PLASMONIC RACETRACK RESONATOR FOR APPLICATION TO PHOTONIC INTEGRATED CIRCUITS AT SUB-WAVELENGTH

2010 ◽  
Vol 19 (04) ◽  
pp. 583-588 ◽  
Author(s):  
HIROYUKI OKAMOTO ◽  
KENZO YAMAGUCHI ◽  
MASANOBU HARAGUCHI ◽  
TOSHIHIRO OKAMOTO
Keyword(s):  
Integrated Circuits ◽  
Finite Difference Time Domain ◽  
Cavity Mode ◽  
Ring Resonator ◽  
Photonic Integrated Circuits ◽  
Plasmonic Waveguides ◽  
Order Of Magnitude ◽  
Racetrack Resonator ◽  
Difference Time ◽  
Sub Wavelength

A racetrack resonator, several hundred nanometers in size and composed of plasmonic waveguides is presented. The wavelength spectrum of the plasmonic racetrack resonator has been numerically evaluated by using finite-difference time-domain method. As compared to the conventional plasmonic ring resonator, the output light intensity of the proposed plasmonic racetrack resonator is greater by almost one order of magnitude. The cavity mode of the plasmonic racetrack resonator has also been investigated.

Design of All-optical Half-subtractor Circuit Device using 2-D Principle of Photonic Crystal Waveguides

2019 ◽  
Vol 40 (3) ◽  
pp. 195-203 ◽  
Author(s):  
Sandip Swarnakar ◽  
Santosh Kumar ◽  
Sandeep Sharma
Keyword(s):  
Photonic Crystal ◽  
Integrated Circuits ◽  
Finite Difference Time Domain ◽  
Optical Amplifiers ◽  
Photonic Integrated Circuits ◽  
Square Lattice ◽  
Photonic Crystal Waveguides ◽  
Nonlinear Materials ◽  
All Optical ◽  
Difference Time

Abstract A design of all-optical half-subtractor (AOHS) is presented based on two-dimensional (2-D) photonic crystal (PhC) waveguides without using optical amplifiers and nonlinear materials. It is an essential component of various photonic integrated circuits. The design of AOHS circuit is based on beam interference principle, using square lattice of Y-shaped and T-shaped waveguides with silicon dielectric rods in air substrate. It is validated through finite-difference time-domain and using MATLAB simulations.

scholarly journals Optical meta-waveguides for integrated photonics and beyond

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Yuan Meng ◽  
Yizhen Chen ◽  
Longhui Lu ◽  
Yimin Ding ◽  
Andrea Cusano ◽  
...  
Keyword(s):  
Integrated Circuits ◽  
Optical Fibers ◽  
Optical Waveguides ◽  
Electromagnetic Waves ◽  
Degrees Of Freedom ◽  
Photonic Integrated Circuits ◽  
Interaction Strength ◽  
Physical Models ◽  
Computer Algorithms ◽  
Plasmonic Waveguides

AbstractThe growing maturity of nanofabrication has ushered massive sophisticated optical structures available on a photonic chip. The integration of subwavelength-structured metasurfaces and metamaterials on the canonical building block of optical waveguides is gradually reshaping the landscape of photonic integrated circuits, giving rise to numerous meta-waveguides with unprecedented strength in controlling guided electromagnetic waves. Here, we review recent advances in meta-structured waveguides that synergize various functional subwavelength photonic architectures with diverse waveguide platforms, such as dielectric or plasmonic waveguides and optical fibers. Foundational results and representative applications are comprehensively summarized. Brief physical models with explicit design tutorials, either physical intuition-based design methods or computer algorithms-based inverse designs, are cataloged as well. We highlight how meta-optics can infuse new degrees of freedom to waveguide-based devices and systems, by enhancing light-matter interaction strength to drastically boost device performance, or offering a versatile designer media for manipulating light in nanoscale to enable novel functionalities. We further discuss current challenges and outline emerging opportunities of this vibrant field for various applications in photonic integrated circuits, biomedical sensing, artificial intelligence and beyond.

Design and Analysis of 3-Input NAND/NOR/XNOR Gate Based on 2D Photonic Crystals

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
K. Esakki Muthu ◽  
VN. Jannath Ul Firthouse ◽  
S. Sorna Deepa ◽  
A. Sivanantha Raja ◽  
S. Robinson
Keyword(s):  
Integrated Circuits ◽  
Gap Analysis ◽  
Photonic Integrated Circuits ◽  
Fdtd Method ◽  
Plane Wave Expansion ◽  
Square Cavity ◽  
Xnor Gate ◽  
All Optical ◽  
Line Defects ◽  
Difference Time

AbstractIn this paper, Two Dimensional (2D) Photonic Crystal (PhC) based 3-input all optical NOR, NAND and XNOR gates is proposed and designed. The proposed device is formed by the combination of line defects and square cavity. The performance of the device is analyzed using 2D Finite Difference Time Domain (FDTD) method. The band gap analysis is done by Plane Wave Expansion (PWE) method. The device has the lattice constant and refractive index of 616 nm and 3.46, respectively. The dimension of the proposed structure is about 12.5 µm*12 µm which is highly compact and suitable for photonic integrated circuits (PIC).

scholarly journals Numerical Investigation and Design of Electrically-Pumped Self-Pulsing Fano Laser Based on III-V/Silicon Integration

Photonics ◽  
2021 ◽  
Vol 8 (12) ◽  
pp. 530
Author(s):  
Yingming Zhao ◽  
Yu Li ◽  
Weiping Huang
Keyword(s):  
Time Domain ◽  
Finite Difference Time Domain ◽  
Ring Resonator ◽  
Saturable Absorption ◽  
Coupling Region ◽  
Picosecond Pulses ◽  
Electrically Pumped ◽  
Cmos Compatible ◽  
Fdtd Simulations ◽  
Difference Time

A self-pulsing III-V/silicon laser is designed based on the Fano resonance between a bus-waveguide and a micro-ring resonator, partially covered by the graphene as a nonlinear saturable absorption component. The Fano reflector etched on the straight waveguide is used as one of the cavity mirrors in the coupling region to work with the graphene induced loss and nonlinearity to achieve pulsed lasing in GHz repetition frequency. The detailed lasing characteristics are studied numerically by using the rate equation and finite-difference time-domain (FDTD) simulations. The results show that the CMOS compatible hybrid laser can generate picosecond pulses with repetition rate at 1~3.12 GHz, which increases linearly with the injection current.

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