Fundamental linewidth in solitary, ultranarrow output PbS1−xSex diode lasers
- 1 October 1983
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 43 (7) , 629-631
- https://doi.org/10.1063/1.94467
Abstract
The fundamental, quantum phase noise limited Lorentzian linewidth was directly measured from the beat‐note spectra generated by heterodyning PbS1−xSex diode lasers with a stable CO gas laser. The experimental results were matched by calculated theoretical line profiles. Linewidths as narrow as 22 kHz full width at half‐maximum power were observed.Keywords
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