In this paper, an investigation on all-optical direction couplers has been demonstrated. A two-dimensional, holes in slab, photonic crystal structure has been chosen for designing the
Electro-optic (EO) mechanisms have been used to achieve a fast and active (power) switching in directional couplers as first demonstrated in lithium niobate (LiNbO 3 ${}_{3}$)
Optical directional couplers (ODCs) consist of two or more closely-located optical waveguides, whose modes can couple evanescently and thereby exchange their powers, realizing,
In this paper, a compact 1 × 2 arbitrary ratio OPS based on directional coupler structure with Sb 2 Se 3 is proposed for low-power large-scale PICs. The desired OPS demonstrates the
Micro-electromechanical system (MEMS) photonic switches based on adiabatic directional couplers (ADCs) potentially offer the advantages including large fabrication tolerance and
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 analyze two
This paper focuses on the design, optimization, and characterizations of a low-loss, compact directional coupler-based duplexer.
Abstract Ultracompact optical directional coupler is one of the key elements for nanoscale optical networks and highly integrated optical circuits. Although the transverse size has been reduced down
Several modifications of coupled mode theory, along with its classical formulation, are examined and compared to commercial beam envelope method (BEM) and
Several optical passive components, including directional couplers (DC), Mach–Zehnder interferometers (MZI), arrayed waveguide gratings (AWG), and multimode interference couplers (MMI
Due to the inability of conventional tunable directional couplers (TDCs) to maintain a fixed phase while tuning the reflectivity, Mach-Zehnder interferometers (MZIs) are employed as the primary
Fault-tolerant quantum computing mandates very accurate and robust quantum gates. In this work, we demonstrate high-fidelity directional couplers for
Ever get confused about the differences between directional, bi-directional and dual-directional couplers? Here''s everything you need to know
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.
Qualitative Description of the Operation of Directional Couplers Marcatili''s Improved Coupled‐Mode Equations Directional Couplers with Uniform Cross Section and Constant Spacing
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
Abstract Directional couplers are essential components in integrated photonics. Given their widespread use, accurate characterization of directional couplers is crucial for ensuring optimal
The design of an all-optical 3-dB and 10-dB directional coupler that functions as an optical switch if applied a control signal by fusing two photonic crystal waveguides with a coupling
The concept of optical switching utilizing directional couplers and the electro-optic effect has been leveraged to design various sequential circuits. By applying an appropriate voltage to the
Directional couplers are multiple-waveguide couplers used for codirectional coupling. They can be used in many different applications, including power
The realization of this directional coupler necessitated the development of an integrated quasi-optical substrateless silicon platform that is
Linear and nonlinear directional couplers are currently used in fiber optics communications. They may also play a role in multiphoton approaches to quantum information
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
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