A Reconfigurable Optical Mode Converter Compatible with WDM

Abstract

The invention provides a reconfigurable optical mode converter compatible with wavelength division multiplexing. The reconfigurable optical mode converter comprises a multiring cascaded part and a mode converter which are connected with each other, wherein the multiring cascaded part consists of a straight waveguide, a passive micro-ring and n-1 adjustable micro-ring resonators; and n is a positive integer being larger than or equal to 2. According to the optical mode converter, multi-ring cascading is applied to the mode converter, so that light in an active micro-ring is equally partitionedinto x parts by changing the resonant state of each adjustable micro-ring resonator, and is downloaded into corresponding waveguides through the resonant micro-ring resonators. Through the mode converter, a fundamental mode can be converted into a plurality of high-order modes simultaneously, i.e., a plurality of modes are generated simultaneously, so that the problem of the need of a large quantity of lasers in an optical communication system is solved. The reconfigurable optical mode converter has high expandability and can be combined with the wavelength division multiplexing, so that the flexibility of the optical communication system is improved.

Description

technical field [0001] The invention belongs to the technical field of optical mode multiplexing, and relates to a reconfigurable optical mode converter compatible with wavelength division multiplexing. Background technique [0002] With the advent of the era of big data, people's requirements for information processing speed and processing capacity have been further improved. By applying advanced optical multiplexing technology to high-speed optical communication systems, researchers have improved the information transmission capacity of optical networks. At present, the most mature multiplexing technology is wavelength division multiplexing, and with the increase of data communication capacity, the number of laser sources required by wavelength division technology will increase proportionally, which makes the cost of optical communication system also greatly increase. raised. To this end, the researchers introduced the mode multiplexing technology of light in the transmi...

AI Technical Summary

Problems solved by technology

However, the above-mentioned devices cannot generate multiple modes at the same time, and cannot process the required modes in parallel, which greatly reduces the ability of the optical communication system to process information, and cannot meet the needs of the increasingly large optical communication system.

Images