Abstract
Optimization of the design of broadband quantum cascade lasers for continuous wave (cw) operation was carried out. The improved design leads to a gain ripple of only about 4 cm-1 over more than a 0.5-μm spectral range. It was found that simultaneous cw emission at several wavelengths spanning the range between 6.7 and 7.4 μm is achieved in a temperature interval from 20 to 77 K.
Original language | English (US) |
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Pages (from-to) | 24-26 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 83 |
Issue number | 1 |
DOIs | |
State | Published - Jul 7 2003 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)