Title :
Fast Power Transient Management for OC-192 WDM Add/Drop Networks
Author :
Bae, Hyeon-Min ; Ashbrook, Jonathan ; Shanbhag, Naresh ; Singer, Andrew
Author_Institution :
Finisar Corp., Champaign, IL
Abstract :
This paper describes a fast power transient management functionality incorporated into a 12.5 Gb/s maximum likelihood sequence estimation (MLSE) receiver for optical add/drop multiplexer (OADM)-based WDM networks. The receiver has a VGA with a fast automatic gain control and a high-bandwidth offset cancellation loop. Measured results indicate that the receiver IC tolerates a 10 dB/10 mus optical power transient with 72 consecutive identical digits with no BER impact, and offers a 100 X improvement over a standard CDR in tracking an 8 dB sinusoidal power transient at a BER of 10-4 .
Keywords :
amplifiers; maximum likelihood estimation; multiplexing equipment; optical receivers; wavelength division multiplexing; CDR; VGA; WDM networks; automatic gain control; bit rate 12.5 Gbit/s; clock and data recovery; fast power transient management; high-bandwidth offset cancellation loop; maximum likelihood sequence estimation; optical add-drop multiplexer; receiver; variable gain amplifier; Add-drop multiplexers; Bit error rate; Energy management; Gain control; Maximum likelihood estimation; Optical add-drop multiplexers; Optical fiber networks; Optical receivers; WDM networks; Wavelength division multiplexing; Clock and data recovery (CDR); OC-192; electronic dispersion compensation (EDC); maximum likelihood sequence estimation (MLSE); variable gain amplifier (VGA);
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2008.2006226
