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Transverse Mode Formation in Longitudinally Pumped Miniature Slab Lasers |
| XU Jian-Qiu;YE Xin;FANG Tao |
| Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, PO Box 800-211, Shanghai 201800 |
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| Cite this article: |
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XU Jian-Qiu, YE Xin, FANG Tao 2006 Chin. Phys. Lett. 23 132-134 |
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Abstract The formation of transverse modes in longitudinally pumped miniature slab lasers is investigated theoretically and experimentally. The longitudinally non-uniform gain-guiding is studied by expanding the electric field into the Hermite--Gaussian functions that satisfy boundary conditions of the resonator. Non-Gaussian transversal beam profiles in the near field are found and the beam diameter is reduced when the pump spot becomes smaller. The experimental observation agrees with the theoretical calculation.
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| Keywords:
42.60.Jf
42.55.Xi
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Published: 01 January 2006
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| PACS: |
42.60.Jf
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(Beam characteristics: profile, intensity, and power; spatial pattern formation)
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42.55.Xi
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(Diode-pumped lasers)
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