Patent · US Active

Controlling pockels cells

US7649667B2 · kind B2 · utility

6Cited by

7References

19Claims

0Family size

Assignees

TRUMPF Laser GmbH + Co. KG · DE
BME Messgeräte Entwicklung KG · DE

Inventors

Thorald Horst Bergmann · Rosenheim, DE
Rainer Flaig · Eschbronn, DE
Dirk Sutter · Mountain View, US

Key dates

Filing date	Dec 22, 2006
Grant date	Jan 19, 2010
Priority date	—
Expiry date	Oct 29, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH01S3/235
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A controllable Pockels cell system has a switching unit that can apply voltage to the Pockels cell. The Pockels cell system also features a delay unit that enables setting of a precise time when voltage is applied or removed from the Pockels cell. This allows displacing in time the voltage pulse applied to the Pockels cell, in this manner also displacing in time the transmission pulse of the Pockels cell with an analyzer located behind the Pockels cell. Thus it is possible to individually control the amplitude of selected laser pulses. The switching unit can either be a simple push-pull circuit or a bridge circuit made from two push-pull circuits.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.