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IEEE Lasers and Electro-Optics Society Annual Meeting (LEOS)

Highly efficient sum-frequency generation (SFG) in reverse-proton-exchanged (RPE) waveguides in LiNbO/sub 3/ as a means of single-photon detection at communication wavelengths

Carsten Langrock, Rostislav V. Roussev, Jonathan R. Kurz, M. M. Fejer

Published Sep 20, 2004• 1 citation
Publisher

Abstract

In this paper a detection scheme based on SFG in reverse-proton-exchange PPLN waveguides is presented.
DOI
10.1109/leos.2003.1253031

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Polarization independent sum frequency generation (SFG) is proposed in an electro-optic (EO) tunable periodically poled Lithium Niobate (PPLN). The PPLN consists of four sections. External electric field could be selectively applied to them to induce polarization rotation between the ordinary and extraordinary waves. If the domain structure is well designed, the signal wave with an arbitrary polarization state could realize efficient frequency up-conversion as long as a z-polarized pump wave is selected. The applications in single photon detection and optical communications are discussed.