摘要
比较了四种马赫－陈德尔调制器的结构特性，表明Ｚ切共面波导（ＣＰＷ）是最好的一种结构。用阶跃倒相电极设计了新型电光光波导幅度调制器，研制了包装式带尾光纤的有５段例相电极的马赫－陈德尔调制器。在１．５３２μｍ波长上，该器件调制带宽为１４．８ＧＨｚ，半波电压为１４Ｖ，消光比为２１．３ｄＢ，光纤－器件－光纤插入损耗７．６ｄＢ。
The characteristics of four kinds of M-Z modulator configurations have been compared, and the Z-cut coplanar waveguide structure is the best. Using the step phase reversal eletrode structure, we have designed a new type electro-optical waveguide amplitude modulator. Packaged and pigtailed phase-reversal M-Z modulators including 5 sections of electrode have been manfactured. The device with 14. 8 GHz modulation bandwidth, half wave voltage of 14 V, extinction ratio of 21. 3 dB and fiberdevicefiber insertion loss of 7. 6 dB at 1523 urn is obtained.
出处
《光学学报》
EI
CAS
CSCD
北大核心
1995年第6期793-796,共4页
Acta Optica Sinica
基金
863高技术计划资助
关键词
电光调制器
铌酸锂器件
光波导调制器
electro-optic modulator, Ti:LiNbO_3 device, optic waveguide modulator.
