Abstract We propose an all-optical switch based on an asymmetric directional coupler structure with epsilon-near-zero (ENZ) layer.
The proposed 10-dB directional coupler and 3-dB directional coupler feature good energy confinement, ultra-compact, and low propagation loss, which has potential applications in photonic
Directional Couplers from Sirius Microwave, Standard, Cryogenic and Military Temperature Ranges, Frequency Range 1 kHz to 30 GHz
The microstrip realization is typical of most directional couplers in that it comprises two parallel signal lines with the electric and magnetic fields of
Temperature changes cause a shift in wavelength and coupling length increase which describes the characteristics of the thermo-optic effects on the directional couplers.
The periodicity in the direction of Port 1 and Port 2 is different from Port 3 to allow coupling of downstream and upstream wavelengths, respectively.
Our directional coupler selection comprises a variety of technologies including Low Temperature Co-fired Ceramic (LTCC), monolithic microwave integrated circuit (MMIC), transformer, microstrip /
Silicon photonics is an enabling technology that provides integrated photonic devices and systems with low-cost mass manufacturing capability. It
This study explores the impact of graphene integration on lithium niobate (LiNbO3, LN) ridge waveguides and directional couplers, focusing on coupling efficiency, polarization-dependent
5.11.2.2 Nonplasmonic Optical Biosensors Photonic waveguide biosensor is an emerging optical technology that has recently been under intensive investigation. It includes planar optical waveguide
SEDI-ATI''s 1×2 achromatic fiber-optic multimode couplers have been designed for applications where wideband and achromaticity are required at an attractive cost.
To address these challenges, we propose a novel direct measurement technique that offers greater robustness to variations in optical interfaces, while bypassing extinction ratio
Its compact size and low-loss characteristics make it highly portable and well-suited for drone-based multi-gas detection applications.
Directional couplers are multiple-waveguide couplers used for codirectional coupling. They can be used in many different applications, including power splitters, optical switches, wavelength filters, and
A compact directional coupler fabricated on a silicon photonic platform is presented, with a power-splitting ratio that can be tuned through a transverse temperature
The document discusses optical directional couplers, which are fiber optic devices that combine or split an optical signal between two fiber ports. It describes how directional couplers work using the
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
Learn how directional couplers work, their key specifications, advantages, and practical applications in RF and microwave systems. A simple
An optical directional coupler is one of the most basic inline fiber-optic components, often used to split and combine optical signals, or tap-off a small portion of the optical power for monitoring.
However, fabrication tolerances, such as waveguide width, wafer height variations, and sensitivity to temperature changes, significantly impact their robustness and performance. In this
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