| Issue |
Europhys. Lett.
Volume 45, Number 3, February 1999
|
|
|---|---|---|
| Page(s) | 307 - 313 | |
| Section | Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics | |
| DOI | https://doi.org/10.1209/epl/i1999-00164-y | |
| Published online | 01 September 2002 | |
Atomic interference in a microchip laser operating on a Λ transition
1
Department of Applied Physics, School of Engineering, Tokai University
1117 Kitakaname, Hiratsuka, Kanagawa, 259-12 Japan
2
Institute for Laser Physics - 199034 St. Petersburg, Russia
3
Optique Nonlinéaire Théorique, Université Libre de Bruxelles
Campus Plaine C.P. 231, B-1050 Brussels, Belgium
Received:
11
September
1998
Accepted:
27
November
1998
In a 
microchip laser pumped by a diode laser, atomic
interference arise due to the simultaneous oscillation on two transitions
forming a 
configuration. For a microchip laser, the low-frequency
coherence is an important dynamical variable. It is coupled to the low
spatial frequency of the population inversion grating. This results in modal
intensities which are self-pulsing while the total intensity remains nearly
constant. In addition, the modal power spectra display combinations of the
relaxation oscillation frequencies which are absent in the power spectrum of
the total output power.
PACS: 42.50.Gy – Effects of atomic coherence on propagation, absorption, and amplification of light / 42.60.Mi – Dynamical laser instabilities; noisy laser behavior
© EDP Sciences, 1999
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