High power three level fiber laser and method of making same,申请号US19970971472-传众专利搜索

High power three level fiber laser and method of making same

申请公布号：US6031849(A)

申请号：US19970971472

申请日期：1997.11.14

申请公布日期：2000.02.29

申请人：

JDS UNIPHASE CORPORATION

发明人：BALL, GARY A.;SANDERS, PAUL

分类号：C03B37/018;H01S3/067;(IPC1-7):H01S3/30;H01S3/00;G02B6/26;C03B37/023

主分类号：C03B37/018

摘要：A rare earth doped fiber for use in a fiber laser is presented. The fiber laser uses a single stripe broad area pump diode permits Yb lasing in its 3-level transition at 980 nm preferentially over the 1010 nm 4-level transition. The present fiber laser is characterized by a dual cladding fiber geometry which includes an inner rare earth doped single mode core. There is an inner cladding designed to be a multimode pump core for the pump light. The pump core is followed by a final cladding to confine the pump radiation. The present laser matches the larger/outer mode field to that of a single stripe broad area diode in order to maximize the pump intensity.