熔拉与腐蚀光纤探针传输特性的研究  

Study on the transmission properties of the etched taper and the pulled taper fiber probes

作　　者：杨修文[1] 

机构地区：[1]郧阳师范高等专科学校物理系,湖北丹江口442700

出　　处：《激光与红外》2010年第7期740-743,共4页Laser & Infrared

基　　金：国家自然科学基金项目(No.69877014);湖北省教学研究项目(No.2003298)资助

摘　　要：用实验方法测量了用熔拉或腐蚀的方法制备的光纤探针的传输效率随光纤圆锥角的变化关系,作出传输效率曲线,通过测定光纤探针传输效率的实验,我们看到:在小锥角的情况下,用熔拉法制备的光纤探针与腐蚀的方法制备的光纤探针的传输效率基本相同。在大锥角的情况下,用腐蚀法制备的光纤探针传输效率高于熔拉的方法制备的光纤探针的传输效率。在锥角为50.4°时,腐蚀的光纤探针传输效率为78.8%,熔拉的光纤探针传输效率为76.6%。在相同的条件下,两者的传输效率的差别随入射光波长的增加而下降。The transmission efficiency of fiber-optic probe by melting-pulling or chemical etched is discussed in this paper.The transmission efficiency of tapered fibre versus wedge angle is given.Based on the experiments,the transmission properties of the two type probes were analyzed and compared.It shows that the transmission efficiency of fiber-optic probe by melting-pulled is the same as that of the fiber-optic probe by chemical etcheng in case of small cone angle.The transmission efficiency of fiber-optic probe by melting-pullin is higher than that of the fiber-optic probe by chemical etching in case of large cone angle.In the cone angle of 50.4 °,the fiber optic probe transmission efficiency is 78.8% for etching fiber probe and is 76.6% for melt-pulled fiber probe.In the same conditions,the difference between the two transmission efficiency decrease with the increase of incident light wavelength.

关 键 词：锥形光纤探针 传输效率 锥角 波长 熔拉 化学腐蚀 

分 类 号：TN253[电子电信—物理电子学]