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. 04, 2002
Filed:
Feb. 15, 2000
Applicant:
Inventor:
John J. Zayhowski, Pepperell, MA (US);
Assignee:
Massachusetts Institute of Technology, Cambridge, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/00 ; H01S 3/10 ;
U.S. Cl.
CPC ...
H01S 3/00 ; H01S 3/10 ;
Abstract
A passively Q-switched laser is pumped by a first optical input signal to produce a train of optical pulses at a first wavelength. These pulses are then fed into a gain-switched laser. The absorption of energy at the first wavelength induces gain in the cavity of the gain-switched laser at a second wavelength, resulting in the spontaneous generation of an optical output pulse at a preferred eye-safe wavelength.