LASING WITHOUT INVERSION: GAIN AND SATURATION

LUO ZHEN-FEI; XU ZHI-ZHAN; LIN FU-CHENG

doi:10.7498/aps.43.219

Abstract
The solution for the equations of atomic density matrix is obtained, without resorting to any approximation, in the Ξ-type of three-level system with lower-level coherence. The conditions on pumping are analyzed in the strong-coherence case for lasing without inversion and the saturation term is derived.
Authors and contacts
LUO ZHEN-FEI,

XU ZHI-ZHAN,

LIN FU-CHENG

1.
中国科学院上海光学精密机械研究所
References

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[11]	FAN YA-JING, HU XIANG-MING. ATOMIC COHERENCE CREATED BY SPONTANEOUS EMISSION IN A Λ SYSTEM:LASING WITHOUT INVERSION. Acta Physica Sinica, 1999, 48(12): 2241-2245. doi: 10.7498/aps.48.2241
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[13]	HU XIANG-MING, WANG DE-XIN. ATOMIC COHERENCE INDUCED BY TWO-PHOTON PROCESS——TRANSITION FROM LASING WITH INVERSION TO LASING WITHOUT INVERSION. Acta Physica Sinica, 1997, 46(1): 61-68. doi: 10.7498/aps.46.61
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[20]	FAN AN-FU, GAO ZHI. GAIN SATURATION EFFECTS IN NONEQUILIBRIUM GAS FLOW AND CHEMICAL LASERS. Acta Physica Sinica, 1993, 42(3): 407-416. doi: 10.7498/aps.42.407

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Vol. 43, Issue 2 - 1994-01-20

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