Physics – Quantum Physics
Scientific paper
2004-07-15
Physics
Quantum Physics
15 pages, 4 figures
Scientific paper
10.1103/PhysRevA.70.053814
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.
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