Components for the implementation of free-space optical crossbars

Area of Science:

• Optoelectronics
• Optical Computing
• Photonics

Background:

• Free-space optical switching is crucial for high-bandwidth data communication.
• Developing compact and efficient optical components is essential for scalable switch architectures.

Purpose of the Study:

• To design and characterize an optical system for a 64x64 free-space optical matrix-matrix crossbar switch.
• To evaluate the performance of key optical components and their suitability for high-speed operation.

Main Methods:

• Detailed design and analysis of lenses, diffractive optical elements, and polarizing beamsplitters.
• Integration of optical components with optomechanical hardware.
• Performance testing of individual components to determine throughput and error rates.

Main Results:

• Achieved throughput levels of -6.9 dB for the optical components.
• Demonstrated compatibility with system operation at bit error rates of 10⁻¹².
• Confirmed suitability for data rates of ≥270 Mbits s⁻¹.

Conclusions:

• The developed optical system components are suitable for constructing a 64x64 free-space optical crossbar switch.
• The achieved performance metrics support high-speed, low-error data transmission in optical switching applications.