TITLE

Optical in-well pumping of a vertical-external-cavity surface-emitting laser

AUTHOR(S)
Schmid, Marc; Benchabane, Sarah; Torabi-Goudarzi, Firuz; Abram, Richard; Ferguson, Allister I.; Riis, Erling
PUB. DATE
June 2004
SOURCE
Applied Physics Letters;6/14/2004, Vol. 84 Issue 24, p4860
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A scheme is demonstrated for optical pumping of a vertical-external-cavity surface-emitting laser. The scheme is based on absorption of the pump light within the wells of the multiple-quantum-well gain structure rather than the conventional approach of absorption of a shorter wavelength in the barrier regions. The operation of a laser around 850 nm pumped by an 808 nm source demonstrates the potential of this technique for allowing operation at a significantly shorter range of wavelengths for these devices in general and specific application of high-brightness pump lasers for devices in this spectral region. A further advantage is the smaller quantum defect which results in reduced heating of the gain medium. These advantages are achieved while maintaining a slope efficiency of up to 18%, which is comparable to results obtained with a traditional pumping scheme with a similar gain medium. © 2004 American Institute of Physics.
ACCESSION #
13269875

 

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