Generation of photon pairs with nonzero orbital angular momentum in a ring fiber
2014
We present a method for the generation of correlated photon pairs in desired orbital-angular-momentum states using a non-linear silica ring fiber and spontaneous parametric down-conversion. Photon-pair emission under quasi-phase-matching conditions with quantum conversion efficiency $ 6\times 10^{-11} $ is found in a 1-m long fiber with a thermally induced $\chi^{(2)}$ nonlinearity in a ring-shaped core.
Keywords:
- Orbital angular momentum of light
- Angular momentum operator
- Orbital angular momentum multiplexing
- Azimuthal quantum number
- Total angular momentum quantum number
- Angular momentum coupling
- Classical mechanics
- Angular momentum of light
- Orbital motion
- Physics
- Quantum mechanics
- Quantum electrodynamics
- Atomic physics
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