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Dynamic Sleep-Mode ONU With Self-Sustained Fast-Lock CDR IC for Burst-Mode Power Saving in 10 G-EPON Systems

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4 Author(s)
Suzuki, N. ; Inf. Technol. R&D Center, Mitsubishi Electr. Corp., Kamakura, Japan ; Kobiki, K. ; Igawa, E. ; Nakagawa, J.

A novel power saving optical network unit (ONU) employing a self-sustained fast-lock clock and data recovery (CDR) circuit IC for 10 Gigabit Ethernet passive optical network (10 G-EPON) is presented. With its self-generated quasi-synchronized signal-based bursty CDR control, a fast wake-up time of the ONU within 497 ns supporting heavy-duty dynamic bandwidth allocation (DBA) cycles is fully achieved. A high power consumption reduction efficiency of 63.8%, compared to the typical Doze-mode power saving ONU, was also realized.

Published in:

Photonics Technology Letters, IEEE  (Volume:23 ,  Issue: 23 )