Open AccessPolarization independent quasi-phase-matched sum frequency generation for single photon detection
Author(s) -
Xiao-shi Song,
Zi-yan Yu,
Qin Wang,
Fei Xu,
Yanqing Lu
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.000380
Subject(s) - lithium niobate , polarization (electrochemistry) , optics , sum frequency generation , electric field , photon , nonlinear optics , second harmonic generation , physics , materials science , laser , chemistry , quantum mechanics
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.