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Gain Saturation Effects of a Flowing Chemical Oxygen-Iodine Laser |
| GAO Zhi1; SHEN Yi-Qing1; FAN An-Fu2,3 |
| 1LHD, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080
2Department of Opto-Electronics Science and Technology, Sichuan University, Chengdu 610064
3CASST (World Lab), PO Box 8730, Beijing 100080 |
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| Cite this article: |
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GAO Zhi, SHEN Yi-Qing, FAN An-Fu 2004 Chin. Phys. Lett. 21 1079-1082 |
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Abstract A new oxygen-iodine medium gain model is developed to include pumping and deactivation of the upper laser levels of the iodine atoms, hyperfine and translation relaxation, as well as the flowing effect. The rate equations for gain of a supersonic flowing cw oxygen-iodine laser (COIL) are described when the medium is stimulated by a single-mode field. The general solution of the self-consistency integral equation is obtained. The result shows that the saturation behaviour in low pressure of the COIL differs from both the inhomogeneous and homogeneous broadening, and exhibits an ‘anomalous’saturation phenomenon.
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42.55.Kt
42.55.Lt
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Published: 01 June 2004
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