Mach-Zehnder recording systems for pulsed power diagnostics

Area of Science:

• Physics
• Optical Engineering
• Nuclear Engineering

Background:

• Fiber-optic transmission systems are crucial for high-speed data recording in advanced research facilities.
• Mach-Zehnder modulators are key components in developing robust optical links.
• National Ignition Facility (NIF) and Z accelerator require advanced diagnostic systems.

Purpose of the Study:

• To present the design and performance of analog fiber-optic links based on Mach-Zehnder modulators.
• To evaluate the impact of radiation on data quality for these systems.
• To assess the technology readiness level for Mach-Zehnder links in pulsed-power environments.

Main Methods:

• Utilized Mach-Zehnder modulators for analog fiber-optic transmission and recording.
• Implemented a dual-modulator system per detector channel for high dynamic range and continuous coverage.
• Conducted laboratory and experimental (shot) data analysis to estimate radiation effects.

Main Results:

• Demonstrated high dynamic range and full recording bandwidth with no gaps in coverage using dual Mach-Zehnders.
• Estimated upper limits for radiation effects on recorded data quality.
• Assessed the technology readiness level for current and future implementations.

Conclusions:

• Mature analog fiber-optic links based on Mach-Zehnder modulators are effective for diagnostics at NIF and similar facilities.
• The technology shows promise for deployment in radiation-intensive environments, with characterized performance.
• Further development is ongoing for pulsed-power facilities with specific requirements.