We demonstrate photon-pair generation in a reverse proton exchanged waveguide fabricated on a periodically poled magnesium doped stoichiometric lithium tantalate substrate. Detected pairs are generated via a cascaded second order nonlinear process where a pump laser at wavelength of 1.55 m is first doubled in frequency by second harmonic generation and subsequently downconverted around the same spectral region. Pairs are detected at a rate of 42/s with a coincidence to accidental ratio of 0.7. This cascaded pair generation process is similar to four-wave-mixing where two pump photons annihilate and create a correlated photon pair. © 2011 American Institute of Physics.
Correlated photon-pair generation in a periodically poled MgO doped stoichiometric lithium tantalate reverse proton exchanged waveguide / Lobino, M.; Marshall, G. D.; Xiong, C.; Clark, A. S.; Bonneau, D.; Natarajan, C. M.; Tanner, M. G.; Hadfield, R. H.; Dorenbos, S. N.; Zijlstra, T.; Zwiller, V.; Marangoni, M.; Ramponi, R.; Thompson, M. G.; Eggleton, B. J.; O'Brien, J. L.. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - 99:8(2011), p. 081110. [10.1063/1.3628328]
Correlated photon-pair generation in a periodically poled MgO doped stoichiometric lithium tantalate reverse proton exchanged waveguide
Lobino M.;
2011-01-01
Abstract
We demonstrate photon-pair generation in a reverse proton exchanged waveguide fabricated on a periodically poled magnesium doped stoichiometric lithium tantalate substrate. Detected pairs are generated via a cascaded second order nonlinear process where a pump laser at wavelength of 1.55 m is first doubled in frequency by second harmonic generation and subsequently downconverted around the same spectral region. Pairs are detected at a rate of 42/s with a coincidence to accidental ratio of 0.7. This cascaded pair generation process is similar to four-wave-mixing where two pump photons annihilate and create a correlated photon pair. © 2011 American Institute of Physics.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione
