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公开(公告)号:EP0713110A1
公开(公告)日:1996-05-22
申请号:EP95308201.3
申请日:1995-11-16
发明人: Byron, Kevin C.
CPC分类号: G02B6/2932 , G02B6/12007 , G02B6/124 , G02B6/29323 , G02B6/29352 , H01S3/0675 , H01S3/10023
摘要: The isolation between stop and pass bands afforded by an optical fibre normally reflective Bragg grating (5) reflective over a waveband λ₃ in an optical fibre (2) is enhanced by preceding it with two blazed Bragg gratings (3, 4) that are spectrally selectively mode coupling respectively over wavebands λ₁ and λ₂, where the λ₃ waveband compasses the spectral waveband separating waveband λ₁ from waveband λ₂. The fibre is connected to an optical circulator (40) or one port of an optical 4-port 3dB coupler (50).
摘要翻译: 通过在光纤(2)中的波段λ3上反射的光纤常规反射布拉格光栅(5)提供的停止通带之间的隔离被增强,其中两个闪烁的布拉格光栅(3,4)是光谱的 分别在波段λ1和λ2上选择性地模式耦合,其中λ3波段将分离波段λ1的波段波段与波段λ2分离。光纤连接到光环行器(40)或光端口4端口 3dB耦合器(50)。