Electro-optic Ti:PPLN waveguide as efficient optical wavelength filter and polarization mode converter

C. Y. Huang, C. H. Lin, Y. H. Chen, Y. C. Huang

Research output: Contribution to journalArticlepeer-review

50 Scopus citations

Abstract

We report the first experimental demonstration of electrically controlled Šolc-type optical wavelength filters and TE-TM mode converters based on Ti-diffused periodically poled lithium niobate (Ti:PPLN) waveguides. A maximum mode conversion efficiency or a peak spectral transmittance of ∼99% in the telecom C-L bands was obtained from a 9-mm long, 21.5-21.8-μm multiple-grating Ti:PPLN waveguide device with a switching voltage of as low as 22 V or 0.99 V×d(μm)/L(cm), where d is the electrode separation and L is the electrode length. The spectral range of this device can be tuned by temperature at a rate of ∼0.758 nm/°C.

Original languageEnglish
Pages (from-to)2548-2554
Number of pages7
JournalOptics Express
Volume15
Issue number5
DOIs
StatePublished - 5 Mar 2007

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