发明名称 Semiconductor device, semiconductor laser and gyro
摘要 <p>The present invention provides an optical gyro adapted to reduce 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 as well as to a method of operating such an optical gyro. A gyro according to the invention comprises 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, the active layer of the semiconductor laser being ring-shaped. &lt;IMAGE&gt;</p>
申请公布号 EP0995969(A2) 申请公布日期 2000.04.26
申请号 EP19990120637 申请日期 1999.10.18
申请人 CANON KABUSHIKI KAISHA 发明人 NUMAI, TAKAHIRO
分类号 G01C19/66;H01S5/10;(IPC1-7):G01C19/66 主分类号 G01C19/66
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