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41. 发明专利

JPS58223102A Optical fiber conserving plane of polarization and its manufacture 失效
标题翻译：光纤保护极化平面及其制造
公开(公告)号：JPS58223102A
公开(公告)日：1983-12-24
申请号：JP10643882
申请日：1982-06-21
申请人： Hitachi Cable Ltd
发明人： NIIZAWA MASAHARU , TOKUNAGA TOSHIHIDE , KAJIOKA HIROSHI
IPC分类号： C03B37/012 , C03B37/018 , C03B37/026 , G02B6/02 , G02B6/024 , G02B6/10
CPC分类号： G02B6/105 , C03B37/01217 , C03B37/01861 , C03B37/01892 , C03B37/026 , C03B2201/10 , C03B2201/31 , C03B2203/30 , G02B6/02
摘要： PURPOSE:To attenuate unnecessary light shifting to the other optical axis speedily and to obtain a large quenching rate by providing a light absorbing part which contains transition elements diffused onto either one of characteristic axes of polarization differing in light propagation constant to the outer circumference of a jacket enclosing a core. CONSTITUTION:A couple of grooves 2 are formed at facing positions in the internal surface of a quartz pipe support 1; and quartz wires 3 containing a large quantity of a transition metal such as Fe, Cu, and Pd are inserted into the grooves 2 and an SiO2 glass film is deposited in the support 1 to a specific thickness and heated to form an intermediate collapse. Then, the elliptic jacket 5 containing much B2O3, a clad 6 of SiO2, and the core 1 in the form of an SiO2 layer containing GeO2 are deposited successively in the collapse and while the pressure in the collapse is reduced, a base material made solid by being heated is drawn to obtain a polarization-plane conserving optical fiber which has light absorving parts 4a and 4b of the quartz wire 3 on the short axis of the jeacket 5. Then, a polarized signal coincident with the long-axis direction of the jacket 5 is sent as a less-noise polarized signal of good quality because the polarization in the short-axis direction of the jacekt 5 due to variation in external stress of the optical fiber, etc., is absorbed.
摘要翻译：目的：为了减少不必要的光快速移动到另一个光轴，并通过提供一种光吸收部分来获得大的淬灭速率，该光吸收部分包含扩散到光传播常数不同的偏振特性轴之一上的过渡元素，外套包围核心。构成：在石英管支撑件1的内表面的相对位置处形成有一对槽2; 将包含大量过渡金属如Fe，Cu和Pd的石英线3插入到槽2中，并将SiO 2玻璃膜沉积在支撑体1中，使其具有特定的厚度并加热形成中间的塌陷。然后，包含大量B 2 O 3，SiO 2的包层6的椭圆形护套5和含有GeO 2的SiO 2层形式的芯1依次沉积在塌陷中，并且当塌陷中的压力减小时，基材固体通过加热被拉伸以获得在空隙5的短轴上具有石英线3的吸光部分4a和4b的偏振平面保存光纤。然后，与沿着凹部5的长轴方向一致的偏振信号夹套5作为质量较差的低噪声极化信号发送，因为吸收了由于光纤的外部应力的变化而引起的端子5的短轴方向的偏振。

42. 发明专利

JPS58216964A Apparatus for detecting generation of shock current 失效
标题翻译：用于检测电流产生的装置
公开(公告)号：JPS58216964A
公开(公告)日：1983-12-16
申请号：JP10106282
申请日：1982-06-11
申请人： Hitachi Cable Ltd
发明人： KAJIOKA HIROSHI
IPC分类号： G01R15/24 , G01R15/22 , G01R31/08
CPC分类号： G01R15/22
摘要： PURPOSE:To make it possible to detect a shock current generating position without using a power source, by a method wherein a shock current is converted to laser beams by semiconductor laser and light delayed by optical fibers different in a length and direct light are combined to be outputted to measure the time difference of both of them. CONSTITUTION:A shock current 1 is inputted to semiconductive laser 3 through a protective circuit 2 to be converted to laser beams which are in turn supplied to a polarization beam splitter 6 through a first micro-lens 4 and a polarizing plate 5. Separated one output light is delayed by a second micro-lens 8, oval jacket shaped polarizing plane preserving optical fibers 9 and a third micro-lens 10 to be converted to output light 11 which is in turn outputted along with the other output light 7. In this constitution, when the lengths of the polarizing plane preserving optical fibers 9 are changed at every shock current generation detecting apparatus, because the output light 7 and the output light 11 are different in a time interval, it is known where the falling of a thunderbolt occurs.
摘要翻译：目的：为了能够在不使用电源的情况下检测冲击电流产生位置，通过利用半导体激光将冲击电流转换成激光束并将由长度不同的光纤延迟的光和直接光组合到一起的方法输出以测量它们的时差。构成：冲击电流1通过保护电路2输入到半导体激光器3，以转换成激光束，激光束又通过第一微透镜4和偏振片5提供给偏振分束器6.分离一个输出光被第二微透镜8，保持光纤9的椭圆形护套形偏振面9和第三微透镜10延迟，以转换成输出光11，输出光11又与另一个输出光7一起输出。在该结构中当由于输出光7和输出光11在时间间隔不同时，当在每个冲击电流产生检测装置中改变偏振平面保留光纤9的长度时，就知道发生霹雳的坠落。

