Widely tunable electroabsorption-modulated sampled-grating DBR laser transmitter

We report on a widely tunable transmitter based on a sampled-grating distributed Bragg reflector (SG-DBR) laser monolithically integrated with a semiconductor optical amplifier (SOA) and an electroabsorption (EA) modulator. Modulated time-averaged powers in excess of 5 dBm, RF extinction ratios >...

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Bibliographic Details
Published in:	IEEE journal of selected topics in quantum electronics Vol. 8; no. 6; pp. 1349 - 1357
Main Authors:	Akulova, Y.A., Fish, G.A., Ping-Chiek Koh, Schow, C.L., Kozodoy, P., Dahl, A.P., Nakagawa, S., Larson, M.C., Mack, M.P., Strand, T.A., Coldren, C.W., Hegblom, E., Penniman, S.K., Wipiejewski, T., Coldren, L.A.
Format:	Journal Article
Language:	English
Published:	New York IEEE 01-11-2002 The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:	Distributed Bragg reflectors Fiber lasers Laser modes Laser stability Laser tuning Optical transmitters Power lasers Semiconductor lasers Semiconductor optical amplifiers Tunable circuits and devices
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Summary:	We report on a widely tunable transmitter based on a sampled-grating distributed Bragg reflector (SG-DBR) laser monolithically integrated with a semiconductor optical amplifier (SOA) and an electroabsorption (EA) modulator. Modulated time-averaged powers in excess of 5 dBm, RF extinction ratios >10 dB, and error-free transmission at 2.5 Gb/s for 350 km of standard single-mode fiber have been demonstrated across a 40-nm tuning range. In CW mode of operation, the module meets all long-haul system requirements for externally modulated laser sources: stability, power (>10 mW), RIN (<-140 dB/Hz), and linewidth (<2 MHz) over 90 50-GHz spaced ITU channels. Implementation of wavelength, power, and mode control in module firmware ensures long-term stability for system deployment. Systematic investigations of accelerated aging performed on laser tuning and gain sections showed excellent wavelength stability and reliability with median times to failure of >100 yr for output wavelength stability and power across all channels.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	1077-260X 1558-4542
DOI:	10.1109/JSTQE.2002.806677