Open AccessPhase-controlled switching by interference between incoherent fields in a double-Λ system
Author(s) -
Hyon Chol Kang,
Bongjune Kim,
Young Ho Park,
Cheol Oh,
In Won Lee
Publication year - 2011
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.19.004113
Subject(s) - rubidium , optics , interference (communication) , transmission (telecommunications) , phase (matter) , physics , laser , materials science , optoelectronics , telecommunications , channel (broadcasting) , potassium , quantum mechanics , computer science , metallurgy
We showed experimentally interference could be occurred between incoherent lights in a double-Λ lambda transition implemented with rubidium atomic vapor. Switching of probe transmission was controlled by the phases of two` independent probe lasers with low light intensity. More than 70% of the probe transmission could be switched by ultra-weak incoherent field. We suggested optically cryptic information could be delivered by the phase-controlled switching with incoherent fields in a double-Λ system.