Driver for Pockels cell and using this Pockels cell within laser systems

US7260121B2 · kind B2 · utility

Inventors

• Thorald Horst Bergmann · Rosenheim, DE
• Ralf Knappe · Kaiserslautern, DE

Key dates

• Filing date: Nov 3, 2003
• Grant date: Aug 21, 2007
• Expiry date: Apr 10, 2025

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F1/0327
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Driver for Pockels cells and using this Pockels cell within laser systemsThe driver i.e. the electrical control of the Pockels cell is modified from the standardly known H-configuration using the switches S1, S2A; S1A, S2 A by adding at least one more switch (S2B; S1B; S2B). This switch can either replace the usually used recharging resistors (R2) or can be placed to these in parallel. It is also possible to use an arrangement using 4 switches (S1A, S2A, S1B, S2B) and no recharging resistors at all. Using such a driver with a Pockels cell pulses can be selected in laser systems more efficiently. Pulse sequences with well defined widths and spacing can be produced for certain application.