High Power Laser Diode Drivers

LDX-36000 Series High Power Laser Diode Drivers are designed specifically for controlling and testing high power laser diodes. The LDX-36000 Series are CW/QCW laser diode drivers with current ranges from 40A to 220A QCW and 18A to 125A CW with maximum compliance voltages from 12V to 35V. This series offers multiple levels of laser diode protection, forward voltage measurement, and photodiode measurements.

Output current to 220 A QCW and 125 A CW
Compliance voltage up to 35 V
Multiple proven high power laser diode protection features
Hard pulse capability with pulse widths to 2 seconds and duty cycle to 90%
Peak and CW forward voltage and photodiode measurement
TTL trigger input and output with adjustable delay

See All Features

Description	Compatibility	Avail.	Price
LDX-36010-12 High Power Laser Diode DriversLaser Diode Driver, High Power CW/QCW, 10A, 12V, GPIB [Discontinued]	UNIVERSAL	Discontinued
LDX-36010-35 High Power Laser Diode DriversLaser Diode Driver, High Power CW/QCW, 10A, 35V, GPIB [Discontinued]	UNIVERSAL	Discontinued
LDX-36018-35 High Power Laser Diode DriversLaser Diode Driver, High Power CW/QCW, 18A, 35V, GPIB (RoHS and / or CE Pending)	UNIVERSAL		$7,590
LDX-36025-12 High Power Laser Diode DriversLaser Diode Driver, High Power CW/QCW, 25A, 12V, GPIB (RoHS and / or CE Pending)	UNIVERSAL		$6,255
LDX-36040-30 High Power Laser Diode DriversLaser Diode Driver, High Power CW/QCW, 40A, 30V, GPIB (RoHS and / or CE Pending)	UNIVERSAL		$9,100
LDX-36050-12 High Power Laser Diode DriversLaser Diode Driver, High Power CW/QCW, 50A, 12V, GPIB (RoHS and / or CE Pending)	UNIVERSAL		$7,575
LDX-36070-30 High Power Laser Diode DriversLaser Diode Driver, High Power CW/QCW, 70A, 30V, GPIB (RoHS and / or CE Pending)	UNIVERSAL		$9,650
LDX-36085-12 High Power Laser Diode DriversLaser Diode Driver, High Power CW/QCW, 85A, 12V, GPIB [Discontinued]	UNIVERSAL	Discontinued
LDX-36125-12 High Power Laser Diode DriversLaser Diode Driver, High Power CW/QCW, 125A, 12V, GPIB [Discontinued]	UNIVERSAL	Discontinued
LDX-36125-24 High Power Laser Diode DriversLaser Diode Driver, High Power CW/QCW, 125A, 24V, GPIB (RoHS and / or CE Pending)	UNIVERSAL		$11,980

Features

High Power Precision Laser Diode Testing

Each LDX-36000 Series Laser Diode Driver was designed as a current source specifically for high power laser diodes. Ideal for R&D or manufacturing testing, precision low noise current control with set point accuracy of 0.1% of reading is delivered to the lasers, with four-wire voltage measurement and a photodiode monitor with adjustable reverse bias for CW and QCW LIV testing, laser qualification testing, or pulse testing.

Precision Pulse Control for High Power Laser Testing

The LDX-36000 Series offer several QCW operating modes delivering clean pulses with low overshoot and fast rise and fall times. Digital control of pulse width, duty cycle and frequency provide quick and easy control of pulse parameters for maximum flexibility in varying test applications. The pulsed output can be generated in one of three modes; internal pulse, hard pulse, and triggered pulse. If the LDX-36000 is being used in diode-pumped solid state laser and amplifier testing, programmable input and output trigger delays allow for optimizing Q-switch timing and energy extraction without the need for any external delay generators.

Choice of Laser Current Control Modes

Each LDX-36000 can be operated at full scale current and voltage in CW or QCW mode saving time and reducing cost of test by eliminating multiple instruments and test set-ups. Conduct CW L-I-V testing and pulse testing of high power laser diodes all at the same test station, without moving the laser or changing the output cable. With the 36000’s there is no need for another QCW instrument, simply change operating modes from the front panel or through the GPIB interface, set up the test parameters and start testing quickly in either mode. In QCW mode, the pulse output can be generated either internally with programmable pulse width, duty cycle and frequency parameters or through an external pulse trigger. For some applications, long pulse widths are required during testing. All 36000 models offer a "hard" pulse mode where the pulse width can be adjusted from 1 ms to 2 seconds with a duty cycle up to 90%. Additionally, a unique power display mode allows laser diode power to be set based on programmable slope efficiency and threshold current parameters.

Setting the Standard in Laser Diode Protection

Laser diodes are extremely sensitive to electro-static discharge, excessive current levels, current spikes, or transients from power surges or other laboratory equipment. One of the most important features we have implemented into each instrument is the ILX Lightwave proven laser diode protection standards. These standards have led to advanced protection features such as current and voltage limits, a slow-start ramping technique, floating outputs, fast error detection, and immunity to operational and power line transients. Careful attention to design has resulted in minimal overshoot in QCW mode or while rapidly stepping current in CW mode at any output current level. In case of a device failure with multiple devices connected in series, low overshoot and closed-loop power supply control ensure the safety of the remaining devices. A temperature monitor provides additional protection with a programmable temperature limit which disables the current source output in a limit condition. For more information about these protection features, please see our “Protecting Your Laser Diode" application note.

