摘要 |
An optical monitoring system provides for out-of-band calibration. As a result, calibration can be performed simultaneously with monitoring. This can be used to accomplish faster and/or more accurate scanning. In addition, the need for complex switching and/or multiplexing capabilities can be avoided. The system comprises a signal source of an optical signal having spectrally separated channels, which are distributed within a spectral band, such as a WDM signal. A reference source generates a reference signal outside of the spectral band. A tunable filter filters the optical signal and the reference signal. A reference signal detector then detects the filtered reference signal, while an optical signal detector detects the filtered optical signal.
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申请人 |
AXSUN TECHNOLOGIES, INC.;FLANDERS, DALE, C.;KORN, JEFFREY, A.;WHITNEY, PETER, S. |
发明人 |
FLANDERS, DALE, C.;KORN, JEFFREY, A.;WHITNEY, PETER, S. |