title: Generation and compression of chirped biphotons.
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.
authors.affiliation: Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305, USA. sensarn@stanford.edu
authors.forename: S
authors.initials: S
authors.lastname: Sensarn
authors.forename: G Y
authors.initials: GY
authors.lastname: Yin
authors.forename: S E
authors.initials: SE
authors.lastname: Harris