公开(公告)号：US5999549A

公开(公告)日：1999-12-07

申请号：US20553

申请日：1998-02-09

申请人： Ladd W. Freitag ,  David Warren Siljenberg ,  Raymond Jonathan Thatcher

发明人： Ladd W. Freitag ,  David Warren Siljenberg ,  Raymond Jonathan Thatcher

IPC分类号： H01S3/00 ,  H01S5/068

CPC分类号： H01S5/06825 ,  H01S3/0014

摘要： A method and apparatus are provided for laser safety. A fault detector detects laser fault conditions and generates a laser fault control signal. A laser fault counter is coupled to the fault detector for counting laser fault conditions and for generating a disable laser control signal responsive to a predetermined fault count. A reset timer is coupled to the laser fault counter for identifying a predetermined reset time period responsive to the laser fault control signal and applying a reset signal to the laser fault counter. Features of laser safety method and apparatus of the invention are that the laser fault counter is reset if a second laser fault condition is not detected within the predetermined reset time period after the laser is turned on. The disable laser control signal is not generated when a safe laser optical power condition occurs between two laser fault conditions.

摘要翻译： 提供了用于激光安全的方法和装置。 故障检测器检测激光故障状况并产生激光故障控制信号。 激光故障计数器耦合到故障检测器，用于对激光器故障状况进行计数，并且响应于预定的故障计数产生禁用的激光控制信号。 复位定时器耦合到激光故障计数器，用于响应于激光故障控制信号识别预定的复位时间周期，并将复位信号施加到激光故障计数器。 本发明的激光安全方法和装置的特征在于，在激光打开之后的预定复位时间段内没有检测到第二激光故障条件时，激光故障计数器被复位。 在两个激光故障条件之间发生安全的激光光功率条件时，不产生禁用激光控制信号。

公开(公告)号：US5039194A

公开(公告)日：1991-08-13

申请号：US462681

申请日：1990-01-09

申请人： Timothy R. Block ,  Marcia B. Ebler ,  Ladd W. Freitag ,  Gerald M. Heiling ,  Spencer C. Holter ,  Dennis L. Karst ,  David W. Siljenberg ,  Ronald L. Soderstrom ,  John T. Trnka

发明人： Timothy R. Block ,  Marcia B. Ebler ,  Ladd W. Freitag ,  Gerald M. Heiling ,  Spencer C. Holter ,  Dennis L. Karst ,  David W. Siljenberg ,  Ronald L. Soderstrom ,  John T. Trnka

IPC分类号： H04B10/12 ,  G02B6/38 ,  H04B10/13 ,  H04B10/135 ,  H04B10/14 ,  H04B10/155

CPC分类号： H04B10/50 ,  G02B6/4246

摘要： An optical fiber link card communication module, and process for fabricating the module, where the module provides a parallel electrical interface to the user, facilitates high speed serial transmission of data over an optical data link, and contains a plurality of converters for performing conversions between both electrical and optical signals. The module further includes edge mounted optical components having leads mounted on the surface of a card (as opposed to standard pin-in-hole type leads) to minimize lead capacitance and inductance from the optical components to the card electronics, on board card control means for the converters and safety shut down means on the same card as the electrical and optical components.

公开(公告)号：US06916122B2

公开(公告)日：2005-07-12

申请号：US10367278

申请日：2003-02-14

申请人： Scott Michael Branch ,  Eugene E. Distad ,  Ladd W. Freitag ,  Michael Francis Hanley ,  David Peter Gaio

发明人： Scott Michael Branch ,  Eugene E. Distad ,  Ladd W. Freitag ,  Michael Francis Hanley ,  David Peter Gaio

IPC分类号： G02B6/36 ,  G02B6/42 ,  H01L23/552 ,  H01R13/658 ,  H05K7/20

CPC分类号： G02B6/4201 ,  G02B6/4256 ,  G02B6/4261 ,  G02B6/4269 ,  G02B6/4277 ,  H01L23/552 ,  H01L2924/0002 ,  H01R13/6582 ,  H05K7/20418 ,  H01L2924/00

摘要： The invention relates to modular heat-dissipating housing covers for opto-electronic modules, e.g. transceivers. The housing covers according to the present invention are constructed out of various different parts, which provide different levels of heat dissipation depending on the desired implementation, while maintaining a seal against EMI leakage. Extra heat sinking portions are provided to dissipate heat generated from specific heat generating sources. The extra heat sinking portions are configured into a shape and/or out of a material that provides more thermal dissipation than the standard cover provided. Independent control over the different heat sinking portions enables a better fit and appropriate dissipation.

摘要翻译： 本发明涉及用于光电模块的模块化散热壳体盖，例如， 收发器 根据本发明的壳体盖由各种不同的部件构成，这些部件根据期望的实施方式提供不同的散热水平，同时保持抵抗EMI泄漏的密封。 提供额外的散热部分以散发由特定发热源产生的热量。 额外的散热部分被配置成与所提供的标准盖相比提供更多散热的材料的形状和/或外部。 对不同散热部分的独立控制使得能够更好地适应和适当的耗散。

