专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明专利

JPS6146910A Fiber type optical demultiplexer and multiplexer 失效
标题翻译：光纤类型光纤解复用器和多路复用器
公开(公告)号：JPS6146910A
公开(公告)日：1986-03-07
申请号：JP16896384
申请日：1984-08-13
申请人： Nippon Telegr & Teleph Corp
发明人： OKAMOTO KATSUNARI , YOKOHAMA ITARU , NODA JUICHI , TAKADA KAZUMASA
IPC分类号： G02B6/024 , G02B6/28 , G02B6/287 , G02B6/293
摘要： PURPOSE:To obtain a fiber type optical demultiplexer and multiplexer which scarcely causes a loss, by constituting the whole by a fiber. CONSTITUTION:Middle parts of input/output birefringent fibers 25, 26, are coupled with a birefringent fiber ring 24 by couplers 27, 28, and as for the fiber ring 24, both end faces of a birefringent fiber are joined by a point 29. As for the birefringent fibers 25, 26, stress applying parts 33, 34 are provided at both sides of a core 31 in a clad 32. These fibers 25, 26 consists of a quartz glass as a main component, and the stress applying parts 33, 34 have a coefficient of thermal expansion which is different from a coefficient of thermal expansion of the clad 32. In the array direction of the stress applying parts 33, 34, when an axis passing through the center of the core 31, and an axis vertical to said axis are denoted as an (x) axis and a (y) axis, respectively, in a joint point of the fiber ring 24, said end faces are connected by making the directions of the (x) axes coincide.
摘要翻译：目的：通过光纤构成整体，获得几乎不会造成损耗的光纤类型的光解复用器和多路复用器。构成：输入/输出双折射光纤25,26的中间部分通过耦合器27,28与双折射光纤环24耦合，并且对于光纤环24，双折射光纤的两个端面通过点29连接。对于双折射纤维25,26，在包层32中的芯31的两侧设置有应力施加部33,34。这些纤维25,26由作为主要成分的石英玻璃构成，应力施加部33 34具有与包层32的热膨胀系数不同的热膨胀系数。在应力施加部33,34的排列方向上，当穿过芯31的中心的轴线和轴线垂直于所述轴的纤维环24的接合点分别表示为（x）轴和（y）轴，所述端面通过使（x）轴的方向一致而连接。

42. 发明专利

JPS5918921A Fiber type coupler and its manufacture 失效
标题翻译：光纤类型耦合器及其制造
公开(公告)号：JPS5918921A
公开(公告)日：1984-01-31
申请号：JP12842582
申请日：1982-07-23
申请人： Nippon Telegr & Teleph Corp
发明人： EDAHIRO TAKAO , HOSAKA TOSHITO , OKAMOTO KATSUNARI
IPC分类号： G02B6/28
CPC分类号： G02B6/2835 , G02B6/2826 , G02B6/283
摘要： PURPOSE:To form a small-sized optical fiber type coupler with low insertion loss by jointing side surfaces of a couple of semicylindrical optical fibers which have respectively one side surface of a clad part removed almost to a core part. CONSTITUTION:The clad part 12 which has a low refractive index and surrounds the core part 11 having a high refractive index is removed in parallel to a core axis almost to the core part 11. Nearly semicylindrical optical fibers 10 are used. Namely, said optical fibers 10 are jointed mutually with one over the other to length l in the side surfaces where the clad parts are removed. (The overlap part may be coated with a glass capillary.) In this case, said nearly semicylindrical optical fibers 10 are formed easily by polishing one side of a base material consisting of a core 16 and a clad 15 into a surface 17 parallel to the core center axis and then drawing the obtained nearly semicylindrical base material at about 2,100 deg.C.
摘要翻译：目的：通过连接一对半圆柱形光纤的侧表面，形成具有低插入损耗的小尺寸光纤型耦合器，其分别将包层部分的一个侧表面几乎除去到芯部。构成：具有低折射率并且围绕具有高折射率的芯部11的包层部分12平行于芯轴几乎除去到芯部分11.使用几乎半圆柱形的光纤10。也就是说，所述光纤10在除去包层部分的侧面中彼此相互连接成长度l。（重叠部分可以用玻璃毛细管涂覆）在这种情况下，通过将由芯16和包层15构成的基材的一侧抛光到平行于表面17的表面17中，容易地形成所述近似半圆柱形的光纤10。芯中心轴，然后在约2100度下拉制所获得的几乎半圆柱形基材。

