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:
Aug. 03, 2021
Filed:
Jun. 18, 2018
Applicant:
Coherent, Inc., Santa Clara, CA (US);
Inventor:
Gregory Dumond, Santa Clara, CA (US);
Assignee:
Coherent, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/23 (2006.01); H01S 3/067 (2006.01); H01S 3/106 (2006.01); H01S 5/065 (2006.01); H03M 1/74 (2006.01);
U.S. Cl.
CPC ...
H01S 3/2308 (2013.01); H01S 3/06754 (2013.01); H01S 3/1068 (2013.01); H01S 5/0657 (2013.01); H03M 1/74 (2013.01);
Abstract
A laser master-oscillator power-amplifier (MOPA) is operated to provide successive bursts of ultrashort pulses. The pulse-bursts are selected by an optical modulator from a pulse train delivered by the master oscillator prior to amplification in the power amplifier. The optical modulator has a selectively variable transmission specified by an analog voltage signal having a stepped waveform. The voltage signal is delivered by a sequentially-switched parallel switch-array connected in parallel with a parallel DAC having multiple parallel DC voltage outputs corresponding to steps of the stepped waveform.