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    Wavelength division multiplexed optical communication system having reduced short wavelength loss
    1.
    发明授权
    Wavelength division multiplexed optical communication system having reduced short wavelength loss 失效
    具有降低的短波长损耗的波分复用光通信系统

    公开(公告)号：US06304691B1

    公开(公告)日：2001-10-16

    申请号：US09338066

    申请日：1999-06-23

    申请人： Rolando Patricio Espindola ,  Jefferson Lynn Wagener

    发明人： Rolando Patricio Espindola ,  Jefferson Lynn Wagener

    IPC分类号： G02B628

    CPC分类号： G02B6/2932 ,  G02B6/022 ,  G02B6/29317 ,  G02B6/29374 ,  G02B6/2938 ,  G02B6/29394 ,  G02F1/0134 ,  G02F2201/307 ,  H04B10/2519 ,  H04J14/02

    摘要： In accordance with the invention, a WDM optical system comprises a transmission line with a net negative dispersion rather than the conventional net positive dispersion and a DCG with a positive dispersion rather than negative dispersion. With this design, short wavelengths entering the grating are reflected first before the long wavelengths, minimizing the path of short wavelengths within the grating and thereby avoiding short wavelength cladding loss. In advantageous embodiments, the DCG compensates for both the net negative dispersion and dispersion slope of at least two signal channels and preferably of all signal channels.

    摘要翻译： 根据本发明，WDM光学系统包括具有净负色散而不是常规净正色散的传输线和具有正色散而不是负色散的DCG。 通过这种设计，进入光栅的短波长首先在长波长之前被反射，使光栅内短波长的路径最小化，从而避免短波长包层损耗。 在有利的实施例中，DCG补偿至少两个信号通道的净负色散和色散斜率，并优选地补偿所有信号通道。

    Internally modulated coupled cavity fiber lasers
    3.
    发明授权
    Internally modulated coupled cavity fiber lasers 失效
    内部调制耦合腔光纤激光器

    公开(公告)号：US5936980A

    公开(公告)日：1999-08-10

    申请号：US953803

    申请日：1997-10-09

    申请人： Rolando Patricio Espindola ,  Daryl Inniss ,  Jefferson Lynn Wagener

    发明人： Rolando Patricio Espindola ,  Daryl Inniss ,  Jefferson Lynn Wagener

    IPC分类号： H01S3/067 ,  H01S3/094 ,  H01S3/23 ,  H01S3/30

    CPC分类号： H01S3/0675 ,  H01S3/094003 ,  H01S3/09408 ,  H01S3/2383

    摘要： Laser apparatus for delivering optical power to an output port comprises first and second fiber lasers having at least partially overlapping cavity resonators. In one state the lasers are phase locked; in another they are not. An intracavity polarization transformer (e.g., a polarization modulator or a segment of PMF) determines the phase state of the apparatus. In each state the reflectivity of a reflector common to the lasers determines the amount of optical power which is delivered to the output port. In one embodiment the apparatus has a plurality of output ports to which separate utilization devices are coupled. The phase state of the lasers and the reflectivity of the common reflector determines how the optical power is allocated among the devices.

    摘要翻译： 用于将光功率传送到输出端口的激光装置包括具有至少部分重叠的腔谐振器的第一和第二光纤激光器。 在一个状态下，激光器是相位锁定的; 在另一个他们不是。 腔内偏振变换器（例如，偏振调制器或PMF的段）确定装置的相位状态。 在每个状态下，激光器共同的反射器的反射率决定了输送到输出端口的光功率量。 在一个实施例中，装置具有多个输出端口，单独的利用装置耦合到该输出端口。 激光器的相位状态和公共反射器的反射率决定了光功率如何在器件之间分配。

    Article comprising an optical waveguide tap
    4.
    发明授权
    Article comprising an optical waveguide tap 失效
    文章包括光波导抽头

    公开(公告)号：US5832156A

    公开(公告)日：1998-11-03

    申请号：US741439

    申请日：1996-10-31

    申请人： Thomas A. Strasser ,  Jefferson Lynn Wagener

    发明人： Thomas A. Strasser ,  Jefferson Lynn Wagener

    IPC分类号： G02B6/02 ,  G02B6/34 ,  G02B6/42

    CPC分类号： G02B6/29323 ,  G01J3/1895 ,  G02B6/02085 ,  G02B6/29358 ,  G02B6/29359 ,  G02B6/34 ,  G02B6/4215 ,  G02B6/4291 ,  G02B6/02138 ,  G02B6/4274

    摘要： A dispersive optical waveguide tap comprises a blazed and chirped refractive index grating in the core of the waveguide, coupling means and utilization means. The grating is selected such that guided mode light of predetermined wavelength will, in the absence of the coupling means, be directed into one or more cladding modes of the waveguide. The presence of the coupling means in optical co-operation with the waveguide, changes the guiding conditions such that the cladding modes are substantially eliminated from a portion of the waveguide that includes the cladding, whereby the grating directs the guided mode light into one or more radiation modes. The blaze angle typically is .ltoreq.15.degree.. The chirp serves to bring the radiation mode light substantially to a focus in at least one dimension, the focal point (or line) depending on the wavelength of the light. The utilization means exemplarily comprise an array of photodetectors, and the coupling means exemplarily comprise an appropriately shaped glass member and index matching means. Dispersive waveguide taps are advantageously used in WDM optical communication systems, e.g., to provide status information (e.g., channel wavelength, channel power, including presence or absence of a channel) to, e.g., a system maintenance unit. The status information facilitates maintenance of operating conditions by conventional feedback control.

