公开(公告)号：AU2002363931A1

公开(公告)日：2003-09-02

申请号：AU2002363931

申请日：2002-11-15

Applicant: CORNING INC

Inventor： QI GANG ,  COLLIER ADAM K ,  CUNNINGHAM GRANT

IPC: G02B6/00 ,  C03C13/04 ,  G02B6/02 ,  G02B6/036 ,  H01S3/06 ,  H01S3/067 ,  H01S3/10 ,  G02B6/22

Abstract: An optical fiber for signal amplification comprises a core, doped with at least 15% phosphorus by weight and a rare earth ion sufficient to provide amplification of an optical signal. The fiber also comprises a clad layer surrounding the core with an inner portion and an outer portion. The refractive index of the inner portion of the clad layer is lower than that at the outer radius of the core region. This depressed inner clad portion serves to confine electromagnetic radiation within a selected wavelength range to substantially only the core.

公开(公告)号：EP1476774A4

公开(公告)日：2005-09-28

申请号：EP02798446

申请日：2002-11-15

Applicant: CORNING INC

Inventor： COLLIER ADAM K ,  CUNNINGHAM GRANT ,  QI GANG

IPC: G02B6/00 ,  C03C13/04 ,  G02B6/02 ,  G02B6/036 ,  H01S3/06 ,  H01S3/067 ,  H01S3/10 ,  G02B6/22 ,  G02B6/16

CPC classification number: G02B6/02004 ,  C03C13/045 ,  G02B6/03611 ,  G02B6/03627 ,  H01S3/0672 ,  H01S3/06729

Abstract: An optical fiber for signal amplification comprises a core (10), doped with at least 15% phosphorus by weight and a rare earth ion sufficient to provide amplification of an optical signal. The fiber also comprises a clad layer (50) surrounding the core with an inner portion (30) and an outer portion (40). The refractive index of the inner portion of the clad layer is lower than that at the outer radius of the core region. This depressed inner clad portion serves to confine electromagnetic radiation within a selected wavelength range to substantially only the core.