Waveguide optical amplifier

Abstract

The invention provides a waveguide optical amplifier. The waveguide optical amplifier comprises a gain waveguide assembly and a pumping waveguide. The gain waveguide assembly comprises a first gain waveguide and a second gain waveguide which are connected in a bent mode, at least part of the first gain waveguide is close to at least part of the second gain waveguide, and therefore the transmission direction of signals in the first gain waveguide is opposite to the transmission direction of the signals in the second gain waveguide. The pumping waveguide wraps at least part of the gain waveguide assembly, and at least part of the pumping waveguide simultaneously wraps the first gain waveguide and the second gain waveguide which are close to each other. The first gain waveguide and the second gain waveguide which are close to each other are simultaneously coated by the pumping waveguides, so that the length of the pumping waveguides and the number of intervals between the adjacent pumping waveguides can be reduced, the intervals between the gain waveguides coated together can also be reduced, and the size of the waveguide optical amplifier is reduced. Due to the fact that the pumping waveguide wraps the gain waveguides opposite in transmission direction at the same time, a single pumping light source can achieve bidirectional pumping, and the size of the optical amplifier is reduced.

Description

technical field [0001] The application belongs to the technical field of optical amplifiers, in particular to waveguide optical amplifiers. Background technique [0002] The optical amplifier is a basic optical device and one of the important optical devices for the miniaturization and integration of optical devices in the future. It is now widely used in the interconnection of optical devices and optical communication networks. However, the size of the current mainstream optical amplifiers is relatively large, which cannot meet the market demand and technical trend of miniaturization and integration of optical amplifiers. Contents of the invention [0003] In view of this, the application provides a waveguide optical amplifier, including: [0004] The gain waveguide assembly includes a first gain waveguide and a second gain waveguide that are bent and connected, the first gain waveguide has an incident end, the second gain waveguide has an exit end, at least part of the ...

AI Technical Summary

Problems solved by technology

However, the size of the current mainstream optical amplifiers is relatively large, which cannot meet the market demand and technical trends of miniaturization and integration of optical amplifiers.

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