Abstract
We describe an experiment demonstrating the radarlike technique of “chirp and compress.” Chirped biphotons are generated using a quasi-phase-matched nonlinear crystal where the phase-matched frequency varies linearly with position. Sum frequency generation is used to measure the amplitude of the biphoton wave function. As compared to a nonchirped crystal, compression and an increase in summing efficiency of a factor of 5 is observed.
- Received 7 April 2010
DOI:https://doi.org/10.1103/PhysRevLett.104.253602
©2010 American Physical Society
Synopsis
Chirp and compress
Published 9 July 2010
The power enhancement from compressing an entangled photon pair opens applications in quantum information processing based on optics.
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