发明名称 Laser with optimized coupling of pump light to a gain medium in a side-pumped geometry
摘要 A solid-state laser includes a high-absorption coefficient solid-state gain medium such as Nd:YVO4 that is side pumped with a semiconductor laser diode array. The resonant cavity of the solid-state laser is positioned so that the TEM00 mode is spaced from the face of the laser through which the laser is pumped by a distance sufficient to reduce diffraction losses but sufficiently near to allow coupling of pump light into the gain mode. The gain medium, the doping level of the gain medium, and the operating temperature of the pump laser are selected to efficiently couple pump light into the gain mode. The pump laser is positioned to side pump the gain medium without collimating or focusing optics between the pump laser and the face of the gain medium. A gap between the pump laser and the gain medium is empirically selected to match the angular extent of the pump laser output light to the height of the gain mode at the position of the gain mode fixed to optimize coupling and diffraction losses.
申请公布号 US6157663(A) 申请公布日期 2000.12.05
申请号 US19980061796 申请日期 1998.04.16
申请人 3D SYSTEMS, INC. 发明人 WU, XINGKUN;PARTANEN, JOUNI P.;HUG, WILLIAM F.;HEMMATI, HAMID
分类号 H01S3/08;H01S3/0941;H01S3/109;(IPC1-7):H01S3/091 主分类号 H01S3/08
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