Intermittent operation of QC-lasers for mid-IR spectroscopy with low heat dissipation: tuning characteristics and driving electronics.

@article{Fischer2014IntermittentOO,
  title={Intermittent operation of QC-lasers for mid-IR spectroscopy with low heat dissipation: tuning characteristics and driving electronics.},
  author={Milan Fischer and B{\'e}la Tuzson and Andreas Hugi and R. Br{\"o}nnimann and Allison L Kunz and St{\'e}phane Blaser and Michel Rochat and Olivier Landry and Antoine M{\"u}ller and Lukas Emmenegger},
  journal={Optics express},
  year={2014},
  volume={22 6},
  pages={7014-27}
}
Intermittent scanning for continuous-wave quantum cascade lasers is proposed along with a custom-built laser driver optimized for such operation. This approach lowers the overall heat dissipation of the laser by dropping its drive current to zero between individual scans and holding a longer pause between scans. This allows packaging cw-QCLs in TO–3 housings with built-in collimating optics, thus reducing cost and footprint of the device. The fully integrated, largely analog, yet flexible laser… CONTINUE READING

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