公开(公告)号：US20080170221A1

公开(公告)日：2008-07-17

申请号：US12020657

申请日：2008-01-28

申请人： Jessica R. Berens ,  Ladd W. Freitag ,  Joseph Kuczynski ,  Fraser A. Syme

发明人： Jessica R. Berens ,  Ladd W. Freitag ,  Joseph Kuczynski ,  Fraser A. Syme

IPC分类号： G01N21/00

CPC分类号： G02B6/4402 ,  G02B6/001

摘要： Fiber optic cable systems and methods incorporating a luminescent compound-containing layer to identify cracks. Exemplary embodiments include a fiber optic cable apparatus including a core for receiving laser light emitted from a VCSEL for the detection of faults in the fiber optic cable, a cladding disposed around the core, the cladding having an index of retraction differential with the core thereby allowing containment of light within the core by total internal reflection within the core, a buffer disposed around the cladding, the buffer capable of receiving LED emitted light for the detection of faults in the fiber optic cable, a braiding layer disposed around the buffer and configured to allow LED light to transmit from the buffer, and a jacket disposed around the braiding layer, the jacket having optical properties to receive LED light transmitted down the buffer in response to VCSEL light having been unsuccessfully transmitted down the core.

摘要翻译： 光纤电缆系统和包含含发光化合物层的方法来识别裂纹。 示例性实施例包括光纤电缆设备，其包括用于接收从VCSEL发射的用于检测光纤电缆中的故障的激光的核心，围绕芯部设置的包层，所述包层具有与芯部的缩回差异指数，从而允许 通过芯内部的全内反射来容纳光内部的光，设置在包层周围的缓冲器，该缓冲器能够接收用于检测光纤电缆中的故障的LED发射光;编织层，设置在缓冲器的周围， 允许LED光从缓冲器传输，以及设置在编织层周围的护套，所述护套具有光学特性以接收响应于未被成功地沿着芯发射的VCSEL光而沿缓冲器传送的LED光。

公开(公告)号：US06712527B1

公开(公告)日：2004-03-30

申请号：US09481903

申请日：2000-01-12

申请人： Benson Chan ,  Mitchell S. Cohen ,  Paul F. Fortier ,  Ladd W. Freitag ,  Richard R. Hall ,  Glen W. Johnson ,  How Tzu Lin ,  John H. Sherman

发明人： Benson Chan ,  Mitchell S. Cohen ,  Paul F. Fortier ,  Ladd W. Freitag ,  Richard R. Hall ,  Glen W. Johnson ,  How Tzu Lin ,  John H. Sherman

IPC分类号： G02B636

CPC分类号： G02B6/4201 ,  G02B6/3885 ,  G02B6/421 ,  G02B6/4246 ,  G02B6/4261 ,  G02B6/4268 ,  G02B6/4277 ,  G02B6/4281 ,  G02B6/4283 ,  G02B6/4292 ,  H05K1/189

摘要： A package is described that couples a twelve channel wide fiber optic cable to a twelve channel Vertical Cavity Surface Emitting Laser (VCSEL) transmitter and a multiple channel Perpendicularly Aligned Integrated Die (PAID) receiver. The package allows for reduction in the height of the assembly package by vertically orienting certain dies parallel to the fiber optic cable and horizontally orienting certain other dies. The assembly allows the vertically oriented optoelectronic dies to be perpendicularly attached to the horizontally oriented laminate via a flexible circuit.

摘要翻译： 描述了将十二通道宽光纤电缆耦合到十二通道垂直腔面发射激光器（VCSEL）发射器和多通道垂直对准集成管芯（PAID）接收器的封装。 该封装允许通过垂直定向平行于光纤电缆的某些管芯并水平地定向某些其他管芯来降低组件封装的高度。 组件允许垂直定向的光电管芯通过柔性电路垂直地附接到水平取向的层压板。

公开(公告)号：US5069522A

公开(公告)日：1991-12-03

申请号：US672193

申请日：1991-03-19

申请人： Timothy R. Block ,  Marcia B. Ebler ,  Ladd W. Freitag ,  Gerald M. Heiling ,  Spencer C. Holter ,  Dennis L. Karst ,  David W. Siljenberg ,  Ronald L. Soderstrom ,  John T. Trnka

发明人： Timothy R. Block ,  Marcia B. Ebler ,  Ladd W. Freitag ,  Gerald M. Heiling ,  Spencer C. Holter ,  Dennis L. Karst ,  David W. Siljenberg ,  Ronald L. Soderstrom ,  John T. Trnka

IPC分类号： G02B6/38 ,  H04B10/155

CPC分类号： G02B6/4292 ,  H04B10/50 ,  G02B6/4246

摘要： An optical fiber link card communication module, and process for fabricating the module, where the module provides a parallel electrical interface to the user, facilitates high speed serial transmission of data over an optical data link, and contains a plurality of converters for performing conversions between both electrical and optical signals. A preferred embodiment of the invention contemplates fabricating the optical communication module on a single multilayer card with all the transmitter electrical components being located on one side of the card, all receiver electrical components being located on the other side of the card, and the transmitter and receiver components being separated by shielding layers in the card. By using two transmitter/receiver pairs (with the transmitters and receivers being located on respective sides of the card) an embodiment of the invention provides for double full duplex communications.

摘要翻译： 光纤链路卡通信模块和用于制造模块的过程，其中模块向用户提供并行电接口，便于在光数据链路上高速串行传输数据，并且包含多个转换器，用于在 电信号和光信号。 本发明的优选实施例考虑将光通信模块制造在单个多层卡上，其中所有发射器电气部件位于卡的一侧，所有接收器电气部件位于卡的另一侧，并且发射器和 接收器部件由卡中的屏蔽层分开。 通过使用两个发射机/接收机对（发射机和接收机位于卡的相应侧），本发明的一个实施例提供双全双工通信。