Network transceiver for extending the bandwidth of optical fiber-based network infrastructure
    2.
    发明授权
    Network transceiver for extending the bandwidth of optical fiber-based network infrastructure 失效
    网络收发器,用于扩展基于光纤的网络基础设施的带宽

    公开(公告)号:US06944404B2

    公开(公告)日:2005-09-13

    申请号:US09812236

    申请日:2001-03-19

    Abstract: A multimode wavelength division multiplexing (WDM) network transceiver and method includes a plurality of optical transmitters and a multiplexer operatively connected to each optical transmitter for receiving optical communications signals and multiplexing the signals into a multimode wavelength division multiplexed optical communications signal. A demultiplexer receives a multimode wavelength division multiplexed optical communications signal and demultiplexes the signal into a plurality of demultiplexed optical communications signals that are then received and detected within a plurality of optical receivers.

    Abstract translation: 多模波分复用(WDM)网络收发机和方法包括多个光发射机和多路复用器,可操作地连接到每个光发射机,用于接收光通信信号,并将该信号复用成多模波分复用光通信信号。 解复用器接收多模波分复用光通信信号,并将信号解复用为多个解复用的光通信信号,然后在多个光接收机内接收和检测。

    WDM channel monitoring system and method
    3.
    发明授权
    WDM channel monitoring system and method 失效
    WDM通道监控系统及方法

    公开(公告)号:US06748179B2

    公开(公告)日:2004-06-08

    申请号:US09801103

    申请日:2001-03-07

    Abstract: The system and method of the present invention is operative to monitor the performance of an optical communications channel. An optical splitter splits a wavelength division multiplexed (WDM) optical communications signal into a low power WDM signal onto a back-up path, where a tunable filter sweeps the optical communications channels, while a monitoring circuit monitors the optical communications channels for performance. Optical power can be stored and subsequently displayed, providing an optical spectrum analysis of the signal.

    Abstract translation: 本发明的系统和方法可操作以监视光通信信道的性能。 光分路器将波分复用(WDM)光通信信号分解成低功率WDM信号到备用路径,其中可调滤波器扫描光通信信道,而监控电路监视光通信信道的性能。 可以存储和随后显示光功率,提供信号的光谱分析。

    Network transceiver for extending the bandwidth of optical fiber-based network infrastructure
    4.
    发明授权
    Network transceiver for extending the bandwidth of optical fiber-based network infrastructure 有权
    网络收发器,用于扩展基于光纤的网络基础设施的带宽

    公开(公告)号:US07164863B2

    公开(公告)日:2007-01-16

    申请号:US11149474

    申请日:2005-06-09

    Abstract: A multimode wavelength division multiplexing (WDM) network transceiver and method includes a plurality of optical transmitters and a multiplexer operatively connected to each optical transmitter for receiving optical communications signals and multiplexing the signals into a multimode wavelength division multiplexed optical communications signal. A demultiplexer receives a multimode wavelength division multiplexed optical communications signal and demultiplexes the signal into a plurality of demultiplexed optical communications signals that are then received and detected within a plurality of optical receivers.

    Abstract translation: 多模波分复用(WDM)网络收发机和方法包括多个光发射机和多路复用器,可操作地连接到每个光发射机,用于接收光通信信号,并将该信号复用成多模波分复用光通信信号。 解复用器接收多模波分复用光通信信号,并将信号解复用为多个解复用的光通信信号,然后在多个光接收机内接收和检测。

    Offset stabilization of wide dynamic range injection laser diode with
single bit sampling
    6.
    发明授权
    Offset stabilization of wide dynamic range injection laser diode with single bit sampling 失效
    宽动态范围注入激光二极管的偏移稳定性,采用单位采样

    公开(公告)号:US5506853A

    公开(公告)日:1996-04-09

    申请号:US346267

    申请日:1994-11-23

    Applicant: Edward Tegge

    Inventor: Edward Tegge

    CPC classification number: H01S5/06832 H01S5/06804

    Abstract: A laser driver for an injection laser diode (ILD) has a stable power offset. The laser driver drives a laser having an optical power output that includes (a) a variable portion for providing signals and (b) a power offset that is desirably stable. The power offset may be stabilized by providing a stable input reference to the laser driver during an interval of operation when the laser is not providing signals, the input reference providing an optical power output from the laser that is approximately the same as the power offset. The laser output generated by the input reference may be compared to a predetermined reference voltage in order to provide an error correction signal, which may be a single bit. The error correction signal may be fed back to an input to the laser to correct the power offset.

