CW 0.5-W 1.52-μm digital alloy AlGaInAs-InP multiple-quantum-well lasers

Du Chang Heo, Jin Dong Song, Il Ki Han, Jung Il Lee, Jichai Jeong, Jong Min Kim, Yong Tak Lee

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

AlGaInAs/InGaAs multiple-quantum-well (MQW) 1.52-μm laser diodes are fabricated. The Al-GaInAs barrier is grown by using a digital alloy molecular beam epitaxy technique and is lattice-matched to InP. An internal loss of 13 cm-1, an internal quantum efficiency of 41 %, and a threshold current density of 0.88 kA/cm2 are obtained from broad-area lasers. The characteristic temperature is constant at 70 K up to 50 °C and then decreases to 60 K in the range of 50 - 90 °C. A single-uncoated-facet CW output power as high as 0.5 W is demonstrated, which is the first room-temperature operation of the digital alloy 1.5-μm AlGaInAs material system.

Original languageEnglish
Pages (from-to)51-54
Number of pages4
JournalJournal of the Korean Physical Society
Volume43
Issue number1
Publication statusPublished - 2003 Jul 1

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quantum well lasers
threshold currents
quantum efficiency
flat surfaces
molecular beam epitaxy
semiconductor lasers
quantum wells
current density
output
room temperature
lasers
temperature

Keywords

  • AlGaInAs
  • Digital Alloy
  • MQWs

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Heo, D. C., Song, J. D., Han, I. K., Lee, J. I., Jeong, J., Kim, J. M., & Lee, Y. T. (2003). CW 0.5-W 1.52-μm digital alloy AlGaInAs-InP multiple-quantum-well lasers. Journal of the Korean Physical Society, 43(1), 51-54.

CW 0.5-W 1.52-μm digital alloy AlGaInAs-InP multiple-quantum-well lasers. / Heo, Du Chang; Song, Jin Dong; Han, Il Ki; Lee, Jung Il; Jeong, Jichai; Kim, Jong Min; Lee, Yong Tak.

In: Journal of the Korean Physical Society, Vol. 43, No. 1, 01.07.2003, p. 51-54.

Research output: Contribution to journalArticle

Heo, DC, Song, JD, Han, IK, Lee, JI, Jeong, J, Kim, JM & Lee, YT 2003, 'CW 0.5-W 1.52-μm digital alloy AlGaInAs-InP multiple-quantum-well lasers', Journal of the Korean Physical Society, vol. 43, no. 1, pp. 51-54.
Heo, Du Chang ; Song, Jin Dong ; Han, Il Ki ; Lee, Jung Il ; Jeong, Jichai ; Kim, Jong Min ; Lee, Yong Tak. / CW 0.5-W 1.52-μm digital alloy AlGaInAs-InP multiple-quantum-well lasers. In: Journal of the Korean Physical Society. 2003 ; Vol. 43, No. 1. pp. 51-54.
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AU - Kim, Jong Min

AU - Lee, Yong Tak

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