Abstract
An InP based quantum cascade laser (QCL) heterostructure emitting around 5 μm is grown with gas-source molecular beam epitaxy. The QCL core design takes a shallow-well approach to maximize the characteristic temperatures, T 0 and T1, for operations above room temperature. A T 0 value of 383 K and a T1 value of 645 K are obtained within a temperature range of 298-373 K. In room temperature continuous wave operation, this design gives a single facet output power of 3 W and a wall plug efficiency of 16% from a device with a cavity length of 5 mm and a ridge width of 8 μm.
Original language | English (US) |
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Article number | 251104 |
Journal | Applied Physics Letters |
Volume | 97 |
Issue number | 25 |
DOIs | |
State | Published - Dec 20 2010 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)