An efficient all-optical switch using a lambda atom in a cavity QED system

Details An efficient all-optical switch using a lambda atom in a cavity QED system An efficient all-optical switch using a lambda atom in a cavity QED system

2011-06-12

arxiv.org/abs/1106.2350v1

Phys. Rev. A 84, 043821 (2011)

Physics

Quantum Physics

8 pages, 9 figures

Scientific paper

10.1103/PhysRevA.84.043821

We propose an all-optical switch constructed from a two-mode optical resonator containing a strongly coupled, three-state system. The coupling allows a weak laser drive to incoherently control the transmission of a much stronger signal laser into (and through) the resonator. We demonstrate that in this simple setup the presence of a control drive with one tenth the power of the signal drive can induce near complete reflection of the signal, while its absence allows for near complete transmission. The switch can also be operated as a set-reset relay with two control inputs that efficiently drive the switch into either the reflecting or the transmitting state

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