发明名称 |
POLARIZATION MAINTAINING FIBER, SYSTEM AND FIBER LASER |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide: a fiber minimized in an amount of polarization mode coupling and polarization mode dispersion and increased in a polarization maintaining function; a polarization maintaining fiber in which pump light is guided inside an inner cladding while a large outside cladding ensures a reduction of mode-coupling inside a fiber core; a system; and a fiber laser. <P>SOLUTION: A polarization maintaining fiber includes: a multi-mode fiber core doped with a rare-earth doping material; a first cladding surrounding the multi-mode fiber core; and a stress producing region provided in the first cladding and producing birefringence which allows single-mode light to transmit through the multi-mode fiber core without causing waveform distortions in a range of a specified fiber length, in the multi-mode fiber core. <P>COPYRIGHT: (C)2013,JPO&INPIT |
申请公布号 |
JP2012253378(A) |
申请公布日期 |
2012.12.20 |
申请号 |
JP20120181613 |
申请日期 |
2012.08.20 |
申请人 |
IMRA AMERICA INC |
发明人 |
FERMANN MARTIN E;HARTER DONALD J DR |
分类号 |
G02B6/02;H01S3/067;G02B6/024;G02B6/036;G02B6/44;H01S3/06;H01S3/098;H01S3/10 |
主分类号 |
G02B6/02 |
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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