Thermally fixed reflection gratings for infrared light in LiNbO_3:Ti:Fe channel waveguides
- 1 September 1998
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 23 (17) , 1405-1407
- https://doi.org/10.1364/ol.23.001405
Abstract
We present a narrow-bandwidth interference filter in an optical monomode channel waveguide operating in the infrared wavelength region around . The filter consists of a thermally fixed refractive-index Bragg grating recorded with visible green light by use of a holographic technique. In a first approach we measure a reflectivity for the infrared light of 60% and a linewidth (FWHM) of 0.11 nm.
Keywords
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