Abstract
We experimentally generate 9 sets of orbital angular momentum (OAM) multiplexed four-beam quadrature squeezing by utilizing four-wave mixing processes in a rubidium vapor. The degree of four-beam quadrature squeezing decreases with the increase of topological charge |l|. In addition, we investigate the four-beam quadrature squeezing with OAM superposition modes. Our results provide an efficient way to generate OAM multiplexed multi-beam quadrature squeezing and may find potential applications in multi-parameter estimation.
| Original language | English |
|---|---|
| Pages (from-to) | 1954-1957 |
| Number of pages | 4 |
| Journal | Fundamental Research |
| Volume | 5 |
| Issue number | 5 |
| DOIs | |
| State | Published - Sep 2025 |
Keywords
- Balanced homodyne detection
- Four-wave mixing
- Multi-beam quadrature squeezing
- Multiplexing
- Orbital angular momentum