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:
Mar. 18, 2008
Filed:
Jun. 06, 2005
Maurice J. Halmos, Encino, CA (US);
Matthew J. Klotz, Pasadena, CA (US);
Jean-paul Bulot, Redondo Beach, CA (US);
Maurice J. Halmos, Encino, CA (US);
Matthew J. Klotz, Pasadena, CA (US);
Jean-Paul Bulot, Redondo Beach, CA (US);
Raytheon Company, Waltham, MA (US);
Abstract
A ladar system with phase correction. The novel ladar system includes optics for receiving a first signal that is a reflected version of a transmitted laser signal, an optical delay line for providing a second signal that is a delayed version of the transmitted laser signal, and a mechanism for mixing the first signal with the second signal. The second signal is delayed by a time Tthat reduces a relative time difference between the first and second signals such that phase errors caused by laser transmitter instabilities and nonlinear modulation are less than a predetermined level.