发明名称 |
SYSTEM AND METHOD FOR MEASURING IN-BAND CROSS-TALK IN OPTICAL COMMUNICATION SYSTEMS |
摘要 |
A method of and system for estimating the bit error rate of a channel in an optical communication system includes a method of and system for measuring the in-band cross-talk of the channel in a wavelength division multiplexed system. A single channel is selected from the plurality of channels in the optical communication system. The signal in this single channel is passed to a digital signal processor proportional to the time rate of change of a phase of an optical source generating the signal. The digital signal processor converts the filtered signal into the frequency domain, and a spectrum analyzer determines the features of the in-band cross-talk from the signal in the frequency domain. The features of the in-band cross-talk may be combined with other measured noise features, such as the power spectral density, to estimate BER.
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申请公布号 |
US2004052523(A1) |
申请公布日期 |
2004.03.18 |
申请号 |
US20010758219 |
申请日期 |
2001.01.12 |
申请人 |
YADLOWSKY MICHAEL JOHN;KROL MARK FRANCIS;HARRIS J. MICHAEL |
发明人 |
YADLOWSKY MICHAEL JOHN;KROL MARK FRANCIS;HARRIS J. MICHAEL |
分类号 |
H04B10/02;H04B10/08;H04J14/02;(IPC1-7):H04B10/08;H04B10/18 |
主分类号 |
H04B10/02 |
代理机构 |
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主权项 |
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