Few-photon all-optical modulation in a photonic band-gap fiber.

Phys Rev Lett 2011 Nov 3;107(19):193902. Epub 2011 Nov 3.

School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA.

We demonstrate 25% all-optical modulation with <20 photons, i.e., a few attojoules of energy, using nondegenerate two-photon absorption in rubidium atoms confined to a hollow-core photonic band-gap fiber. An attenuation of up to 3 dB is induced on an optical field with a switching energy density of less than one photon per (λ(2)/2π). We show that the temporal response of the system is determined by the 5-ns transit time of the atoms across the optical mode of the fiber, which results in a modulation bandwidth up to 50 MHz.

Download full-text PDF

Source
http://dx.doi.org/10.1103/PhysRevLett.107.193902DOI Listing
November 2011
2 Reads

Publication Analysis

Top Keywords

all-optical modulation
8
fiber demonstrate
4
demonstrate 25%
4
25% all-optical
4
band-gap fiber
4
photonic band-gap
4
modulation photonic
4
few-photon all-optical
4
modulation
2
all-optical
1
25%
1
demonstrate
1
few-photon
1
fiber
1
band-gap
1
photonic
1

References

(Supplied by CrossRef)

D. Bouwmeester et al.
2000

Similar Publications