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:
Jul. 04, 2017
Filed:
Aug. 25, 2014
Applicant:
Robert Bosch Gmbh, Stuttgart, DE;
Inventor:
Heiko Ridderbusch, Schwieberdingen, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/11 (2006.01); H01S 3/16 (2006.01); F02P 23/04 (2006.01); H01S 3/06 (2006.01); H01S 3/04 (2006.01); H01S 3/08 (2006.01); H01S 3/094 (2006.01); H01S 3/0941 (2006.01); H01S 3/113 (2006.01); H01S 5/183 (2006.01);
U.S. Cl.
CPC ...
H01S 3/1698 (2013.01); F02P 23/04 (2013.01); H01S 3/0407 (2013.01); H01S 3/0612 (2013.01); H01S 3/0627 (2013.01); H01S 3/094 (2013.01); H01S 3/11 (2013.01); H01S 3/164 (2013.01); H01S 3/1618 (2013.01); H01S 3/1643 (2013.01); H01S 3/1696 (2013.01); H01S 3/08 (2013.01); H01S 3/09415 (2013.01); H01S 3/094084 (2013.01); H01S 3/113 (2013.01); H01S 5/183 (2013.01);
Abstract
A laser ignition system, in particular for an internal combustion engine, including a vertical emitter and a laser-active crystal, the laser-active crystal being doped in at least some areas using ytterbium, the ytterbium-doped area having a length of 200 μm to 7000 μm. The monolithic laser is based on a YAG or LuAG host crystal having 3 differently doped areas: a laser-active ytterbium-doped area, an undoped area which determines the resonator length and therefore the pulse duration, and a chromium-doped or vanadium-doped area for the passive Q-switch. The resonator is delimited by 2 mirrors.