外文题目: Vortex and LG(01)-mode Nd:YAG laser involving a circular Dammann grating
作者: Xu, Yun; Han, Xiahui; Li, Guiyun; Liu, Jinyu; Xia, Kegui; Li, Jianlang
刊名: Opt. Eng.
年: 2016 卷: 55 期: 5 文章编号：56101
英文关键词:
lasers resonator; vortex beam; circular Dammann grating; annular pumping
ORBITAL ANGULAR-MOMENTUM; PHASE SINGULARITIES; GENERATION; LIGHT; MODES; BEAMS
英文摘要:
By introducing a circular Dammann grating (CDG) into the pump unit, we demonstrated an end-pumped Nd:YAG laser that emitted a vortex and first-order LG mode with high laser efficiency and high power. In our scheme, the CDG was used to reshape the pumping light into an annular profile, and the adaptation of it was realized easily by inserting it into the pump unit of a conventional end-pumped solid-state laser; the laser cavity was simple, compact, and consisted of only a laser crystal and an output coupler. The beam power of this laser reached 1.86 W at an absorbed pump power of 6.38 W with a slope efficiency of 34.5%. (C) 2016 Society of PhotoOptical Instrumentation Engineers (SPIE)


文献类型: 期刊论文
正文语种: English
收录类别: SCIEI
DOI: 10.1117/1.OE.55.5.056101


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