Real Axis SLM for Scintillation Control

Period of Performance: 03/19/1998 - 06/19/2000

$676K

Phase 2 SBIR

Recipient Firm

Boulder Nonlinear Systems, Inc.
LAFAYETTE, CO 80026
Principal Investigator

Research Topics

Abstract

It is possible to correct fine amplitude fluctuations in atmospheric imaging systems (i.e., scintillation effects) using adaptive optics which have good resolution (several thousand actuators) and high temporal bandwidth (several hundred Hertz). Of course, this is an expensive proposition using the more conventional systems such as deformable mirrors which cost several hundred dollars per actuator. Therefore, we propose using a liquid-crystal-based wave-front corrector which costs pennies per actuator. For such a device to be effective, it must be phase flat, highly efficient with respect to the unpolarized input, capable of broadband modulation and capable of high frame rates. The Phase II effort described in this proposal addresses these issues.