A 6Gb/s transceiver with a nonlinear electronic dispersion compensator for directly modulated distributed-feedback lasers

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The directly modulated distributed-feedback laser (DML) is widely employed in medium-reach optical links due to its cost effectiveness. However, DMLs are not appropriate for use in fiber links longer than 20km at 6Gb/s or equivalent, because the SNR penalty increases abruptly due to excessive chromatic dispersion caused by frequency chirp. Therefore externally modulated lasers (EMLs), which are more costly, have been a natural choice for applications requiring extended reach. In this paper, a clock and data recovery (CDR) IC that compensates for chromatic dispersion caused by the frequency chirp of the DML is presented. The CDR with EDC is fabricated in a 90nm CMOS process, and the test-chip consumes 226mW at 6Gb/s.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2014-02-10
Language
English
Citation

International Solid-State Circuits Conference, pp.138 - 139

ISSN
0193-6530
DOI
10.1109/ISSCC.2014.6757371
URI
http://hdl.handle.net/10203/188334
Appears in Collection
EE-Conference Papers(학술회의논문)
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