43. 发明专利

JPS5918125A Manufacture of single-polarization single-mode optical fiber 失效
标题翻译：单极化单模光纤的制造
公开(公告)号：JPS5918125A
公开(公告)日：1984-01-30
申请号：JP12586382
申请日：1982-07-21
申请人： Nippon Telegr & Teleph Corp
发明人： EDAHIRO TAKAO , OKAMOTO KATSUNARI , NODA JIYUICHI
IPC分类号： C03B37/018 , C03B37/012 , G02B6/024
CPC分类号： C03B37/01217 , C03B2203/31
摘要： PURPOSE:To manufacture the titled optical fiber having high symmetricity, excellent polarization-maintaining characteristics, and low loss, by forming a hole to a porous matrix composed of a core and a clad, making the matrix transparent with heat, inserting a glass rod into the hole, and drawing the assembly. CONSTITUTION:A raw material which makes glass by reaction is subjected to e.g. flame hydrolysis reaction, etc., and the formed fine glass particles are deposited to the end or the circumference of a seed rod made of e.g. quartz glass to obtain a matrix composed of porous core 10 and clad 11. A part of the matrix is removed e.g. by an optical means using laser light to form a hole 13 corresponding to stress-imparting part. The matrix is made transparent by heating e.g. with an electric furnace, etc., optionally in combination with dehydration treatment, and a glass rod 18 having different thermal expansion coefficient from that of the clad 11 is inserted into the hole 13', and if necessary, the whole assembly is inserted into a jacket tube 19. The product is drawn to obtain the objective single-polarization single-mode optical fiber.
摘要翻译：目的：通过在由芯和包层构成的多孔基体上形成孔，制造具有高对称性，极好保持特性和低损耗的标题光纤，使基体透热，将玻璃棒插入孔，并画出装配。构成：通过反应制造玻璃的原料经受例如，火焰水解反应等，并且所形成的细玻璃颗粒沉积到由例如玻璃制成的种棒的末端或周围。石英玻璃，以获得由多孔芯10和包层11组成的基体。通过使用激光的光学装置形成对应于应力赋予部的孔13。通过加热使基质变得透明。与电炉等，任选地与脱水处理组合，并且具有与包层11的热膨胀系数不同的热膨胀系数的玻璃棒18插入孔13'中，如果需要，将整个组件插入夹套管19.产品被拉制以获得目标单极化单模光纤。

44. 发明专利

JPS58215604A Fiber type optical filter 失效
标题翻译：光纤型光滤波器
公开(公告)号：JPS58215604A
公开(公告)日：1983-12-15
申请号：JP9841082
申请日：1982-06-10
申请人： Nippon Telegr & Teleph Corp
发明人： OKAMOTO KATSUNARI , HOSAKA TOSHITO , EDAHIRO TAKAO
IPC分类号： G02B5/30 , G02B6/00 , G02B6/024 , G02B6/34
CPC分类号： G02B6/2706 , G02B6/274 , G02B6/2766
摘要： PURPOSE:To obtain a small-sized, high-performance optical filter by cascading single-polarization filters successively while the principal axis of the n-th fiber is arranged at a specific angle, and fiber type polarizers to both ends of the N units of single-polarization fibers respectively. CONSTITUTION:This optical fiber consists of the fiber type polarizers 1 and 2, single-polarization fibers 3-7, cores 8-14, metals 15 and 16, and stress parts 17-21 formed by adding B2O3-GeO2 to SiO2. the direction with the least optical loss in the fiber type polarizers is regarded as an X axis and the principal axis of the n-th single-polarization fiber is set to an angle thetan satisfying an equation during successive connections; and the fiber type polarizers are connectd to both ends of the N units of the single-polarization fibers respectively. Thus, the optical filter has high performance and is reduced in size.
摘要翻译：目的：通过连续单级串联单极化滤光片获得小型高性能滤光片，同时第n条光纤的主轴以特定的角度排列，并将N型光纤的两端的光纤型偏振器单极化纤维。构成：该光纤由纤维型偏振器1和2，单极化纤维3-7，芯8-14，金属15和16以及通过将B 2 O 3 -GeO 2添加到SiO 2形成的应力部17-21组成。将光纤型偏振器中光损耗最小的方向作为X轴，将第n单极化光纤的主轴设定为在连续连接期间满足等式的角度; 并且纤维型偏振器分别连接到单偏振光纤的N个单元的两端。因此，滤光器具有高性能并且尺寸减小。

