发明名称 |
Semiconductor laser module, spatial optical transmission system and electronic appliance |
摘要 |
A highly sensitive and inexpensive spatial optical transmission system using an LD (Laser Diode) as a light source and making use of the characteristics of a light receiving element is provided. The system includes a laser chip oscillating a laser beam, and a light receiving element receiving and converting to an electric signal the laser beam emitted from the laser chip and propagated through a space. The laser chip oscillates a laser beam having a wavelength of which absorption coefficient at the light receiving element is in a range of 0.001 to 0.3 mum-1.
|
申请公布号 |
US2002154667(A1) |
申请公布日期 |
2002.10.24 |
申请号 |
US20020126967 |
申请日期 |
2002.04.22 |
申请人 |
SHIMONAKA ATSUSHI |
发明人 |
SHIMONAKA ATSUSHI |
分类号 |
H01L31/0232;H01L31/167;H01S5/00;H01S5/022;H04B10/02;H04B10/10;H04B10/28;(IPC1-7):H01S3/04 |
主分类号 |
H01L31/0232 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|