Title:
SEMICONDUCTOR LIGHT EMITTING DEVICE
Document Type and Number:
Japanese Patent JPS5758378
Kind Code:
A
Abstract:
PURPOSE:To obtain an nth multiple of a semiconductor laser device emitted frequency by a mthod wherin the laser device is provided with a converter wherein the emitted frequency is converted into an nth (n=2,3,4,...) harmonic. CONSTITUTION:A semiconductor laser element 21 is fixedly installed on a heat radiating metal block 22. A secondary converter SHG is composed of such a dielectric crystal as LiNbNO3, etc. Light generated in the laser element 21 is converted into a second harmonic wave in a device 23 and then goes not of a window 28. This is but an example and the employment of a proper harmonic converter element results in the output of a harmonic more than two times higher than the fundamental frequency.
Inventors:
HASEGAWA OSAMU
Application Number:
JP13377780A
Publication Date:
April 08, 1982
Filing Date:
September 26, 1980
Export Citation:
Assignee:
FUJITSU LTD
International Classes:
G02F1/37; H01L33/30; H01L33/48; H01S5/00; (IPC1-7): H01L33/00; H01S3/18
Domestic Patent References:
| JPS51142284A | 1976-12-07 |