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用于光载毫米波系统的铌酸锂调制器的研制

Keywords: 集成光学,光载微波,铌酸锂,光波导,双平行马赫曾德尔调制器

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Abstract:

为了满足光载微波毫米波系统对宽带毫米波调制器的要求,设计和制作了双平行马赫曾德尔调制器(DPMZM).采用特殊电极结构,选择性腐蚀掉除火线电极下其余大部分SiO2缓冲层,有效抑制了调制器的热漂移和直流漂移.制作的DPMZM样品特征阻抗为35Ω,插入损耗为7.2dB,消光比为26dB,单、双臂半波电压分别为3.0V和1.5V,调制带宽为20GHz.除带宽指标外,总体性能与国际上高端产品相同或略优.目前尚未见铌酸锂DPMZM器件国内制作的报道.

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