Development of LC Optics for Free-space Laser Communications
Author: Klaus, W.
Source: AEÜ International Journal of Electronics and Communications, Volume 56, Number 4, June 2002 , pp. 243-253(11)
Publisher: Urban & Fischer
Abstract:Free-space laser communications is a very flexible means to connect end users to a high-bandwidth data network via ground-based terminals on top of buildings or to bring a variety of data services to remote locations via satellite terminals in space. External influences on the optical link due to atmospheric turbulence and vibrations in the transmitter's environment require some method of beam control to stabilize the optical link and maintain a high transmission rate. Liquid crystal (LC) optics can provide a compact and low-power solution to beam control in laser communications systems. Besides reviewing recent Japanese activities in the field of free-space laser communications, this paper summarizes four years of research in designing and experimentally evaluating LC beam deflectors and adaptive lenses that feature simple driving circuitry and have been manufactured specifically with regard to laser communications.
Document Type: Original Article
Affiliations: Optical Space Communications Group, Communications Research Laboratory, 4-2-1 Nukui-kita, Koganei, Tokyo 184-8795, Japan. E-mail: firstname.lastname@example.org
Publication date: June 2002