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. 16, 2001
Filed:
Sep. 10, 1999
Applicant:
Inventors:
John Pease, Santa Clara, CA (US);
Robert A. Carney, Mountain View, CA (US);
Assignee:
New Focus, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S 3/00 ; H01S 3/10 ; G01S 1/42 ;
U.S. Cl.
CPC ...
H01S 3/00 ; H01S 3/10 ; G01S 1/42 ;
Abstract
The present invention provides an optical signal generator for use in calibrating and testing optical components. The optical signal generator utilizes a tunable laser in conjunction with a novel modulation circuit to output an analog/digital optical signal. The modulator circuit combines a low-frequency, closed loop power control with a separate digital modulator. The output beam of the tunable laser may be modulated over a wide range of frequencies, duty cycles and amplitudes. Circuitry is also provided for modulation of an analog signal onto the output.