Design and fabrication of a photonic crystal directional coupler for
We have designed and fabricated a photonic crystal directional coupler for use as an optical switch. The design is for the SOI material system, and includes a silica overlayer and infilling of the etched
Optocouplers Desig
About This Designer''s Guide Avago Technologies optocouplers can be used in an array of isolation applications ranging from power supply and motor control circuits to data communi cation and digital
(PDF) Temperature Effects in Fiber Couplers
The wavelength used in this simulation is in the C-Band region, which is around 1550 nm. Temperature changes cause changes in the material refractive index. Temperature changes cause a shift in
Novel optical directional coupler based on surface plasmon polaritons
In this paper, a novel optical directional coupler based on SPPs is proposed, and the finite difference time domain (FDTD) method is used to simulate and analyze its new optical properties.
Tunable Directional Couplers for High Contrast Optical Meshes
We describe the operation, design, and fabrication of MEMS-tunable silicon-photonics directional couplers, with potential for smaller footprint, less sensitivity to fabrication errors, and
Chapter 5 The Optical Directional Coupler
Abstract This chapter presents a detailed discussion of optical directional couplers, which is one of the important components of integrated quantum photonic circuits. Coupled mode theory is used to
Design and modeling of a fabrication tolerant and broadband
Based on the finite difference eigenmode and finite-difference time-domain simulation results, we analyze the effects of fabrication errors on the coupling of these directional couplers.
Compact Integrated Optical Directional Coupler with
Compact integrated optical directional couplers with symmetrically- and asymmetrically etched S-bend waveguides on SOI platform have been designed,
Robust Characterization of Integrated Photonics Directional Couplers
To address these challenges, we propose a novel direct measurement technique that offers greater robustness to variations in optical interfaces, while by-passing extinction ratio
Accurate Modeling of Directional Couplers with Oxide Cladding:
We conduct a systematic study involving experimental optical measurements, numerical simulations, and direct electron microscopy imaging to investigate this discrepancy in directional
Tapered Optical Fiber Couplers Fabricated by Droplet-based
Abstract: This paper presents a fabrication method for 2x2 twisted fiber-optic directional couplers based on biconical low-loss tapered optical
A Compact and Temperature-Sensitive Directional
Abstract and Figures A directional coupler structure formed by a nematic liquid crystal (NLC)-filled photonic crystal fiber (PCF) represents a
On-chip optical pulse shaping using cascaded co-directional couplers
Picosecond-resolution optical pulse shaping (OPS) is desired for many important applications in ultrahigh-bit-rate optical fiber communications and ultrafast optical signal processing.
Reconfigurable fiber-to-waveguide coupling module enabled by phase
In this paper, we propose and design a reconfigurable fiber-to-waveguide coupling (RFWC) module based on a PCM overlaid switchable directional coupler (SDC), which serves both
Particle Swarm Optimized Optical Directional Couplers with
In this paper, two cross directional optical couplers on silicon-on-insulator are designed by a particle swarm optimized inverse-design method. Benefiting from the large optimization space, the footprint is
A comparison of phase change materials in reconfigurable silicon
These devices consist of optical directional coupler switches that split incoming light into two coherent waves, and the signal is programmed by controlling the relative phase difference and intensity in the
Optical Couplers | Springer Nature Link
Optical couplers are one of the most important classes of integrated optical components. These devices are used in directional routing of a light signal from one waveguide to another or in
Methodology for Fabrication-Tolerant Planar Directional Couplers
A new methodology for realizing fabrication-tolerant planar directional couplers is proposed and experimentally demonstrated. Performance of power splitting and WDM couplers can
Chapter 11
The optical directional coupler, analogous to the microwave elementl of the same name, consists of paral lel channel optical waveguides sufficiently closely spaced that energy is transferred from one to
Robust Characterization of Integrated Photonics Directional Couplers
Abstract Directional couplers are essential components in integrated photonics. Given their widespread use, accurate characterization of directional couplers is crucial for ensuring optimal
Design and modeling of a fabrication tolerant and broadband directional
We present a design for a fabrication tolerant and broadband directional coupler in photonic integrated circuits based on IMEC''s iSiPP50G silicon photonics platform. We demonstrate that such a design
Fabrication Tolerant Directional Coupler
We present the design of a fabrication-tolerant directional coupler in a passive photonic integrated chip fabricated on Imec''s iSiPP50G silicon photonics platform. Based on Finite Difference Eigenmode,
Temperature-dependent coupling characteristics in a silicon photonic
The study proposed in this paper introduces a novel methodology to theoretically analyze how temperature influences the coupling characteristics of waveguide directional couplers within two
Designing Smarter Directional Couplers with Parametric
In this tutorial, we''ll uncover the benefits of creating a parametric model for directional couplers, leveraging the advanced layout and model-building
Tapered acoustical directional couplers for integrated acousto-optical
A coupled mode description of the acousto-optical polarization conversion in converters with acoustical directional couplers has been developed and applied to several tapered acoustical directional
Directional Coupler
Beam splitters and directional couplers are fundamental optical devices used for signal splitting and combining in photonic networks. There is a high demand for compact, low-loss, and
Analysis and optimisation of bidirectional optical couplers in PCBs
Integrated optical waveguides on board level gain more interest with growing bandwidth. Due to limited space on board level, a new approach is to use bidirectional optical transmission on