Extended Rate Equations Model for Describing the Dynamics of the Laser Frequency Spectrum |
| M. Eskef
Department of Physics, Atomic Energy Commission of Syria, P.O. Box 6091, Damascus, Syria |
| Received: November 28, 2010; In final form March 30, 2011 |
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| Laser rate equations are written and solved in the frequency domain for homogeneous as well as for inhomogeneous gain. The resulting laser model is capable of describing the fine structure as well as the dynamics of the laser frequency spectrum. The calculation shows that laser lines have a Lorentzian-like lineshape. The linewidth is found to be close to the spectral width of the cavity in case of inhomogeneous gain, whereas it is proved to approach the quantum limit for homogeneous gain. |
| DOI: 10.12693/APhysPolA.121.599 PACS numbers: 42.55.Ah, 42.55.Lt |