Mark A. Ealey, MEMBER SPIE Litton/Itek Optical Systems 10 Maguire Road Lexington, Massachusetts 021 73-31 99 Technically, the sensing of phase errors and the use of this feedback signal by a closed loop servo control system that nullifies those errors is the distinguishing factor between adaptive and active optic systems. For the purposes of this special section, the term "active optics" has more to do with the phase conjugate of Gaskill's Law, which is a Fourier integral that describes the ratio of abstracts received to manuscripts accepted for publication.

Date Published: 1 November 1990
PDF: 1 pages
Opt. Eng. 29(11) doi: 10.1117/12.150757
Published in: Optical Engineering Volume 29, Issue 11