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1.发明授权Optical D.C. electric-field measuring apparatus with optic sensing means exhibiting both electrooptic and photoelectric effects 失效具有光电感测装置的光学直流电场测量装置具有电光和光电效应
公开(公告)号：US4570064A
公开(公告)日：1986-02-11
申请号：US513314
申请日：1983-07-13
CPC分类号： G01R15/242 , G01R29/12
摘要： An electric-field measuring apparatus utilizing electrooptic effect for measuring the intensity of an electric DC field includes a material exhibiting both electrooptic effect and photoelectric effect or both a material exhibiting the electrooptic effect and a material exhibiting the photoelectric effect which material or materials are irradiated with a continuous light ray of a wavelength capable of inducing the electrooptic effect and an intermittently interrupted light ray of a wavelength capable of inducing the photoelectric effect.
摘要翻译： 利用电光效应测量电场的强度的电场测量装置包括既具有电光效应又具有光电效应的材料，或具有电光效应的材料和表现出光电效应的材料，该材料或材料被照射 能够引起电光效应的波长的连续光线以及能够引起光电效应的波长的间歇性中断的光线。
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公开(公告)号：US4604577A
公开(公告)日：1986-08-05
申请号：US462765
申请日：1983-02-01
申请人： Hiroyoshi Matsumura , Toshio Katsuyama , Norio Ohta , Tsuneo Suganuma , Kazuyuki Nagatsuma , Yutaka Sugita
发明人： Hiroyoshi Matsumura , Toshio Katsuyama , Norio Ohta , Tsuneo Suganuma , Kazuyuki Nagatsuma , Yutaka Sugita
IPC分类号： G01R33/032 , G02F1/00 , G02F1/09 , G01R33/02 , G02B5/30
CPC分类号： G02F1/0036 , G01R33/0322
摘要： A measuring instrument of magnetic field utilizing Faraday rotation is disclosed in which a medium exhibiting Faraday rotation includes at least one thin magnetic garnet film magnetized in a propagation direction of light and having a composition expressed by a general formula R.sub.3-x Q.sub.x (Fe.sub.5-y M.sub.y)O.sub.12 (where R indicates at least one element selected from a group consisting of Y, La, Lu, Ca, Sm and Bi, Q indicates at least one element selected from a group consisting of Gd, Eu, Er, Tm, Tb, Yb, Ho and Dy, M is at least one element selected from a group consisting of Ga, Al, Ge, Si, Sc, Mn, In, V and Cr, the value of x lies in a range expressed by a formula 0.1.ltoreq.x.ltoreq.3.0, and the value of y lies in a range expressed by a formula 0.ltoreq.y.ltoreq.5.0). According to this instrument, stable measured values are obtained independently of temperature variation.
摘要翻译： 公开了利用法拉第旋转的磁场测量仪器，其中显示法拉第旋转的介质包括在光传播方向上被磁化并具有通式R3-xQx（Fe5-yMy）表示的组成的至少一个薄磁石榴石薄膜， O12（其中R表示选自Y，La，Lu，Ca，Sm和Bi中的至少一种元素，Q表示选自由Gd，Eu，Er，Tm，Tb，Yb组成的组中的至少一种元素） ，Ho和Dy，M是选自Ga，Al，Ge，Si，Sc，Mn，In，V和Cr中的至少一种元素，x的值在由式0.1表示的范围内， = x <= 3.0，y的值位于由公式0表示的范围内。 根据该仪器，独立于温度变化获得稳定的测量值。
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公开(公告)号：US4505729A
公开(公告)日：1985-03-19
申请号：US542186
申请日：1983-10-14
IPC分类号： C03B20/00 , C03B37/012 , C03B37/018 , G02B6/00 , C03C25/02
CPC分类号： C03B37/01248 , C03B37/01217 , C03B37/01225 , C03B37/018 , C03B2203/24 , C03B2203/30
摘要： A method of producing a preform for a single-polarization optical fiber wherein a glass rod to become a core or a glass rod to become a clad is inserted into a quartz tube which has on its inner wall surface a glass thin film to become a clad layer, a glass thin film to become a jacket layer or glass films to become a jacket layer and a clad layer, and wherein under a state under which the internal pressure of the quartz tube is reduced, the quartz tube is heated to become solid, whereby at least one of the clad and the jacket of the optical fiber preform becomes elliptic in cross section.
