公开(公告)号：US20050094378A1

公开(公告)日：2005-05-05

申请号：US10999501

申请日：2004-11-30

申请人： Grant Moulton ,  Jeff Hamilton-Gahart

发明人： Grant Moulton ,  Jeff Hamilton-Gahart

IPC分类号： G02B6/34 ,  G02B6/38 ,  G02B6/42 ,  G02B6/44 ,  H05K7/20

CPC分类号： G02B6/4453 ,  G02B6/3897

摘要： An assembly, method, and device for high-speed optical format data transmission includes a printed circuit board containing mounting locations for electrical components, optical components, and a heatsink device. A tray may also be mounted on the printed circuit board to route optical fiber to various components. The heatsink is positioned at a predetermined height above the printed circuit board so that it physically contacts the electrical and optical components that require cooling. The printed circuit board may include one or more openings in which one or more of the electrical or optical components that are significantly taller than the other components are embedded. The heatsink may also include one or more openings in which one or more of the taller electrical or optical components are positioned. Additional compliant heat conductive material may be placed between the top of one or more electrical or optical components and the heatsink when the components are not as high at the position of the heatsink. Material may also be removed from the bottom of one or more portions of the heatsink to accommodate one or more of the electrical or optical components that are slightly higher than the position of the heatsink. The layout of the printed circuit board assembly includes positioning the electrical and optical components for receiving data on one section of the printed circuit board, while the electrical and optical components for transmitting data are positioned on another section of the printed circuit board. The electrical and optical components that are sensitive to temperature variation are positioned near the portion of the printed circuit board that receives the greatest amount of cooling.

摘要翻译： 用于高速光学格式数据传输的组件，方法和装置包括包含用于电气部件，光学部件和散热装置的安装位置的印刷电路板。 托盘也可以安装在印刷电路板上以将光纤路由到各种部件。 散热器位于印刷电路板上方的预定高度处，使得其物理地接触需要冷却的电气和光学部件。 印刷电路板可以包括一个或多个开口，其中嵌入了显着高于其它部件的电气或光学部件中的一个或多个。 散热器还可以包括其中一个或多个更高的电气或光学部件被定位的一个或多个开口。 当部件在散热器的位置不高时，附加的柔性导热材料可以放置在一个或多个电气或光学部件的顶部和散热器之间。 还可以从散热器的一个或多个部分的底部去除材料，以容纳稍微高于散热器位置的一个或多个电气或光学部件。 印刷电路板组件的布局包括将用于在印刷电路板的一个部分上接收数据的电气和光学部件定位，而用于传输数据的电气和光学部件位于印刷电路板的另一部分上。 对温度变化敏感的电气和光学部件位于接收最大冷却量的印刷电路板的部分附近。

公开(公告)号：US20100003032A1

公开(公告)日：2010-01-07

申请号：US10072707

申请日：2002-02-05

申请人： Alain Houle ,  Bengt Johansson ,  Jeff Hamilton-Gahart

发明人： Alain Houle ,  Bengt Johansson ,  Jeff Hamilton-Gahart

IPC分类号： H04J14/02

CPC分类号： H04J14/0227 ,  H04J14/0221 ,  H04J14/0246 ,  H04J14/0279 ,  H04J14/0283 ,  H04L1/007

摘要： Systems and methods for upgrading selected wavelengths in a WDM link to higher data rates at minimal expense are provided. Error correction coding techniques are employed such that the data encoded onto the upgraded wavelengths experiences higher coding gain than that experienced by data encoded on the non-upgraded wavelengths. This increases receiver sensitivity without the use of expensive opto-electronic components. In one embodiment, Reed-Solomon coding is employed on the upgraded wavelengths and no error correction coding is employed on the remaining wavelengths. These techniques may also be applied to new WDM links carrying channels with disparate bit rates.

摘要翻译： 提供了以最小的费用将WDM链路中的选定波长升级到更高数据速率的系统和方法。 使用错误校正编码技术，使得编码到升级波长上的数据经历比在非升级波长上编码的数据经历的编码增益更高的编码增益。 这增加了接收机灵敏度，而不使用昂贵的光电组件。 在一个实施例中，Reed-Solomon编码被用于升级后的波长，并且在其余波长上不采用纠错编码。 这些技术也可以应用于携带具有不同比特率的信道的新的WDM链路。

公开(公告)号：US07142745B1

公开(公告)日：2006-11-28

申请号：US10253096

申请日：2002-09-24

申请人： Jeff Hamilton-Gahart

发明人： Jeff Hamilton-Gahart

IPC分类号： G02B6/28

CPC分类号： H04J14/0227 ,  H04J14/0201 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/0286

摘要： Optical signals may be carried to and from a ring without the use of chromatic dispersion compensation. In one embodiment, a WDM ring incorporates chromatic dispersion compensation and carries wavelength-multiplexed optical signals with disparate data rates. At least one optical signal is transmitted away from the ring along a link that does not incorporate chromatic dispersion compensation. For example, the ring may carry both OC-192 (10 Gbps) and OC-48 (2.5 Gbps) optical signals with one or more OC-48 signals being transmitted away from the ring without the use of chromatic dispersion compensation. The OC-48 signal reach is not dispersion-limited due to the chromatic dispersion compensation applied within the ring.

摘要翻译： 光信号可以携带到环路上，而不需要使用色散补偿。 在一个实施例中，WDM环包含色散补偿并且携带具有不同数据速率的波分复用光信号。 沿着不包含色散补偿的链路将至少一个光信号从环路传输离开。 例如，该环可携带OC-192（10Gbps）和OC-48（2.5Gbps）光信号，其中一个或多个OC-48信号远离环传输，而不使用色散补偿。 由于在环内施加的色散补偿，OC-48信号到达不受色散限制。

公开(公告)号：US20060133826A1

公开(公告)日：2006-06-22

申请号：US11023144

申请日：2004-12-22

申请人： Jeff Hamilton-Gahart

发明人： Jeff Hamilton-Gahart

IPC分类号： H04B10/06

CPC分类号： H04B10/66

摘要： An apparatus for protecting an optical receiver from high power optical signals is disclosed. The apparatus generally includes an optical receiver and a semiconductor optical device configured to receive optical signals and transmit the signals to the optical receiver and operable to decrease amplitude of an input signal received at the device above a predetermined power level range. The apparatus further includes a controller operable to increase attenuation of the semiconductor optical device such that the signal transmitted to the optical receiver from the semiconductor optical device is at an optimum power level for the optical receiver.

摘要翻译： 公开了一种用于保护光接收机免受高功率光信号的设备。 该装置通常包括光接收器和半导体光学器件，其被配置为接收光信号并且将信号发送到光接收器并且可操作以将在器件处接收的输入信号的幅度降低到高于预定功率电平范围。 该装置还包括可操作以增加半导体光学器件的衰减的控制器，使得从半导体光学器件传输到光接收器的信号处于光接收器的最佳功率电平。