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Proceedings Paper

State-of-the-art aluminium-free 980-nm laser diodes
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Paper Abstract

InGaAs/GaInAsP/GaInP ridge waveguide 980-nm laser diodes for pumping light into erbium doped fiber amplifiers are reviewed. These lasers have very good performance characteristics. They exhibit kink-free, single mode emission up to a power of 250 mW with a slope efficiency of 0.7 to 0.95 W/A, a thermally limited maximum power of 450 - 500 mW, and the threshold current density of about 150 A/cm2. They are relatively stable against temperature variations. A 100 mW power from a fiber-pigtail module has been demonstrated. The lasers withstand severe thermal roll-over tests without showing degradation effects. Preliminary lifetime tests indicate that their mean-time-to-failure may be very high if not limited by sudden failure, from several hundred thousand to one million hours.

Paper Details

Date Published: 12 April 1996
PDF: 8 pages
Proc. SPIE 2682, Laser Diodes and Applications II, (12 April 1996); doi: 10.1117/12.237656
Show Author Affiliations
Markus Pessa, Tampere Univ. of Technology (Finland)
Jari T. Nappi, Tampere Univ. of Technology (Finland)
Pekka Savolainen, Tampere Univ. of Technology (Finland)
Alexander Ovtchinnikov, Tampere Univ. of Technology (Finland)
Mika Toivonen, Tampere Univ. of Technology (Finland)
Richard F. Murison, EG&G Canada Ltd. (Canada)
Harry M. Asonen, Tutcore Ltd. (Finland)


Published in SPIE Proceedings Vol. 2682:
Laser Diodes and Applications II
Kurt J. Linden; Prasad R. Akkapeddi, Editor(s)

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