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:
Sep. 30, 2003
Filed:
Apr. 30, 1999
Applicant:
Inventor:
Tadashi Kasamatsu, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S 3/091 ; H01S 5/00 ;
U.S. Cl.
CPC ...
H01S 3/091 ; H01S 5/00 ;
Abstract
A laser crystal is formed on a substrate in a solid-state laser device. The laser crystal oscillates laser beam from a second end face when an excitation beam is projected to a first end face. An excitation beam emission element emitting the excitation beam is provided for the solid-state laser device. A waveguide path is formed on the substrate. The excitation beam is transmitted through the waveguide path. The waveguide path has a first end portion on which the excitation beam emitted by the excitation beam emission element impinges and a second end portion which opposes the first end face of the laser crystal. The excitation beam is emitted from the second end portion.