%0 Journal Article
%T Beam Characteristics of Planar Waveguide Lasers with Hard-edge Unstable Resonators<br>硬边非稳腔平面波导激光器的光束特性
%A 王志敏
%A 房滔
%A 叶訢
%A 徐剑秋
%A 陈卫标
%J 光子学报
%D 2007
%I 
%X The method of numerical simulation based on coordinate transformation and diffraction theory was adopted to analyze the beam characteristics of waveguide lasers with hard-edge unstable resonators.Output beam quality was investigated considering non-uniform pumping and gain saturation.The beam characteristics with positive and negative branch unstable resonators were compared for end-and edge-pumped lasers.It is shown that near diffraction-limited beam qualities could be achieved with optimized off-axis hard-edge unstable resonators.For edge-pumped and end-pumped lasers were under the same pumping non-uniformity,M2 factors with positive branch unstable resonators are 3.9 and 2.3,while those with negative ones are 1.8 and 1.7,respectively.
%K Laser technique
%K Unstable resonator
%K Beam quality
%K Numerical simulation
%K Edge pumping
%K End pumping
%K Planar waveguide laser<br>激光技术
%K 非稳腔
%K 光束质量
%K 数值模拟
%K 边缘抽运
%K 端面抽运
%K 平面波导激光器
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=67552359CBD6CCA098927D0DAE47E17A&yid=A732AF04DDA03BB3&vid=933658645952ED9F&iid=0B39A22176CE99FB&sid=23104246A5FCFCEF&eid=E0F6F365E4766526&journal_id=1004-4213&journal_name=光子学报&referenced_num=0&reference_num=15