【摘要】 用实验方法测量了楔形光纤探针的传输效率随光纤楔角的变化关系,作出传输效率曲线,通过测定楔形光纤探针传输效率的实验可知,楔体角度越大,过渡区越短,泄漏光就越少,传输效率会提高。在楔角由20.2°增大到33.6°以及楔角由55.8°增大到83.6°时,传输效率曲线呈较快的上升趋势;在楔角由33.6°增大到55.8,°传输效率曲线上升趋势较缓。在相同的条件下,楔形光纤探针的传输效率随入射光波长的增大而快速地下降。更多还原

【Abstract】 The transmission efficiency of the wedge-shaped fibre probe is measured.The transmission efficiency of probe versus wedge angle is given.By the experiments,the transmission properties had been analyzed and compared.It had been shown that the higher the wedge angle was,the shorter the transition region would be and the less leakage of light would be,also the transmission efficiency would increase correspondingly.The curve of the transmission efficiency assumes quicker uptrend by varying the wedge angle from 20.2° to 33.6° or the wedge angle from 55.8° to 83.6°,The curve of the transmission efficiency uptrend religion was slow by varying the wedge angle from 33.6° to 55.8°.Under the same condition,the transmission efficiencies increased with the increase of optical wavelengthment.更多还原