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World of Photonics

June 22-25, 2015
Hall B1, Stand 314
Products
  Flashlamp pumping
Flashlamp drivers
Capacitor chargers
Discharge circuits
Simmer supplies
  Pockels cell driving
Pockels cell drivers
QBD-BT-series
QBU-BT-series
Pockels cell driver boards
High voltage switches
Pulse picker and regen amplifier drivers
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Pockels cell drivers

QBD-BT-series bench-top Pockels cell drivers

 Applications

  • Q-switching

 Features

  • Push-up or pull-down schemes
  • Up to 6 kV output voltage
  • Up to 100 kHz repetition rate
QBD-BT-series Pockels cell drivers

 Description

QBD-BT-series consist of ten Pockels cell drivers differ with their output voltage range (up to 6.0 kV) and operating scheme (see also How to order? section).

Operating scheme may be either (pull down scheme (= normally on) or push up scheme (= normally off). Scheme should be predefined at the time of order.

High repetition rates and fast transition times are additional benefits of QBD-BT-series Pockels cell drivers.


 Performance

For 5.0 kV modification continuously operated in internal synchronization mode we warrant the performance table as follows:
11 pF load capacitance
Voltage, kV 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Max. rep. rate, kHz
56 40 31 24 18 15 12
23 pF load capacitance
Voltage, kV 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Max. rep. rate, kHz
45 32 24 18 14 12 9

External synchronization mode shows usually a little higher performance.

In the burst-mode (= short time operations) performance is increasing approximately twice and may achieve 100 kHz value at low operating voltages and load capacitance.

High load capacitance decreases the performance.


 Specification

Input:
Voltage 110/230 VAC; 50/60 Hz
Current 1 A max
Output:
Working modes pull-down (= normally on)
or push-up (= normally off)
Synchronization internal and external
Voltage, high level regulated, up to 6 kV 1
Voltage, low level fixed, 0 V
Repetition rate up to 50 kHz (CW), up to 100 kHz (burst-mode) 1
Rise time (UP-modifications)
Fall time (DN-modifications)
< 20 ns 2
Recovery time 5-10 us (depends on load)
Jitter 10 ns
Delay time 1 us
Load capacitance up to 0.5 nF 1
Environment:
Operation temperature 0 +40 C
Storage temperature -20 +60 C
Humidity 90 %, non-condensing
Size (LxWxH) 225x200x60 mm
Weight 2 kg
1 These parameters aren't indepenent and cannot achieve their maximum at the same time...
2 10-90% level; warranted at load capacitance 23 pF and below...

 How to order?

Model * Description
QBD-BT-6024-DN 2.4-6 kV output voltage high level adjustment range,
pull-down modification
QBD-BT-5020-DN 2.0-5 kV output voltage high level adjustment range,
pull-down modification
QBD-BT-4016-DN 1.6-4 kV output voltage high level adjustment range,
pull-down modification
QBD-BT-3012-DN 1.2-3 kV output voltage high level adjustment range,
pull-down modification
QBD-BT-2008-DN 0.8-2 kV output voltage high level adjustment range,
pull-down modification
QBD-BT-6024-UP 2.4-6 kV output voltage high level adjustment range,
push-up modification
QBD-BT-5020-UP 2.0-5 kV output voltage high level adjustment range,
push-up modification
QBD-BT-4016-UP 1.6-4 kV output voltage high level adjustment range,
push-up modification
QBD-BT-3012-UP 1.2-3 kV output voltage high level adjustment range,
push-up modification
QBD-BT-2008-UP 0.8-2 kV output voltage high level adjustment range,
push-up modification
 
Option ** Description
-LJ Low-jitter modification
 
* select one
** select any q-ty of options or none
 
Example: QBD-BT-4016-DN
 
 
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