43. 发明专利

JPS58205102A By-pass switch using polarization plane conservative optical fiber 失效
标题翻译：使用极化平面保护光纤的旁路开关
公开(公告)号：JPS58205102A
公开(公告)日：1983-11-30
申请号：JP8772182
申请日：1982-05-24
申请人： Hitachi Cable Ltd
发明人： IIZUKA TOSHIO , KAJIOKA HIROSHI
IPC分类号： G02B26/08 , G02B6/34
CPC分类号： G02B6/34
摘要： PURPOSE:To change easily and securely optical transmission lines by arranging polarization plane conservative optical fibers in four directions from a polarization beam splitter, and poviding a means which turns the plane of polarization of light emitted from an incident-side optical fiber by 90 degrees. CONSTITUTION:Light which is emitted from the incidence-side optical fiber 1 and polarized in the paper surface (on (x) axis) enters a projection-side optical fiber 2 through a collimator lens 7a, half-wavelength plate 9, polarization beam splitter 8,and collimator lens 7c, and then transmitted through the fiber to be projected. When the projected light of the optical fiber 1 is polarized in the surface[on (y) axis]perpendicular to the paper surface, it is reflected by the polarization beam splitter 8 and projected through a collimator lens (d) and a transmission-side optical fiber 3. Optical transmission lines of the projection optical fiber 2 and transmission-side optical fiber 3 are changed easily and securely only by turning the half-wavelength plate 9 by 45 degrees.
摘要翻译：目的：通过在偏振光分束器的四个方向布置偏振平面保守光纤，并使从入射侧光纤发射的光的偏振平面转动90度的方式来改变光传输线的容易和稳定。构成：从入射侧光纤1发射并在纸面（on（x）轴上）偏振的光通过准直透镜7a，半波片9，偏振光束分离器入射到投影侧光纤2 8和准直透镜7c，然后透射通过光纤投影。当光纤1的投射光在垂直于纸面的表面[on（y）轴]上被偏振时，被偏振分束器8反射并通过准直透镜（d）和透射侧光纤3.仅通过将半波片9转动45度，可以容易且可靠地改变投影光纤2和透射侧光纤3的光传输线。

44. 发明专利

JPS58200201A Coated optical fiber 失效
标题翻译：涂层光纤
公开(公告)号：JPS58200201A
公开(公告)日：1983-11-21
申请号：JP8455782
申请日：1982-05-19
申请人： Hitachi Cable Ltd
发明人： ITOU RIYOUICHI , SHIMAZAKI YUKIO , KAJIOKA HIROSHI
IPC分类号： C03C25/10 , G02B6/44
CPC分类号： C03C25/106
摘要： PURPOSE:To increase the production speed and to obtain a long pot life, high flexibility and a favorable adhesive property by coating a glass fiber for optical transmission with a photosetting composition contg. addition polymer type liq. silicone rubber as a principal component and by irradiating ultraviolet rays to set the composition. CONSTITUTION:The surface of a glass fiber for optical transmission is coated with a photosetting composition contg. addition polymer type liq. silicone rubber as a principal component, and ultraviolet rays are irradiated to set the composition. The addition polymer type liq. silicone rubber is addition polymer type RTV silicone rubber, liq. silicone rubber or the like. Benzophenone, benzoin or the like is contained in the composition as a photosensitizer together with a colorant, a catalyst, an adhesion accelerator, a smoothness providing agent, a filler, an antistatic agent, a polymn. inhibitor, etc. The photosetting composition is prepared by uniformly mixing the silicone rubber with said components.
摘要翻译：目的：通过用光固化组合物涂覆光学透射玻璃纤维，提高生产速度并获得长使用期限，高柔性和良好的粘合性能。加成型聚合物型硅橡胶作为主要成分，并通过照射紫外线来设定组合物。构成：用于光学传输的玻璃纤维的表面涂有光固化组合物加成型聚合物型硅橡胶为主要成分，并照射紫外线以设定组合物。加成聚合物型硅橡胶是加成聚合物型RTV硅橡胶。硅橡胶等。作为光敏剂的组合物中的二苯甲酮，苯偶姻等与着色剂，催化剂，粘合促进剂，平滑性赋予剂，填料，抗静电剂，聚合物一起含有。抑制剂等。通过将硅橡胶与所述组分均匀混合来制备光固化组合物。

