Home / Customization Process for Low-Loss Optical Directional Couplers for Rail Transit
Learn how to leverage IPKISS to optimize the design of directional couplers and implement advanced parametric modeling. Introduction A directional coupler
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We want our directional coupler to be both fabrication tolerant, and broadband, i.e., it has a constant coupling strength over a wide wavelength range. For that, we make the directional coupler
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Abstract Optical directional couplers are the basic components of many optical information devices. The optical directional couplers based on silicon-on-insulator are very attractive due to the
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The proposed directional coupler features good energy confinement, ultracompact and low propagation loss, which has potential application in dense
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A fiber directional coupler is defined as an optical component that splits and combines optical signals by utilizing the interference of evanescent waves from two closely positioned fibers, enabling power
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In this tutorial, we''ll uncover the benefits of creating a parametric model for directional couplers, leveraging the advanced layout and model-building
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The proposed 10-dB directional coupler and 3-dB directional coupler feature good energy confinement, ultra-compact, and low propagation loss, which
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We have designed and reported a broadband and low loss linearly tapered directional coupler as a substitute to replace bulky beam splitter that are deployed currently in OCT systems.
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Here, by exploiting an asymmetric directional coupler design, we demonstrate nonvolatile PCM-clad silicon photonic 1 × 2 and 2 × 2 switches with a low insertion loss of ∼1 dB and a compact
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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
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Abstract—We demonstrate a design for a high-performance 2 × 2 splitter meeting the essential requirements of broadband coupling, support for arbitrary coupling ratio, ultra low-loss, high
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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,
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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
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Compact footprint and low losses are also essential features for circuits comprising multiple coupling stages. In this work, we propose a compact directional coupler with arbitrary coupling ratio, based on
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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
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As manufacturing technique we used an ion exchange process, as this has proven to be highly scalable and can be easily integrated into current PCB manufacturing processes. We developed an optical
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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.
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Abstract and Figures A microprocessor controlled system for fabrication of 2 x 2 flame-fused biconical single-mode fiber directional couplers
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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
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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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In this study, we introduce a design of a TDC based on coupling constant tuning in the thin film Lithium Niobate platform and present an optimized design. Our optimized TDC design
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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.
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Optical directional couplers (ODCs) consist of two or more closely-located optical waveguides, whose modes can couple evanescently and thereby exchange their powers, realizing,
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The realization of this directional coupler necessitated the development of an integrated quasi-optical substrateless silicon platform that is
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In this work, we identify and analyze stationary geometrical dimensions of directional couplers that enhance tolerance to such variations. Through theoretical predictions and experimental
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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
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Qualitative Description of the Operation of Directional Couplers Marcatili''s Improved Coupled-Mode Equations Directional Couplers with Uniform Cross Section and Constant Spacing
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We present an on-chip optical mode exchange between two multiplexed modes by using tapered directional couplers on silicon-on-insulator platform. The device consisting of mode
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In practical applications, the optical directional coupler is an essential component of integrated photonic circuits. The directional couplers in conventional dielectric waveguide are from a
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