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Four-wave mixing in a quantum cascade laser amplifier.
- Source :
- Applied Physics Letters; 6/3/2013, Vol. 102 Issue 22, p222104-222104-4, 1p, 1 Diagram, 3 Graphs
- Publication Year :
- 2013
-
Abstract
- We present the direct observation of four-wave mixing over a detuning range of more than 3 THz in an InGaAs/AlInAs strain-compensated quantum cascade laser (QCL) amplifier emitting at 4.3 μm by simultaneous injection of a single mode QCL and a broadly tunable source. From its intensity, we determine a χ<superscript>(3)</superscript> of 0.9 × 10-15 m2 V-2, in good agreement with transport model simulations based on the density matrix approach. This four-wave-mixing mechanism is an important driving factor in mode proliferation occurring in connection with the recent demonstration of comb generation in broadband QCLs. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 102
- Issue :
- 22
- Database :
- Complementary Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 88041315
- Full Text :
- https://doi.org/10.1063/1.4807662