Referenced Items are not available for this document.
Very low threshold current density operation of triple quantum well vertical-cavity surface-emitting lasers (VCSELs) is reported. The active wells are strained In/sub 0.24/Ga/sub 0.76/As in GaAs. Devices from the same wafer operate at room temperature over a wavelength range of 958-1042 nm, with a minimum threshold current density of 366 A-cm/sup -2/ at 1018 nm. The dependence of threshold current on wavelength gives an insight into the optical gain spectrum of the quantum wells. It was shown that 50- mu m-diameter devices operate CW without heatsinking.<
Published in:
Photonics Technology Letters, IEEE
(Volume:4
,
Issue:
11
)
Date of Publication: Nov. 1992
- Page(s):
- 1192 - 1194
- ISSN :
- 1041-1135
- INSPEC Accession Number:
- 4345845
- Digital Object Identifier :
- 10.1109/68.166938
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Nov. 1992
- Sponsored by :
- IEEE Photonics Society
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