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:
Apr. 30, 1991
Filed:
Apr. 17, 1990
Bruce D Campbell, Portola Valley, CA (US);
Wavelength Lasers, Inc., Sunnyvale, CA (US);
Abstract
An error compensation system is described which provides a linear laser signal. The error compensation system includes a first high power linear laser which is used to drive a signal onto an optical fiber. The signal on the optical fiber is tapped to provide a signal representative of the signal on the fiber. This tapped signal is compared with the original modulated signal to produce a control signal indicative of any error signal on the fiber. This control signal is inverted and used to drive a lower power laser which supplies an optical output indicative of the inverted error. By properly combining the original signal with an inverted error signal, a corrected signal may be detected from the fiber for distribution.