Patent · US Expired

Wavelength conversion crystal and method for generating laser beam, and apparatus for generating laser beam

US6551528B1 · kind B1 · utility

5Cited by

2References

15Claims

0Family size

Assignee

Japan Science and Technology · JP

Inventors

Takatomo Sasaki · Suita, JP
Yusuke Mori · Kobe, JP
Masashi Yoshimura · Osaka, JP

Key dates

Filing date	Nov 14, 2000
Grant date	Apr 22, 2003
Priority date	—
Expiry date	Nov 14, 2020

Classification

Technology area (CPC H)Electricity
CPC primaryH01S3/1611
WIPO fieldOptics
WIPO sectorInstruments

Abstract

As a wavelength conversion crystal whose double refraction index is controllable, a crystal represented by a formula (I), M1xM21−xCa4O(BL3)3, where each of M1 and M2 represents one or more types of different rare earth elements and 0<x<1, is used, and as a novel means for second harmonics generation, a nonlinear optical crystal represented by a formula (II), GdxY1−xCa4O(BO3)3, where 0.01&lE;x&lE;0.35, is used to generate second harmonics.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.