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光子晶体偏振分束器的设计与性能分析

Design and Performance Analysis of Photonic Crystal Polarizing Beam Splitter

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摘要

设计了一种基于定向耦合结构的光子晶体偏振分束器。该分束器由两个单模波导构成, 通过调节两个单模波导的宽度可以改变耦合长度。利用时域有限差分法进行仿真分析, 结果表明, 在波长1550 nm下TE和TM两种偏振模可以分束, 透射率都达到90%以上, 消光比分别达到22.4 dB和18.2 dB。该光子晶体偏振分束器的尺寸为25.8 μm×13 μm。

Abstract

A photonic crystal polarizing beam splitter based on directional coupling structure is proposed. The beam splitter consists of two single-mode waveguides. By adjusting the width of the two single-mode waveguides, the coupling length can be changed. The splitter is simulated and analyzed by using finite-difference time-domain method. The results show that at the wavelength of 1550 nm, both TE and TM polarizations achieve mode split. The transmissivities of TE and TM modes both exceed 90% and the extinction ratios reach 22.4 dB and 18.2 dB respectively. The size of the device is only 25.8 μm×13 μm.

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中图分类号:O436.3

DOI:10.3788/lop54.011301

所属栏目:集成光学

收稿日期:2016-09-01

修改稿日期:2016-09-13

网络出版日期:2016-12-20

作者单位    点击查看

张信祥:南京邮电大学光电工程学院, 江苏 南京 210023
陈鹤鸣:南京邮电大学贝尔英才学院, 江苏 南京 210023

联系人作者:张信祥(15651813920@163.com)

备注:张信祥(1991—),男, 硕士研究生, 主要从事光通信和光波技术方面的研究。

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引用该论文

Zhang Xinxiang,Chen Heming. Design and Performance Analysis of Photonic Crystal Polarizing Beam Splitter[J]. Laser & Optoelectronics Progress, 2017, 54(1): 011301

张信祥,陈鹤鸣. 光子晶体偏振分束器的设计与性能分析[J]. 激光与光电子学进展, 2017, 54(1): 011301

被引情况

【1】潘盼,李伶俐,蔡雪原. 硅基二氧化硅偏振分束器的设计及误差分析. 激光与光电子学进展, 2017, 54(12): 122301--1

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