发明名称 |
Halbleiterlaser-Treiberschaltung |
摘要 |
A semiconductor laser driving circuit includes an adder for adding outputs of a plurality of semiconductor lasers and obtaining an output sum of the semiconductor lasers, and a comparator for comparing the output sum with a reference signal which is set in advance depending on a desired output sum which is to be obtained, and for outputting a comparison signal which is dependent on a result of the comparision. The light emission powers of each of the semiconductor lasers are controlled based on the comparison signal so that the output sum becomes constant. |
申请公布号 |
DE4323031(C2) |
申请公布日期 |
1998.01.29 |
申请号 |
DE19934323031 |
申请日期 |
1993.07.09 |
申请人 |
FUJITSU LTD., KAWASAKI, KANAGAWA, JP |
发明人 |
HARASAWA, SHINICHIROU, KAWASAKI, KANAGAWA, JP |
分类号 |
H01L31/12;H01L33/00;H01S3/0941;H01S5/042;H01S5/068;H01S5/0683;H01S5/40 |
主分类号 |
H01L31/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|