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Proceedings Paper

Ridge waveguide 1.55-um DFB lasers with uncooled 10-Gb/s operation at 55 degrees C
Author(s): Aeneas B. Massara; Kevin A. Williams; Richard V. Penty; Ian H. White; Frank H. G. M. Wijnands; Paul Crump
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Paper Abstract

Uncooled direct modulation of a 1.55 micrometers distributed feedback (DFB) laser is demonstrated at 10 Gbit/s is demonstrated. The small signal performance of the laser at 25 degree(s)C gives rise to a -3 dB bandwidth in excess of 9 GHz, reducing to 8 GHz at 55 degree(s)C. Under uncooled, direct modulation at 10 Gbit/s the back-to-back eye diagrams obtained at temperatures up to 55 degree(s)C are found to be open, with extinction ratios of 6 dB for a peak-to-peak current swing of 40 mA. Transmission at 10 Gbit/s over standard singlemode fiber, is demonstrated over 12 km with the uncooled device. Using this device, multi-level coding is demonstrated at 20 Gb/s, and transmission at 5 Gb/s over 700 m of multi-mode fiber at 60 degree(s)C.

Paper Details

Date Published: 18 April 2000
PDF: 6 pages
Proc. SPIE 3947, In-Plane Semiconductor Lasers IV, (18 April 2000); doi: 10.1117/12.382100
Show Author Affiliations
Aeneas B. Massara, Univ. of Bristol (United Kingdom)
Kevin A. Williams, Univ. of Bristol (United Kingdom)
Richard V. Penty, Univ. of Bristol (United Kingdom)
Ian H. White, Univ. of Bristol (United Kingdom)
Frank H. G. M. Wijnands, Agilent Technologies (UK) and JDS Uniphase (United Kingdom)
Paul Crump, Agilent Technologies (United States)

Published in SPIE Proceedings Vol. 3947:
In-Plane Semiconductor Lasers IV
Luke J. Mawst; Ramon U. Martinelli, Editor(s)

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