All-optical wavelength converter based on boron alkene-micro-nano optical fiber hybrid waveguide

Abstract

An all-optical wavelength converter based on a boron alkene-micro-nano optical fiber hybrid waveguide belongs to the technical field of optical information, and aims to solve the problems of low conversion efficiency and narrow tunable bandwidth in the existing all-optical wavelength converter, a tunable optical fiber laser is connected with a signal modulation structure carrying information as a signal light source, and is connected with an end a of a first coupler; the distributed feedback laser is connected with the end b of the first coupler after pump light is connected with a polarization controller; the common end c of the first coupler is sequentially connected with the polarization controller erbium-doped optical fiber amplifier; the erbium-doped optical fiber amplifier is connected with a boron alkene-micro-nano optical fiber composite structure; the boron alkene-micro-nano optical fiber composite structure is connected with the d end of a second coupler, and the e end output of the second coupler is connected with a spectrograph to measure a spectrum; and the f end of the second coupler is connected with a bandwidth adjustable filter through a tunable attenuator and is input to a spectrograph and an oscilloscope. And a boron alkene-micro-nano optical fiber composite structure is adopted to improve the wavelength conversion efficiency. The method is applied to the field of all-optical wavelength conversion and facilitates small integration.

Description

technical field [0001] The invention relates to an all-optical wavelength converter based on boronene-micro-nano fiber hybrid waveguide, which belongs to the technical field of optical information. Background technique [0002] In today's large-capacity and high-bandwidth optical communication systems, the miniaturization and integration of devices has become one of the trends in scientific research and technology applications. Micro-nano fiber is a thin glass wire on the micro-nano scale. Photonic devices based on micro-nano fiber have unique functions, and the loss is smaller than other micro-nano waveguides, which is conducive to the realization of long-distance interaction between light and waveguide materials. The micro-nano fiber can confine the guided light to the wavelength or even sub-wavelength level, and has a strong evanescent field in the air, and its share increases with the decrease of the diameter of the micro-nano fiber. Based on this characteristic, the ev...

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Problems solved by technology

[0006] In order to solve the problems of low conversion efficiency and narrow tunable bandwidth in the existing all-optical wavelength converter, the present invention proposes an all-optical wavelength converter based on borocene-micro-nano fiber hybrid waveguide

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