Abstract
We report on AlGaInAs quantum-dot laser structures emitting at similar to 760 nm with basic device characteristics comparable to state-of-the-art quantum-well lasers. Distributed-feedback laser diodes have been processed emitting in the center of the oxygen A-absorption band. Typical threshold currents of 34 mA (1-mm-long devices), slope efficiencies of 0.33 W/A per facet, and sidemode suppression ratios of 40 dB have been measured at room temperature in continuous-wave mode. Single-mode emission with a maximum output power >= 20 mW has been achieved for temperatures up to 55 degrees C.
Original language | English |
---|---|
Pages (from-to) | 1380-1382 |
Number of pages | 3 |
Journal | IEEE Photonics Technology Letters |
Volume | 19 |
Issue number | 17-20 |
DOIs | |
Publication status | Published - 2007 |
Keywords
- AlGaInAs quantum dots (QDs)
- distributed feedback (DFB) lasers
- epitaxial growth
- quantum-dot (QD) lasers
- MU-M
- DIODES
- TEMPERATURE