A heterodyne interference is caused by a frequency modulation of a laserdiode (LD) with a ramp injection current, and a linear phase detection is realized.
传感器利用注入结电流直接调频的半导体激光(LD)产生外差干涉，从而实现了干涉相位的线性检测。
2
This paper reports that the frequency responses of a direct-modulated DFB laserdiode can be improved using an injection locking method.
验证了通过注入锁模方法，分布反馈(DFB)半导体激光器的频率响应可以得到明显的改善。
3
A method based on pulse injection was put forward to test the light-current-voltage (LIV) characteristics of laserdiode (LD), and a new type of pulse measurement system was developed.