Optical wavelength division multiplexing device

Abstract

The invention discloses an optical wavelength division multiplexing device. The device comprises an optical convergence part, a first conduction part, an optical dividing part and a second conductionpart, wherein the optical convergence part is used for converging several beams of optical signals of different wavelengths to the same position of an end face of the first conduction part, the optical dividing part is used for respectively making the optical signals of different wavelengths propagated by the first conduction part be incident on different second conduction parts, and the first conduction part and the second conduction part are respectively used for transmitting the optical signals; the optical convergence part comprises humps arranged along a cross section where a the opticalbeams pass through, the humps are arranged in the form of annulus arrays, the annulus arrays which have different radius and are formed by arrangement of the humps are respectively used for making theoptical signals of different wavelengths penetrate through and be converged at the same position of the end face of the first conduction part. The optical wavelength division multiplexing device provided by the invention can converge the optical signals of different wavelengths to the same position of the end face of the conduction part without chromatic dispersion in an optical wave multiplexingprocess, and can overcome defects of the existing technology.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to an optical wavelength division multiplexing device. Background technique [0002] At present, human society has entered the era of information explosion. With the increasing amount of information, the requirements for communication transmission capacity are also increasing. In the field of optical communication, optical signals of more bands can be transmitted simultaneously in one optical fiber, which can effectively improve the information transmission capacity. Lossy wavelength division multiplexing is a key technical problem to be solved in this field. [0003] In the prior art, the blazed grating type wavelength division multiplexer uses the blazed grating to realize the light wave multiplexing process and the light wave demultiplexing process. The grating emits all optical signals at the same angle, and the combined light is coupled into the transmission fib...

AI Technical Summary

Problems solved by technology

However, during the multiplexing process of this kind of wavelength division multiplexer, due to the dispersion problem of the lens, it will not be able to ideally couple the optical signals of different wavelength bands into the transmission fiber

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