Adaptive interferometers with no external field using reflection gratings in CdTe:Ge at 1550 nm |
| |
Authors: | K Shcherbin MB Klein |
| |
Institution: | a Institute of Physics, National Academy of Sciences, Prospekt Nauki 46, 03028 Kiev, Ukraine b Intelligent Optical Systems, 2520 West 237th Street, Torrance, CA 90505-5217, USA |
| |
Abstract: | We demonstrate experimentally the operation of an adaptive two-wave mixing interferometer with no field applied to a photorefractive crystal in which the quadrature condition is introduced by an external π/2 phase step. To achieve high signal to noise ratio the counter-propagating geometry for grating recording is used with a CdTe:Ge crystal, ensuring effective recording of reflection holograms. It is demonstrated that the interferometer with a photorefractive semiconductor crystal provides good sensitivity without the adverse effects that are normally associated with an applied field. |
| |
Keywords: | 42 65 Hw 42 68 Wt 42 70 Nq 72 80 Ey |
本文献已被 ScienceDirect 等数据库收录! |
|