Automate High Power Laser Testing

Remote instrument operation is available on all of the LDX-36000 Series High Power Drivers through an IEEE488/GPIB interface. All instrument controls and functions are accessible through the interface for easy remote programming and control in automated test systems where repeatable and accurate test sequencing, measurements, and data handling are required. Whether the application is data intensive L-I-V testing, pulsed control for thermal characterization, or R&D evaluations, remote operation of the LDX-36000’s saves time and ensures systematic data collection and instrument operation.

Precision L-I-V Testing

Each LDX-36000 Series Laser Diode Driver was developed specifically for precision L-I-V testing of high power laser diodes with 0.1% set point accuracy, low noise and precision forward voltage measurement capability in CW or QCW pulsed modes. Additionally, the instrument can perform power measurements through an independent photo-diode input calibrated with a user-programmable responsivity. An adjustable 0 to -15V reverse bias ensures linear measurements and fast conversion speed. Accurate forward voltage measurements even with high current and long cable lengths are accomplished real time through a four wire measurement system. Reduce total system cost with these high current drivers; there is no need for separate pulsed sources, voltage measuring instruments, or low current measuring instruments for high power L-I-V. testing.

Ease of Operation

Designed for ease of use and readability, the front panel features dual 7-segment LED displays with instrument controls grouped by mode and function. The dual display lets you view laser parameters simultaneously with the bright 7-segment LED display highly visible from a distance in darkened labs. Parameters such as output current setpoint, current and voltage limits and calibration constants are easily selected and adjusted with the rotary digital encoder. Each display is easily configured to indicate laser parameters such as current, voltage, power, and temperature with discrete control push buttons located below each display. System errors such as open circuits and current or voltage limits are indicated with discrete LED’s with an error code indicated on the appropriate seven-segment LED display.

Save and Recall Instrument Settings

For multiple instrument test configurations, the LDX-36000 Series Laser Diode Drivers offer a SAVE and RECALL feature. The SAVE function allows you to store all the front panel settings for any given instrument configuration to a numbered bin. The RECALL function allows you to retrieve any of the saved configurations at any time through simple front panel button presses or remotely through the GPIB interface. This saves time in instrument re-configuration for different manufacturing runs or R&D experiments.

Accessories

High Power Mounts

Description	Compatibility	Price
764H-061 Laser Diode Mount, CS Bar, 61 W High Power, Temp Controlled	UNIVERSAL	$2,120
764H-110 Laser Diode Mount, CS Bar, High Power, Temp Controlled	UNIVERSAL	$2,545
LDM-4409 Laser Diode Mount, C-Mount, High Power, Temp Controlled	UNIVERSAL	$1,570

Driver Cables

Description	Compatibility	Price
CC308H Cable, Laser Driver to Mount, 20 Amp, 9W4 Male to 7W2 Male	UNIVERSAL	$240
CC320 Cable, Laser Driver to Mount, 40 Amp, 9W4 Male to 7W2 Male	UNIVERSAL	$310
CC325 Cable, Laser Diode Driver, 40 Amp, 9W4 Male to Ring Lug	UNIVERSAL	$240
CC340 Cable, Laser Diode Driver, 40 Amp, 9W4 Male to Copper/Crown	UNIVERSAL	$555
CC370 Cable, Laser Diode Driver, 70 Amp, 9W4 Male to Ring Lug	UNIVERSAL	$210
CC390 Cable, Laser Diode Driver, 150 Amp, Crown to Copper/Crown	UNIVERSAL	$640
CC395 Cable, Laser Diode Driver, 150 Amp, Crown to Copper/Crown, Extra Long	UNIVERSAL	$745

High Power Sensors and Meters

Description	Compatibility	Price
1919-R Optical Power Meter, Handheld, High Performance	UNIVERSAL	$1,901
1936-R Optical Power Meter, Benchtop, Single Channel, Power and Energy, RoHS	UNIVERSAL	$4,253
919P-003-10 Thermopile Sensor, 3 W, 10 mm, 0.19-11 µm	UNIVERSAL	$1,452
919P-040-50 Thermopile Sensor, 35 W CW, 50 mm, 0.19-11 µm	UNIVERSAL	$1,796
919P-050-18HP Thermopile Sensor, High Peak Power, 50 W, 17.5 mm, 0.24-2.2 µm	UNIVERSAL	$1,934
919P-150-26 Thermopile Sensor, 150 W, 26 mm, 0.19-11 µm, Fan Cooled	UNIVERSAL	$1,585
919P-250-35 Thermopile Sensor, 250 W, 35 mm, 0.19-11 µm, Fan Cooled	UNIVERSAL	$2,050