Remote optical control of an optical flip-flop

Area of Science:

• Photonics and Optical Engineering
• Semiconductor Devices
• All-Optical Signal Processing

Background:

• Optical flip-flops are fundamental bistable devices for optical memory and switching.
• Existing control methods often require direct physical access or specific wavelength alignment.
• Remote control offers enhanced flexibility and scalability in optical systems.

Purpose of the Study:

• To experimentally demonstrate remote optical control of a holding-beam-enabled optical flip-flop.
• To utilize cross-gain modulation in a semiconductor optical amplifier (SOA) for remote signal manipulation.
• To explore the benefits of all-optical remote control for scalable optical computing.

Main Methods:

• Employing optical control signals to modulate the power of a holding beam via cross-gain modulation in a remote SOA.
• Utilizing a resonant-type SOA to achieve flip-flop action based on the modulated holding beam's power.
• Demonstrating control using low-power optical pulses with non-restricted wavelengths.

Main Results:

• Successful experimental demonstration of remote optical flip-flop control.
• Validation of cross-gain modulation in a remote SOA for effective holding beam power adjustment.
• Confirmation that control is achievable with submilliwatt pulses independent of holding beam wavelength.

Conclusions:

• Remote optical control of flip-flops is feasible and effective.
• This technique enables flexible, all-optical manipulation of optical bistable devices.
• Potential for controlling multiple flip-flops with single optical signals and advancing all-optical systems.