发明申请
- 专利标题: Method of monitoring and controlling the bit error rate (BER) in an optical communication network
- 专利标题(中): 监测和控制光通信网络中的误码率(BER)的方法
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申请号: US11031644申请日: 2005-01-07
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公开(公告)号: US20050135730A1公开(公告)日: 2005-06-23
- 发明人: David Welch , Radhakrishnan Nagarajan , Fred Kish , Mark Missey , Vincent Dominic , Atul Mathur , Frank Peters , Charles Joyner , Richard Schneider , Ting-Kuang Chiang
- 申请人: David Welch , Radhakrishnan Nagarajan , Fred Kish , Mark Missey , Vincent Dominic , Atul Mathur , Frank Peters , Charles Joyner , Richard Schneider , Ting-Kuang Chiang
- 申请人地址: US CA Sunnyvale
- 专利权人: Infinera Corporation
- 当前专利权人: Infinera Corporation
- 当前专利权人地址: US CA Sunnyvale
- 主分类号: G02B6/12
- IPC分类号: G02B6/12 ; G02B6/34 ; G02F1/017 ; H01S5/026 ; H01S5/0625 ; H01S5/0683 ; H01S5/12 ; H01S5/20 ; H01S5/22 ; H01S5/34 ; H01S5/40 ; H01S5/50 ; H04B10/12 ; H04B10/145 ; H04B10/158 ; H04B10/17 ; H04J14/02
摘要:
A method is disclosed for monitoring and controlling the bit error rate (BER) in an optical communication network where an optical receiver in the optical transmission network is a monolithic photonic integrated circuit (RxPIC) chip. The method includes the steps of decombining on-chip a combined channel signal received from the network and then monitoring a real time bit error rate (BER) of a decombined channel signal. The determined BER is then communicated, such as through an optical service channel (OSC) to an optical transmitter source that is the source of origin of the channel signal. Based upon the determined BER, the chirp of a channel signal modulator at the optical transmitter source that generated the monitored channel signal is adjusted by, for example, adjusting its bias. The same channel signal received at the RxPIC chip can be monitored again to determine if an acceptable level for the BER has been achieved by the previous chirp adjustment.