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聚合物热光可变光衰减器
引用本文:李鹰,江晓清,李锡华,唐奕,王明华,张涛,沈玉全.聚合物热光可变光衰减器[J].半导体学报,2004,25(5):557-561.
作者姓名:李鹰  江晓清  李锡华  唐奕  王明华  张涛  沈玉全
作者单位:浙江大学信息与电子工程学系 杭州310027 (李鹰,江晓清,李锡华,唐奕,王明华),中国科学院理化技术研究所 北京100101 (张涛),中国科学院理化技术研究所 北京100101(沈玉全)
基金项目:国家自然科学基金 , 浙江省科技计划
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 .

关 键 词:可变光衰减器    旁路波导    聚合物    热光效应
文章编号:0253-4177(2004)05-0557-05
修稿时间:2003年5月9日

Polymer-Based Variable Optical Attenuator
Li Ying ,Jiang Xiaoqing ,Li Xihua ,Tang Yi ,Wang Minghua ,Zhang Tao and Shen Yuquan.Polymer-Based Variable Optical Attenuator[J].Chinese Journal of Semiconductors,2004,25(5):557-561.
Authors:Li Ying  Jiang Xiaoqing  Li Xihua  Tang Yi  Wang Minghua  Zhang Tao and Shen Yuquan
Affiliation:Li Ying 1,Jiang Xiaoqing 1,Li Xihua 1,Tang Yi 1,Wang Minghua 1,Zhang Tao 2 and Shen Yuquan 2
Abstract: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.
Keywords:variable optical attenuator  bypassing waveguide  thermo  optic polymer
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