Abstract
A one-dimensional active region consisting of 20-period T-shaped GaAs/AlGaAs quantum wires of 14 x 6nm2 combined with a well-defined current-confinement scheme has been utilized to obtain a low-threshold-current high-efficiency laser. A threshold current as low as 0.27 mA, a single-mode cw output power of 0.13 mW at 1 mA injection current, and a differential quantum efficiency of 12% were achieved at 30 K using a quantum-wire laser with a 500-μm-long Fabry-Perot cavity coatedby high-reflectivity thin metals.
Original language | English (US) |
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Pages (from-to) | L330-L332 |
Journal | Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers |
Volume | 46 |
Issue number | 12-16 |
DOIs | |
State | Published - Apr 13 2007 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Engineering
- General Physics and Astronomy
Keywords
- Cleaved-edge overgrowth
- Current injection
- Low threshold
- Quantum-wire laser
- Single mode