发明名称 |
Distributed-feedback fiber-laser with asymmetric output ports |
摘要 |
A distributed feedback fiber laser having designed asymmetric power output ports is disclosed. The present invention uses nonuniform grating strengths in a laser cavity of an erbium doped fiber optic material to create nonuniform reflection within the cavity. The stronger the grating strength in a particular section of the cavity, the more reflectivity that section has. This construction results in a fiber laser having two output ports with different output intensities. In a method for creating nonuniform grating strengths within the fiber optic material, photosensitive fiber optic material is exposed to an optical source through a mask. As the fiber optic material is exposed, the grating strength of the fiber is changed. By linearly exposing the fiber optic material to different durations of optical energy, nonuniform grating strengths are created within the fiber.
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申请公布号 |
US6005877(A) |
申请公布日期 |
1999.12.21 |
申请号 |
US19980064464 |
申请日期 |
1998.04.22 |
申请人 |
HUGHES ELECTRONICS CORPORATION |
发明人 |
GAETA, CELESTINO J.;BOURGHOLTZER, STEPHEN L.;NG, WILLIE W. |
分类号 |
H01S3/067;(IPC1-7):H01S3/07 |
主分类号 |
H01S3/067 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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