论文部分内容阅读
The critical findings associated with end-face total internal reflection (TIR) phenomemon we proved before are reported.In particular,these findings reveal that the end-face-TIR capable rays experience enormous mode mixing when encountering a roughened end face.As a result,94% of the overall detectable power is contributed by this effect.With a smooth fiber end face,this figure is mere 52%.We interpret the mechanism behind these unusual phenomena and its significance for the performance enhancement of fiber optic evanescent wave sensor.
The critical findings associated with end-face total internal reflection (TIR) phenomemon we proven before are reported.In particular, these findings reveal that the end-face-TIR capable rays experience enormous mode mixing when encountering a roughened end face. As a result , 94% of the overall detectable power is contributed by this effect .With a smooth fiber end face, this figure is mere 52% .We interpret the mechanism behind these unusual phenomena and its significance for the performance enhancement of fiber optic evanescent wave sensor.