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Relationships between speed and tolerances for self-electro-optic-effect devices.

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This study introduces a method to calculate bit rates for self-electro-optic-effect devices (SEEDs), showing high-contrast devices tolerate optical power variations better. SEED shift registers offer comparable bit rates to optical systems.

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Area of Science:

Optoelectronics
Photonics
Device Physics

Background:

Self-electro-optic-effect devices (SEEDs) are crucial for optical computing.
Understanding SEEDs' performance under varying optical power is essential for reliable system design.
Previous research has explored SEED functionality but lacked detailed bit rate-tolerance calculations.

Purpose of the Study:

To develop a method for calculating the relationship between system bit rates and optical power tolerances in SEEDs.
To analyze the impact of optical power variations on the performance of high-contrast and differential SEEDs.
To determine optimal power ratios for SEED logic nodes and shift registers and compare optoelectronic vs. optical SEED cascading.

Main Methods:

Developed a calculation method to correlate system bit rates with optical power tolerances for SEEDs.
Analyzed high-contrast-ratio and differential SEEDs under optical power variations.
Calculated control-beam to signal-beam and transfer-beam to clock-beam power ratios for SEED switching nodes and shift registers.

Main Results:

High-contrast-ratio SEEDs demonstrate improved bit rates when faced with optical power variations.
The method successfully calculated power ratios for logic SEED switching nodes and shift registers.
Optoelectronically cascaded SEED shift registers exhibit bit rates comparable to optically cascaded symmetric SEEDs.

Conclusions:

The developed method provides a quantitative link between SEED bit rates and optical power tolerances.
High-contrast SEEDs offer enhanced robustness against optical power fluctuations, crucial for practical applications.
Optoelectronic cascading in SEEDs presents a viable alternative to optical cascading, achieving similar performance levels.