1.5μm波导声光可调滤光器研究  

Biconical Taper Fiber Filters

作　　者：傅焰峰[1] 李佐宜[1] 李涛[2,3] 刘秋华 梅锁海[2,3] 刘水华 方罗珍[2,3] 林兵 

机构地区：[1]华中理工大学固体电子学系 [2]邮电部固体器件研究所 [3]武汉邮电科学院固体器件所

出　　处：《光学学报》1997年第8期1113-1116,共4页Acta Optica Sinica

摘　　要：对１．５μｍ波导型声光ＴＥ－ＴＭ模式转换光滤波器进行了研究。采用了可降低驱动功率的表面声波导结构。在１．５～１．６μｍ波段实现了可调滤光，通带宽度小于２ｎｍ，达到９７％以上转换率所需的射频驱动功率约８０ｍＷ（１９ｄＢｍ），器件总插入损耗约９ｄＢ。The effects of fusion and tapering conditions on biconical taper fiber filters are studied experimentally. A Gaussian profile model for the prediction of fiber taper shape is presented. We have fabricated the passband fiber filter with narrow band (3 dB width 4 nm), and band regection fiber filters with central band rejection wavelengthes of 1553 nm(loss -6.6 dB) and 1559 nm (loss -19.6 dB), respectively.

关 键 词：声光可调 模式转换 波分复用 滤光器 光通信 

分 类 号：TN929.1[电子电信—通信与信息系统]