Detachable connection of an optical connector using a base having features for integral optical coupling and detachable mechanical coupling

The removable optical connector system with passive alignment features addresses alignment and thermal expansion issues in PICs, offering flexible and cost-effective optical coupling with high accuracy and reduced insertion losses.

JP2025524601APending Publication Date: 2025-07-30SENKO ADVANCED COMPONENTS INC
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Patent Information

Application Number
JP2025500773
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-07-05
Filing Date
2023-07-11
Publication Date
2025-07-30

AI Technical Summary

Technical Problem

Existing optical fiber connections to photonic integrated circuits (PICs) are costly, inflexible, and lack reliable, non-destructive reconnection capabilities, with alignment issues due to thermal expansion and size mismatches leading to high insertion losses.

Method used

A removable optical connector system using a base with passive alignment features, such as kinematic and elastic averaging, allows for precise, non-destructive reconnection and alignment of optical fibers to PICs, maintaining optical integrity through geometric features and optical elements like microlenses and mirrors.

Benefits of technology

The system provides high alignment accuracy, flexibility, and cost-effectiveness by enabling removable and re-connectable optical coupling, reducing insertion losses and accommodating thermal expansion, while maintaining optical performance.

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Abstract

The present invention provides a removable connection of an optical connector using a base having features for integrated optical coupling and removable coupling. The base enables a removable passive alignment connection to the optical connector. The base is permanently attached and aligned to the PIC chip. The base includes an optical element that redirects and reshapes the incident light to follow the desired shape and path of the optical beam between the optical connector and the optoelectronic device. The base can include a combination of different optical elements having optical properties that produce the desired quality and direction of the optical beam. The base also includes passive alignment features corresponding to the passive alignment features of the opposing face of the optical connector. The base has a monolithic body provided with the optical element and the passive alignment features.
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Citation Information

Patent Citations

  • US11,022,755

  • Demountable optical connector for optoelectronic devices

    US20160161686A1