发明名称 |
Optical fiber amplifier with filter. |
摘要 |
<p>Disclosed is a fiber amplifier system including a gain fiber having a single-mode core doped with active dopant ions capable of producing stimulated emission of light at wavelength lambda s when pumped with light of wavelength lambda p. Spliced to the gain fiber is a light-attenuating fiber having a core containing a dopant that attenuates light of wavelength lambda p but not lambda s. The amplifier is conventionally employed in a system including an incoming telecommunication fiber for introducing light of wavelength lambda s into an end of the gain fiber, the amplified signal being connected to an outgoing telecommunication fiber. The system further includes a pump source for introducing light of wavelength lambda p into an end of the gain fiber. Elements of the system can be arranged for forward pumping, counter pumping and dual ended pumping. Various interconnection schemes are disclosed for forming a series arrangement including the gain fiber, the attenuating fiber and the outgoing fiber. <IMAGE></p> |
申请公布号 |
EP0522201(A1) |
申请公布日期 |
1993.01.13 |
申请号 |
EP19910121964 |
申请日期 |
1991.12.20 |
申请人 |
CORNING INCORPORATED |
发明人 |
CHARLTON, DAVID EDWARD;COLE, DOUGLAS REED;HALL, DOUGLAS WARREN |
分类号 |
G02B6/34;G02B6/00;H01S3/06;H01S3/067;H01S3/07;H01S3/094;H01S3/10;H01S3/17 |
主分类号 |
G02B6/34 |
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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