[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.3807/COPP.2018.2.5.443

Optimization of Diode-pumped Cesium Vapor Laser Using Frequency Locked Pump Laser

Hong, Seongjin (Institute of Physics and Applied Physics, Yonsei University)
Kong, Byungjoo (Institute of Physics and Applied Physics, Yonsei University)
Lee, Yong Soo (Institute of Physics and Applied Physics, Yonsei University)
Oh, Kyunghwan (Institute of Physics and Applied Physics, Yonsei University)

Publication Information

Current Optics and Photonics / v.2, no.5, 2018 , pp. 443-447 More about this Journal

Abstract

We propose a diode-pumped cesium laser using frequency locking of a pump laser that can effectively increase the maximum output power of the cesium laser. We simultaneously monitored the absorption spectrum of cesium and the laser output power, and the frequency of pump laser was locked at the center of the $D_2$ absorption line of the cesium atom to obtain an effective gain enhancement. Using this scheme, we have achieved output power increase of ~0.1 W compared to when frequency locking was not applied. Furthermore, by optimizing the temperature of the cesium cell and the reflectivity of the output coupler, we successfully achieved an output power of 1.4 W using the pump power of 2.9 W, providing a slope efficiency of 61.5% and optical-to-optical efficiency of 49%.

Keywords

Cesium vapor laser; Diode-pumped alkali laser; Frequency locking; Atomic vapor;

Citations & Related Records

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