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. 24, 2014
Filed:
Apr. 28, 2010
Haelyung Hwang, Goyang-Si, KR;
Seunghwan Kong, Yangcheon-Gu Seoul, KR;
Huicheol Lee, Goyang-Si, KR;
Lutronic Corporation, Gyeonggi-do, KR;
Abstract
The present invention relates to an apparatus for stabilizing second harmonic wave pulse output in a laser system operating by pulses. The apparatus of the present invention comprises: a pulse laser oscillating unit () which outputs a laser pulse; a nonlinear crystal () which converts the laser pulse of a first wavelength output by the pulse laser oscillation unit () into a second harmonic wave with a value that is half of the first wavelength, and outputs the converted second harmonic wave; and an optical absorption filter () which absorbs a portion of the energy of the converted second harmonic laser pulse from the nonlinear crystal () to output the second harmonic wave with a lower energy. The thus-configured apparatus of the present invention supplies a fundamental wave in a stable state and having a small PTP value and high level energy to the nonlinear crystal, in order to obtain the second harmonic wave which is in a more stable state and has a small PTP value and a variety of energies.