Silicon-based micro-ring-light router based on black phosphorus

Abstract

The invention discloses a silicon-based micro-ring-light router based on black phosphorus. The router comprises a bus optical waveguide I and a bus optical waveguide II which are parallel to each other; a micro ring is installed between the bus optical waveguide I and the bus optical waveguide II; the micro ring is connected with an electrode; the whole or partial region of the micro ring are provided with a black phosphorus layer; the micro ring provided with the black phosphorus layer comprises a micro ring silicon layer, a first isolation dielectric layer, a black phosphorus layer, a second isolation dielectric layer, a micro ring silicon layer and a cladding; one side of the black phosphorus layer extends under the electrode. The silicon-based micro-ring-light router is capable of selecting and separating optical signals having a specific wavelength value flexibly and in real time; The device has advantages of flexible design, fast reaction speed, low energy consumption, convenient use, and satisfies different wavelength division multiplexing requirements; by applying different bias voltages to different electrodes, it is possible to realize the selection of optical signals of different wavelengths to realize the optical routing function.

Description

technical field [0001] The invention belongs to the technical field of integrated optics, and discloses a silicon-based microring optical router based on black phosphorus, which is composed of a silicon-based microring containing black phosphorus and electrodes coupled with two straight waveguides, and can be used to realize optical wavelength division multiplexing and optical Routing function. Background technique [0002] Silicon on Insulator (SOI, Silicon on Insulator) material has a high refractive index difference, which can realize compact photonic devices in CMOS (Complementary-Metal-Oxide-Semiconductor) compatible process. A microring resonator coupled by a ring optical waveguide and a straight optical waveguide is a compact optical filter, which can be used to build a variety of integrated optical devices for different purposes, including optical modulators, optical switches, optical add / drop Multiplexers, optical routers, optical sensors, etc. Theoretical and exp...

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Problems solved by technology

[0005] The invention provides a silicon-based microring optical router based on black phosphorus, which solves the problem that graphene itself has no band gap and is difficult to be highly integrated with other optical devices

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