Abstract
GaInAsSb-GaSb strained quantum-well (QW) ridge waveguide diode lasers emitting in the wavelength range from 2.51 to 2.72 μm have been grown by molecular beam epitaxy. The devices show ultralow threshold current densities of 44 A/cm2 (L → ∞) for a single QW device at 2.51 μm, which is the lowest reported value in continuous-wave operation near room temperature (15 °C) at this wavelength. The devices have an internal loss of 3 cm-1 and a characteristic temperature of 42 K. By using broader QWs, wavelengths up to 2.72 μm could be achieved.
| Original language | English |
|---|---|
| Pages (from-to) | 1106-1108 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 21 |
| Issue number | 16 |
| DOIs | |
| State | Published - 15 Aug 2009 |
Keywords
- Optical spectroscopy
- Quantum-well (QW) lasers
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