we suggested to stable the output light intensity by using the bistable optical device and use this new device to measure the density of liquid by refractive index modulation sensor.
我们提出采用光学双稳装置来稳定光源输出功率,并将它用于折射率调制型光纤传感器测量液体浓度的实验中。
a bistable optical device must be constituted by a feedback function and a modulating function.
因为移位计数器的设计可查已有的反馈函数表达式,所以十分容易。
in this letter, we report a novel bistable optical device composed merely of a laser diode (or led), two pin photodetectors and several electronic components.