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Compact wavelength-selective switch for gigabit filtering in access networks

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5 Author(s)
Geuzebroek, D. ; Univ. of Twente, Enschede, Netherlands ; Klein, E. ; Kelderman, H. ; Baker, N.
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A compact [200×200 μm2] wavelength-selective switch based on thermally tunable SiO2--Si3N4 microring resonators has been designed and realized. The switch supports gigabit filtering applications in access networks. Spectral measurements show an ON-OFF ratio of 12 dB and a channel separation of 20 dB. The 10-Gb/s measurements on a single ring show no degradation of the modulated signal and a theoretical BER (bit-error rate) <10/sup -12/.

Published in:

Photonics Technology Letters, IEEE  (Volume:17 ,  Issue: 2 )