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A novel two-mode squeezed light based on double-pump phase-matching
- Source :
- Chin. Phys. B 29, 074207 (2020)
- Publication Year :
- 2019
-
Abstract
- A novel two-mode non-degenerate squeezed light is generated based on a four-wave mixing (4WM) process driven by two pump fields crossing at a small angle. By exchanging the roles of the pump beams and the probe and conjugate beams, we have demonstrated the frequency-degenerate two-mode squeezed light with separated spatial patterns. Different from a 4WM process driven by one pump field, the refractive index of the corresponding probe field $n_{p}$ can be converted to a value that is greater than $1$ or less than $1$ by an angle adjustment. In the new region with $n_{p}<1$, the bandwidth of the gain is relatively large due to the slow change in the refractive index with the two-photon detuning. As the bandwidth is important for the practical application of a quantum memory, the wide-bandwidth intensity-squeezed light fields provide new prospects for quantum memories.
- Subjects :
- Quantum Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- Chin. Phys. B 29, 074207 (2020)
- Publication Type :
- Report
- Accession number :
- edsarx.1902.10293
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1088/1674-1056/ab8abd