TITLE

88 °C, continuous-wave operation of apertured, intracavity contacted, 1.55 μm vertical-cavity surface-emitting lasers

AUTHOR(S)
Nakagawa, S.; Hall, E.; Almuneau, G.; Kim, J. K.; Buell, D. A.; Kroemer, H.; Coldren, L. A.
PUB. DATE
March 2001
SOURCE
Applied Physics Letters;3/5/2001, Vol. 78 Issue 10, p1337
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We demonstrate a lattice-matched 1.55 μm vertical-cavity surface-emitting laser operating continuous wave up to 88 °C. The laser employs AlAsSb-based mirrors, which provide high reflectivity and lattice matching to InP. The poor electrical and thermal conductivity of these mirrors is circumvented by utilizing an InP double-intracavity contacted structure. Benefits of the intracavity contacts are addressed by comparing the characteristics with the alternative contact scheme where current is injected through the Sb-based mirrors. Current and optical confinement is provided by an undercut aperture. The device shows a threshold current of 800 μA, a differential efficiency of 23%, and a maximum output power of over 1 mW at 20 °C. © 2001 American Institute of Physics.
ACCESSION #
4710382

 

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