Coherence properties of high-gain twin beams generated in pump-depletion regime

Abstract

Twin-beam coherence properties are analyzed both in the spatial and spectral domains at high-gain regime including pump depletion. The increase of the size of intensity auto- and cross-correlation areas at increasing pump power is replaced by a decrease in the pump depletion regime. This effect is interpreted as a progressive loss in the mode selection occurring at high-gain amplification. The experimental determination of the number of spatio-spectral modes from $g^{(2)}$-function measurements confirms this explanation.

7 pages, 7 figures

References in corpus (9)

• Experimental realization of sub-shot-noise quantum imaging
• Probing multimode squeezing with correlation functions
• Nonlinear interactions with an ultrahigh flux of broadband entangled photons
• Sub-shot-noise photon-number correlation in mesoscopic twin-beam of light
• Measurement of sub-shot-noise spatial correlations without subtraction of background
• Realization of the purely spatial Einstein-Podolsky-Rosen paradox in full-field images of spontaneous parametric down conversion
• Quantum to classical transition via fuzzy measurements on high gain spontaneous parametric down-conversion
• Spatial properties of twin-beam correlations at low- to high-intensity transition
• Space-time coupling in the up-conversion of broadband down-converted light

Cited by in corpus (4)

• Pump depletion in parametric down-conversion with low pump energies
• Multivariate Discrimination in Quantum Target Detection
• Spectral and statistical properties of high-gain parametric down-conversion
• Waves in intensity coherence of evolving intense twin beams