Optical amplifier and laser
    11.
    发明授权
    Optical amplifier and laser 失效
    光放大器和激光器

    公开(公告)号:US5453873A

    公开(公告)日:1995-09-26

    申请号:US309136

    申请日:1994-09-20

    CPC classification number: H01S3/094003 H01S3/06754 H01S3/094092 H01S3/1608

    Abstract: A laser has a resonant cavity defined by a pair of mirrors (6, 10) butted to respective ends of a 3 m fluorozirconate optical fibre (14). The fibre (14) has a .DELTA.n of 0.014 and a cut-off wavelength of around 790 nm and is doped to about 500 ppm (weight) with erbium ions. An optical pump source (12) provides a pump signal at 971 nm which excites the erbium ions into the .sup.4 S.sub.3/2 energy level to provide lasing at about 546 nm. The laser may alternatively be pumped by a pump signal in the band 791 nm to 812 nm, preferably 801 nm. The pump source is preferably a high power semiconductor laser (16).

    Abstract translation: 激光器具有由一对反射镜(6,10)限定的谐振腔,对接到3μm氟锆酸盐光纤(14)的相应端。 光纤(14)具有0.014的DELTA n和约790nm的截止波长,并用铒离子掺杂到约500ppm(重量)。 光泵浦源(12)在971nm处提供泵浦信号,其将铒离子激发到4S3 / 2能级以在约546nm处提供激光。 可选地,激光器可以通过791nm至812nm,优选为801nm的波段的泵浦信号来泵浦。 泵浦源优选地是大功率半导体激光器(16)。

    Optical sensor/actuator communication system with common control site
independently responding to inputs from sensors and controlling
associated actuators
    12.
    发明授权
    Optical sensor/actuator communication system with common control site independently responding to inputs from sensors and controlling associated actuators 失效
    具有共同控制现场的光学传感器/执行器通信系统独立地响应来自传感器的输入并控制相关联的致动器

    公开(公告)号:US5623565A

    公开(公告)日:1997-04-22

    申请号:US347299

    申请日:1995-01-26

    CPC classification number: H04B10/272 G01D5/268

    Abstract: An optical communication system includes a head-end station, an optical fibre network and a number or sensors and actuators connected via the network to the head-end station. The head-end station includes one or more broadband sources and is arranged to output a broadband signal onto the network. The sensors modulate the broadband signal received from the head-end station and return narrowband components of the signal via the network to the head-end. There the different narrowband components are detected, for example using a demultiplexer and the resulting signals processed by control electronics. The head-end station also includes an optical circuit arranged to split a signal from a broadband source into different narrowband components. Electro-optic modulators (FOM) modulate the different narrowband components and the resulting narrowband signals are output onto the fibre network and transmitted to the actuators. The electro-optic modulators (FOM) are operated by the control electronics.

    Abstract translation: PCT No.PCT / GB93 / 01130 Sec。 371日期1995年1月26日 102(e)日期1995年1月26日PCT提交1993年5月28日PCT公布。 公开号WO93 / 25020 PCT 日期1994年12月9日光通信系统包括头端站,光纤网络和经由网络连接到头端站的数字或传感器和致动器。 前端站包括一个或多个宽带源,并且被布置成将宽带信号输出到网络上。 传感器调制从头端站接收的宽带信号,并通过网络将信号的窄带分量返回到头端。 在那里检测不同的窄带分量,例如使用解复用器和由控制电子器件处理的结果信号。 前端站还包括光路,其被布置为将来自宽带源的信号分割成不同的窄带分量。 电光调制器(FOM)调制不同的窄带分量,并将所得的窄带信号输出到光纤网络上并传输到致动器。 电光调制器(FOM)由控制电子器件操作。

    Cleaving apparatus and method
    13.
    发明授权
    Cleaving apparatus and method 失效
    切割装置和方法

    公开(公告)号:US4667862A

    公开(公告)日:1987-05-26

    申请号:US791141

    申请日:1985-11-25

    Abstract: Apparatus for cleaving an optical fibre (115) under axial tension, is provided with a cleaver blade (116) which is mounted as part of a rotatable cleaver assembly. The assembly is balanced about its axis of rotation and, as described, comprises a wheel (117) mounted on an axle (138). The cleaver blade (116) is attached to an arm which extends radially from the wheel (117). A hair spring (304) drives the assembly. The cleaving apparatus finds particular application in cleaving monomode fibres under normal working, rather than laboratory, conditions.

    Abstract translation: PCT No.PCT / GB85 / 00053 Sec。 371日期:1985年11月25日 102(e)1985年11月25日日期PCT提交1985年2月8日PCT公布。 公开号WO85 / 03502 日期:1985年8月15日。用于在轴向张力下切割光纤(115)的装置设置有切割刀片(116),其被安装为可旋转切割器组件的一部分。 组件围绕其旋转轴线平衡,并且如所描述的,包括安装在轴(138)上的轮(117)。 切割刀片(116)附接到从轮(117)径向延伸的臂。 发条(304)驱动组件。 切割装置在正常工作而不是实验室条件下,特别适用于切割单模纤维。

    Coupling of dielectric optical waveguides
    14.
    发明授权
    Coupling of dielectric optical waveguides 失效
    介质光波导耦合

    公开(公告)号:US4497536A

    公开(公告)日:1985-02-05

    申请号:US497219

    申请日:1983-05-27

    Abstract: A technique for aligning and coupling dielectric optical waveguides comprises threading the end of a waveguide through the central opening of a triad ball connector and forming by fusion a generally spherical glass bead on the end of the waveguide using, for example, an electric arc. The waveguide is then drawn back so that the bead contacts the balls of the triad connector to accurately locate the waveguide. The bead acts as a locating element and also has beneficial focussing properties.

    Abstract translation: 用于对准和耦合电介质光波导的技术包括将波导的端部穿过三联形球连接器的中心孔,并通过使用例如电弧在波导端部上的大致球形的玻璃珠熔合而形成。 然后将波导拉回,使得珠与三单元连接器的球接触以精确地定位波导。 珠作为定位元件,并且还具有有益的聚焦特性。

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