A combo pon optical device

By employing PBS design and 4° coupling end face pin coating, combined with collimating lens and beam splitting assembly, and optimizing the optical path design, the problems of complex structure and low coupling efficiency of COMBO PON optoelectronic devices are solved, achieving higher coupling efficiency and spot quality.

CN224383500UActive Publication Date: 2026-06-19WUHAN HUAGONG GENUINE OPTICS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN HUAGONG GENUINE OPTICS TECH CO LTD
Filing Date
2025-05-16
Publication Date
2026-06-19

AI Technical Summary

⚠Technical Problem

Existing COMBO PON optoelectronic devices suffer from complex structures and low coupling efficiency.

⚗Method used

The COMBO PON optical device with PBS design includes a transmitter assembly and a housing. It uses a 4° coupling end face ferrule with an anti-reflection coating, combined with a collimating lens and a beam splitter assembly. The optical path design is optimized to improve coupling efficiency and reduce optical crosstalk.

🎯Benefits of technology

It achieves higher coupling efficiency and light spot quality, reduces passive components, lowers light loss, and has a compact structure to prevent glue overflow from affecting product performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention belongs to the field of optical communication technology, specifically providing a COMBO PON optical device, including a transmitter assembly and a housing with a mirror cavity; the housing has an optical port, an optical transmitting port, and multiple optical receiving ports; the mirror cavity contains a beam splitter for splitting the incident combined light entering through the optical port; the transmitter assembly includes a PBS assembly and multiple lasers; the PBS assembly is located on the output optical path of the lasers; the beam splitter and the optical port are sequentially arranged on the output optical path of the PBS assembly. The use of a PBS in the transmitter structure reduces other passive components, ensures maximum coupling efficiency and beam quality, and requires less space. The optical path is designed as parallel light, lengthening the optical path while improving the coupling efficiency between the laser and the detector. The overall structure of this optical device, while ensuring that the optical path and beam size are not affected and the structure is reliable, improves coupling efficiency through optical simulation.
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