Abstract
Single-mode tunable quantum-cascade distributed feedback lasers emitting at 4.6-4.7 μm wavelength are reported. The lasers employ strained heterostructure material with global strain compensation to provide the large band offset needed for high-performance short wavelength operation. Pulsed, continuously tunable single-mode emission is achieved from 90 to 300 K with a tuning range of 65 nm. Peak output power levels of 100 mW at room temperature are obtained. In continuous-wave operation, current tunable single-mode emission is demonstrated around liquid-nitrogen temperature with a tuning range of 20 nm (over a current range of 450 mA). The maximum output power in continuous wave at 80 K is 150 mW.
Original language | English (US) |
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Pages (from-to) | 1092-1094 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 76 |
Issue number | 9 |
DOIs | |
State | Published - Feb 28 2000 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)