Fluorotellurite er-doped optical fiber and ultra-wide-band optical fiber amplifier with optical fiber

Abstract

The invention belongs to the technical field of ultra-wide-band, special optical fibers and optical appliances, and particularly relates to a fluorotellurite er-doped optical fiber. The fluorotellurite er-doped optical fiber consists of a fiber core and a coating layer coated at outside of the fiber core; the fluorotellurite er-doped optical fiber is characterized by being prepared by mole TeO2: ZnF2: Na2CO3, Er2O3; the coating layer is prepared by a third raw material with the mole ratio of TeO2: ZnF2: Na2CO3=(53-57): (33-37): (4-6); the diameter of the fiber core is (5.0+ / -0.4) miu m; the diameter of the coating layer is (125+ / -0.5) miu m. The invention further discloses a preparation method of the optical fiber, a terminal formation method and an ultra-wide-band optical fiber amplifier with the optical fiber. The fluorotellurite er-doped optical fiber has a softer optical fiber signal channel with wider band width, flatter gain, and more storage, and can reduce the input of light devices, greatly reduces the system cost, and others.

Description

technical field [0001] The invention belongs to the technical field of ultra-broadband, special optical fiber and optical devices, and in particular relates to a fluorotellurate-doped fiber and an ultra-broadband optical fiber amplifier containing the optical fiber. Background technique [0002] Today's society has entered the information age, and the rapid development of information technology is inseparable from efficient and fast information transmission carriers and technologies. Optical fiber communication technology adapts to this technological development trend, and has been promoted and popularized around the world in just a few decades. With the advancement of the "Internet +" action plan, the society promotes the integration of mobile Internet, cloud computing, big data, Internet of Things, etc. with modern manufacturing, and promotes the healthy development of e-commerce, industrial Internet and Internet finance. The development of the Internet is inseparable fro...

AI Technical Summary

Problems solved by technology

Moreover, there is a 5nm bandwidth gap between the L (1568~1603nm) band and the C band in the quartz-based EDFA that cannot be utilized

Therefore, the traditional quartz-based EDFA, which mainly works in the C-band (1530~1565nm) region and is widely used at present, can accommodate only about 40 wavelength channels (channel spacing 100GHz), which cannot meet the development needs of the system.

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