The LDP-3830 Pulsed Precision Current Source is specifically designed for controlling laser diodes and quantum cascade lasers. The LDP-3830 provides adjustable peak pulse current up to 5A with a compliance voltage up to 20V, adjustable pulse widths from 25 ns to 1 µs, and adjustable duty cycle from 0.01% to 5.00%.
Careful attention to the design provides for highly repeatable pulse to pulse amplitude and pulse width. Laser protection features incorporated in the LDP-3830 include redundant current limits, transient protection, floating outputs, and safety interlocks.
For seamless integration into your automated test application, the LDP-3830 comes standard with GPIB/IEEE 488.1 and USB 2.0 computer interfaces. Additional instrument flexibility is provided by trigger in and trigger out functions to control pulses and initiate corresponding measurements without a command program.
Precision Pulse Control for Laser Diodes and Quantum Cascade Lasers
The LDP-3830 was designed to provide safe and repeatable pulse current for laser diodes and quantum cascade lasers. The LDP-3830 is capable of delivering up to 5A peak current over a pulse width range of 25 ns to 1 µs with a maximum duty cycle of 5%. To achieve pulse widths of 25 ns with rise times less than 10 ns, the pulse circuitry is contained in the LPB-386 Pulse Board with all control functions being sent from the LDP-3830. For accurate monitoring of laser drive parameters, the LPB-386 Pulse Board has the ability to monitor the current via a switch located on the LPB-386.
For quantum cascade laser applications, the LDP-3830 can deliver up to 20V of compliance with highly repeatable pulse to pulse amplitude and pulse width.
Laser Protection
One of the most important features of the LDP-3830 is ILX Lightwave’s proven laser protection. Features include redundant current limits, output shorting relay, and transient suppression. During power up, the laser is protected from over current conditions by a slow start routine designed to ramp the current of the desired set point. In addition, the LDP-3830 monitors the AC power line and will immediately shut down the output current pulse if a failure is detected. These protection features all work in conjunction with all control modes of operation, providing worry free, fail safe control of your laser diode or quantum cascade laser.
Ease of Operation
Designed for ease of use and readability, the front panel features a large 7-segment LED display with integrated dot matrix display. Instrument controls are grouped by mode and function to allow for easy setup. The display allows for easy viewing of multiple parameters such as pulse output current, pulse repetition interval set point, duty cycle set point, and pulse width set point. Discrete function buttons allow for quick confi guration without a complex multiple menu system. A selection of instrument operating modes includes constant duty cycle, constant pulse repetition interval (PRI), and external trigger. During a system error, the dot matrix display provides easily readable errors to allow for quick
troubleshooting.
In constant duty cycle mode, the set duty cycle is maintained while adjusting pulse widths. In constant PRI mode, the set pulse interval is maintained while adjusting pulse width. In external trigger mode, the user sets the current and pulse width and the LDP-3830 will respond to an external TTL signal from a single pulse up to the maximum PRI.
To maintain system uptime, the LDP-3830 provides the ability for the user to upgrade the firmware without returning the instrument to ILX. To upgrade the firmware, the user needs a computer with a USB and internet access.
Store and Recall Settings
For multiple instrument test confi gurations, the LDP-3830 Precision Pulsed Laser Current Source offers a STORE and RECALL feature. The STORE function allows you to save all the front panel settings for any given instrument confi guration to a numbered bin. The RECALL function allows you to retrieve any of the stored configurations at any time through simple front panel button presses or remotely through the GPIB or USB interface. This saves time in instrument re-configuration for different manufacturing runs or R&D experiments.
Complete System Integration
Remote instrument operation is available on the LDP-3830 through an IEEE488.1 / GPIB interface or USB 2.0 interface. All instrument controls and functions are accessible through the interfaces for easy remote programming and control in automated test systems where repeatable and accurate test sequencing, measurements, and data handling are required. TTL level triggers are incorporated into the LDP-3830 to control output pulses and to initiate corresponding measurements from other instruments without a command program.
A comprehensive and easily confi gurable LabVIEW® instrumentation driver is available for free download from the Literature & Downloads tab on this page that will aid in development of system software.
Put or Expertise to Work
ILX Lightwave is a recognized world leader in Laser Diode Instrumentation and Test Systems. Our products are not only renowned for their reliability, quality, and value; they’re backed by industry leading after sales support.
For full product specifications, see the LDP-3830 Brochure .
| Output Current |
| Output Current Range |
0-5 (A) |
| Output Current Resolution |
10A |
| Output Current Accuracy |
±(0.05A + 1% of SP) (full scale) |
| Laser Output Compliance Voltage |
0-20 (V) |
| Current Limit |
| Range |
0-5.50 A |
| Resolution |
0.01 A |
| Accuracy |
± (0.05 + 1% of setpoint) A |
| Pulse Width Parameters |
| Programmable Pulse Width Range |
25 ns to 1 µs |
| Resolution |
1 ns |
| Accuracy |
± (0.02 + 1% of setpoint) ns |
| Repeatability |
± 15 ns |
| Rise/Fall Time |
<10 ns |
| Measurement Display |
| MD Output Current Range |
0-5 (A) |
For additional questions contact ILX Lightwave directly at 800-459-9459 or sales@ilxlightwave.com.
LDP-3830 Models
| | Model | Description | avail raw | Availability | price raw | Price | Qty. MULTI ADD |
|---|
|
LDP-3830 |
Pulsed Laser Diode Driver, 5 A, GPIB, USB, 120 VAC |
0 |
In Stock |
6595 |
$6,595.00 |
ADD |
|
LDP-3830-I |
Pulsed Laser Diode Driver, 5 A, GPIB, USB, 220 VAC |
3 |
3 Weeks |
6595 |
$6,595.00 |
ADD |
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