Optical circulator and optical circulator core

By using a method of integrally bonding and cutting optical components, the problem of high production costs in the miniaturization of optical circulators has been solved, enabling low-cost, high-efficiency production and flexible application of optical circulator cores.

CN224383560UActive Publication Date: 2026-06-19GUANGDONG SANSHIYUAN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG SANSHIYUAN TECH CO LTD
Filing Date
2025-06-25
Publication Date
2026-06-19

AI Technical Summary

⚠Technical Problem

In the process of miniaturizing existing optical circulators, the difficulty of component cutting and assembly increases, leading to higher production costs, especially since the assembly of half-wave plates is more difficult.

⚗Method used

The large-size optical components are first fixed into a whole using an integral bonding process, and then the optical circulator core is cut and shaped. The thickness of the optical components is configured as needed. Combined with the optical axis setting of the rotating plate and birefringent crystal, optical path control and polarization state rotation are realized. An anti-reflection coating is applied to reduce insertion loss.

🎯Benefits of technology

It reduces the manufacturing process difficulty and cost of optical circulators, improves production efficiency, and enables flexible expansion of optical circulator channels, making it suitable for different application scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of optical circulator and optical circulator core, and the optical circulator includes three ports, and the core is arranged between two ports;The core has first half wave plate, first rotating sheet, birefringent crystal, second rotating sheet and second half wave plate arranged in order along optical path, and first half wave plate, first rotating sheet, birefringent crystal, second rotating sheet and second half wave plate are glued together;The core is integrally cut into shape, and the cross section of first half wave plate, first rotating sheet, birefringent crystal, second rotating sheet and second half wave plate is equal along optical path direction;And, the thickness of first half wave plate is less than the thickness of first rotating sheet, and the thickness of second half wave plate is less than the thickness of second rotating sheet.The utility model further provides the core used by the above-mentioned optical circulator.The production process of the utility model's optical circulator is simple, and production cost is lower.
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