摘要翻译： 一种制造用于单极化光纤的预成型体的方法，其中将成为芯的玻璃棒或成为包层的玻璃棒插入到其内壁表面上具有玻璃薄膜以成为包层的石英管中 层，成为护套层的玻璃薄膜或成为护套层和覆盖层的玻璃膜，并且其中在石英管的内部压力降低的状态下，石英管被加热变得固体， 由此光纤预制件的包层和护套中的至少一个横截面变为椭圆形。
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公开(公告)号：US4828592A
公开(公告)日：1989-05-09
申请号：US883456
申请日：1986-07-08
IPC分类号： C03B37/018 , G02B6/10
CPC分类号： C03B37/01807 , C03B37/01869 , G02B6/105 , C03B2203/10 , C03B2203/24 , C03B2203/30
摘要： An optical fiber having an intense polarization plane maintenability is constructed of an optical waveguide having a circular core and a circular cladding, a jacket formed on the outer circumference of the optical waveguide and having an elliptical outer circumference, and a supporting portion formed on the jacket.In order to fabricate the above-specified optical fiber, a preformed rod therefor is prepared by forming the inner wall of an silica glass tube with the jacket and the optical waveguide made of such materials as satisfy a relationship of c.sub.2 /a.gtoreq.200/(100-.gamma.)-1, wherein: letter .gamma. stands for the ellipticity of the outer circumference of the aforementioned jacket; letter c.sub.2 stands for the minor axis of an ellipse; and letter a stands for the radius of the circular optical waveguide, and by subsequently collapsing the aforementioned silica glass tube while having its internal pressure made lower than the atmospheric pressure by 1 to 20 mmH.sub.2 O.
摘要翻译： 具有强偏振平面可维护性的光纤由具有圆形芯和圆形包层的光波导构成，形成在光波导的外圆周上并具有椭圆形外周的外套和形成在外壳上的支撑部 。 为了制造上述规定的光纤，通过形成具有护套的石英玻璃管的内壁和由满足关系式c2 / a> / = 200的材料制成的光波导来制备预成型棒 /（100-gamma）-1，其中：字母gamma代表上述外套的外圆周的椭圆率; 字母c2表示椭圆的短轴; 字母a表示圆形光波导的半径，并且随后将其内压低于大气压的上述石英玻璃管塌缩1〜20mmH 2 O。
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公开(公告)号：US4426129A
公开(公告)日：1984-01-17
申请号：US223747
申请日：1981-01-09
IPC分类号： C03B37/012 , C03B37/018 , C03C13/04 , G02B6/10 , G02B5/14 , C03B19/00
CPC分类号： G02B6/105 , C03B37/01217 , C03B37/018 , C03B37/01861 , C03C13/045 , C03B2201/10 , C03B2203/10 , C03B2203/12 , C03B2203/22 , C03B2203/30
摘要： A glass layer is formed inside a silica glass tube and another glass layer having a refractive index higher than that of the abovementioned glass layer is formed on said glass layer. After these glass layers are formed, one end of the glass tube is collapsed. While the internal pressure of the glass tube is being reduced below the atmospheric pressure, the glass tube is caused to collapse by heating, thereby yielding a preform for an optical fiber. The optical fiber produced from this preform has the difference in the refractive indices of the two orthogonal major axes of at least 1.6.times.10.sup.-4 and maintains the linear polarization plane.
摘要翻译： 在石英玻璃管内形成玻璃层，在玻璃层上形成折射率高于上述玻璃层的玻璃层。 在形成这些玻璃层之后，玻璃管的一端收缩。 当玻璃管的内部压力降低到低于大气压力时，玻璃管通过加热而塌陷，从而产生用于光纤的预成型件。 由该预成型件制造的光纤具有至少1.6×10 -4的两个正交长轴的折射率差并保持线偏振面。
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公开(公告)号：US4483617A
公开(公告)日：1984-11-20
申请号：US354187
申请日：1982-03-03
CPC分类号： G01C19/721
摘要： In an optical gyroscope comprising a coil of an optical fiber having opposite ends on which linearly polarized input light beams are incident and from which output light beams are derived which create an interference pattern to be detected, the optical fiber has orthogonal principal axes along which the light beams propagate at a large propagation constant difference. The application of the linearly polarized input light beams to the opposite ends of the optical fiber coil is such that the polarization plane of the linearly polarized light beam coincides with the same principal axis on the opposite ends. Thus, polarization characteristics of the output light beam from the optical fiber coil becomes time invariant and the light paths for the two light beams coincide with each other. In particular, in order to minimize the influence of external disturbances, the optical fiber has a structure defined by.vertline.N.sub.x -N.sub.y .vertline.>.lambda./R.sub.owhere N.sub.x and N.sub.y are refractive indices of said optical fiber in directions of the orthogonal principal axes, R.sub.o is the radius of said optical fiber coil, and .lambda. is the wavelength of the light beam.
