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1. 发明申请

WO1996027121A1 OPTICAL FIBRE INTERFEROMETER AND OPTICAL FIBRE PIEZO-ELECTRIC MODULATOR 审中-公开
标题翻译：光纤干涉仪和光纤光电调制器
公开(公告)号：WO1996027121A1
公开(公告)日：1996-09-06
申请号：PCT/RU1996000045
申请日：1996-02-27
申请人： NIZHNY NOVGOROD CENTER FOR HIGH TECHNOLOGY INCUBATION (NCHTI) , INSTITUTE OF APPLIED PHYSICS OF RUSSIAN ACADEMY OF SCIENCE (IAP RAS) , FELDSHTEIN, Felix Isaakovich , GELIKONOV, Grigory Valentinovich , GELIKONOV, Valentin Mikhailovich , GLADKOVA, Natalya Dorofeevna , LEONOV, Vladimir Innokentievich , SERGEEV, Alexandr Mihailovich
发明人： NIZHNY NOVGOROD CENTER FOR HIGH TECHNOLOGY INCUBATION (NCHTI) , INSTITUTE OF APPLIED PHYSICS OF RUSSIAN ACADEMY OF SCIENCE (IAP RAS)
IPC分类号： G01J09/02
CPC分类号： G02F1/0134 , G01B9/02091 , G01B2290/35 , G02F1/2252
摘要： The invention relates to industrial physics, in particular to the class of devices used for investigating the internal structure of objects, and can be used in medicine for diagnosis of the state of individual organs and systems in a human subject, in particular for optical coherence tomography, and in industrial diagnostics, e.g. for monitoring industrial processes. The aim of the invention is to create an optical fibre interferometer which, when used as part of an optical coherence tomography system, will permit investigation of mediums with low characteristic times for changes in characteristics or position relative to the optical probe, for example in in vivo investigation of tissues. Another aim of the present invention is to produce an optical fibre piezo-electric transducer suitable for use in an optical fibre interferometer to ensure that the mediums in question are scanned to the requisite depth. In the optical fibre interferometer as developed, the piezo-electric transducer in the form of an optical fibre controlled delay line serves as the optical fibre part of the interferometer leg which allows the virtual inertia-free adjustment of the length of the interferometer leg and therefore adjustment of the difference in optical lengths of the legs by a factor of at least several tens of times the working wavelengths of the interferometer. The optical fibre piezo-electric transducer as designed takes the form of an optical fibre piezo-electric controlled delay line and comprises a piezo-ceramic wafer on the opposing surfaces of which are provided electrodes and an optical fibre. It is expedient to make the wafer in the form of a disc and to lay the fibre in a spiral, which ensures that the length of the optical fibre can be altered within broad limits without inertia and with a transducer of small dimensions.
摘要翻译：本发明涉及工业物理学，特别涉及用于调查物体内部结构的装置类别，并且可用于医学诊断人类受试者个体器官和系统的状态，特别是用于光学相干层析成像，以及工业诊断，例如用于监测工业过程。本发明的目的是创建一种光纤干涉仪，当光学相干断层摄影系统被用作光学相干断层扫描系统的一部分时，将允许对特性或介质相对于光学探针变化的特性时间较低的介质进行研究，例如在组织体内研究。本发明的另一个目的是生产一种适用于光纤干涉仪的光纤压电换能器，以确保所讨论的介质被扫描到必要的深度。在开发的光纤干涉仪中，光纤控制延迟线形式的压电换能器用作干涉仪腿的光纤部分，允许虚拟无惯性地调节干涉仪腿的长度，因此将腿的光学长度的差异调整为干涉仪的工作波长的至少几十倍。设计的光纤压电换能器采用光纤压电控制延迟线的形式，并且在其相对表面上设置有电极和光纤的压电陶瓷晶片。将晶片制成圆盘的形式是有利的，并且将纤维铺设成螺旋状，这确保光纤的长度可以在无惯性的宽范围内和小尺寸的换能器中改变。

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