Free-running frequency stability of mid-infrared quantum cascade lasers
2002; Optica Publishing Group; Volume: 27; Issue: 3 Linguagem: Inglês
10.1364/ol.27.000170
ISSN1539-4794
AutoresTanya L. Myers, R.M. Williams, Matthew S. Taubman, Claire Gmachl, Federico Capasso, D. L. Sivco, James N. Baillargeon, A. Y. Cho,
Tópico(s)Atmospheric Ozone and Climate
ResumoThe intrinsic frequency fluctuations of two single-mode quantum cascade (QC) distributed-feedback lasers operating continuously at a wavelength of 8.5 mum are reported. A Doppler-limited rovibrational resonance of nitrous oxide is used to transform the frequency noise into measurable intensity fluctuations. The QC lasers, along with recently improved current controllers, exhibit a free-running frequency stability of 150 kHz over a 15-ms time interval.
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