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Gain and lifetime of GaInNAsSb narrow ridge waveguide laser diodes in continuous-wave operation at 1.56 μm

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7 Author(s)
Gupta, J.A. ; Institute for Microstructural Sciences, National Research Council of Canada, Ottawa, Ontario K1A 0R6, Canada ; Barrios, P.J. ; Caballero, J.A. ; Poitras, D.
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The continuous-wave (cw) operation of GaInNAsSb lasers at 1560 nm is reported. Light-current measurements were made before and after a 100 h cw burn in at 20 °C, during which a 3×890 μm2 device with 72 mA initial threshold current and 14 mW maximum output power experienced a 15% drop in peak output power. These preliminary lifetime results provide insight into the reliability of GaInNAsSb active regions and reinforce the promise of this material for C-band devices. High-resolution modal gain spectra were extracted from the amplified spontaneous emission spectra acquired after the burn in, providing reliable values for the internal loss, transparency current, and differential gain.

Published in:

Applied Physics Letters  (Volume:89 ,  Issue: 15 )

Date of Publication:

Oct 2006

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