A Fully Integrated 10-Gb/s Receiver With Adaptive Optical Dispersion Equalizer in 0.13-μm CMOS

Author

Momtaz, Afshin ; Chung, David ; Kocaman, Namik ; Cao, Jun ; Caresosa, Mario ; Zhang, Bo ; Fujimori, Ichiro

Author_Institution

Broadcom, Irvine, CA

Volume

42

Issue

4

fYear

2007

fDate

4/1/2007 12:00:00 AM

Firstpage

872

Lastpage

880

Abstract

A 10 Gb/s receiver, containing an adaptive equalizer, a clock and data recovery, and a de-multiplexer, is implemented in 0.13-mum CMOS. The chip is intended for long-haul optical fiber links where chromatic and polarization mode dispersions are reach-limiting factors. The equalization is performed by a continuous time filter and a two-tap decision feedback equalizer while automatic threshold and phase adjustments are embedded in the CDR. Use of an analog equalizer with digital adaptation garners total power dissipation of 950 mW. Error-free operation over 200 km of single mode fiber is demonstrated. With 140 km of single mode fiber, optical signal to noise ratio penalty is only 2dB. Differential group delay of 100 ps can also be tolerated

Keywords

CMOS integrated circuits; adaptive equalisers; continuous time filters; decision feedback equalisers; demultiplexing equipment; optical fibre dispersion; optical fibre networks; optical receivers; 0.13 micron; 10 Gbit/s; 140 km; 950 mW; CMOS chip; adaptive optical dispersion equalizer; analog equalizer; automatic threshold adjustments; chromatic mode dispersion; clock; continuous time filter; data recovery; delay-locked loop; demultiplexer circuit; digital adaptation; fully integrated receiver; long-haul optical fiber links; phase adjustments; polarization mode dispersions; single mode fiber; two-tap decision feedback equalizer; Adaptive optics; Decision feedback equalizers; Integrated optics; Optical feedback; Optical fiber dispersion; Optical fiber polarization; Optical fibers; Optical filters; Optical receivers; Polarization mode dispersion; Adaptive equalizer; continuous-time filter; decision feedback equalizer; delay-locked loop; optical dispersion; single mode fiber;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/JSSC.2007.892166

Filename

4140593