Self-pulsing 1050 nm quantum dot edge emitting laser diodes

Haoling Liu, Peter Smowton, Huw Summers, Gareth Edwards, Wolfgang Drexler

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


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.

Original languageEnglish (US)
Article number101111
JournalApplied Physics Letters
Issue number10
StatePublished - 2009

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


Dive into the research topics of 'Self-pulsing 1050 nm quantum dot edge emitting laser diodes'. Together they form a unique fingerprint.

Cite this