公开(公告)号：EP1043816A3

公开(公告)日：2004-01-21

申请号：EP00302938.6

申请日：2000-04-07

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Mazzarese, David J. ,  Prohaska, John D. ,  Smith, Malcom ,  Tankala, Kanishka

IPC: H01S3/067

CPC classification number: H01S3/06708 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2203/12 ,  C03B2203/30 ,  H01S3/06729 ,  H01S3/1691

Abstract: The present invention provides an optical fiber for use in fiber lasers and amplifiers wherein the optical fiber has a core member surrounded by a cladding member for receiving pump energy and transferring the pump energy to the core member. The optical fiber also has an outer layer surrounding the cladding member. The cladding member has a circular exterior periphery and a predetermined refractive index (n c ). The cladding member has an index modified region that directs light to the core member. The index modified region has a stress field portion with a predetermined refractive index (n s ). The difference between the refractive index of the cladding member and that of the stress field portion (n c - n s ) is within such a range that the stress field portion does not affect the polarization properties of the light traveling in the core. Preferably, the difference between the refractive index of the cladding member and that of the stress field portion (n c - n s ) is less than 10 -4 , and more preferably 10 -5 .

公开(公告)号：EP1043816A2

公开(公告)日：2000-10-11

申请号：EP00302938.6

申请日：2000-04-07

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Mazzarese, David J. ,  Prohaska, John D. ,  Smith, Malcom ,  Tankala, Kanishka

IPC: H01S3/067

CPC classification number: H01S3/06708 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2203/12 ,  C03B2203/30 ,  H01S3/06729 ,  H01S3/1691

Abstract: The present invention provides an optical fiber for use in fiber lasers and amplifiers wherein the optical fiber has a core member surrounded by a cladding member for receiving pump energy and transferring the pump energy to the core member. The optical fiber also has an outer layer surrounding the cladding member. The cladding member has a circular exterior periphery and a predetermined refractive index (n c ). The cladding member has an index modified region that directs light to the core member. The index modified region has a stress field portion with a predetermined refractive index (n s ). The difference between the refractive index of the cladding member and that of the stress field portion (n c - n s ) is within such a range that the stress field portion does not affect the polarization properties of the light traveling in the core. Preferably, the difference between the refractive index of the cladding member and that of the stress field portion (n c - n s ) is less than 10 -4 , and more preferably 10 -5 .

Abstract translation: 本发明提供了一种用于光纤激光器和放大器的光纤，其中光纤具有被包层部件包围的芯部件，用于接收泵浦能量并将泵浦能量传递给芯部件。 光纤还具有围绕包层部件的外层。 包层部件具有圆形的外围和预定的折射率（nc）。 包层构件具有将光引导至芯构件的折射率改变区域。 折射率改变区域具有具有预定折射率（ns）的应力场部分。 包层部件的折射率与应力场部分的折射率之差（nc_ns）在这样一个范围内，即应力场部分不影响在芯部中行进的光的偏振特性。 优选地，包覆构件的折射率与应力场部分的折射率之差（nc_ns）小于10 -4，更优选10 -5。