Title :
Bright source of polarization-entangled photons using periodically poled potassium titanyl phosphate (KTP)
Author :
Pelton, M. ; Marsden, P. ; Ljunggren, D. ; Tengner, M. ; Karlsson, A. ; Fragemann, A. ; Canalias, C. ; Laurell, F.
Author_Institution :
Dept. of Microelectron. & Inf. Technol., R. Inst. of Technol., Kista, Sweden
Abstract :
We used two perpendicular crystals of periodically-poled potassium titanyl phosphate (KTP) to efficiently generate frequency-nondegenerate, polarization-entangled photons in a single spatial mode. The source is compact, inexpensive, and suitable for long-distance fiber-based quantum communication.
Keywords :
multiphoton processes; optical frequency conversion; optical materials; potassium compounds; quantum entanglement; quantum optics; titanium compounds; KTP; KTiOPO4; fiber-based quantum communication; frequency-nondegenerate photons; periodically poled potassium titanyl phosphate; polarization-entangled photons; spatial mode; spontaneous parametric downconversion; Fiber lasers; Fiber nonlinear optics; Frequency; Irrigation; Laser excitation; Optical fiber polarization; Optical pumping; Photonic crystal fibers; Photonic crystals; Pump lasers;
Conference_Titel :
Quantum Electronics and Laser Science, 2003. QELS. Postconference Digest
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-749-0
DOI :
10.1109/QELS.2003.238462
