Products Laser Electronics uniLDD

uniLDD series

Ultra-stable and high power laser diode drivers with internal TEC controller option

Laser diode drivers, also known as laser diode controllers, for pumping of diode pumped solid state lasers (DPSSL) as well as powering and beam modulation of direct diode lasers for vast variety of industrial, medical, scientific and military applications.

Download datasheet
uniLDD laser diode drivers.
uniLDD
Overview Specifications Configurations Performance Images Downloads
Overview

Features

  • Current stability: 0.1% pk to pk
  • Current range: from 10 A to 1200 A
  • Compliance voltage range: from 1 V to 600 V
  • Internal TEC option: one driver can contain up to 2 independently controlled TEC channels
  • Power density: up to 2.8 kW in 130×90×30 mm form factor
  • Analog and digital (CAN*, RS232) control interfaces

* For CAN communication at evaluation stage Ekspla’s CAN-USB adapter is required.

QCW uniLDD forced air cooled driver version

QCW uniLDD forced air cooled driver version.

Description

uniLDD is the product line of laser diode drivers, also known as laser diode controllers, for pumping of diode pumped solid state lasers (DPSSL) as well as powering and beam modulation of direct diode lasers for vast variety of industrial, medical, scientific and military applications.

Main specifications and compatibility with diodes

Our uniLDD laser diode drivers can power wide range of diodes (single emitters, bars, stacks, VCSELs, LEDs) in pulsed (QCW) and continuous (CW) operation modes. Laser diode controllers can supply currents from 10 A to 1200 A while maintaining 0.1% pk-pk current stability. Compliance voltages of uniLDD laser diode drivers vary in 1 V – 600 V range.

Internal TEC controller option

Additionally to powering of laser diodes our uniLDD drivers can simultaneous function as TEC controllers, also known as Peltier element temperature controllers. Each laser diode driver contains two output channels which can be utilized as two independent TEC controllers.

From prototyping to serial manufacturing

Highly customizable uniLDD laser diode driver’s design helps our engineers make sure that final product fully meets integrator’s requirements. Ekspla can swiftly shift from prototyping process to high volume manufacturing stage with ability to supply over 1000 laser diode controllers per year.

Specifications

ParameterValue 1) 2)Notes
OUTPUT, CW mode
Diode compliance voltage1 … 55 VUp to 95% of power stage supply voltage. Can be extended using voltage booster layout
Max current50 – 120 ACan be extended using parallel connection of several drivers
Current ripple0.1% pk-pkDC … 100 kHz bandwidth, in x0.5 … x1 of max current range
Current drift< 0.2%Cold start, 8 h period, after 5 min. warm up
OUTPUT, QCW (Pulse mode)
Diode compliance voltage1 … 80 VCan be extended using voltage booster layout. Custom solutions up to 600 V available upon request
Max pulse current160 – 360 ACan be extended using parallel connection of several drivers. Custom solutions up to 1200 A available upon request
Duty cycle≤ 20%1.0 %
Current pulse raise, typical range10 … 50 μs@ minimal connection cable inductance and sufficient power stage voltage
Max RMS current100 A80 A for diode compliance voltage > 28 V
Current pulse amplitude stability0.1% pk-pkIn x0.5…x1 of max current range
Current drift< 0.2%Cold start, 8 h period, after 5 min. warm up
OUTPUT, TEC control (if equipped)
Quantity of output channels1 or 2
Maximal output current25 A
Maximal output voltage25 V
INPUT
Supply voltage, power stage12… 90 VDC
Supply voltage, control stage12 … 30 VDC
PROTECTIONS
Current transient protectionShut-down
Open circuitShut-down
Over temperatureShut-down
Power voltage brownoutShut-down
InterlockShut-down
Physical characteristics
Assembly dimensions (L × W × H)190 × 68 × 55 mm
ENVIRONMENT
Operating temperature0 to 40°CDe-rate current at higher temperature
CoolingForced air or conductiveInstalled or external shared fan. Conductive cooling version available as option
ParameterValue 1) 2)Notes
  1. Specifications are subject to change without prior notice.
  2. Not all combinations of parameters are possible at the same time.

Configurations

ParameterValue
uniLDD-C-CW-30-100 1)
DescriptionDriver for CW mode operation (conductively cooled)
Operation modeCW
Maximum current to laser diode100 A
Maximum compliance voltage30 V
uniLDD-A-CW-25-75-1TEC
DescriptionDriver for CW mode operation and one stage bidirectional TEC control (air-cooled)
Operation modeCW-TEC
Maximum current to laser diode75 A
Maximum compliance voltage25 V
Maximum current to TEC25 A
Maximum TEC voltage25 V
uniLDD-A-CW-25-100 1)
DescriptionDriver for CW mode operation (air-cooled)
Operation modeCW
Maximum current to laser diode100 A
Maximum compliance voltage25 V
uniLDD-A-QCW-80-360
DescriptionDriver for QCW mode operation (air-cooled)
Operation modeQCW
Maximum current to laser diode360 A
Maximum compliance voltage80 V
Hardware options rated30, 60, 100 V
uniLDD-A-QCW-80-270-1TEC
DescriptionDriver for QCW mode operation and one channel bidirectional TEC control (air-cooled)
Operation modeQCW-TEC
Maximum current to laser diode270 A
Maximum compliance voltage80 V
Hardware options rated30, 60, 100 V
uniLDD-A-QCW-80-180-2TEC
DescriptionDriver for QCW mode operation and two channels bidirectional TEC control (air-cooled)
Operation modeQCW-TEC
Maximum current to laser diode180 A
Maximum compliance voltage80 V
Hardware options rated30, 60, 100 V
ParameterValue
  1. Voltage extension possible by customization and current reduction.

Performance

uniLDD ripple current.

12 V and 24 V DC power, 2 V junction + 10 MΩ series R load.

uniLDD current error.

12 V and 24 V DC power, 2 V junction + 10 MΩ series R load.

uniLDD current drift.

From cold start for different currents.

uniLDD efficiency.

12 V and 24 V DC power, 2 V junction + 10 MΩ series R load.

Images

CW uniLDD conductively cooled driver version.

CW uniLDD air cooled driver version.

QCW uniLDD forced air cooled driver version.

Downloads

uniLDD Laser Diode Drivers

Product datasheet.

410 KB,  rev. 240908.

Laser Electronics

Product catalog.

3.3 MB,  rev. 250403.

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