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:
Nov. 05, 1991
Filed:
Oct. 29, 1990
Dan Botez, Redondo Beach, CA (US);
Luke J Mawst, Torrance, CA (US);
Gary L Peterson, Long Beach, CA (US);
TRW Inc., Redondo Beach, CA (US);
Abstract
A semiconductor laser array of antiguides having a large number of antiguide elements to provide relatively high optical power output with a high degree of coherence and array mode discrimination. The antiguide elements are grouped into array cells that are separated by interarray regions having a width and refractive index selected to produce a resonance condition in the 0.degree.-phase-shift array mode. Each array cell is also designed to operate in the resonant condition, and losses in the interarray regions discriminate against modes other than the 0.degree.-phase-shift mode. The entire group of cells operates as a high-power, coherent ensemble, without the degradation of mode discrimination and beam quality usually associated with large numbers of waveguide elements.