摘要翻译： 在包括光纤的线圈的光学陀螺仪中，所述光纤的线圈具有相对的端部，线偏振的输入光束入射，从中导出输出光束，产生要检测的干涉图案，所述光纤具有正交的主轴， 光束以大的传播常数差传播。 将线偏振输入光束施加到光纤线圈的相对端，使得线偏振光束的偏振平面与相对端的相同主轴重合。 因此，来自光纤线圈的输出光束的偏振特性变得不变，并且两个光束的光路彼此一致。 特别地，为了最小化外部干扰的影响，光纤具有由| Nx-Ny>λ/ Ro定义的结构，其中Nx和Ny是所述光纤在正交主轴的方向上的折射率，Ro 是所述光纤线圈的半径，λ是光束的波长。
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7.发明授权
公开(公告)号：US4406518A
公开(公告)日：1983-09-27
申请号：US236509
申请日：1981-02-20
IPC分类号： C03B37/018 , C03B37/025 , G02B6/00 , G02B6/02 , G02B6/028 , G02B5/172
CPC分类号： G02B6/03633 , C03B37/0253 , G02B6/0281 , C03B2203/22 , C03B2203/24 , G02B6/03611
摘要： A single-mode-transmission optical fiber comprises a core of a radius a having an arbitrary (non constant) refractive index distribution n(r) in the radial direction r, the index distribution being expressed by n.sup.2 (r)=n.sub.1.sup.2 {1-2.DELTA..sub.o f(r)}, and a cladding having a constant refractive index n.sub.2, the radius a of the core being: ##EQU1## In these expressions, n.sub.1 denotes a maximum refractive index of the core, .lambda. denotes a transmission light wavelength, ##EQU2## and a normalized frequency V is expressed by ##EQU3## Y is a solution Y in the case where X and Y are solutions of simultaneous equations: ##EQU4## of a function which is expressed by: ##EQU5##
摘要翻译： 单模传输光纤包括半径为a的芯，其径向r具有任意（非常数）折射率分布n（r），该折射率分布由n2（r）= n12 {1- 2的（r）}的折射率，以及具有恒定折射率n2的包层，芯的半径a为：在这些表达式中，n1表示芯的最大折射率，λ表示透射光波长， 并且归一化频率V由
表示，在X和Y是联立方程式的解的情况下，Y是解Y：由 表示的函数的 图像> + TR -
8.发明授权
公开(公告)号：US4581579A
公开(公告)日：1986-04-08
申请号：US545643
申请日：1983-10-26
申请人： Kazuyuki Nagatsuma , Hiroyoshi Matsumura , Tsuneo Suganuma , Norio Ohta , Keikichi Ando , Yuzuru Hosoe , Yutaka Sugita
发明人： Kazuyuki Nagatsuma , Hiroyoshi Matsumura , Tsuneo Suganuma , Norio Ohta , Keikichi Ando , Yuzuru Hosoe , Yutaka Sugita
CPC分类号： G01R33/0322
摘要： In a magnetic-field measuring apparatus having a Faraday rotation property, a medium having the Faraday rotation property includes at least one magnetic garnet thin film having a composition represented by a general formula of R.sub.3 (Fe.sub.5-x M.sub.x)O.sub.12 (where R is at least one element selected from a group consisting of La, Sm, Lu, Ca and Bi, or at least two elements selected from the group with Y being added thereto, M is at least one element selected from a group consisting of Ga, Ge, Al, Si, Sc, In and Cr, and a range of x is 0.ltoreq.x.ltoreq.1.5), and magnetized in a direction of light transmission, whereby an overall temperature characteristic of a ratio (4.pi.Ms/Ho) of a saturation flux density 4.pi.Ms to a collapse field Ho of a strip domain of the thin film is improved. The magnetic-field measuring apparatus offers a stable measurement of magnetic-field irrespective of a temperature change.
