文摘
This paper reports on the design, fabrication and characterization of a fiber surface plasmon resonance sensor whose design is based on the fiber butt-joint technology. We splice a single mode fiber and a multimode fiber together after they are grinded with an angular surface. We excite the surface plasmon wave by using the single mode fiber, which helps to improve the sensitivity effectively, and receive the surface plasmon resonance reflected spectrum by using the multimode fiber. Besides that, we can change the surface plasmon resonance angle by changing the single mode fiber grind angle, which provides the surface plasmon resonance wavelength adjustment.