Abstract
The displacement measurement of a light beam below the standard quantum limit was demonstrated. The study was carried out using the continuous wave superposition of spatial modes. The multimode squeezed light was obtained by mixing a vacuum squeezed beam and a coherent beam that was spatially orthogonal. Results showed that position of such a light beam could be measured using a split detector with an increased precision compared to a classical beam.
| Original language | English |
|---|---|
| Article number | 203601 |
| Pages (from-to) | 2036011-2036014 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 88 |
| Issue number | 20 |
| DOIs | |
| Publication status | Published - 20 May 2002 |