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. 30, 1976
Filed:
Oct. 28, 1975
Richard Howard Johnson, Palm Bay, FL (US);
Eddie Hung Young, Jr, Indialantic, FL (US);
Charles Raymond Burr, Melbourne, FL (US);
Robert Morris Montgomery, Indialantic, FL (US);
Harris-Intertype Corporation, Cleveland, OH (US);
Abstract
A mode-locked cavity-dumped laser in which the dumping is phase-coherently synchronized with the mode locking. An acousto-optic modulator is employed in the cavity for dumping. On two passes through the modulator, an envelope pulse of light has two portions deflected to a common output path, one of the portions being shifted upward in frequency and the other downward, by an amount equal to the acoustic excitation frequency. The ability of the modulator to provide output power is therefore envelope-modulated at twice the acoustic frequency. The power of successive output pulses is maintained uniform by synchronizing the phase of the circulating mode-locked pulses with respect to the phase of the envelope modulation.