Optical resonant cavity filters
    1.
    发明授权
    Optical resonant cavity filters 失效
    光谐振腔滤波器

    公开(公告)号:US4720160A

    公开(公告)日:1988-01-19

    申请号:US625543

    申请日:1984-06-28

    Abstract: A wavelength filtering device and system in which an optical resonant cavity is laterally coupled to a trunk waveguide carrying a broad range of wavelengths in the optical spectrum. The filtering cavities may be linear optical fiber segments or fiber segments closed at their ends in the shape of a loop. The devices may include single or multiple optical cavities or hybrid filtering utilizing both dispersive and resonant functions.

    Abstract translation: 一种波长滤波装置和系统,其中光学谐振腔横向耦合到在光谱中携带宽范围波长的中继波导。 过滤腔可以是在其端部以环形形式封闭的线性光纤段或纤维段。 这些器件可以包括利用色散和谐振功能的单个或多个光学腔或混合滤波。

    Adscititious resonator
    2.
    发明授权
    Adscititious resonator 失效
    独立谐振器

    公开(公告)号:US4676583A

    公开(公告)日:1987-06-30

    申请号:US729647

    申请日:1985-05-02

    Abstract: An optical fiber structure having resonant characteristics useful for coupling to an optical transmission line for removing selected wavelengths of light energy includes a light guiding structure, such as an optical fiber waveguide, which conditionally operates as a resonant cavity responsive to resonance of at least one other resonant cavity. In one embodiment, an extrinsically defined or adscititious reflectance is formed in the waveguide segment by laterally coupling an etalon cavity to the waveguide segment. In another embodiment, the waveguide segment is coupled to one or more resonant loops to form a conditional resonant loop cavity which includes the other loops. The resonant wavelength spacing for the conditional cavity and its cooperating resonant cavity are made different from one another with only one wavelength coresonantly supported in both cavities. In operation, the structure is coupled to a multi-channel optical transmission line for selectively removing a portion of the energy of a desired channel by resonating the desired wavelength in both the conditional cavity and its cooperating resonant cavity. Additionally, an active gain material can be provided in the conditional cavity and pumped by a pumping source to increase the gain of the desired wavelength.

    Abstract translation: 具有用于耦合到用于去除所选择的波长的光能的光传输线的共振特性的光纤结构包括诸如光纤波导的导光结构,其有条件地作为响应于至少另一个的谐振的谐振腔而起作用 谐振腔。 在一个实施例中,通过将标准具腔横向耦合到波导段而在波导段中形成外部定义的或不规则的反射率。 在另一个实施例中,波导段耦合到一个或多个谐振回路以形成包括其它回路的条件谐振回路腔。 使条件腔及其配合谐振腔的谐振波长间隔彼此不同,在两个空腔中只有一个波长被中断地支撑。 在操作中,该结构耦合到多通道光传输线路,用于通过在条件空腔及其协作谐振腔中谐振期望的波长来选择性地去除期望信道的一部分能量。 此外,可以在条件腔中提供有源增益材料并由泵浦源泵浦以增加所需波长的增益。

    Method for fabricating optical fiber preforms
    3.
    发明授权
    Method for fabricating optical fiber preforms 失效
    制造光纤预制棒的方法

    公开(公告)号:US4579571A

    公开(公告)日:1986-04-01

    申请号:US658504

    申请日:1984-10-09

    Abstract: A method for fabricating preforms for drawing into single mode optical fibers having core and cladding doped with different amounts fluorine. A pure fused silica start rod is first coated with a layer of soot which is then dehydrated, doped with a first level of fluorine, and then consolidated. This structure, which is an intermediate preform, is then drawn down until its area weighted average index of refraction is such that it would perform as a core in a fiber. If not, it is recoated and drawn down further until it will behave as a core upon further reduction in size. The intermediate preform is then recoated with another layer doped with a higher concentration of fluorine so that it will act as a cladding layer over the first fluorinated layer whose index is higher because of a lower concentration of fluorine. This final structure serves as a preform from which the desired fiber can be drawn.

