Browsing by Author "Kao, TC"

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A novel supervisory scheme for OXC based on different time-dilay recognition
(2005-12-01)
Lee, CC
;
Kao, TC
;
Chien, HC
;
Chi, S
;
光電工程學系
A novel supervising technique, based on different time-delay recognition scheme, for monitoring the switch fabric of optical cross-connects is proposed. This method features fast detection, high reliability, fault location, and actual routing information. The supervising of 4 x 4 switch fabric with a detecting time of less than 300 ns was achieved. It is also verified experimentally that the degradation of the system performance caused by this supervising approach is negligible.
Simultaneous optical monitoring and fiber supervising for WDM networks using an OTDR combined with concatenated fiber gratings
(2001-09-01)
Lee, CC
;
Kao, TC
;
Chi, S
;
光電工程學系
;
Department of Photonics
We have proposed a new optical monitoring technique that employs an optical time-domain reflectometer combined with an acoustooptic switch and concatenated fiber Bragg gratings to achieve simultaneous optical monitoring and fiber surveillance for wavelength-division-multiplexed (WDM) networks. The optical power monitoring with dynamic range of 26 dB and accuracy less than or equal to 0.1 dB for each WDM channel and the feasibility of simultaneous optical monitoring and fiber surveillance in WDM networks have also been demonstrated by using this technique.