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聚合物热光可变光衰减器 被引量:5

Polymer-Based Variable Optical Attenuator
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摘要 提出一种旁路结构聚合物热光可变光衰减器 (variable optical attenuator,VOA)的设计 ,采用旁路波导可提高衰减效率并降低串扰 .软件模拟验证 ,无间距旁路 VOA衰减可达 2 8d B,比未加旁路波导的相同结构 VOA增加10 d B,但同时插入损耗增加 0 .3d B,串扰低于 - 4 4 d B,理论功耗为 4 0 m W.采用倒脊形结构研制了原理性的热光聚合物 VOA,测得衰减大于 11d B,相应输入电流为 6 6 m A,具有明显的热光效应 . A VOA(variable optical attenuator) is presented based on thermo optic polymer,in which a bypassing guide was adopted to improve attenuating efficiency and lower crosstalk as well.Simulations demonstrate that the attenuation in case of no space between passing waveguide and multi mode region can reach 28dB,increasing by 10dB than no passing waveguide case.Simultaneously,insertion loss increases only by 0 3dB,crosstalk is below -44dB and theoretic power consumption is about 40mW.The inverse rib structure is adopted,working out thermo optic polymer based VOA.Measured attenuation is higher than 11dB,the responding input current is about 66mA.From measurement obvious thermo optic effect is observed.
出处 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2004年第5期557-561,共5页 半导体学报(英文版)
基金 国家自然科学基金 (批准号 :60 1770 12) 浙江省重点科技研究(批准号:G2 0 0 3 0 190 )资助项目~~
关键词 可变光衰减器 旁路波导 聚合物 热光效应 variable optical attenuator bypassing waveguide thermo optic polymer
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参考文献12

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