We experimentally observed a Hong-Ou-Mandle dip with 1.5-?m photon pairs generated in a periodically poled lithium niobate waveguide with integrated mode demultiplexer. The visibility of the dip was 78% without subtraction of any noise.
© 2008 Optical Society of America
(190.0190) Nonlinear optics : Nonlinear optics
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(230.0230) Optical devices : Optical devices
(230.7380) Optical devices : Waveguides, channeled
Q. Zhang, H. Takesue, C. Langrock, X. Xie, M. M. Fejer, and Y. Yamamoto, "Hong-Ou-Mandel Dip Using Photon Pairs from a PPLN Waveguide," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, OSA Technical Digest (CD) (Optical Society of America, 2008), paper QFE1.
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