Talks and Poster Presentations (without Proceedings-Entry):
G. A. Kazakov, Thorsten Schumm:
"Active optical standards using cold atoms: lasing regimes and instabilities";
Poster: 30th European Frequency and Time Forum,
York, United Kingdom;
2016-04-04
- 2016-04-07.
English abstract:
The bad cavity regime of laser operation is characterized by the gain profile being narrower than the linewidth of the cavity mode. The frequency of the emitted radiation of such lasers is robust with respect to fluctuations of the cavity length, which opens the possibility to create a highly stable active optical frequency reference on the basis of such a bad cavity laser [1-3].
Such a laser may have mHz linewidth and short-term frequency stability better than achievable with modern ultrastable cavity-based frequency references. Active optical frequency
standards may be realized also in less precise but more simple and robust schemes [4] for transportable applications outside the laboratory-based environment.
We investigate the bad cavity laser signal for various configuration. We study how the multilevel structure of real atoms and various inhomogeneous effects influence the main properties of the bad cavity lasers, such as the cavity pulling coefficient, output power and the linewidth. We investigate also the stability domains for cw lasing for various atomic configurations in the presence of different inhomogeneous effects.
References
[1] J. Chen, X. Chen, "Optical lattice laser". Proceedings of the 2005 IEEE Internat. Freq. Control Symposium and Exposition, p. 608-610, 2005.
[2] D. Meiser, J. Ye, D. R. Carlson, and M. J. Holland, "Prospects for a Millihertz-Linewidth Laser". Phys. Rev. Lett., vol. 102, p. 163601, 2009
[3] D. Yu, J. Chen, "Laser theory with finite atom-field interacting time". Phys. Rev. A, vol. 78, p. 013846, 2008
[4] T. Zhang, Y. Wang, X. Zang, W. Zhuang, J. Chen, "Active optical clock based on four-level quantum system." Chin. Sci. Bulletin, vol. 58, p. 2033-2038, 2013
Keywords:
Bad cavity laser, instability, active optical frequency standard
Electronic version of the publication:
http://publik.tuwien.ac.at/files/publik_253096.pdf