机构地区: 吉林大学通信工程学院
出 处: 《半导体光电》 2003年第5期328-331,337,共5页
摘 要: 研制了一种新型的多信道切换的分/插复用器,它由多个可调谐FBG和一对光环行器组成。采用了一种高效的超磁致伸缩材料(GMM)使FBG产生有效的Bragg波长偏移。用编程控制电流来调控FBG的应变和Bragg波长偏移。实验结果表明,该分/插复用器的信道插入损耗小于2.0dB,端口隔离度大于30dB,邻道串扰小于-35dB。其结构简单,可实现信道波长再利用,提高了网络灵活性。 A novel multichannelswitching active add/drop multiplexer (OADM) is fabricated consisting of a pair of circulators and fiber Bragg gratings (FBG). An efficient ultramagnetostrictive material (GMM) is used to produce significant Bragg wavelength shifts in FBGs. Programmable current is applied to control strain and shift of the Bragg wavelength of the FBGs. The channel insertion loss of this OADM is less than 2.0dB, with the isolation of add/drop ports of more than 30dB. This OADM has a simple structure...
关 键 词: 光分 插复用器 波分复用 光纤光栅 超磁致伸缩材料
领 域: [电子电信]