vertical grating coupler

A compact, high-efficiency grating coupler is demonstrated for interfacing a silicon waveguide and a perfectly-vertical fiber at O-band. The grating lies on a tilted silicon membrane for minimizing the reflections. Circular grating lines are adopted to shorten the overall

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Grating-assisted vertical couplers, which behave as add-drop filters, are proposed for wavelength routing of the signal among the different layers of on-chip multilayer optical networks. The device implements a 2×2 wavelength router which can be assembled into

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Application Case Study RSoft Application: Silicon-Based Optical Interconnect Design Optimization of a Vertical Grating Coupler Overview Technical University of Denmark, a leading research institute in silicon photonics, had a novel idea to maximize the coupling

We propose a novel high-efficiency, low-reflection, and fabrication-tolerant perfectly vertical grating coupler (PVGC) with a minimum feature size >200 nm to allow for fabrication using 193 nm deep-ultraviolet lithography. The structural

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below the grating may not be acceptable in all situations (e.g. in a multilayer optical substrate in which vertical real estate is costly). Assuming we can achieve high directionality and mode-matching e ciency, the e ciency of a perfectly vertical grating coupler is

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Design and investigation of a dual-layer grating coupler for efficient vertical fiber-chip coupling Jiyao Yu* and Hirohito Yamada Graduate School of Engineering, Tohoku University, Aramaki Aza-Aoba 6–6–05, Sendai, 980–8579, Japan *E-mail: [email protected]

Author: Jiyao Yu, Hirohito Yamada
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2. Design of Grating Coupler 2.1 Introduction The basic grating structure is a periodic structure with a finite number of rectangular grating teeth. The grating period for vertical out-of-plane coupling is ¼ = n eff. Only in the case of a weak perturbation grating is n eff

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One such solution is the vertical grating coupler, which allows light to be efficiently coupled in from the top of a device. However, for standard 250nm crystalline silicon top layers of silicon-on-insulator wafers, no such published designs existed. The initial focus of

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We report a vertical chirped grating coupler with high coupling efficiency (CE) fabricated on lithium niobate on insulator (LNOI). According to finite difference time domain simulations, loss in a uniform grating in LNOI comes from downward diffracted light, internal

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30/11/2017 · We present a simple and practical strategy that allows to design high-efficiency grating couplers. The technique is based on the simultaneous apodization of two structural parameters: the grating

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(a) (b) Figure 1. Schematic of the sub-wavelength, fully-etched grating coupler. 2. DESIGN AND SIMULATION Our grating coupler design uses the silicon-on-insulator (SOI) wafer, with a 3 m buried oxide and a 220 nm top silicon layer, that is used by IMEC and IME.

OmniSim now includes a Surface Grating Coupler Design Utility to automatically design and simulate surface grating couplers in 2D and 3D. OmniSim’s FDTD and FETD engines were used to model a vertical grating structure used to couple light from a planar.

An optical coupler is a component to couple the light from an optical fiber to the waveguide and vice versa. There are two kinds of coupling mechanism used in photonics: in-line coupling and vertical coupling. An edge couple is used for in-line coupling, where grating

Simulation Setup

A grating coupler with perfect vertical coupling and a high directionality is demonstrated using a standard 220 nm silicon-on-insulator wafer. The experimental coupling loss with a single-mode

Vertical directional coupling between the two waveguides occurs only when a resonance wavelength coincides with that of an incident guided wave. Vertically transferred optical wave in the resonator is coupled out by the grating coupler. The vertical directional

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Efficient unidirectional and broadband vertical-emitting optical coupler assisted by aperture-coupled nanopatch antenna array Y. S. ZENG,1 S. W. QU,1,* C. WANG,2 B. J. CHEN,2 AND C. CHAN2 1School of Electronic Engineering, University of Electronic Science and Technology of China (UESTC),

FIMMPROP was used to model a vertical grating structure used to couple light from a planar silicon waveguide to an optical fibre. The design that was chosen is a popular fiber-to-chip coupler for a silicon waveguide (silicon on insulator, SOI) with a grating optimised for vertical fibre coupling, taken from a popular publication from Ghent University [1] .