45. 发明专利

JPS58198714A Optical fiber laser gyro 失效
标题翻译：光纤激光陀螺仪
公开(公告)号：JPS58198714A
公开(公告)日：1983-11-18
申请号：JP8125082
申请日：1982-05-14
申请人： Hitachi Cable Ltd
发明人： KAJIOKA HIROSHI
IPC分类号： H01S3/083 , G01C19/64 , G01C19/72
CPC分类号： G01C19/72
摘要： PURPOSE:To improve the detection sensitivity, by branching a linearly polarized light to a transmitted light and a reflected light and allowing these lights to pass through a coil-shaped polarization plane preserving optical fiber and detecting the phase difference between both lights through a 1/4 wavelength plate and a polarizing beam splitter. CONSTITUTION:The light from a laser light source 1 is linearly polarized completely by a polarizer 2 and has the direction adjusted optionally by a 1/2 wavelength plate 3 and is branched by a beam splitter 4. When the light is branched to the transmitted light and the reflected light by the beam splitter 4, one is incident to one intrinsic polarization axis from one end of a coil-shaped polarization plane preserving optical fiber 6 through a Farrady element 5, and the other is incident to said intrinsic polarization axis from the other end of said fiber 6 without passing the element 5. Lights propagated to the polarization plane preserving optical fiber are led to a 1/4 wavelength plate 7 by the beam splitter 4. The light emitted from the 1/4 wavelength plate 7 is led to a polarizing beam splitter 8, and two outputs of the polarizing beam splitter 8 are amplified differentially.
摘要翻译：目的：为了提高检测灵敏度，通过将线性偏振光分支到透射光和反射光，并允许这些光通过保持光纤的线圈形偏振平面，并通过1 / 4波长板和偏振分束器。构成：来自激光光源1的光被偏振器2完全线性偏振，并且具有由1/2波片3可选地调节的方向，并被分束器4分支。当光被分支到透射光和分束器4的反射光，一个通过法拉第元件5从一个线圈状偏振面保持光纤6的一端入射到一个固有偏振轴，另一个从入射到固有极化轴所述光纤6的另一端不通过元件5.传播到偏振面的保留光纤的光被分束器4引导到1/4波长板7.从1/4波长板7发射的光被引导偏振分束器8，并且偏振分束器8的两个输出被差分地放大。

46. 发明专利

JPS58196414A Optical fiber laser gyroscope 失效
标题翻译：光纤激光陀螺仪
公开(公告)号：JPS58196414A
公开(公告)日：1983-11-15
申请号：JP7896482
申请日：1982-05-11
申请人： Hitachi Cable Ltd
发明人： KAJIOKA HIROSHI
IPC分类号： H01S3/083 , G01C19/64 , G01C19/72
CPC分类号： G01C19/72
摘要： PURPOSE:To make it possible to detect rotating directions, by making output light circular polarization once by a 1/4 wavelength plate, thereby changing the output of a differential amplifier into a positive or negative value depending on the rotating directions. CONSTITUTION:A half of laser light from a light source 1 passes a BS (beam splitter) 3. The S polarization component and P polarization component of the linearly polarized light in the bearing of 45 degrees are reflected by and transmitted through a PBS (polarized light beam splitter) 5. When a plane of polarization preserved optical fiber coil 9 is not rotated, the phase difference between the transmitted light in the counterclockwise direction and the transmitted light in the clockwise direction is equal, and the light taken out of the BS3 is linearly polarized. When a 1/4 wavel length plate 10 is placed at the bearing of 45 degrees, the output light becomes the circularly polarized light. In a PBS11, the polarized component is taken out, the output of a photoelectric transducer 12 is guided to a differential amplifier 13, and the output is observed. When the plane of the polarization preserved optical fiber coil 9 is not rotated, the output is zero. When the coil is rotated right and left, the output having the positive or negative polarity appears. By integrating the differential amplifier 13, the direction from the initial state can be found.
摘要翻译：目的：为了能够通过1/4波长板的输出光圆偏振一次来检测旋转方向，从而根据旋转方向将差分放大器的输出变为正值或负值。构成：来自光源1的激光的一半通过BS（分束器）3。45度轴承中的线偏振光的S偏振分量和P偏振分量被PBS（极化光束分离器）5.当偏光保持光纤线圈9不旋转时，逆时针方向的透射光与顺时针方向的透射光之间的相位差相等，从BS3中取出的光是线偏振的。当1/4波形长度板10放置在45度的轴承时，输出光成为圆偏振光。在PBS11中，取出偏振分量，将光电变换器12的输出引导到差分放大器13，观察输出。当偏振保持光纤线圈9的平面不旋转时，输出为零。当线圈左右旋转时，出现正极性或负极性的输出。通过积分差分放大器13，可以找到从初始状态的方向。

