Polarization Splitting at Visible Wavelengths with the Rutile TiO(2) Ridge Waveguide.
Polarization Splitting at Visible Wavelengths with the Rutile TiO(2) Ridge Waveguide.
复制标题
DOI：
10.3390/nano13121891
复制
发表时间：
2023-06-20
期刊：
影响因子：
5.3
通讯作者：
Ruan, Shuangchen
中科院分区：
文献类型：
--
作者：
Zheng, Xinzhi;Ma, Yujie;Zhao, Chenxi;Xiang, Bingxi;Yu, Mingyang;Dai, Yanmeng;Xu, Fang;Lv, Jinman;Lu, Fei;Zhou, Cangtao;Ruan, Shuangchen
新型集成光子应用（例如偏分复用和量子通信）对片上偏振控制的需求很高。然而，由于器件尺寸随波长的敏感缩放以及可见光吸收特性，具有非对称波导结构的传统无源硅光子器件无法实现可见光波长下的偏振控制。本文研究了一种基于 r-TiO2 脊形波导中基本偏振模式能量分布的新偏振分裂机制。分析了不同弯曲半径下的弯曲损耗以及不同r-TiO2脊形波导结构中基模的光耦合特性。特别是，提出了一种基于r-TiO2脊形波导中的定向耦合器（DC）的在可见光波长下工作的具有高消光比的偏振分光器。设计并运行了基于仅具有 TE 或 TM 偏振谐振的微环谐振器 (MRR) 的偏振选择性滤波器。我们的结果表明，可以通过简单的 r-TiO2 脊形波导结构来实现 DC 或 MRR 配置中具有高消光比的可见光波长偏振分离器。
On-chip polarization control is in high demand for novel integrated photonic applications such as polarization division multiplexing and quantum communications. However, due to the sensitive scaling of the device dimension with wavelength and the visible-light absorption properties, traditional passive silicon photonic devices with asymmetric waveguide structures cannot achieve polarization control at visible wavelengths. In this paper, a new polarization-splitting mechanism based on energy distributions of the fundamental polarized modes in the r-TiO2 ridge waveguide is investigated. The bending loss for different bending radii and the optical coupling properties of the fundamental modes in different r-TiO2 ridge waveguide configurations are analyzed. In particular, a polarization splitter with a high extinction ratio operating at visible wavelengths based on directional couplers (DCs) in the r-TiO2 ridge waveguide is proposed. Polarization-selective filters based on micro-ring resonators (MRRs) with resonances of only TE or TM polarizations are designed and operated. Our results show that polarization-splitters for visible wavelengths with a high extinction ratio in DC or MRR configurations can be achieved with a simple r-TiO2 ridge waveguide structure.
登录
查看更多内容
影响因子：
3.8
作者：
Bogaerts, Wim;Taillaert, Dirk;Baets, Roel
通讯作者：
Baets, Roel
影响因子：
3.8
作者：
Djordjevic, Stevan S.;Shang, Kuanping;Yoo, S. J. B.
通讯作者：
Yoo, S. J. B.
不同自由度之间光子量子纠缠的片上相干转换
影响因子：
16.6
作者：
Feng LT;Zhang M;Zhou ZY;Li M;Xiong X;Yu L;Shi BS;Guo GP;Dai DX;Ren XF;Guo GC
通讯作者：
Guo GC
影响因子：
3.8
作者：
Fukuda, Hiroshi;Yamada, Koji;Itabashi, Sei-ichi
通讯作者：
Itabashi, Sei-ichi
影响因子：
3.6
作者：
Cassan, Eric;Khanh Van Do;Cluzel, Benoit
通讯作者：
Cluzel, Benoit