Ultra-Broadband Subwavelength Grating Coupler for Bound State in Continuum

被引：1

作者：

Wang, Junjia ^{[1
]}

Fang, Chongbao ^{[1
]}

Dong, Na ^{[1
]}

Jiang, Weifeng ^{[2
]}

Chen, Zhaofu ^{[1
]}

Chen, Lawrence R. ^{[3
]}

Sun, Xiaohan ^{[1
]}

机构：

[1] Southeast Univ, Sch Elect Sci & Engn, Natl Res Ctr Opt Sensors Commun Integrated Networ, Nanjing 210096, Jiangsu, Peoples R China

[2] Nanjing Univ Posts & Telecommun, Coll Elect & Opt Engn, Nanjing 210023, Peoples R China

[3] McGill Univ, Dept Elect & Comp Engn, Montreal, PQ H3A 0E9, Canada

来源：

IEEE PHOTONICS JOURNAL | 2022年 / 14卷 / 04期

基金：

中国国家自然科学基金; 加拿大自然科学与工程研究理事会;

关键词：

Optical waveguides; Couplings; Slabs; Refractive index; Bandwidth; Silicon; Propagation losses; Subwavelength structures; gratings; bound state in continuum; waveguide devices; EFFICIENT; LIGHT;

D O I：

10.1109/JPHOT.2022.3178882

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Grating couplers (GCs) are important for light to couple between optical fibers and photonic integrated circuits (PICs). The Bound State in Continuum (BIC) waveguides offer new functionalities for PIC. High-Q resonators, electro-optical modulator, and photodetectors can be built on it without etching steps. Due to the special waveguide geometry of BIC waveguides, a high efficiency GC is still missing. In this work, we demonstrated a subwavelength grating (SWG) GC for BIC waveguide with a coupling efficiency of 8 dB and a 1 dB bandwidth >70 nm. The device shows ultra-broadband behavior which is extremely useful for BIC-based PICs.

引用

页数：4

共 50 条

[41] Quantum frequency conversion with ultra-broadband tuning in a Raman memory
Bustard, Philip J.
England, Duncan G.
Heshami, Khabat
Kupchak, Connor
Sussman, Benjamin J.
PHYSICAL REVIEW A, 2017, 95 (05)
[42] Ultra-broadband and strongly enhanced diffraction with metasurfaces
Zhang, Yong
Zhou, Lin
Li, Jia-qi
Wang, Qian-jin
Huang, Cheng-ping
SCIENTIFIC REPORTS, 2015, 5
[43] Diffraction engineering for silicon waveguide grating antenna by harnessing bound state in the continuum
Xu, Hongnan
Shi, Yaocheng
NANOPHOTONICS, 2020, 9 (06) : 1439 - 1446
[44] Subwavelength structure enabled ultra-long waveguide grating antenna
Chen, Jiaxin
Wang, Jinzhao
Li, Jiewen
Yao, Yong
Sun, Yunxu
Tian, Jiajun
Zou, Yi
Zhao, Xiangjie
Xu, Xiaochuan
OPTICS EXPRESS, 2021, 29 (10) : 15133 - 15144
[45] Experimental demonstration of a broadband mode converter and multiplexer based on subwavelength grating waveguides
Gonzalez-Andrade, David
Dias, Antonio
Wanguemert-Perez, J. Gonzalo
Ortega-Monux, Alejandro
Molina-Fernandez, Inigo
Halir, Robert
Cheben, Pavel
Velasco, Aitor V.
OPTICS AND LASER TECHNOLOGY, 2020, 129 (129)
[46] SWG dispersion engineering for ultra-broadband photonic devices
Halir, Robert
Maese-Novo, Alejandro
Romero-Garcia, Sebastian
Perez-Galacho, Diego
Zavargo-Peche, Luis
Ortega-Monux, Alejandro
Molina-Fernandez, Inigo
Gonzalo Wangueemert-Perez, J.
Cheben, Pavel
INTEGRATED PHOTONICS: MATERIALS, DEVICES, AND APPLICATIONS II, 2013, 8767
[47] Silicon Multimode Anti-Symmetric Apodized Bragg Gratings for Ultra-Broadband High-Extinction-Ratio Polarization Beam Splitter
Cheng, Guanglian
Yi, Qiyuan
Yan, Zhiwei
Li, Qiyuan
Xu, Fanglu
Xiong, Xinzhe
Sima, Chaotan
Shen, Li
JOURNAL OF LIGHTWAVE TECHNOLOGY, 2023, 41 (22) : 6997 - 7005
[48] Tungsten based anisotropic metamaterial as an ultra-broadband absorber
Lin, Yinyue
Cui, Yanxia
Ding, Fei
Fung, Kin Hung
Ji, Ting
Li, Dongdong
Hao, Yuying
OPTICAL MATERIALS EXPRESS, 2017, 7 (02): : 606 - 617
[49] Thin-film dielectric characterization by bound state in the continuum in high contrast grating
Lin, Yi-Wen
Chang, Tsun-Hsu
Her, Tsing-Hua
Yao, Hsin-Yu
OPTICS EXPRESS, 2024, 32 (20): : 36048 - 36062
[50] Nanophotonic Ultrashort Coupler Based on Hybrid Plasmonic Waveguide With Lateral Subwavelength Grating
Sharma, Tarun
Singh, Lalit
Kumar, Mukesh
IEEE TRANSACTIONS ON NANOTECHNOLOGY, 2016, 15 (06) : 931 - 935

← 1 2 3 4 5 →