公开(公告)号：US3894788A

公开(公告)日：1975-07-15

申请号：US36705373

申请日：1973-06-04

Applicant: NAT RES DEV

Inventor： GAMBLING WILLIAM ALEXANDER ,  PAYNE DAVID NEIL

IPC: G02B6/032 ,  G02B5/14

CPC classification number: G02B6/032

Abstract: A liquid-core fibre-optic waveguide comprising a hollow vitreous fibre filled with a liquid wherein the liquid is substantially a single compound, a mixture of compounds, or a single compound or a mixture of compounds dissolved in or diluted with a solvent, the said compound or compounds being selected from the class of aliphatic compounds which contain from three to seven carbon atoms per molecule and are fully halogenated with fluorine, chlorine, bromine or any combination thereof, such that the liquid is liquid at 25* centigrade, has a refractive index greater than that of the vitreous fibre and has minimal optical absorption and scattering throughout at least a substantial part of the spectral range from 0.5 to 2.0 microns. The preferred vitreous fibre is soda-lime borosilicate glass and the preferred liquid is hexachloro-1,3-butadiene. Alternative liquids are hexachloropropene and 1,4-difluoroctachlorobutane; a mixture of any two or all three of these compounds may be used in a silica or quartz fibre. Heating or the addition of a solvent may be used to facilitate the filling of the fibre with the liquid. The preferred solvents are carbon tetrachloride and tetrachloroethylene but bromo-trichloromethane or tribromofluoromethane could alternatively be used.

Abstract translation: 一种液芯光纤波导，包括填充有液体的中空玻璃纤维，其中液体基本上是单一化合物，化合物的混合物或溶解在溶剂中或用溶剂稀释的单一化合物或化合物的混合物，所述 化合物或化合物选自每分子含有3至7个碳原子并被氟，氯，溴或其任何组合完全卤化的脂族化合物类，使得液体在25℃下为液体，具有折射 指数大于玻璃纤维的指数，并且在0.5至2.0微米的至少大部分光谱范围内具有最小的光吸收和散射。 优选的玻璃纤维是钠钙硼硅酸盐玻璃，优选的液体是六氯-1,3-丁二烯。 替代液体是六氯丙烯和1,4-二氟八氯丁烷; 这些化合物中的任何两种或全部三种的混合物可以用于二氧化硅或石英纤维中。 加热或添加溶剂可以用于促进纤维与液体的填充。 优选的溶剂是四氯化碳和四氯乙烯，但也可以使用溴 - 三氯甲烷或三溴 - 氟甲烷。