Aperture scalable, high-average power capable, hybrid-electrode Pockels cell

Area of Science:

• Optics and Photonics
• Materials Science

Background:

• Pockels cells are crucial for laser modulation.
• Existing designs face limitations in high-energy, high-repetition-rate applications.

Purpose of the Study:

• To develop and demonstrate a novel hybrid-electrode Pockels cell (HEPC).
• To achieve low-voltage and fast-response operation for advanced laser systems.

Main Methods:

• Utilized a thin z-cut deuterated potassium dihydrogen phosphate (DKDP) crystal.
• Implemented a reflective, longitudinally driven, and cooled Pockels cell design.
• Integrated a plasma chamber for the incident electrode and a silicon-substrate mirror for back-side electrode and heat sinking.

Main Results:

• Demonstrated a functional HEPC with integrated thermal management.
• Proposed and validated a time-multiplex pass-by driving method.
• Achieved efficient operation suitable for demanding laser environments.

Conclusions:

• The developed HEPC is a competent device for high-energy and high-repetition-rate lasers.
• The hybrid electrode and thermal coupling design enhance performance.
• The proposed driving method enables optimized operation.