    Abstract translation: 一种用于制造用于拉制具有掺杂有不同量氟的芯和包层的单模光纤的预成型件的方法。 首先将纯熔融二氧化硅起始棒涂覆有一层烟灰,然后将其脱水,掺杂一级氟,然后固化。 然后将该结构作为中间预型件,直到其面积加权平均折射率使得其在纤维中作为核心。 如果没有,它将重新涂覆并进一步下降,直到它进一步减小尺寸后才能作为核心。 然后用另一个掺杂较高浓度氟的层重新涂覆中间预成型体,以使其作为第一氟化层上的包覆层,其指数较高,因为氟的浓度较低。 该最终结构用作可以从其中拉出所需纤维的预成型件。

    Electronic still camera tube
    4.
    发明授权
    Electronic still camera tube 失效
    电子静物照相机管

    公开(公告)号:US4837631A

    公开(公告)日:1989-06-06

    申请号:US191862

    申请日:1988-05-09

    CPC classification number: H04N5/30 H01J31/26

    Abstract: An electronic camera tube includes a transparent envelope enclosing an evacuated cavity, a photocathode layer on a first internal surface of the envelope and an array of storage electrodes on a second internal surface of the envelope. The first and second surfaces are parallel and closely spaced. The photocathode layer emits electrons in response to an incident light intensity pattern. The storage electrodes in the array receive the electrons from the photocathode layer and emit secondary electrons, thereby accumulating a charge pattern representing the light intensity pattern. The camera tube further includes a readout device associated with each storage electrode for reading out the charge pattern during a readout phase. The readout devices operate by generating a readout current through an evacuated region adjacent to each storage electrode. Each readout current is a function of the charge accumulated on the adjacent storage electrode during the exposure phase. A number of different readout techniques can be utilized.

    Abstract translation: 电子照相机管包括封闭真空腔的透明封套,在外壳的第一内表面上的光电阴极层和在封套的第二内表面上的一组存储电极。 第一和第二表面是平行和紧密间隔的。 光电阴极层响应于入射光强度图案发射电子。 阵列中的存储电极接收来自光电阴极层的电子并发射二次电子,从而累积表示光强度图案的电荷图案。 相机管还包括与每个存储电极相关联的读出装置,用于在读出阶段期间读出电荷模式。 读出装置通过产生与每个存储电极相邻的抽真空区域的读出电流来工作。 每个读出电流是在曝光阶段期间累积在相邻存储电极上的电荷的函数。 可以使用多种不同的读出技术。

    Electronic camera tube utilizing an array of charge storage cells for
image storage and tunneling devices for readout
    5.
    发明授权
    Electronic camera tube utilizing an array of charge storage cells for image storage and tunneling devices for readout 失效
    电子照相机管利用一系列用于图像存储的电荷存储单元和用于读出的隧穿装置

    公开(公告)号:US4827346A

    公开(公告)日:1989-05-02

    申请号:US96623

    申请日:1987-09-14

    CPC classification number: H01J31/26 H04N5/30

    Abstract: An electronic camera tube includes a transparent envelope enclosing an evacuated cavity, a photocathode layer on a first internal surface of the envelope and an array of cells on a second internal surface of the envelope. The first and second surfaces are parallel and closely spaced. The photocathode layer emits electrons in response to an incident light intensity pattern. The cells in the array receive the electrons from the photocathode layer and emit secondary electrons, thereby accumulating a charge pattern representing the light intensity pattern. The camera tube further includes readout devices for reading out the charge pattern during a readout phase. The readout devices operate by electron tunneling and inject electrons perpendicular to the cell array through the evacuated cavity to readout electrodes on the photocathode layer. The electron currents injected through the evacuated cavity by the readout devices are controlled in response to the charge on the respective cells in the array.

