Tunable cavity-enhanced photon pairs source in Hermite-Gaussian mode

Abstract

The spatial modes of light have grasped great research interests because of its great potentials in optical communications, optical manipulation and trapping, optical metrology and quantum information processing. Here we report on generating of photon pairs in Hermite-Gaussian (HG) mode in a type-I optical parametric oscillator (OPO) operated far below threshold. The bandwidths of the photon pairs are 11.4 MHz and 20.8MHz for two different HG modes respectively, which is capable to be stored in cold Rubidium atomic ensembles. From correlation measurements, non-classical properties of HG modes in different directions are verified by tuning the cavity. Our study provides an effective way to generate photon pairs with narrow bandwidth in high order spatial modes for high dimensional quantum communication.

draft, comments welcommed

References in corpus (6)

• Beating the channel capacity limit for linear photonic superdense coding
• Optimal quantum cloning of orbital angular momentum photon qubits via Hong-Ou-Mandel coalescence
• Time-bin modulated polarization-entangled biphotons from cavity-enhanced down-conversion
• Experimental Entanglement and Nonlocality of a Two-Photon Six-Qubit Cluster State
• Atom-Resonant Heralded Single Photons by Interaction-Free Measurement
• Atomic Faraday filter with equivalent noise bandwidth less than 1 GHz