随着光纤光栅的问世,光纤通信日益发达,光纤光栅出现了许多的种类,例如啁啾、相移、切趾、取样光栅(SFBG)等等,取样光栅由于其传输通道间隔稳定,通带窄,具的极好的波长选择性,因而在光波分复用器、光纤激光器、光分插复用器、光解复用器等光器件,以及光纤传感,光信息交换等技术领域发挥重要作用
取样光纤光栅其实与相称光纤光栅基本上一致,不同的地方在于,相移光栅是在均匀布拉格光栅的某一点处引入相移,导致在反射谱中新开出了一个或者多个窗口,窗口的多少与光栅的相移点的多少有关,取样光栅在结构上与此相似,一段均匀布拉格光栅后接一段正常光纤,正常光纤的作用引起一定的相移,因而其反射谱呈现出梳状结构,在反射窗口中打开一个个通道。通道的个数以及通道间隔,反射率的大小与取样的周期、光栅长度、折射率调制深度等相关。
特征:
波长:1510nm-1590nm之间均可刻写
栅区长度 15mm
反射峰>5个
反射率>50%
尾纤长度:1m/1m
光纤类型:smf-28
涂覆:Acrylate
Important Notice
Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.
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