公开(公告)号：US09815731B1

公开(公告)日：2017-11-14

申请号：US15299327

申请日：2016-10-20

申请人： nLIGHT, Inc.

发明人： Joona Koponen ,  Laeticia Petit ,  Petteri Väinänen

IPC分类号： G02B6/02 ,  C03B37/023 ,  C03B37/025 ,  H01S3/067

CPC分类号： C03B37/0253 ,  C03B37/01228 ,  C03B37/0124 ,  C03B37/01245 ,  C03B37/02754 ,  C03B37/02763 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2203/10 ,  C03B2203/18 ,  C03B2203/23 ,  C03B2205/08 ,  C03B2205/13 ,  C03B2205/44 ,  C03C25/68 ,  G02B6/02 ,  G02B6/02052 ,  G02B6/03622 ,  G02B6/14 ,  H01S3/06708 ,  H01S3/06745

摘要： Tapered core fibers are produced using tapered core rods that can be etched or ground so that a fiber cladding has a constant diameter. The tapered core can be an actively doped core, or a passive core. One or more sleeving tubes can be collapsed onto a tapered core rod and exterior portions of the collapsed sleeving tubes can be ground to provide a constant cladding diameter in a fiber drawn from the preform.