摘要翻译： 在具有法拉第旋转特性的磁场测量装置中，具有法拉第旋转特性的介质包括至少一种具有由通式R3（Fe5-xMx）O12表示的组成的磁性石榴石薄膜（其中R至少为 选自La，Sm，Lu，Ca和Bi中的一种元素，或选自添加有Y的基团中的至少两种元素，M为选自Ga，Ge，Al中的至少一种元素 ，Si，Sc，In和Cr，x的范围为0
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公开(公告)号：US4206968A
公开(公告)日：1980-06-10
申请号：US874420
申请日：1978-02-02
申请人： Tsuneo Suganuma , Gyozo Toda , Koji Ishida , Shin Satoh , Toshio Katsuyama , Mamoru Sugie
发明人： Tsuneo Suganuma , Gyozo Toda , Koji Ishida , Shin Satoh , Toshio Katsuyama , Mamoru Sugie
IPC分类号： C03B37/018 , C03C13/04 , G02B6/00 , G02B6/02 , G02B5/14
CPC分类号： C03C13/045 , C03B37/018 , C03B37/01861 , G02B6/02 , C03B2201/08 , C03B2201/28 , C03B2201/31 , C03B2203/22
摘要： A method for producing an optical fiber comprises (i) the step of depositing a barrier layer on the inner wall surface of a glass tube by the CVD (chemical vapor deposition) process, said barrier layer being capable of preventing the diffusion of impurities and being made of high-silica glass which has a refractive index that is substantially equal to that of the glass tube and which contains at least one substance for lowering the refractive index of silica and at least one substance for raising the refractive index of silica, (ii) the step of depositing a glass film of desired refractive index on the barrier layer by the CVD process, (iii) the step of heating and collapsing the resultant glass tube into a composite rod or the so-called optical fiber preform, and (iv) the step of heating and drawing said optical fiber preform into the optical fiber, whereby the optical fiber which has the impurity diffusion-preventing layer between the core and the outside glass layer can be easily produced.
摘要翻译： 制造光纤的方法包括：（i）通过CVD（化学气相沉积）工艺在玻璃管的内壁表面上沉积阻挡层的步骤，所述阻挡层能够防止杂质的扩散，并且 由高二氧化硅玻璃制成，其折射率基本上等于玻璃管的折射率，并且含有至少一种用于降低二氧化硅和至少一种用于提高二氧化硅的折射率的物质的物质（ii） ）通过CVD工艺在阻挡层上沉积所需折射率的玻璃膜的步骤，（iii）将所得玻璃管加热和塌缩成复合棒或所谓的光纤预制件的步骤，（iv ）将所述光纤预制件加热和拉制成光纤的步骤，由此在核心和外部玻璃层之间具有杂质扩散防止层的光纤可以容易地 引起
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公开(公告)号：US4323381A
公开(公告)日：1982-04-06
申请号：US169638
申请日：1980-07-17
申请人： Iwao Matsuyama , Kenzo Susa , Tsuneo Suganuma , Shin Satoh , Toshio Katsuyama , Hidehito Obayashi
发明人： Iwao Matsuyama , Kenzo Susa , Tsuneo Suganuma , Shin Satoh , Toshio Katsuyama , Hidehito Obayashi
IPC分类号： C03B8/02 , C03B37/014 , C03B37/016 , G02B6/00 , C03B5/16
CPC分类号： C03B37/016 , C03B2201/10 , Y10S65/901
摘要： A process for producing a mother rod useful for the production of an optical fiber which comprises hydrolyzing a silicon alkoxide to prepare a gel of a desired shape, and drying and sintering the gel to produce a block made of a silica glass. The process has the advantages that it is well adapted for mass-production, that a glass made of a B.sub.2 O.sub.3 --SiO.sub.2 system may be produced thereby and that a glass block of arbitrary shape may be readily produced.
摘要翻译： 一种制造用于生产光纤的母棒的方法，包括水解硅醇盐以制备所需形状的凝胶，以及干燥和烧结凝胶以制备由石英玻璃制成的块。 该方法的优点是适于批量生产，因此可以生产由B2O3-SiO2体系制成的玻璃，并且可以容易地生产任意形状的玻璃块。
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