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http://dx.doi.org/10.3807/KJOP.2018.29.6.247

Light Amplification in Diode-pumped Cesium Vapor Cell  

Hwang, Jongmin (Department of Physics, Pusan National University)
Jeong, Taek (Department of Physics, Pusan National University)
Moon, Han Seb (Department of Physics, Pusan National University)
Publication Information
Korean Journal of Optics and Photonics / v.29, no.6, 2018 , pp. 247-252 More about this Journal
Abstract
We report amplification of a small signal in a diode-pumped Cs vapor cell with 500 torr of ethane buffer gas, in the low-pump-power regime of 200 mW or less. For efficient amplifier operation, the pump and signal beams were coupled to a single-mode optical fiber, and completely overlapped in the Cs vapor cell. We investigated the amplification of the small signal according to cell temperature, signal power, and pump power. An amplification factor of 56 was achieved under the conditions of cell temperature of $115^{\circ}C$, signal power of 0.1 mW, and pump power of 200 mW.
Keywords
Alkali laser; Optically pumped alkali amplifier;
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