Efficient fiber coupling of down-conversion photon pairs

Abstract

We develop and apply an effective analytic theory of a non-collinear, broadband type-I parametric down-conversion to study a coupling efficiency of the generated photon pairs into single mode optical fibers. We derive conditions necessary for highly efficient coupling for single and double type-I crystal producing polarization entangled states of light. We compare the obtained approximate analytic expressions with the exact numerical solutions and discuss the results for a case of BBO crystals.

15 pages, 4 figures

References in corpus (2)

• High efficiency entangled photon pair collection in type II parametric fluorescence
• Experimental demonstration of entanglement-enhanced classical communication over a quantum channel with correlated noise

Cited by in corpus (14)

• Conditional preparation of single photons using parametric downconversion: A recipe for purity
• Optimal Co-linear Gaussian Beams for Spontaneous Parametric Down-Conversion
• Spectral density matrix of a single photon measured
• Joint spectrum of photon pairs measured by coincidence Fourier spectroscopy
• Modelling and optimization of photon pair sources based on spontaneous parametric down-conversion
• Localised projective measurement of a relativistic quantum field in non-inertial frames
• Statistics of multiphoton events in spontaneous parametric down-conversion
• Down-conversion source of positively spectrally correlated and decorrelated photon pairs at telecom wavelength
• Type I parametric down conversion of highly focused Gaussian beams in finite length crystals
• Density matrix of a single photon produced in parametric down conversion derived
• Intensity of parametric fluorescence pumped by ultrashort pulses
• Experimental generation of complex noisy photonic entanglement
• Optimal focusing conditions for bright spontaneous parametric down-conversion sources
• Noise reduction in 3D noncollinear parametric amplifier