    Abstract translation: 用于注入激光二极管(ILD)的激光驱动器具有稳定的功率偏移。 激光驱动器驱动具有光功率输出的激光器,其包括(a)用于提供信号的可变部分和(b)期望稳定的功率偏移。 当激光器不提供信号时,在操作间隔期间通过提供稳定的激光驱动器的输入基准,功率偏移可以被稳定,输入参考提供与激光大致相同的光功率输出。 可以将由输入参考产生的激光输出与预定参考电压进行比较,以便提供可以是单个位的纠错信号。 误差校正信号可以反馈到激光器的输入以校正功率偏移。

    Modular free space optical (FSO) device and related methods
    7.
    发明申请
    Modular free space optical (FSO) device and related methods 有权
    模块化自由空间光学(FSO)装置及相关方法

    公开(公告)号:US20050069323A1

    公开(公告)日:2005-03-31

    申请号:US10673992

    申请日:2003-09-29

    CPC classification number: H04B10/1125

    Abstract: A modular free space optical (FSO) communications device may include an adaptive optics (AO) module and an interchangeable optical relay (OR) module. More particularly, the AO module may include an AO housing and at least one AO device carried thereby. Also, the interchangeable OR module may include an OR housing and at least one OR device carried thereby. The at least one OR device of a given OR module may provide a predetermined focal length range from among different focal length ranges for respective OR modules. In addition, the OR housing and the AO housing may be interchangeably connectable and establish an optical path between the at least one OR device and the at least one AO device when connected.

    Abstract translation: 模块化自由空间光(FSO)通信设备可以包括自适应光学(AO)模块和可互换的光学继电器(OR)模块。 更具体地,AO模块可以包括AO壳体和由其承载的至少一个AO装置。 此外,可互换OR模块可以包括OR壳体和由其承载的至少一个OR装置。 给定OR模块的至少一个OR装置可以为各个OR模块提供来自不同焦距范围的预定焦距范围。 此外,OR壳体和AO壳体可以互换地连接,并且当连接时在至少一个OR装置和至少一个AO装置之间建立光路。

    Dual feedback path linearization of galvanometer-scanned laser with a
laser beam splitter housing assembly having beam shaping optics
    8.
    发明授权
    Dual feedback path linearization of galvanometer-scanned laser with a laser beam splitter housing assembly having beam shaping optics 失效
    具有光束整形光学元件的激光束分离器壳体组件的电流计扫描激光器的双反馈路径线性化

    公开(公告)号:US5371360A

    公开(公告)日:1994-12-06

    申请号:US163247

    申请日:1993-12-06

    CPC classification number: H01S5/042 G06K15/1214 H01S5/0264

    Abstract: A laser driver mechanism for image reproduction maintains linear operation over a wide frequency an dynamic range of amplitude-modulated input signals by means of a first feedback loop and a second feedback loop. The second feedback loop contains a first amplifier coupled to receive the input signals and an output coupled to a second amplifier that drives an injection laser diode. A photodetector is coupled downstream of and external to a sealed unit in which the injection laser diode emitter, an associated photodetector of the first feedback loop and beam extraction optics are housed. The photodetector of the second loop has an output coupled to the second amplifier, so that the second feedback loop serves to compensate for non-linearities in the laser driver including those of the first feedback loop. Because the second photodetector is supported externally of the sealed unit, the feedback path from the second photodetector effectively forms an outer loop feedback path relative to the first feedback path, so that the ambient operating conditions of the second photodetector are not affected by the operation of the laser. The sealed unit is mounted in a module that effectively equalizes the cross-sectional spatial distribution of optical energy within the light beam emitted by the injection laser diode and ensures that the spatial cross-section of the image spot seen by the photodetector is effectively constant regardless of laser output beam intensity. For precision scanning of the recording medium, the laser output beam is scanned by a linearly swept galvanometer.

