TITLE

Self-pulsing 1050 nm quantum dot edge emitting laser diodes

AUTHOR(S)
Haoling Liu; Smowton, Peter; Summers, Huw; Edwards, Gareth; Drexler, Wolfgang
PUB. DATE
September 2009
SOURCE
Applied Physics Letters;9/7/2009, Vol. 95 Issue 10, p101111
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We examine self-pulsing, edge emitting, quantum dot laser diodes as continuous broad spectrum light sources emitting at ∼1050 nm. Devices are configured with split contacts. When operated without a saturable absorber, the laser emits a number of discrete narrow modes, which merge to form a broad continuous lasing spectrum on application of the saturable absorber. The broadened spectra are consistent with the modulated carrier density expected under Q-switched operation. This provides a simple technique for generating emission suitable for biomedical applications. The spectral width achieved is ∼10 nm, and the average output power is 7.5 mW.
ACCESSION #
44150657

 

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