TITLE

Above-room-temperature optically pumped 4.12 μm midinfrared vertical-cavity surface-emitting lasers

AUTHOR(S)
Zhao, F.; Wu, H.; Jayasinghe, Lalith; Shi, Z.
PUB. DATE
February 2002
SOURCE
Applied Physics Letters;2/18/2002, Vol. 80 Issue 7, p1129
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Optically pumped lead salt vertical-cavity surface-emitting lasers (VCSELs) with a nine period PbSe/PbSrSe quantum well active region operating above room temperature in pulsed mode are reported. The gain peak and cavity mode of the VCSEL structure are in resonance at 300 K. A power output of 40 mW is obtained at room temperature and it does not show saturation. The room-temperature threshold pump density is 200 kW/cm[SUP 2]. The lasing wavelength of λ=4.12 μm remains nearly constant over a temperature range of 280-310 K.
ACCESSION #
6112392

 

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