公开(公告)号：US06643466B1

公开(公告)日：2003-11-04

申请号：US09675003

申请日：2000-09-29

申请人： Howard D. Helms ,  Dominick J. Imbesi ,  Steven R. Johnson ,  Gerald Nykolak ,  Dennis M. Romain ,  Paul F. Szajowski

发明人： Howard D. Helms ,  Dominick J. Imbesi ,  Steven R. Johnson ,  Gerald Nykolak ,  Dennis M. Romain ,  Paul F. Szajowski

IPC分类号： H04B1000

CPC分类号： H04B10/564 ,  H04B10/112 ,  H04B10/503

摘要： In the method and apparatus for controlling the power level of a laser signal in free space communication, a communication terminal transmits an output laser beam into free space and also receives information, through a channel that is not free space laser based, about the power of the output laser beam measured at a distance and at different times. The terminal determines whether a drop in the power of the output laser beam measured at the distance is due to atmospheric effects based on the received information. The terminal increases the power level of the output laser beam to a desired level if the power drop is determined to be due to atmospheric effects. On the other hand, the terminal lowers the power of the output laser beam to a predetermined level if the power drop is determined to be due to blockage thus avoiding harm to accidental observers that might intrude into the path of the laser beams.

摘要翻译： 在用于控制自由空间通信中的激光信号的功率电平的方法和装置中，通信终端将输出激光束发射到自由空间中，并且通过不是以自由空间激光为基础的信道来接收信息， 在一段距离和不同时间测量输出激光束。 终端确定在距离处测量的输出激光束的功率的下降是否是由于基于所接收的信息的大气影响。 如果确定功率降是由于大气效应，则端子将输出激光束的功率电平增加到期望的水平。 另一方面，如果断电被确定为由于阻塞而导致输出激光束的功率降低到预定水平，从而避免对可能侵入到激光束路径中的意外观测器的危害。

公开(公告)号：US08086103B2

公开(公告)日：2011-12-27

申请号：US10835086

申请日：2004-04-29

申请人： Marc J. Beacken ,  Dominick J. Imbesi

发明人： Marc J. Beacken ,  Dominick J. Imbesi

IPC分类号： H04L12/28 ,  H04B10/16

CPC分类号： H04Q11/0062 ,  H04Q2011/0064 ,  H04Q2011/0075

摘要： Dynamic optical wavebands are disclosed that allow a plurality of user streams having a common destination node to be positioned in a substantially adjacent non-overlapping manner on a spectrum for treatment as a routable entity. Each waveband has an associated center wavelength and spectral extent. The plurality of user streams can optionally be encrypted using a corresponding cipher. Wavebands that are received by a network node are filtered so that individual wavebands can be isolated, if necessary. For example, individual wavebands can be switched to an appropriate output node for forwarding in the optical network. In addition, the center wavelength and spectral extent of a waveband can be converted, if necessary, to position the waveband substantially spectrally adjacent to another waveband sharing a common path portion. In this manner, the substantially spectrally adjacent wavebands can be treated as an aggregated waveband for the common portion of a path. The disclosed wavebands can be processed only as an optical signal. The center wavelength, spectral extent and routing information associated with each waveband can optionally be processed as out-of-band signals.

摘要翻译： 公开了允许具有公共目的地节点的多个用户流以基本上相邻的非重叠方式定位在用于作为可路由实体进行治疗的频谱上的动态光波段。 每个波段具有相关联的中心波长和光谱范围。 可以可选地使用相应的密码来加密多个用户流。 如果需要，由网络节点接收的波段被滤波，以便各个波段可被隔离。 例如，可以将各个波段切换到适当的输出节点，以在光网络中转发。 此外，如果需要，可以转换波段的中心波长和频谱范围，以使波段基本上与共享公共路径部分的另一个波段频谱相邻。 以这种方式，基本上光谱相邻的波段可以被视为路径的公共部分的聚集波段。 所公开的波段只能作为光信号进行处理。 与每个波段相关联的中心波长，频谱范围和路由信息可以可选地被处理为带外信号。