发明名称 |
Wide band erbium-doped fiber amplifier (EDFA) |
摘要 |
The proposed amplifier structure and associated method of optical signal amplification efficiently utilizes the limited length of rare earth-doped optical amplifier. A multi-stage of amplification stages, which includes a first erbium-doped fiber amplifier stage pumped by a first pump light source and a second erbium-doped fiber amplifier stage pumped by a second pump light source, is provided and includes a split section disposed between the first and second amplification stages for splitting the amplified signal light into a C-band and a L-band; a reflector for reflecting the amplified output of the second amplifier stage back into the second amplifier stage and the first amplifier stage in a reverse direction; a combiner for combining the reflected output, in succession, from the second amplifier and first amplifier to produce an output signal; and, a circulator for redirecting the reflected output traveling in a reverse direction to the input of the combiner.
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申请公布号 |
US6646796(B2) |
申请公布日期 |
2003.11.11 |
申请号 |
US20010870599 |
申请日期 |
2001.05.31 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD |
发明人 |
SONG KWAN-WOONG;HWANG SEONG-TAEK |
分类号 |
H01S3/06;G02B6/00;H01S3/067;H01S3/094;H01S3/10;H01S3/23;(IPC1-7):H01S3/00 |
主分类号 |
H01S3/06 |
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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