標題: Observations of multipass transverse modes in an axially pumped solid-state laser with different fractionally degenerate resonator configurations
作者: Wu, HH
Hsieh, WF
光電工程學系
Department of Photonics
公開日期: 1-Jan-2001
摘要: We experimentally show, for the first time to our knowledge, that a diode-pumped Nd:YVO4 laser can operate with multipass transverse (MPT) modes that self-reproduce after several round trips in a plano-concave cavity that has fractionally degenerate resonator configurations when the pump beam waist is sufficiently smaller than that of the fundamental cavity mode. The MPT mode is found to exhibit multiple beam waists located at different positions and to experience a lower pumping threshold than the single-pass transverse mode. With off-axis pumping, the N-pass transverse mode forms a symmetric pattern for even N and an asymmetric pattern for odd N. This result can be explained as being due to the introduction of MPT modes but not to superposition of the standard cavity modes. (C) 2001 Optical Society of America.
URI: http://hdl.handle.net/11536/29964
ISSN: 0740-3224
期刊: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
Volume: 18
Issue: 1
起始頁: 7
結束頁: 12
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