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Characteristics of InGaN Multiquantum-Well-Structure Laser Diodes

Published online by Cambridge University Press:  10 February 2011

Shuji Nakamura*
Affiliation:
Department of Research and Development, Nichia Chemical Industries, Ltd., 491 Oka, Kaminaka, Anan, Tokushima 774, Japan, [email protected]
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Abstract

The continuous-wave (CW) operation of InGaN multi-quantum-well-structure laser diodes (LDs) was demonstrated at room temperature (RT) with a lifetime of 35 hours. The threshold current and the voltage of the LDs were 80 mA and 5.5 V, respectively. The threshold current density was 3.6 kA/cm2. Longitudinal modes with a mode separation of 0.042 nm were observed under CW operation at RT. When the temperature of the LDs was varied, large mode hopping of the emission wavelength was observed. The carrier lifetime and the threshold carrier density were estimated to be 10 ns and 2 × 1020/cm3, respectively. The beam full width at half-power values for the parallel and the perpendicular near-field patterns were 1.6 µm and 0.8 µm, respectively. Those of the far-field patterns were 6.8° and 33.6°, respectively.

Type
Research Article
Copyright
Copyright © Materials Research Society 1997

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References

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