    Abstract translation: 用于图像再现的激光驱动器机构通过第一反馈回路和第二反馈回路在宽频率上维持幅度调制输入信号的动态范围的线性运算。 第二反馈回路包括耦合以接收输入信号的第一放大器和耦合到驱动注入激光二极管的第二放大器的输出。 光电检测器耦合到密封单元的下游和外部,其中注入激光二极管发射器,第一反馈环路的相关联的光电检测器和光束提取光学器件。 第二环路的光电检测器具有耦合到第二放大器的输出,使得第二反馈环路用于补偿激光驱动器中的非线性,包括第一反馈回路的非线性。 由于第二光电检测器被支撑在密封单元的外部,所以来自第二光电探测器的反馈路径有效地形成相对于第一反馈路径的外环反馈路径,使得第二光电探测器的环境工作状态不受 激光。 密封单元安装在模块中,其有效地均衡由注入激光二极管发射的光束内的光能的横截面空间分布,并且确保由光电检测器看到的图像斑点的空间横截面有效地恒定无论 的激光输出光束强度。 对于记录介质的精确扫描,激光输出光束被线性扫描电流计扫描。

    Free space optical (FSO) device providing remote control features and related methods
    9.
    发明申请
    Free space optical (FSO) device providing remote control features and related methods 失效
    自由空间光学(FSO)设备提供遥控功能和相关方法

    公开(公告)号:US20050069324A1

    公开(公告)日:2005-03-31

    申请号:US10673997

    申请日:2003-09-29

    CPC classification number: H04B10/1125

    Abstract: A modular free, space optical (FSO) communications device may include an optical relay (OR) module and a base module. More particularly, the OR module may include an OR housing and at least one OR device carried thereby. Further, the base module may include a base housing and at least one positioner carried thereby for providing relative movement between the base module and the OR module for optical beam aiming. The modular FSO communications device may also include a camera and a remote station interface connected to the at least one positioner for permitting remote optical beam aiming. Furthermore, the remote station interface may also be connected to the camera for permitting remote viewing.

    Abstract translation: 模块化空间光纤(FSO)通信设备可以包括光学继电器(OR)模块和基本模块。 更具体地,OR模块可以包括OR壳体和由其承载的至少一个OR装置。 此外,基座模块可以包括基座壳体和由此承载的至少一个定位器,用于在基模块和用于光束瞄准的OR模块之间提供相对运动。 模块化FSO通信设备还可以包括连接到至少一个定位器的照相机和远程站接口,用于允许远程光束瞄准。 此外,远程站接口也可以连接到摄像机以允许远程观看。

    Thermal compensation of injection laser diodes driven by shunt current
modulators
    10.
    发明授权
    Thermal compensation of injection laser diodes driven by shunt current modulators 失效
    由分流电流调制器驱动的注入激光二极管的热补偿

    公开(公告)号:US6151339A

    公开(公告)日:2000-11-21

    申请号:US587795

    申请日:1995-12-26

    CPC classification number: H01S5/06825 H01S5/06804 H01S5/0683 H01S5/042

    Abstract: A laser driver for an injection laser diode (ILD) protects the ILD during ILD temperature changes so that the ILD is not subjected to a potentially harmful operating current. The ILD may be operated near it maximum limit and modulated by decreasing the available current to the ILD. The temperature of the ILD may be sensed and the maximum ILD driving current changed proportionally to a change of the sensed temperature.

    Abstract translation: 用于注射激光二极管(ILD)的激光驱动器在ILD温度变化期间保护ILD,使得ILD不受到潜在有害的操作电流的影响。 ILD可以在其最大限度附近操作,并通过减少ILD的可用电流进行调制。 可以感测ILD的温度,并且最大ILD驱动电流与感测温度的变化成比例地变化。

Patent Agency Ranking