The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 17, 2006
Filed:
May. 07, 2004
Joshua E. Rothenberg, Los Angeles, CA (US);
William H. Long, Jr., Torrance, CA (US);
Gregory D. Goodno, Playa del Rey, CA (US);
Paul T. Epp, Manhattan Beach, CA (US);
Joshua E. Rothenberg, Los Angeles, CA (US);
William H. Long, Jr., Torrance, CA (US);
Gregory D. Goodno, Playa del Rey, CA (US);
Paul T. Epp, Manhattan Beach, CA (US);
Northrop Grumman Corporation, Los Angeles, CA (US);
Abstract
A solid state zig-zag slab laser amplifier in which depolarization occurring at total internal reflection from opposed lateral faces of the amplifier slab is controlled by selecting a complex evanescent coating that provides a selected phase retardance that results in minimization of depolarization. Without use of the complex coating, small changes in incidence angles can result in phase retardance changes large enough to increase depolarization significantly, especially when the amplifier is operated at higher powers. Appropriate selection of the complex evanescent coating allows a desired phase retardance angle to be maintained relatively constant over a small range of angles of incidence, at a given wavelength, and therefore permits minimization of depolarization and birefringence effects.