Ultralow-threshold cryogenic vertical-cavity surface-emitting laser

Data are presented characterizing a low-threshold vertical-cavity surface-emitting laser designed for cryogenic operation. A threshold current of 12 μA and current density of 25 A/cm 2 are obtained at 77 K with the low-loss cavity design. From 77 K to 160 K, the threshold increases linearly with tem...

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Bibliographic Details
Published in:IEEE photonics technology letters 2000-01, Vol.12 (1), p.1-3
Main Authors: Zou, Z., Huffaker, D.L., Deppe, D.G.
Format: Article
Language:English
Subjects:
Cryogenics
Density
Estimates
Excitons
Holes
Laser transitions
Optical interconnections
Photonics
Quantum dot lasers
Quantum well lasers
Quantum wells
Semiconductor laser arrays
Surface emitting lasers
Threshold current
Threshold currents
Thresholds
Vertical cavity surface emission lasers
Vertical cavity surface emitting lasers
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Summary:Data are presented characterizing a low-threshold vertical-cavity surface-emitting laser designed for cryogenic operation. A threshold current of 12 μA and current density of 25 A/cm 2 are obtained at 77 K with the low-loss cavity design. From 77 K to 160 K, the threshold increases linearly with temperature, but only approximately tracks the detuning of the cavity resonance from the minimum energy transition of the quantum well. At 77 K, we estimate that the 25-A/cm 2 threshold current density is about twice that required for transparency.
ISSN:1041-1135
1941-0174
DOI:10.1109/68.817427