Abstract
A new optical rotation sensor is described. It is a ring passive phase conjugator in which the ring may consist of a multimode fiber. A nonreciprocal phase shift in the]] passive" like fiber ring activates a grating movement and subsequent frequency detuning of the beams in a photorefractive four-wave mixer. This device has the advantages of natural reciprocal behavior of phase conjugate beams (essential for rotation sensing) and has several adjustable controlling parameters. It reveals a new class of interferometry in which changes in the ring's optical phases, the beam's intensities and losses, and the mixing crystal's efficiency and electric field modulate a frequency detuning of the oscillating beams.
| Original language | English |
|---|---|
| Pages (from-to) | 1-3 |
| Number of pages | 3 |
| Journal | Applied Physics Letters |
| Volume | 47 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1985 |
| Externally published | Yes |