Integrated-optical add/drop multiplexer for dense wavelength multiplexing in lithium niobate
Publication date
2007
Document type
Conference paper
Author
Organisational unit
Technische Universität Clausthal
Scopus ID
ISBN
ISSN
Conference
Controlling light with light: photorefractive effects, photosensitivity, fiber gratings, photonic materials and more 2007
Part of the university bibliography
Nein
Abstract
In this contribution an add/drop multiplexer that uses a mode-selective coupler and a holographically recorded slanted Bragg grating in lithium niobate is demonstrated. A Bragg grating with a bandwidth of 0.1 nm allows for an add/drop efficiency of about 96 % with a cross-talk well above 22 dB applicable for wavelengths in the 1.5 mm window. Polarisation-independent operation can be achieved by application of a bias electric field to compensate for the small mismatch of propagation constants of TE and TM modes. The proposed scheme of an integrated-optical lithium niobate based device appears to be an interesting option due to its potential for fast electro-optical switching. © 2007 Optical Society of America.
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