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Proceedings Paper

Prospects for a four-level super-radiant laser with ultra-narrow linewidth at 1469 nm based on cesium
Author(s): Yanfei Wang; Caihong Dai; Zhifeng Wu; Xiangzhao Li
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Paper Abstract

We propose a four-level superradiant laser system based on Cs at 1469 nm corresponding to the transition of 7S1/2 and 6P3/2 with a 459.3 nm pumping laser. With density matrix method, we calculate the relative population probabilities at each level theoretically. In a steady state, when the Rabi frequency is set to 3.5 MHz, 5.1% atoms are at 7S1/2 level while 1.9% at 6P3/2 level, which leads to the population inversion between the two levels. We design the experiment setup for the superradiant laser. In the steady state, the average photon number in the cavity is 1.1 × 106. According to the further calculation, the power of output superradiant laser is 0.17 mW and the laser linewidth is 17 Hz. This calculation method can also be used in the area of optical metrology.

Paper Details

Date Published: 19 December 2013
PDF: 6 pages
Proc. SPIE 9046, 2013 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 90460J (19 December 2013); doi: 10.1117/12.2037222
Show Author Affiliations
Yanfei Wang, National Institute of Metrology (China)
Caihong Dai, National Institute of Metrology (China)
Zhifeng Wu, National Institute of Metrology (China)
Xiangzhao Li, Shenzhen Academy of Metrology and Quality Inspection (China)


Published in SPIE Proceedings Vol. 9046:
2013 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems
Hwa-Yaw Tam; Kexin Xu; Hai Xiao; Jigui Zhu, Editor(s)

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