公开(公告)号：US20190049675A1

公开(公告)日：2019-02-14

申请号：US16165070

申请日：2018-10-19

申请人： Polskie Centrum Fotoniki i Swiatlowodów

发明人： Lukasz Szostkiewicz ,  Malgorzata Kuklinska ,  Marek Napierala ,  Tomasz Nasilowski ,  Lukasz Ostrowski ,  Anna Pytel ,  Michal Szymanski ,  Karol Wysokinski ,  Anna Makowska ,  Michal Murawski ,  Tadeusz Tenderenda ,  Beata Bienkowska

IPC分类号： G02B6/42

摘要： A device for selectively increasing higher-order mode losses comprises an optical fiber taper executed on a multi-mode fiber of a selected wavelength, and the fiber taper has separated regions, i.e. non-tapered fiber regions which have a first diameter equal to that of the main fiber. The tapered regions can also include transition regions in which the fiber diameter is reduced/increased, respectively, and a taper waist region which has a reduced diameter, where the taper level ratio between the regular diameter and the narrowed diameter is at least 20%, and the length of the transition regions are at least 0.5 mm on one side and may be zero on the other side, and the length of the taper waist with the narrower diameter is at least 0.5 mm. Furthermore, the taper area is coated with a filtering substance with attenuating properties between the tapered section and the cladding.

公开(公告)号：US20160327736A1

公开(公告)日：2016-11-10

申请号：US15102216

申请日：2014-12-04

申请人： POLSKIE CENTRUM FOTONIKI I SWIATLOWODÓW

发明人： Zbigniew Holdynski ,  Michal Szymanski ,  Tadeusz Tenderenda ,  Michal Murawski ,  Tomasz Nasilowski ,  Marek Napierala ,  Lukasz Ostrowski ,  Katarzyna Joanna Pawlik ,  Mateusz Slowikowski ,  Lukasz Szostkiewicz ,  Anna Katarzyna Ziolowicz

IPC分类号： G02B6/02 ,  G02F1/365

CPC分类号： G02B6/02361 ,  G02B6/02295 ,  G02B6/02314 ,  G02B6/02338 ,  G02B6/02347 ,  G02B6/02357 ,  G02B6/02385 ,  G02F1/365

摘要： Microstructured optical fibre with selectively enlarged spaces of reduced refraction index, especially for the generation of non-linear effects and stress measurements with a ring configuration of spaces, located around a cladded core, where the spaces demonstrate cross-section shape close to circle and decreased diffraction index, especially for the generation of non-linear effects and stress measurements, made of glass, preferably of silica glass or polymer and are located in nodes of hexagonal lattice with distances between the lattice nodes equal to the lattice constant, in which, around a single-mode core, there are, at least two rings with spaces of decreased diffraction index, filled with gas or fluid or a polymer, where the diameter of every-second space with decreased diffraction index in, at least, one ring, is enlarged to be lower from the double lattice constant, while the diameters D of all the enlarged spaces with decreased diffraction index are similar in size and the diameters d of non enlarged spaces with decreased diffraction index are close in size and lower from the lattice constant and the ratio of the diameter d of non enlarged space to the lattice constant is within the range from 0.30 to 0.45.

摘要翻译： 具有折射率降低的选择性扩大空间的微结构光纤，特别是用于产生非线性效应和具有环形构造的空间的应力测量，其位于包层芯周围，其中空间显示截面形状接近圆并且减小 衍射指数，特别是用于生成玻璃，优选石英玻璃或聚合物的非线性效应和应力测量，并且位于六边形晶格的节点中，格子节点之间的距离等于晶格常数，其中围绕 至少有两个具有降低衍射指数的空间的环，填充有气体或流体或聚合物，其中在至少一个环中衍射指数降低的每秒第二空间的直径为 从双晶格常数扩大到较低，而衍射指数降低的所有扩大空间的直径D大小相似，二 具有降低的衍射指数的非放大空间的尺寸d大小接近，并且从晶格常数降低，并且非扩大空间的直径d与晶格常数的比率在0.30至0.45的范围内。