Free-space fiber hybrid distributed optical cross-connect interconnect module.

Area of Science:

• Optical networking
• Photonics
• Telecommunications engineering

Background:

• Large-scale optical cross-connect networks are crucial for modern data centers and high-performance computing.
• Existing solutions face challenges in scalability and efficient management of optical signal routing.
• Free-space optics offer potential for high-density interconnects but require robust coupling to fiber.

Purpose of the Study:

• To propose and demonstrate a novel free-space-fiber hybrid interconnect system for scalable optical cross-connect networks.
• To address the challenge of managing intersecting optical beams in large-scale systems.
• To enable flexible distribution of optical transceivers in a compact form factor.

Main Methods:

• Implementation of a hybrid system combining free-space optics for beam manipulation and optical fibers for signal transmission.
• Design of the free-space portion to handle shuffle operations for intersecting optical beams.
• Integration of optical transceivers for signal input and output, allowing for distributed placement.

Main Results:

• A compact and packaged prototype of the hybrid interconnect system was successfully demonstrated.
• The prototype effectively handles a 256x256 input-output channel configuration.
• The system design facilitates efficient management of optical beam intersections and signal routing.

Conclusions:

• The proposed free-space-fiber hybrid interconnect system is a viable solution for building large-scale optical cross-connect networks.
• This approach offers a scalable and efficient method for optical signal management.
• The demonstrated prototype validates the system's capability and potential for future high-capacity optical networks.