-70 dB optical carrier suppression by two-beam coupling in photorefractive media |
| |
| Authors: | DZ Anderson V Damiao D Popovic Z Popovic S Romisch A Sullivan |
| |
| Institution: | (1) Department of Physics and JILA, University of Colorado, Boulder CO, 80309-0440, USA, US;(2) Deptartment of Electrical and Computer Engineering, University of Colorado, Boulder CO, 80309-0425, USA, US |
| |
| Abstract: | Suppression of an optical carrier from an RF modulated laser beam of wavelength 532 nm is performed using two-beam coupling
in photorefractive barium titanate. A theoretical analysis reveals that perfect suppression can be achieved at a specific
modulation strength, which depends on the gain and intensity ratio between the two beams. The experiments achieve a maximum
of -72.9±2.4 dB carrier suppression at the theoretically ideal modulation strength, and -61.0±2.4 dB for small modulation
strengths.
Received: 29 November 2000 / Revised version: 2 February 2001 / Published online: 27 April 2001 |
| |
| Keywords: | PACS: 42 6 5-k 42 65 Hw 42 40 Kw |
| 本文献已被 SpringerLink 等数据库收录！ |
|
