Open AccessExperimental characterization of multiple quantum correlated beams in two-beam pumped cascaded four-wave mixing process
Author(s) -
Shengshuai Liu,
Yanbo Lou,
Jietai Jing
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.037999
Subject(s) - physics , four wave mixing , optics , mixing (physics) , beam (structure) , quantum , quantum metrology , photon , metrology , quantum imaging , quantum network , nonlinear optics , quantum information , quantum mechanics , laser
We experimentally explore the relationships between the number of multiple quantum correlated beams generated by two-beam pumped cascaded four-wave mixing (CFWM) process and the system parameters, such as the angle between the two pump beams, one-photon detuning and two-photon detuning. We find that all of three system parameters can influence the number of multiple quantum correlated beams. Under the optimal system parameters, we can observe the emission of up to 14 quantum correlated beams with the intensity-difference squeezing of -6.29 ± 0.20 dB (-7.93 ± 0.64 dB after accounting for losses) from such CFWM scheme. Our results may find potential applications in building multi-user quantum network and multi-parameter quantum metrology.