Optimization of diode-pumped cesium vapor laser using frequency locked pump laser

Seongjin Hong, Byungjoo Kong, Yong Soo Lee, Kyunghwan Oh

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


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 D2 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%.

Original languageEnglish
Pages (from-to)443-447
Number of pages5
JournalCurrent Optics and Photonics
Issue number5
Publication statusPublished - 2018

Bibliographical note

Publisher Copyright:
© 2018 Current Optics and Photonics.

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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