Abstract
A homodyne detector measures a field-amplitude component of the incoming signal. If the incoming signal is in an n-photon eigenstate the homodyne detector's output probability distribution exhibits n fringes. Here the degree to which the visibility of these fringes is degraded by a homodyne detector with less than unit quantum efficiency is evaluated. An experiment employing conjugate pairs of photons generated via a parametric down conversion or four-wave mixing is proposed by which these fringes could be observed.
| Original language | English |
|---|---|
| Pages (from-to) | 1955-1958 |
| Number of pages | 4 |
| Journal | Physical Review A |
| Volume | 36 |
| Issue number | 4 |
| DOIs | |
| State | Published - 1987 |
| Externally published | Yes |