Abstract
We experimentally study the coherence time of a below-threshold Raman laser in which the gain medium is a gas of magneto-optically trapped atoms. The second-order optical coherence exhibits photon bunching with a correlation time that is varied by two orders of magnitude by controlling the gain. Results are in good agreement with a simple analytic model that suggests the effect is dominated by gain, rather than dispersion, in this system. Cavity ring-down measurements show the photon lifetime, related to the first-order coherence time, is also increased.
| Original language | English |
|---|---|
| Pages (from-to) | 5448-5451 |
| Number of pages | 4 |
| Journal | Optics Letters |
| Volume | 45 |
| Issue number | 19 |
| DOIs | |
| Publication status | Published - 25 Sept 2020 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
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Data supporting the publication "Coherence time of a cold-atom laser below threshold"
Goldwin, J. (Creator), University of Birmingham, 27 Aug 2020
DOI: https://doi.org/10.25500/edata.bham.00000542
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