传像光纤束透过率测量方法研究.pdf

第29卷第8期电子测量与仪器学报Vol29 No年8月JOURNAL OF ELECTRONIC MEASUREMENT AND INSTRUMENTATTONY1231DO:10.13382/j.jemi.2015.(08.019传像光纤束透过率测量方法研究谷立山陈晓苹(中国科学院长春光学精密机械与物理研究所长春130033)摘要:光学纤维的传光特性不同于一般的成像光学系统,透过率的测量方法也不同。区别在于,测量传像光纤束透过率时不能采用平行光束,而测量成像光学系统透过率时,即可以采用会聚光束,又可以采用平行光束,只要不拦光即可。光在光纤束中遵循全反射的传光原理,而光在成像光学系统中遵循折、反射传光原理。通过对细小口径传像光纤柬透过率的测量方法进行了实验、检测研究,得到一个新的測量光纤東透过率的方法。此方法完全不同于目前国标中光纤束透过率测量方法,又区别于成像光学系统透过率的测量方法。测量传像光纤東透过率时,要求光在光纤束中既要避免拦光现象又要满足全反射条件。我们根据光纤東传光原理研制了一个测量连接装置加到光谱仪的测量光路里,构成一个光纤東透过率测量光路系统。该测量法的重心在测量连接装置上。用该测量法成功地完成了细小口径成像光纤束透过率参数的测量,测量结果与设计预期值接近,测量准确度满足用户使用要求关键词:光学纤维;光纤東传像原理;测量迮接装置;光谱仪中图分类号:TN25文献标识码:A国家标准学科分类代码:510.5020Study on transmittance measurement for image-carrying optical fiber bundleLishan Chen Xiaoping(Chanchun Institute of Optics, Fine Mechanics and Physics, Jilin province, Changchun 130033, ChinaAbstract: The light transforming technique of optical fiber is different from the optical system, and the same as themethod of transmittance measurement. When we measure the transmittance of the image-earrying optical fiber, wcan not use the collimated light, but for the optical system, the collimated light and convergent light can be used forthe measurement, as long as the light is not blocked. The light transforming in the optical fiber follows the theory oftotal reflection, but in the optical system is the law of refraction. We made a lot of research and experiments aboutthe measurement on the image*arrying optical fiber bundle, we got a new transmittance measurement method. Thismethod used for the optical system also. We followed the light transforming principle, developed measurement connecting equipment which is attached to the spectrograph, constituted a transmittance measurement system for theoptical fiber bundle. This method has been completed the measure of small diameter image-earrying optical fiberthe results stay the same as designation, measuring accuracy meet the requirementsKeywords optical fiber; image-earrying theory of the optical fiber bundle; connecting equipment; spectrograph光学纤维丝集成一个体就构成了所谓的“光学纤维束”,简称光纤束。光纤束通常分为两大类,纤维光学是近代光学领域中个重要的分支,类是通信用光纤;另一类是非通信用光纤。目前是一项应用很广泛的新技术。如果把一些单根的大多数应用在光通信方面。非通信光轩也被广泛收稿日期:2015405 Received Date:2015-05