Self-heated diode-pumped alkali laser with a microfabricated alkali cell

Zhiyong Li; Gaoce Han; Rongqing Tan; Yujie Wang; Qing Ye; Jintian Bian; Wei Huang

doi:10.1117/1.OE.56.10.106105

12 October 2017 Self-heated diode-pumped alkali laser with a microfabricated alkali cell

Zhiyong Li, Gaoce Han, Rongqing Tan, Yujie Wang, Qing Ye, Jintian Bian, Wei Huang

Author Affiliations +

Funded by: Natural Science Foundation of China, Foundation of State Key Laboratory of Pulsed Power Laser Technology

Optical Engineering, Vol. 56, Issue 10, 106105 (October 2017). https://doi.org/10.1117/1.OE.56.10.106105

Abstract

A self-heated diode-pumped alkali laser (SDPAL) with a microfabricated alkali cell is proposed. Based on Beach’s model and finite-element analysis theory, the output characteristics of a cesium self-heated laser are studied. The results indicate that an SDPAL with a cell length of 2 mm is feasible. The output power of a typical SDPAL is ∼Watt level. Rapid heat convection around the mini cell can increase the output power. At the same time, the utilization ratio of the pumping light will decrease. A heating experiment is also conducted to validate the theoretical model. When pumping power of 0.69 W is illuminated on the light absorber, the cell temperature can reach 76.4°C with a single-side heated structure. The results show that with a mini vapor cell, SDPAL can be portable and competitive when ∼Watt-level laser with wavelength of alkali D1 line is required.

Citation Download Citation

Zhiyong Li, Gaoce Han, Rongqing Tan, Yujie Wang, Qing Ye, Jintian Bian, and Wei Huang "Self-heated diode-pumped alkali laser with a microfabricated alkali cell," Optical Engineering 56(10), 106105 (12 October 2017). https://doi.org/10.1117/1.OE.56.10.106105

Received: 12 July 2017; Accepted: 15 September 2017; Published: 12 October 2017

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KEYWORDS

Semiconductor lasers

Convection

Microfabrication

Cesium

Copper

Thermal modeling

Glasses

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