LDP-3840B Pulsed Laser Diode Driver0 pages

LDP
3840B
Precision Pulsed
Current Source

Product Features
Precision pulsed current to 3A
Clean current pulses with fast rise
times (<50nS) and low overshoot
(<5%)
Built-in laser diode protection
Adjustable pulse width, duty cycle,
and frequency
User-selectable pulse polarity
Accepts external trigger to
control pulses and provides a
trigger to initiate corresponding
measurements
GPIB/IEEE-488 interface

Preliminary
The new LDP-3840B Precision Pulsed current source
is a microprocessor-based instrument specically designed
for pulse testing and characterizing laser diodes. The
LDP-3840B provides up to 3A of peak pulse current with
adjustable pulse widths from 100ns to 10ms.
Careful attention to design for clean pulses at laser diode
load levels provides a low noise pulsed current with fast rise
times while maintaining overshoot of less than 5%.
Testing and characterization can be automated with the
3840B through the GPIB/IEEE interface. For basic system
integration, a trigger can be used to control pulses and
initiate corresponding measurements without a command
program.
Like all ILX Lightwave laser diode control instruments,
the LDP-3840B incorporates laser diode protection and
safety features such as current limits, output shorting circuits,
AC line lters, and double-shielded transformers to help
suppress laser damaging transients.

An Affordable Precision Pulsed Current Source for
Testing and Characterizing Laser Diodes

LDP

3840B
Precision Pulsed
Current Source