Abstract
Reported are the design and performance of GaInAs/AlInAs/InP quantum cascade laser sources based on intra-cavity second-harmonic generation providing an output at 2.95m wavelength. To produce frequency doubling, devices contain a passive heterostructure tailored for giant optical nonlinearity integrated on top of an active region and patterned for quasi-phase matching. The sources have a threshold current density of 2.2kA/cm2 and provide approximately 35W of second-harmonic output at room temperature. The second-harmonic conversion efficiency is approximately 75 μW/W2.
| Original language | English |
|---|---|
| Pages (from-to) | 667-668 |
| Number of pages | 2 |
| Journal | Electronics Letters |
| Volume | 47 |
| Issue number | 11 |
| DOIs | |
| State | Published - 26 May 2011 |
| Externally published | Yes |
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