Affiliation:
1. Taiyuan University of Science and Technology
2. Zhejiang University
3. Shanxi University
4. Taiyuan Institute of Technology
Abstract
Nondegenerate four-wave mixing (FWM) in diamond-type atomic systems has important applications in a wide range of fields, including quantum entanglement generation, frequency conversion, and optical information processing. Although the efficient self-seeded nondegenerate FWM with amplified spontaneous emission (ASE) has been realized extensively, the seeded nondegenerate FWM without ASE is inefficient in reported experiments so far. Here we present the experimental realization of the seeded nondegenerate FWM in cesium atoms with a significantly improved efficiency. Specifically, with two pump lasers at 852 and 921 nm and a seed laser at 895 nm, a continuous-wave laser at 876 nm is efficiently generated via FWM in a cesium vapor cell with a power up to 1.2 mW, three orders of magnitude larger than what has been achieved in previous experiments. The improvement of the efficiency benefits from the exact satisfaction of the phase-matching condition realized by an elaborately designed setup. Our results may find applications in the generation of squeezing and entanglement of light via nondegenerate FWM.
Funder
National Natural Science Foundation of China
National Key Research and Development Program of China
Shanxi Provincial Central Government Guides Local Science and Technology Development Fund Project
Natural Science Foundation of Shanxi Province
China Postdoctoral Science Foundation
Taiyuan University of Science and Technology Scientific Research Initial Funding
Subject
Atomic and Molecular Physics, and Optics
Cited by
5 articles.
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