Packaging method of integrated optical isolator and integrated optical isolator

Abstract

The invention discloses a packaging method of an integrated optical isolator and the integrated optical isolator, and relates to the technical field of optical fiber communication. The method includes: laminating the first magneto-optic crystal and the birefringent crystal to form a substrate; dividing the substrate into a front substrate, a middle substrate and a rear substrate, performing ion etching on the surface of the birefringent crystal corresponding to the middle substrate, and Make a magneto-optical rotator on the first magneto-optic crystal after etching; use the birefringent crystal corresponding to the front substrate to form a polarizer, and use the birefringent crystal corresponding to the rear substrate to form a polarizer; couple the polarizer to the optical fiber , coupled to the output fiber on the analyzer to obtain an integrated optical isolator. In the present invention, the first magneto-optic crystal is pasted with birefringent crystal, and the polarizer and the polarizer are prepared at the same time, so the product quality is high, the processing technology is simple, the processing efficiency is high, and the processing cost is reduced.

Description

Technical field [0001] The present invention relates to the field of fiber optic communication technologies, and more particularly to a package method and an integrated optical isolator of an integrated optical isolator. Background technique [0002] In the optical fiber communication system, there is always a reverse light generated by many reasons, the presence of such reverse light, resulting in a self-coupling effect between the optical path system, making the operation of the laser unstable and generate reflection noise, and the optical amplifier gain Changes and self-excitement, causing the entire fiber communication system to work properly. The optical isolator can realize the forward transmission of the optical signal while suppresses reverse light. [0003] The main principle of the optical isolator is an irreversible transmission of light-polarized non-optical imaginary adjustment using a magnetoscope material. Therefore, the configuration of an optical isolator is main...

AI Technical Summary

Problems solved by technology

[0004] At present, the existing technology to manufacture an integrated optical isolator generally processes a polarizer, an analyzer, and a magneto-optical rotator on a crystal substrate, and the processing technology is cumbersome and the processing cost is high.

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