Free-space optical beam multiplexing system and related methods

The free-space multiplexing system addresses bandwidth and stability issues in space optical communication by using angle-invariant optical modules to combine polarized beams, enhancing transmission reliability and simplicity.

JP2026518052APending Publication Date: 2026-06-03BERTIN TECHNOLOGIES
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
BERTIN TECHNOLOGIES
Filing Date
2024-05-16
Publication Date
2026-06-03

AI Technical Summary

Technical Problem

Existing multiplexing systems for space optical communication face limitations such as reduced bandwidth, complexity, and sensitivity to angular positioning due to the use of dichroic filters, which are not suitable for high-power beam transmission and suffer from thermal instability.

Method used

A free-space multiplexing system using angle-invariant optical modules to combine polarized beams, including interleaving devices and optical conversion modules, which maintain polarization consistency and stability across thermal and mechanical stress, enabling robust multiplexing of multiple beams.

Benefits of technology

The system enhances bandwidth utilization, simplifies architecture, and improves thermal and mechanical stability, making it suitable for high-power beam transmission in space applications, particularly in satellite communications.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2026518052000001_ABST
    Figure 2026518052000001_ABST
Patent Text Reader

Abstract

The present invention relates to a free-space multiplexing system (1) for a polarized beam (10) for transmitting a multiplexed beam (12) in free space, comprising a plurality of optical multiplexing devices (11) on at least two stages (11a), wherein for at least one interleaving stage (11b), the following is performed: at least one multiplexing device (11) comprises an interleaving device (110) including an angle-invariant optical coupling module (113) configured to couple incident beams (10a, 10b) of different polarizations to form an outgoing beam (10c) of mixed polarization, and an optical conversion module (111) configured to change the polarization of the outgoing beam 10c for a multiplexed beam (12a) of the same polarization.
Need to check novelty before this filing date? Find Prior Art