光学双稳态在光纤传感器的应用

光强调制型光纤传感器，已得到了广泛的应用，它的测量灵敏度，精度和稳定性，主要取决于光源输出功率的稳定性，传统的办法是采用引入参考光路，利用光电补偿方法，来减小光源波动造成的影响，我们提出采用光学双稳装置来稳定光源输出功率，并将它用於折射率调制型光纤传感器测量液体浓度的实验中，本文详细报导了该装置的原理，内容和测量结果，并指出进一步研究方向。

An application of bistable optical device for fiber-optical sensor

Fiber-optical sensor is light intensity modulation sensor and has got good application. The sensitivity, precision and stability of measurement are main decided by the stability of output light intensity. The electro-optical compensation is used to decrease the unstability of light intensity in traditional method by leading into reference light. 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. The principle of experimental device,experimental results are introduced and the research direction is pointed out in this paper.