Near real time optical phase conjugation
US8451450B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 13, 2010 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Nov 29, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2001/0072
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical system and associated method enable near real time optical phase conjugation. In the method, a translucent medium is illuminated by a sample illumination beam. Light scattered by the medium is directed to an electronic image sensor while a reference beam is also directed to the electronic image sensor. The scattered light and the reference beam form an interference pattern at the electronic image sensor. A digital representation of the interference pattern is recorded using the electronic image sensor, and the characteristics of a conjugate of the sample beam are computed from the numerical representation. A conjugate beam having the computed characteristics is generated using a configurable optical element and directed back to the translucent medium. The generation of the conjugate beam may be accomplished using a spatial light modulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.