公开(公告)号：JP2001094182A

公开(公告)日：2001-04-06

申请号：JP2000239401

申请日：2000-08-08

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ALES GAELLE ,  ESPINDOLA ROLANDO PATRICIO ,  STRASSER THOMAS ANDREW

IPC: G01C19/72 ,  G02B6/02 ,  H01S3/06 ,  H01S3/067 ,  H01S3/10 ,  H04B10/00 ,  H04B10/22 ,  G02B6/10

Abstract: PROBLEM TO BE SOLVED: To realize a high-power and wide-band SFS(superfluorescence fiber light source). SOLUTION: A light source 10 has first and second SE-RE doped optical fibers 11 and 12. These optical fibers are arranged, so that light can be propagated in the axial direction of the light source 10 from the fiber 11 to the fiber 12. Moreover, the light source 10 has a coupler 17 to couple a light source 14 of a first pumping light with the first pumping light in the downstream direction of the fiber 11. Moreover, the light source 10 has a light source 15 of second pumping light, a coupler 18 for coupling the second pumping light with the film 12 in the upstream direction of the light source 10 and an optical isolator 13 arranged between the films 11 and 12 so that the light, which is propagated from the fiber 12 to the upstream direction, hardly reaches the fiber 11.