    摘要翻译： 分散光波导抽头包括波导芯体中的闪耀和啁啾折射率光栅，耦合装置和利用装置。 选择光栅使得在没有耦合装置的情况下，预定波长的导模光将被引导到波导的一个或多个包层模式。 与波导光学合作的耦合装置的存在改变了引导条件，使得包层模式基本上从包括包层的波导的一部分消除，由此光栅将引导模式的光引导到一个或多个 辐射模式。 火焰角通常为

    Switchable and reconfigurable optical grating devices and methods for making them
    5.
    发明授权
    Switchable and reconfigurable optical grating devices and methods for making them 失效
    可切换和可重新配置的光栅设备及其制造方法

    公开(公告)号：US06285812B1

    公开(公告)日：2001-09-04

    申请号：US09118198

    申请日：1998-07-17

    申请人： Karl R. Amundson ,  Benjamin John Eggleton ,  John A. Rogers ,  Jefferson Lynn Wagener

    发明人： Karl R. Amundson ,  Benjamin John Eggleton ,  John A. Rogers ,  Jefferson Lynn Wagener

    IPC分类号： G02B634

    CPC分类号： G02F1/0118 ,  G02B6/02195 ,  G02F1/0115 ,  G02F2201/307

    摘要： In accordance with the invention, an optical fiber grating device is made by providing a fiber with an electrically actuable component optically responsive to voltage or current and a plurality of conductive elements to locally activate the component and thereby to produce local optical perturbations in the fiber. In a preferred embodiment, a fiber is provided with a core of liquid crystal material and a plurality of periodically spaced microelectrode pairs. Application of a voltage to the microelectrodes results in a periodic sequence of perturbations in the core index which produces a grating. When the voltage is switched off, the grating switches off. Other embodiments utilize helical conductive elements.

    摘要翻译： 根据本发明，通过向光纤提供光学响应于电压或电流的电致动部件和多个导电元件来局部激活部件并由此在光纤中产生局部光学干扰来制造光纤光栅器件。 在优选实施例中，纤维设置有液晶材料芯和多个周期性间隔的微电极对。 对微电极施加电压导致产生光栅的芯指数中的周期扰动序列。 当电压关闭时，光栅关闭。 其他实施例使用螺旋导电元件。

    Temperature-compensated rare earth doped optical waveguide amplifiers
    9.
    发明授权
    Temperature-compensated rare earth doped optical waveguide amplifiers 有权
    温度补偿稀土掺杂光波导放大器

    公开(公告)号：US06049414A

    公开(公告)日：2000-04-11

    申请号：US197396

    申请日：1998-11-20

    申请人： Rolando Patricio Espindola ,  Thomas Andrew Strasser ,  Jefferson Lynn Wagener ,  Paul Francis Wysocki

    发明人： Rolando Patricio Espindola ,  Thomas Andrew Strasser ,  Jefferson Lynn Wagener ,  Paul Francis Wysocki

    IPC分类号： H01S3/06 ,  G02B6/00 ,  G02B6/02 ,  H01S3/067 ,  H01S3/10 ,  H04B10/17 ,  G02B6/34 ,  H01S3/30 ,  H04J14/02

    CPC分类号： H04B10/2941 ,  H01S3/10023 ,  H01S2301/04 ,  H01S3/06758

    摘要： In accordance with the invention, a temperature-dependent rare earth doped waveguide optical amplifier is compensated by a temperature-dependent loss filter. The filter characteristics are designed to be temperature-dependent filters so that the gain characteristic of the amplifier is compensated over a practical operating temperature range. In essence, the amplifier comprises a length of optical waveguide for transmitting optical signals, a rare earth doped amplifying region in the waveguide for amplifying the transmitted optical signals, a pumping source for optically pumping the amplifying region, and a temperature-dependent loss filter. A typical design compensates an EFDA to a variation of less than 1 dB over a temperature range of -40.degree. C. to 85.degree. C. and a spectral range of at least 20 nm.

    摘要翻译： 根据本发明，温度依赖性稀土掺杂波导光放大器由温度依赖性损耗滤波器补偿。 滤波器特性被设计为温度依赖滤波器，使得放大器的增益特性在实际工作温度范围内得到补偿。 本质上，放大器包括用于传输光信号的一段光波导，用于放大透射光信号的波导中的稀土掺杂放大区域，用于光泵浦放大区域的泵浦源和温度依赖损耗滤波器。 典型的设计在-40℃至85℃的温度范围和至少20nm的光谱范围内将EFDA补偿为小于1dB的变化。