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:
Jun. 20, 1978
Filed:
Jan. 12, 1977
Cecil L Hayes, Placentia, CA (US);
Rockwell International Corporation, El Segundo, CA (US);
Abstract
In a multi-element array of laser oscillators, each having a control input for adjusting the output laser light frequency thereof, apparatus for phase and frequency locking each laser oscillator of the array to a reference laser oscillator. An optical phase shifter cooperates with the reference laser oscillator and with a radio frequency source to provide a local oscillator energy source. Mixing of the local oscillator energy with that of a respective one of the array oscillators by photodetector and then phase detection of the mixed or down-converted signals, relative to the radio frequency source, provides a control signal for phase and frequency control of the array oscillator.