.
Organization Units (connected with the publication): Universität Osnabrück
URL: https://api.elsevier.com/content/abstract/scopus_id/0012087618
ISSN: 09462171
DOI: 10.1007/s003400050011
Appears in Collections:Publications of the HSU Researchers (before HSU)

Show full item record

CORE Recommender


checked on May 20, 2022

Google ScholarTM




Items in openHSU are protected by copyright, with all rights reserved, unless otherwise indicated.