    Abstract translation: 电子照相机管包括封闭真空腔的透明封套,在外壳的第一内表面上的光电阴极层和在封套的第二内表面上的电池阵​​列。 第一和第二表面是平行和紧密间隔的。 光电阴极层响应于入射光强度图案发射电子。 阵列中的单元接收来自光电阴极层的电子并发射二次电子,从而累积表示光强度图案的电荷图案。 相机管还包括读出装置,用于在读出阶段期间读出电荷模式。 读出装置通过电子隧穿工作,并通过真空腔将与电池阵列垂直的电子注入到光电阴极层上的读出电极。 响应于阵列中各个单元上的电荷来控制由读出装置通过抽真空腔注入的电子电流。

    Ensheathed optical fiber and coupling method
    6.
    发明授权
    Ensheathed optical fiber and coupling method 失效
    固定光纤和耦合方法

    公开(公告)号:US4709986A

    公开(公告)日:1987-12-01

    申请号:US621933

    申请日:1984-06-18

    Abstract: A single-mode optical fiber transmission line suited for coupling to another fiber through a laterally coupled splice includes a core having a selected diameter, a cladding layer that surrounds the core and has a cladding thickness between one and two core diameters, and an auxiliary cladding into which the optical fiber is nested. The auxiliary cladding has an index of refraction not substantially greater than that of the cladding layer that surrounds the core, an inside dimension greater than that of the outside dimension of the optical fiber, at least partially surrounds the optical fiber and is attached to the optical fiber at least along one lineal connection zone. An optical fiber in accordance with the present invention may be spliced by freeing the optical fiber from the auxiliary cladding by, for example, dissolving the lineal connection zone with dilute hydrofluoric acid, fracturing and removing the auxiliary cladding from the freed cladding and core structure and effecting a lateral coupling splice with a similarly prepared optical fiber.

    Abstract translation: 适合于通过横向耦合的接头耦合到另一光纤的单模光纤传输线包括具有选定直径的芯,围绕芯并且具有一个和两个芯直径之间的包层厚度的包层,以及辅助包层 光纤嵌入其中。 辅助包层的折射率基本上不大于围绕芯的包覆层的折射率,其尺寸大于光纤的外部尺寸的内部尺寸,至少部分地围绕光纤并附着到光学 纤维至少沿着一条直线连接区域。 根据本发明的光纤可以通过例如通过用稀氢氟酸溶解线性连接区,从辅助包层和芯结构中分离和去除辅助包层而将光纤从辅助覆层释放, 用类似制备的光纤实现横向耦合接头。

    Fiber optic interferometer transducer
    7.
    发明授权
    Fiber optic interferometer transducer 失效
    光纤干涉仪传感器

    公开(公告)号:US4659923A

    公开(公告)日:1987-04-21

    申请号:US549875

    申请日:1983-11-09

    CPC classification number: G01D5/344 G01L1/243

    Abstract: A sensor or transducer having a dual path optical fiber, such as a single mode, two polarization state, waveguide fiber, utilizes the relative change in propagation constant of the paths to sense and transduce an applied force to an interference variation and ultimately an electrical signal. In this arrangement, in-phase light is introduced to both polarized states or paths in the fiber and transmitted therealong past a stress area of birefringement inducing force and ultimately combined, thereby producing in the combined beam a variation in interference which is related to the applied force. Specific structures are provided for converting isotropic forces such as pressure and temperature to anisotropic forces on the fiber to thereby produce birefringement and to also magnify the latter effect.

    Abstract translation: 具有双路径光纤的传感器或传感器,例如单模,两极化状态,波导光纤,利用路径的传播常数的相对变化来感测和转换施加的力到干扰变化并最终导致电信号 。 在这种布置中,同相光被引入光纤中的两个极化状态或路径,并且通过双折射诱导力的应力区域并且最终组合,从而在组合光束中产生与应用的相关的干涉变化 力。 提供了具体的结构,用于将诸如压力和温度的各向同性力转化为纤维上的各向异性力,从而产生双折射并且还可以放大后一种效果。