47. 发明专利

JPS6148715A Optical fiber gyro 失效
标题翻译：光纤陀螺
公开(公告)号：JPS6148715A
公开(公告)日：1986-03-10
申请号：JP17204784
申请日：1984-08-17
申请人： Hitachi Cable Ltd , Tech Res & Dev Inst Of Japan Def Agency
发明人： TAKAGUCHI TAKASHI , ISHIBASHI AKIHIRO , MIZUNO RYO , KAJIOKA HIROSHI
IPC分类号： G01C19/00 , G01C19/64 , G01C19/72 , G02B6/00 , G02B6/024 , H01S5/00
摘要： PURPOSE:To improve detection sensitivity and obtain high resolution by using an elliptic jacket type polarization plane maintaining optical fiber which has an elliptic core as an optical fiber, and using the polarization mode in the long- axis direction of the ellipse for the propagation of light energy. CONSTITUTION:The optical fiber gyro uses the elliptic jacket type SP optical fiber 8 whose core is also elliptic. In this case, CW light enters the optical fiber 8 in the long-axis direction as linear polarized light and CCW light also enters the optical fiber 8 in the long-axis direction; and they propagate in the optical fiber 8 and are passed through or reflected by a polarization beam splitter 5 by P polarization and S polarization to travel to a half-mirror 4, so that they are reflected by the half-mirror 4 to travel to a quarter-wavelength plate 9 and a polarization beam splitter 10. The quarter-wavelength plate 9 is installed between the CW light and CCW light so that a 90 deg. phase bias is applied. Consequently, two light outputs are obtained from the beam splitter 10 and amplified operationally to obtain excellent detection sensitivity and high resolution.
摘要翻译：目的：通过使用具有椭圆形芯作为光纤的椭圆形护套型偏振平面保持光纤并利用椭圆长轴方向的偏振模式来提高检测灵敏度并获得高分辨率，用于传播光能源。构成：光纤陀螺采用椭圆形外套型SP光纤8，其核心也是椭圆形。在这种情况下，CW光作为线偏振光以长轴方向进入光纤8，并且CCW光也沿长轴方向进入光纤8; 并且它们在光纤8中传播，并且通过P偏振和S偏振通过偏振分束器5或反射到半反射镜4，使得它们被半透镜4反射以行进到四分之一波长板9和偏振分束器10.四分之一波长板9安装在CW光和CCW光之间，使得90度。施加相位偏置。因此，从分束器10获得两个光输出并且被可操作地放大以获得优异的检测灵敏度和高分辨率。

48. 发明专利

JPS6145949A Testing device for mode scrambler 失效
标题翻译：用于模式扫描器的测试装置
公开(公告)号：JPS6145949A
公开(公告)日：1986-03-06
申请号：JP16865484
申请日：1984-08-10
申请人： Hitachi Cable Ltd
发明人： KAJIOKA HIROSHI
IPC分类号： G01M11/02 , G01M11/00 , G02B6/00
CPC分类号： G01M11/31
摘要： PURPOSE:To measure transmission characteristics with good reproducibility by calculating the difference between projection light from a pinhole when the diameter of the pinhole is (r) and that when (r+DELTAr) while rotatig a turntable, and obtaining a far visual field image. CONSTITUTION:The calculation of the far visual field image (FEP) of light projected frm an annular fine part 4 of a graded type optical fiber 1 between the radii (r) and (r+DELTAr) of the core 2 is carried out on the basis of the difference between the projection light when the diameter of the pinhole 6 is (r) and that when (r+DELTAr). Then, this is measured and computed while the turntable 7 is rotated successively to obtain FEP11. Then, such a mode scrambler that FEP11 of the annular fine part with constant width is equal is used. Consequently, the reproducibility of measurements of transmission band width and light loss is obtained.
摘要翻译：目的：通过计算当针孔直径为（r）时的针孔投射光与转盘之间（r + DELTAr）旋转时获得远视野图像之间的差异，测量具有良好重现性的透射特性。构成：在光纤2的半径（r）和（r + DELTAr）之间的渐变型光纤1的环形微细部分4的光投射frm的远视场图像（FEP）的计算在当针孔6的直径为（r）时和当（r + DELTAr）时的投影光之间的差异的基础。然后，在转盘7连续旋转的同时测量和计算得到FEP11。然后，使用具有恒定宽度的环形细部的FEP11相等的模式扰频器。因此，获得了传输带宽和光损失的测量的再现性。