45. 发明专利

JPS58199304A Optical switch 失效
标题翻译：光开关
公开(公告)号：JPS58199304A
公开(公告)日：1983-11-19
申请号：JP8160582
申请日：1982-05-17
申请人： Nippon Telegr & Teleph Corp
发明人： TERUI HIROSHI , KOBAYASHI MORIO , OKAMOTO KATSUNARI , EDAHIRO TAKAO
IPC分类号： G02B26/02 , G02B6/35
CPC分类号： G02B6/357 , G02B6/3502 , G02B6/3552 , G02B6/3558
摘要： PURPOSE:To obtain a simple optical switch which is small-sized and has a small number of parts, by constituting so that an optical fiber is deformed by electrostatic power and is coupled selectively with the other optical fiber. CONSTITUTION:A V-groove 4 is formed in parallel with an axis (y) on a conductive substrate 3, and the whole surface is covered with an insulating film 9. An optical fiber 2 whose clad surface is covered with an insulating thin film 10 is fixed in the V-groove 4. An optical fiber 1 whose clad surface is covered with a conductive film 8 is fixed by a jig 7 in the vertically upper part along the V- groove 4. When voltage is impressed between the substrate 3 and the conductive film 8 of the optical fiber 1 through a changeover switch, the optical fiber 1 is attracted and fixed in the V-groove 4 by electrostatic attraction and is connected with the optical fiber 2. Since an electromagnet is not used, a simple optical switch which is small-sized and has a small number of parts is obtained.
摘要翻译：目的：为了获得小型化并且具有少量部件的简单光开关，通过构成使得光纤被静电力变形并与另一光纤选择性地耦合。构成：在导电性基板3上与轴（y）平行地形成V形槽4，整个表面被绝缘膜9覆盖。光纤2的覆盖面被绝缘薄膜10覆盖被固定在V形槽4中。由导电膜8覆盖其包层表面的光纤1通过夹具7沿着V形槽4在垂直上部固定。当衬底3和光纤1的导电膜8通过转换开关，光纤1通过静电吸引而被吸引并固定在V形槽4中，并且与光纤2连接。由于不使用电磁体，因此简单的光学获得小型并且具有少量部件的开关。

