公开(公告)号：US06856767B2

公开(公告)日：2005-02-15

申请号：US09837855

申请日：2001-04-18

申请人： Mohammad Laham ,  Raj Acharya ,  Roman Antosik ,  Jayantha Das ,  Bharat Dave ,  Chinnabbu Ekambaram ,  Khem Gandhi ,  Frank Hujber ,  David Lowe ,  Frederick Renner ,  Jiten Sarathy ,  Ronald Simprini ,  Boris Stefanov ,  Tan Thai ,  Ravi Vora

发明人： Mohammad Laham ,  Raj Acharya ,  Roman Antosik ,  Jayantha Das ,  Bharat Dave ,  Chinnabbu Ekambaram ,  Khem Gandhi ,  Frank Hujber ,  David Lowe ,  Frederick Renner ,  Jiten Sarathy ,  Ronald Simprini ,  Boris Stefanov ,  Tan Thai ,  Ravi Vora

IPC分类号： H04B10/08 ,  H04J14/02 ,  H04Q11/00

CPC分类号： H04Q11/0005 ,  H04B10/077 ,  H04B10/07955 ,  H04J14/0227 ,  H04J14/0297 ,  H04Q2011/0043 ,  H04Q2011/0083

摘要： The present invention provides an optical signal quality selection system for optimizing the quality of information transmission. The system splits an incoming optical signal into two equal signals. The split signals are evaluated in optical performance monitors, transmitting an electrical output message to a signal selector relating to the quality of the respective signal. A second electrical message is sent from the optical performance generator to an alarm indicator signal generator, which sends an optical signal to the signal selector to drop the one of the split signals and transmit the non-dropped split signal. An unequipped optical signal from an optical idle signal generator is triggered if no active optical signal is being transmitted.

摘要翻译： 本发明提供一种用于优化信息传输质量的光信号质量选择系统。 系统将输入的光信号分成两个相等的信号。 在光学性能监视器中评估分离信号，将电输出消息发送到与各个信号的质量有关的信号选择器。 从光学性能发生器发送第二个电子消息到报警指示符信号发生器，其向信号选择器发送光信号以丢弃分离信号之一并发送未丢弃的分离信号。 如果没有传输有效的光信号，则触发来自光空闲信号发生器的未装备的光信号。

公开(公告)号：US07009210B2

公开(公告)日：2006-03-07

申请号：US09852582

申请日：2001-05-09

申请人： Jithamithra Sarathy ,  Chinnabbu Ekambaram ,  David Lidsky ,  Bharat Dave ,  Boris Stefanov ,  Tan B. Thai ,  Ronald Simprini ,  Julio Martinez ,  Gaurav Naik

发明人： Jithamithra Sarathy ,  Chinnabbu Ekambaram ,  David Lidsky ,  Bharat Dave ,  Boris Stefanov ,  Tan B. Thai ,  Ronald Simprini ,  Julio Martinez ,  Gaurav Naik

IPC分类号： H01L27/15 ,  H01L33/00

CPC分类号： H01L31/101 ,  H01L31/02327 ,  H04B10/07953 ,  H04B10/07955

摘要： A method and apparatus for a tunable optical spectrum analyzer that can measure the optical spectrum of a demultiplexed DWDM signal are presented. The signal level and Optical Signal to Noise Ratio (OSNR) of an individual channel of the DWDM signal can be obtained from the measured optical spectrum. The device employs a rapid tuning and detection technique to obtain the optical spectrum of the incoming signal. In a preferred embodiment the apparatus is fabricated on a single chip resulting in a compact measurement device. Using the device of the preferred embodiment, single channel OSNR can be determined in as small a time interval as approximately 225 microseconds. Using an array of these devices an entire DWDM mixed signal can be monitored as to OP and OSNR in the same time interval.