发明名称 |
Fiber optic coupling filter and amplifier. |
摘要 |
<p>The disclosed fiber optic filter structure includes an optical fiber having a single-mode core surrounded by cladding material, and at least one light-attenuating light path in the cladding material uniformly spaced from the single-mode core. The propagation constants of the single-mode core and the light path are different at wavelengths except for at least one wavelength lambda f. The spacing between the single-mode core and the light path are sufficiently small that light within a first band of wavelengths centered around lambda f couples between the single-mode core and the light path. At least a portion of the light within the first band of wavelengths is absorbed in the light path. In that embodiment in which the single-mode core is a fiber amplifier gain core, the filtering function of the light path modifies the fiber amplifier gain spectrum. <IMAGE></p> |
申请公布号 |
EP0498945(A2) |
申请公布日期 |
1992.08.19 |
申请号 |
EP19910120234 |
申请日期 |
1991.11.27 |
申请人 |
CORNING INCORPORATED |
发明人 |
HALL, DOUGLAS WARREN, CORNING INCORPORATED;HAWK, ROBERT MARTIN, CORNING INCORPORATED |
分类号 |
G02B6/26;G02B6/00;G02B6/28;G02B6/34;H01S3/06;H01S3/07;H01S3/10;H01S3/17 |
主分类号 |
G02B6/26 |
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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