46. 发明专利

JPS58195803A Matrix type optical switch 失效
标题翻译：矩阵型光开关
公开(公告)号：JPS58195803A
公开(公告)日：1983-11-15
申请号：JP7755682
申请日：1982-05-11
申请人： Nippon Telegr & Teleph Corp
发明人： OKAMOTO KATSUNARI , HOSAKA TOSHITO , EDAHIRO TAKAO
IPC分类号： H04Q3/52 , G02B5/00 , G02B6/024 , G02B26/08
摘要： PURPOSE:To obtain a matrix optical switch of low loss and low crosstalk by combining single polarization fibers for forming 1/2 wavelength plates and fiber type polarizers of which the respective lengths satisfy prescribed conditions. CONSTITUTION:The intersected points of the matrix of N lines and M lines formed of inlet optical fibers 11 connected to respectively 1 line M rows of branch circuits and exit optical fibers 14 connected to N lines 1 row of branch circuits are constituted of single polarization fibers 12 of the 1/2 wavelength plates of which the respective lengths (l) satisfy the conditions of the equation I and fiber type polarizers 13 of which the carrying axes coincide with said fibers. If the fibers 12 are turned 45 deg., the directions of the linear polarization of the incident light and the exit light are made in the same directions having 90 deg. from each other, so that the incident light and the exit light are switched without space release. The matrix optical switch of low loss and low crosstalk suited for a coherent optical communication system is thus obtained. In the equation, betas, betaf are the phase constants of the two polarization modes of the single polarization fibers and (m) is an integer.
摘要翻译：目的：通过组合用于形成1/2波长板的单极化光纤和各自长度满足规定条件的光纤类型偏振器，获得低损耗和低串扰的矩阵光开关。构成：与分别连接到N行1行分支电路的1行M行分支电路和出口光纤14的入口光纤11形成的N行矩阵和M行的矩阵的相交点由单偏振光纤其1/2波长板中的12个，其长度（l）满足方程式I的条件，其中承载轴线与所述纤维重合的纤维型偏振器13。如果纤维12旋转45度，则入射光和出射光的线性偏振方向在90度的相同方向上制成。使得入射光和出射光在没有空间释放的情况下被切换。因此获得了适用于相干光通信系统的低损耗和低串扰的矩阵光开关。在等式中，betas，betaf是单偏振光纤的两种偏振模式的相位常数，（m）是整数。

47. 发明专利

JPS5767037A Manufacture of base material for single-mode optical fiber 失效
标题翻译：单模光纤基材的制造
公开(公告)号：JPS5767037A
公开(公告)日：1982-04-23
申请号：JP13866680
申请日：1980-10-06
申请人： Nippon Telegr & Teleph Corp
发明人： TOMARU AKIRA , YASU MITSUHO , SHIBATA NORIYOSHI , KAWACHI MASAO , OKAMOTO KATSUNARI , EDAHIRO TAKAO
IPC分类号： C03B37/018 , C03B37/014 , G02B6/00
CPC分类号： C03B37/0142 , C03B37/01446 , C03B2201/12 , C03B2201/28 , C03B2201/31 , C03B2203/22 , C03B2207/50
摘要： PURPOSE:To obtain the titled base material with low loss and low dispersion over a wide wavelength region by forming a porous glass layer contg. fluorine for the 1st clad and a porous glass layer for the 2nd clad around a porous glass body for a core and converting them into transparent glass by heating. CONSTITUTION:SiCl2 and GeCl4 are fed into a torch 1 for synthesizing fine glass particles for a core together with a carrier gas such as He, SiCl2, POCl3 and SF6 are fed into a torch 2 for synthesizing fine glass particles for the 1st clad together with a carrier gas, and SiCl4 is fed into a torch 3 for synthesizing fine glass particles for the 2nd clad together with a carrier gas. They are subjected to flame hydrolysis to form fine glass particles, and a porous glass body is grown from the particles. The body is then heated to 1,500 deg.C in an atmosphere of He and Cl2 and coverted into transparent glass by dehydration. Thus, a base material for an optical fiber with a Q type refractive index distribution can be manufactured, and this optical fiber has the advantage of low-dispersion transmission in a wide wavelength region.
摘要翻译：目的：通过形成多孔玻璃层来获得宽波长区域的低损耗和低分散性的标题基材。用于第一包层的氟和用于第二包层的多孔玻璃层包围在用于芯的多孔玻璃体周围，并通过加热将其转换成透明玻璃。构成：将SiCl 2和GeCl 4进料到用于将诸如He，SiCl 2，POCl 3和SF 6之类的载气的芯的细玻璃颗粒合成到焊炬1中，将其用于合成用于第一包层的细玻璃颗粒的焊炬2以及载气和SiCl4供入到用于合成用于第二包层的细玻璃颗粒与载气的焊炬3中。对它们进行火焰水解以形成细微的玻璃颗粒，并且从颗粒生长多孔玻璃体。然后将人体在He和Cl2气氛中加热至1500摄氏度，并通过脱水将其覆盖成透明玻璃。因此，可以制造具有Q型折射率分布的光纤的基材，并且该光纤具有在宽波长区域中低色散透射的优点。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式