Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Efficient generation of correlated photon pairs in a microstructure fiber



Jingyun Fan, Alan L. Migdall, L Wang


We report efficient generation of correlated photon pairs through degenerate four-wave mixing in a microstructure fiber. With 735.7 nm pump pulses producing correlated signal (688.5 nm) and idler (789.8 nm) photons in a 1.8 m microstructure fiber, we detect photon pairs at a rate of 37.6 kHz with a coincidence/accidental contrast of 10:1 with Δlambda=0.7nm. This is the highest rate to our knowledge reported to date in a fiber-based photon source. The light source is highly nonclassical as defined by the Zou-Wang-Mandel inequality, which is violated by 1100 times the uncertainty.
Optics Letters


coincidence, four-wave mixing, microstructure fiber, nonclassicality, parametric amplification


Fan, J. , Migdall, A. and Wang, L. (2005), Efficient generation of correlated photon pairs in a microstructure fiber, Optics Letters, [online], (Accessed June 13, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created December 15, 2005, Updated February 19, 2017