光纤隐失波传感器具有设计简单、灵敏度高、易与其他传感技术相结合的特点，被广泛应用于生物和化学传感领域。概述了光纤隐失波传感的定义和常用的光纤种类；总结了光纤隐失波传感器的优化方法和原理；回顾了石英光纤以及硫系光纤在生化传感领域的研究进展，并展望了今后的发展方向和趋势。

We proposed a compact design of an optical biochemical sensor based on the Mach-Zehnder interferometer (MZI), which was coupled by a ring resonator (RR) as a sensing tool. The sensor sensitivity has been determined by power difference at the output ports. The sensor enhancement has been optimized by numerically evaluating the geometrical parameters of the MZI and RR. A great sensor sensitivity depicted by Fano resonance characteristic has been demonstrated as a function of the round trip phase in the range of 4×10–4 – 4×10–4, which was changed by the presence of the sample solution in the sensing area. This optimum sensitivity has been obtained for the values of two coupling coefficients of the MZI 120.5/mmκκ==and the coupling coefficient between the MZI arm and RR 0.5/mm.Rκ= Furthermore, a good profile of sensitivity exchange has been exhibited by inducing the direct current voltage to the coupling region of Rκ. Finally, the output power transmission of the ring-coupled arm was depicted as a function of tunable κR.

基于高场非对称波形离子迁移谱原理设计了一种由离子源,迁移区和检测器3部分组成的生化传感器。传感器采用真空紫外灯作离子源,高纯氮(99.999%)为载气,在常压下工作。加工了两种由两平行金属极板组成的迁移区,一种由两平板铜块组成,尺寸为25 mm×10 mm×1 mm;另外一种由微机电(MEMS )工艺加工,尺寸为20 mm×10 mm×1.5 mm。MEMS工艺加工的迁移区间距为1.5 mm,电场强度＜10 000 V/cm,不能过滤丙酮离子;铜块迁移区间距为1 mm,电场强度＞10 000 V/cm。当方波非对称射频电压峰峰值为1 600 V,频率为195.8 kHz,占空比为30%,补偿电压为-8.63 V时,采用平板铜块迁移区实现了丙酮离子的位移补偿,实验结果验证了传感器的性能。