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International Journal of Optics
Volume 2010, Article ID 626583, 6 pages
Research Article

Šolc-Type Wavelength Filters Based on TE TM Mode Conversion Utilizing Periodically Poled Ti-Diffused Lithium Niobate Channel Waveguides

Department of Electronic and Electrical Engineering, Hongik University, 121-791 Seoul, South Korea

Received 2 November 2009; Accepted 22 January 2010

Academic Editor: Sang-Kook Han

Copyright © 2010 Hongsik Jung. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We have demonstrated the Šolc-type wavelength filters in a 52 mm long periodically poled Ti-diffused lithium niobate channel waveguide which has a domain period of 16.6  𝜇 m. At room temperature, the center wavelength and the full-width at half maximum of the filter were about 1272.49 nm and 0.23 nm, respectively. The nearest side-lobe is about 7 dB. New structure of optical add/drop multiplexer (OADM) utilizing Šolc-type TE TM mode converters was proposed for the first time.