发明授权
- 专利标题： Semiconductor laser gyro with modulated driving power source
- 专利标题（中）： 具有调制驱动电源的半导体激光陀螺仪
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申请号： US09419780申请日： 1999-10-18
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公开(公告)号： US06275296B1公开(公告)日： 2001-08-14
- 发明人: Takahiro Numai
- 申请人： Takahiro Numai
- 优先权： JP10-296580 19981019; JP11-217189 19990730
- 主分类号： G01C1966
- IPC分类号： G01C1966
摘要：
An optical gyro reduces the coupling loss generated when emitted laser beams are incident upon a photo detector and the noise generated by the laser beams reentering the laser from an external point of reflection. The gyro includes a ring resonator type semiconductor laser for having laser beams transmitted circularly in opposite directions relative to each other and a terminal for detecting a beat signal, with the active layer of the semiconductor laser being ring-shaped.