Abstract: The driver circuit comprises a first node (J1), which is connected to a first terminal of the Pockels cell (CP), a second node (J2), which is connected to a second terminal of the Pockels cell (CP), wherein the first node (J1) is connected to a first potential (+HV) via a first switching unit (S1) and the second node (J2) is connected to the first potential (+HV) via a second switching unit (S2) and wherein the first node (J1) is connected to a second potential (?HV) via a first resistance (R1) and the second node (J2) is connected to the second potential (?HV) via a second resistance (R2); and wherein the first node (J1) is connected to the second node (J2) via a series circuit comprising a third resistance (R3) and an inductance (L1).
Type:
Grant
Filed:
August 5, 2016
Date of Patent:
December 19, 2017
Assignees:
BME Messgeräte Entwicklung KG, Helmholtz-Zentrum Dresden-Rossendorf e.V.
Inventors:
Thorald Horst Bergmann, Fedor Bergmann, Mathias Siebold, Markus Löser
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.
Type:
Grant
Filed:
December 22, 2006
Date of Patent:
January 19, 2010
Assignees:
Trumpf Laser GmbH + Co., KG, BME Messgeraete Entwicklung KG
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.
Type:
Application
Filed:
December 22, 2006
Publication date:
January 24, 2008
Applicants:
BME MESSGERAETE ENTWICKLUNG KG, TRUMPF LASER GMBH + CO. KG