The Boeing Company

Rockwell International Corporation

Gregory A Needham

Kenneth Charles Widen

Vytas Thomas Gylys

Andrea Koumvakalis

David M Swain

Louis R Fontana

Harry H Wang

Dale A Holmes

A device includes a first sensor configured to generate a first output signal corresponding to an energy of a portion of a forward beam transmitted by a mirror of a laser resonator system. The device further includes a second sensor configured to generate a second output signal corresponding to an energy of a portion of a return beam transmitted by the mirror. A ratio of the energy of the portion of the forward beam and the energy of the portion of the return beam corresponds to a measurement of a feedback ratio of the laser resonator system.

Energy ratio sensor for laser resonator system

A configuration for an unstable, negative branch imaging resonator (NBIR) is disclosed in which coupling mirrors are added so that the Primary and Secondary mirrors are not in direct optical communication with the imaging systems which minimizes the occurrence of the NBIR experiencing magnification runaway and/or odd order aberrations by using coupling mirrors to provide indirect optical communication between the imaging systems and the Primary and Secondary end mirrors.

Unstable disk resonator

The present invention relates to an apparatus and method for steering a light beam which utilizes the relative positioning of adjacently disposed semi-spherical windows to provide the desired steering.

Two-axis beam steering apparatus

Growing community of inventors

Simi Valley, CA, United States of America

Gregory A Needham