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Integrated signal monitoring and connection verification in MEMS optical crossconnects

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3 Author(s)
Lin, L.Y. ; AT&T Labs.-Res., Red Bank, NJ, USA ; Goldstein, E.L. ; Lunardi, L.M.

We propose and demonstrate integrated signal-monitoring and connection-verification schemes for microelectromechanical-system (MEMS) optical crossconnects. The schemes utilize monolithically integrated beamsplitters and hybrid-integrated photodetectors as output signal-monitoring modules. To achieve connection verification, on-chip micromirror dithering is employed to encode optical signals with pilot tones that are used only internally to the crossconnect. The approaches described offer a potentially compact means of implementing several critical network-management and surveillance features.

Published in:

Photonics Technology Letters, IEEE  (Volume:12 ,  Issue: 7 )

Date of Publication:

July 2000

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