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Biphoton interference with a multimode pump

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Burlakov, A., Chekhova, M., Karabutova, O., & Kulik, S. (2001). Biphoton interference with a multimode pump. PHYSICAL REVIEW A, 63(5): 053801. doi:10.1103/PhysRevA.63.053801.


Cite as: http://hdl.handle.net/21.11116/0000-0001-DF94-D
Abstract
We study the interference of biphotons generated via spontaneous parametric down-conversion from a pump with several longitudinal modes. It is shown that biphotons can interfere if the time difference between their birth moments is a multiple, to an accuracy of the pump coherence time, of T=2L/c, where L is the pump cavity length. This effect, although observed with a cw pump, is similar to a recently reported interference of biphotons generated from time-separated pump pulses.