Abstract: A novel vertical grating coupler-based silicon photonic devices and photonic integrated circuits (PIC) have been demonstrated on CMOS-compatible SOI Platform. The monolithically PIC demonstrated 4Gb/s optical interconnection.

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grating coupler has been reduced from more than 20% to about 5%. The insertion loss and bandwidth of the proposed structure have also been im-proved. In addition, a bidirectional grating coupler for vertical coupling has been proposed to improve the insertion

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SOI grating structure for perfectly vertical fiber coupling Günther Roelkens (1), Dries Van Thourhout (2), Roel Baets (3) 1) Photonics Research Group, Ghent University-IMEC, Sint-Pietersnieuwstraat 41, B-9000 Ghent, [email protected] 2) Photonics

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The vertical grating coupler results in bi-directional coupling into two waveguides. from an optical fiber. Therefore, a smaller grating coupler is required, which makes high-accuracy alignment more difficult to achieve for the bonding process. A bidirectional vertical

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Broad parameter optimization of polarization-diversity 2D grating couplers for silicon photonics Lee Carroll, 1 Dario Gerace, Ilaria Cristiani,2 Sylvie Menezo,3 and Lucio C. Andreani 1Department of Physics, University of Pavia, Via Bassi 6, I-27100 Pavia, Italy 2Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Via Ferrata 1, I-27100

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Silicon-On-Insulator Chip-to-chip coupling via Vertical Grating Couplers Miguel Cabezón, Ignacio Garcés, Asier Villafranca Photonics Technology Group I3A – University of Zaragoza Zaragoza, Spain [email protected] José Pozo, Pragati Kumar, Andrzej

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Wavelength selective coupler with vertical gratings on silicon chip Kazuhiro Ikeda,a Maziar Nezhad, and Yeshaiahu Fainman Department of Electrical and Computer Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093-0409

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Ultrahigh-efficiency apodized grating coupler using fully etched photonic crystals Yunhong Ding,* Haiyan Ou, and Christophe Peucheret Department of Photonics Engineering, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark *Corresponding author

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Fully-automated optimization of grating couplers LOGAN SU,1,* RAHUL TRIVEDI,1 NEIL V. SAPRA,1 ALEXANDER Y. PIGGOTT,1 DRIES VERCRUYSSE,1,2 AND JELENA VUCKOVIˇ C´ 1 1Ginzton Laboratory, Stanford University, Stanford, CA 94305, USA 2Department of Physics, KU Leuven, Celestijnenlaan 200 D, B-3001 Leuven, Belgium

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vertical metallic grating coupler. The entire device, comprising the vertical grating couplers, the po-larization rotators, and the plasmonic Mach-Zehnder phase shifters, can be realized in a single metal layer (Fig. 2A), and it occupies an area de-fined by the In an

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Simulation of Vector Mode Grating Coupler Interfaces for Integrated Optics Christopher T. Nadovich*1, Derek J. Kosciolek 2, William D. Jemison1 and David T. Crouse 1Clarkson University, 2City University of New York *Corresponding author: [email protected]

The invention relates to the technical field of photonic devices, in particular to a vertical coupling grating coupler bonded by metal and a manufacturing method thereof. The grating coupler comprises a carrier piece, a metal bonding layer serving as a reflective mirror

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ventional grating coupler and an adapted single-mode fiber with an angled facet. The grating coupler is designed for near-to-vertical diffraction by 10 off the vertical axis to avoid secondary order reflections back into the waveguide. The angled polymer fa- ber. (b

In this work, a bidirectional grating coupler for perfectly vertical coupling with enhanced coupling efficiency is proposed. A silicon nitride layer above the grating regain is utilized to

Integrated Photonics Components & Circuits

27/11/2014 · The novel grating, which has not been developed using conventional techniques, accepts a vertical-incident Gaussian beam from a free-space and separates O

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Some performance characteristics\ud (confinement factor, single mode region, effective index) are studied, for core widths in the\ud range 100 – 600 nm.\ud The vertical coupling of these nano strip waveguides to optical fibres by means of a grating\ud coupler is