49. 发明专利

JPS60211406A Radiation-resisting image fiber 失效
标题翻译：辐射电阻图像光纤
公开(公告)号：JPS60211406A
公开(公告)日：1985-10-23
申请号：JP6727484
申请日：1984-04-04
申请人： Hitachi Cable Ltd
发明人： KAJIOKA HIROSHI
IPC分类号： G02B6/04 , G02B6/06 , G02B6/44
CPC分类号： G02B6/06 , G02B6/443
摘要： PURPOSE:To improve the radiation-resistance characteristics to transmission loss and to perform long-distance transmission by specifying the thickness of the clad of the image fiber above some value, and reducing the quantity of attenuation of the clad. CONSTITUTION:Plural unit optical fibers 4 which consist of three layers, i.e. core 1, clad 2, and support 3 are bundled together to constitute the radiation-resisting image fiber. The thickness of the clad 2 is set to >=3mum. Then alphaCL>>alphaCO, where alphaCO is the quantity of attenuation of the core during irradiation and alphaCL is the quantity of attenuation of the clad 2. Further, when transmission distance is 1(m), alphaCL approx.
摘要翻译：目的：为了提高传输损耗的辐射电阻特性，并通过将图像光纤的包层的厚度规定在一定值以上，并减少包层的衰减量，进行长距离传输。构成：将由三层构成的多层单元光纤4，即芯1，包层2和支撑体3捆绑在一起构成耐辐射图像光纤。包层2的厚度设定为>3μm。然后alphaCL >> alphaCO，其中αCO是照射期间核心的衰减量，αCL是包层2的衰减量。此外，当传输距离为1（m）时，αCL约为<10alpha / 1（dB / m），其中α（dB）是图像光纤所需的传输损耗的上限。

50. 发明专利

JPS59122973A Polarization plane maintaining type optical fiber type magnetic field sensor 失效
标题翻译：偏振平面维护型光纤型磁场传感器
公开(公告)号：JPS59122973A
公开(公告)日：1984-07-16
申请号：JP14531382
申请日：1982-08-21
申请人： Hitachi Cable Ltd
发明人： IIZUKA TOSHIO , KAJIOKA HIROSHI
IPC分类号： G01R33/032 , G02B6/00 , G02B6/02
CPC分类号： G01R33/0322
摘要： PURPOSE:To enable measurement even if an atmosphere to be measured reaches a high temp. of 110 deg.C or more, by fixing polarization plane maintaining optical fibers opposed so as to interpose a Faraday rotary element therebetween in such a state that the end surface polarization axes of said optical fibers are relatively shifted 45 deg.. CONSTITUTION:Light from a light source 101 such as a laser beam source is incident to a polarization plane maintaining optical fiber 103 through a polarization element 105 in order to raise liner polarizability and the emitted light of the polarization plane maintaining optical fiber 103 is incident to a Faraday rotary element, for example, Y1G106. When the intensity of a magnetic field is H=0, the polarization plane maintaining optical fiber 103 of a light receiving side is fixed so that the polarization axis of the polarization plane maintaining optical fiber 103 comes to about 45 deg. with respect to the polarization plane of the emitted light from the Faraday rotary element 106. By this constitution, a polarization element or a light detecting element is not used in the vicinity of the Faraday rotary element and, therefore, measurement is enabled even if an atmosphere to be measured reaches a high temp. of 110 deg.C or more.
摘要翻译：目的：即使要测量的气氛达到高温，也能进行测量。在110℃以上的情况下，通过将保持光的光纤固定在相对的偏振平面上，以便在所述光纤的端面偏振轴相对偏移45度的状态之间插入法拉第旋转元件。构成：来自诸如激光束源的光源101通过偏振元件105入射到维持光纤103的偏振面上，以提高衬垫极化率，并且偏振面维持光纤103的发射光入射到法拉第旋转元件，例如，Y1G106。当磁场的强度为H = 0时，光接收侧的偏振面保持光纤103固定，使得偏振面维持光纤103的偏振轴达到约45度。相对于来自法拉第旋转元件106的发射光的偏振面。通过这种结构，在法拉第旋转元件附近不使用偏振元件或光检测元件，因此即使要测量的气氛达到高温为110℃以上。

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