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Acousto-optic device-based high-speed high-isolation photonic switching fabric for signal processing
Optics Letters
|July 1, 1997
Summary
A novel photonic switching fabric utilizes acousto-optic devices for high-speed signal processing. This technology achieves fast switching speeds and excellent optical isolation, crucial for advanced applications.
Area of Science:
- Photonics
- Optical Engineering
- Signal Processing
Background:
- Advanced signal processing demands low-noise, high-speed capabilities.
- Existing photonic switching technologies face limitations in achieving both high speed and isolation.
Purpose of the Study:
- To introduce a novel high-speed, switched, binary photonic switching fabric.
- To demonstrate a compact, self-aligning optical geometry for photonic signal control.
Main Methods:
- Utilized two acousto-optic devices in a compact, self-aligning optical geometry.
- Implemented acousto-optic device-based Bragg matching for alignment.
- Constructed and tested a proof-of-concept experimental fabric.
Main Results:
- Achieved nearly 60% light throughput.
- Demonstrated a 39-dB optical isolation level for both switching states.
- Exhibited a switching time of 138 nanoseconds.
Conclusions:
- The developed photonic switching fabric offers simultaneous high switching speeds and high optical isolation.
- This technology is suitable for advanced low-noise, high-speed signal-processing applications.
- The compact, self-aligning design simplifies integration and enhances performance.