作者: Oriol Gili de Villasante
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The bidirectional grating coupler functions as the perfectly vertical grating coupler and power splitter in the Mach–Zehnder-type E-O modulator. According to the Bragg condition, the grating period L can be calculated by estimating the e ective refractive index ofe g,

Author: Beiju Huang, Zanyun Zhang, Zan Zhang, Chuantong Cheng, Huang Zhang, Hengjie Zhang, Hongda Chen

Vertical plasmonic resonance coupler – Vertical plasmonic resonance coupler Yi-Jang Hsu and Yinch 百度首页 登录 加入VIP 享VIP专享文档下载特权 赠共享文档下载特权 100w优质文档免费下载 赠百度阅读VIP精品版 立即开通 意见反馈 下载客户端 网页

1 S-matrix absolute optimization method for a perfect vertical waveguide grating coupler Anat Demeter and Shlomo Ruschin* Department of Physical Electronics, School of Electrical Engineering Faculty of Engineering, Tel-Aviv University,Tel-Aviv 69978 Israel *Corresponding author: [email protected]

Author: Anat Demeter, Shlomo Ruschin

The present invention relates to the field of photonics devices, in particular the vertical coupling grating coupler and a preparation method of metal bonding. The grating coupler comprising: a carrier sheet made of a silicon wafer or a glass sheet; metal bonding layer

Author: 郭霞, 武华, 韩明夫

waveguide grating is achieved vertical coupler through coupling a single-mode fiber with the diameter of 10.4. In the experiment, when the input wavelength is 1550nm, the maximum coupling efficiency is measured approximately 31% and 1 dB bandwidth is

Vertical grating couplers for silicon sandwiched slot waveguides

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optimize the coupler designs. The directionality (defined as the portion of the light power coupled into fiber normalized with respect to the total coupled optical power) of the grating can be optimized up to 0.87 according to simulations with the configuration listed

15/10/2019 · We propose and experimentally demonstrate an apodized bidirectional grating coupler for high-efficiency perfectly vertical coupling. Through grating apodization, the coupling efficiency (CE) can be notably improved and the parasitic reflections can be minimized. For

Author: Zanyun Zhang, Xia Chen, Qian Cheng, Ali Z. Khokhar, Xingzhao Yan, Beiju Huang, Hongda Chen, Hongwei

Grating elements can have luminances other than that of sharp-edged bars. If the graph of a grating is sinusoidal (see top panel in the illustration), the grating looks like a set of blurry light and dark bars and it is called a sine-wave grating. Sine-wave gratings are .

As bridge decks ·

In this paper, we discuss the theory research and testing methods of a grating coupler. The grating coupling efficiency of parameters and the corresponding theoretical simulation was studied systematically. Meanwhile, the coupling efficiency in theory can be

Author: Dan Feng Cui, Chen Yang Xue, Xiao Gang Tong, Yu Jian Jin, Wen Dong Zhang
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High efficiency grating coupler between silicon-on-insulator waveguides and perfectly vertical optical fibers Günther Roelkens,* Dries Van Thourhout, and Roel Baets Photonics Research Group, Ghent University-IMEC, Sint-Pietersnieuwstraat 41, B-9000 Ghent

Cited by: 194

We propose a compact and efficient grating coupler for vertical coupling between optical fibers and planar waveguides. A grating with a parallelogram shape is designed to be etched through the entire high-index waveguide core. The coupler is optimized using a

Cited by: 101

Using a grating to couple light at normal incidence upon the waveguide allows for a single-beam geometry. The ability of the grating to couple light symmetrically is demonstrated on the basis of a linear coupled-mode approach especially adapted to vertical

1/5/2017 · Abstract A highly efficient bidirectional grating coupler for perfectly vertical coupling is designed. With a Si 3 N 4 /SiO 2 bilayer structure and a backside metal mirror acting as anti-reflection cladding (ARC) and substrate reflector respectively, the coupling efficiency can be greatly enhanced for a cost-effective uniform grating coupler.

Cited by: 7