    Hollow tube method for forming an optical fiber
    8.
    发明授权
    Hollow tube method for forming an optical fiber 失效
    用于形成光纤的空心管法

    公开(公告)号:US4551162A

    公开(公告)日:1985-11-05

    申请号:US656260

    申请日:1984-10-01

    CPC classification number: C03B23/207 C03B23/07 C03B37/012 C03B37/01211

    Abstract: A method for forming an optical fiber from a single characteristic glass includes arraying hollow starter tubes about a central axis with each starter tube contacting its adjoining tubes along respective lines of contact to define a longitudinally extending opening about the central axis. The arrayed starter tubes are heated to cause them to fuse together along their lines of contact, and the fused starter tubes are inserted into a jacketing tube, preferably having the same physical and optical properties as the starter tubes. A pressure differential is established between the interior of the starter tubes and the tube-defined longitudinally extending opening. The tube assembly is heated to allow the established pressure differential to cause portions of the starter tubes to reform by moving toward and to the central axis to create a solid, void-free core and supporting webs. Other portions of the starter tubes expand toward and fuse to the interior surface of the jacketing tube. The resulting optical fiber has a central core supported from the interior of jacketing tube by the starter tube-defined webs with all the structural features of the fiber formed from a glass having the same physical and optical properties.

    Abstract translation: 用于从单一特征玻璃形成光纤的方法包括围绕中心轴线排列中空起动器管,每个起动器管沿相应的接触线与其邻接的管接触,以围绕中心轴线限定纵向延伸的开口。 将排列的起动器管加热以使它们沿着它们的接触线熔合在一起,并且将熔接的起动器管插入护套管中,优选地具有与起动管相同的物理和光学特性。 在起动器管的内部和管定义的纵向延伸的开口之间建立压力差。 管组件被加热以允许建立的压力差通过向中心轴线移动并移动到中心轴线而使部分起动器管重新形成,从而产生固体的无空隙芯和支撑腹板。 起动器管的其它部分向护套管的内表面扩张并熔化。 所得到的光纤具有由护套管的内部由起动器管限定的纤维网支撑的中心芯,纤维的所有结构特征由具有相同物理和光学性质的玻璃形成。

    Method of forming an optical fiber preform
    10.
    发明授权
    Method of forming an optical fiber preform 失效
    形成光纤预制棒的方法

    公开(公告)号:US4749396A

    公开(公告)日:1988-06-07

    申请号:US695063

    申请日:1985-01-25

    Abstract: An improved method of forming an optical fiber preform includes separately forming a rod-like inner member and a hollow tube-like outer member by a soot glass deposition technique. The inner member is inserted into the outer member, while they are both in their unconsolidated state, and the asssembled parts heated to cause the outer member to collapse about the inner member and form a preform. The resulting preform can be drawn in one or more stages to provide an optical fiber having sharp step change in its index of refraction between the core and the cladding, a superior quality core to cladding interface, and improved optical transmission qualities. The inner and outer members can, if desired, be partially consolidated but for an unconsolidated layer at their interface prior to heating the outer member to cause it to join with the inner member. In accordance with one feature of the present invention, an unconsolidated layer can be left on the outside surface of the outer member to provide a resulting fiber having superior mechanical handling characteristics.

    Abstract translation: 一种改进的形成光纤预制件的方法包括通过烟灰玻璃沉积技术单独形成棒状内部构件和中空管状外部构件。 内部构件被插入到外部构件中,同时它们处于未松开的状态,并且组装的部件被加热以使外部构件围绕内部构件塌陷并形成预制件。 所得到的预成型件可以在一个或多个阶段中拉伸,以提供其在芯和包层之间的折射率具有尖锐的阶跃变化的光纤,优质的芯到包层界面的质量和改善的光传输质量。 如果需要,内部和外部构件可以在加热外部构件之前被部分固结,但是在其界面处的未固结的层,以使其与内部构件接合。 根据本发明的一个特征,可以在外部构件的外表面上留下未固结的层,以提供具有优异的机械处理特性的所得纤维。

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