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Products Electronics Laser Diode Driver CW/QCW “Only LDD”
Laser Diode Driver CW/QCW Only LDD

All-in-one solution for direct laser diode applications. Incorporates laser diode driver, aiming beam driver, temperature controller (fan/water pump control) as well as LCD and USB control interfaces. Microcontroller based cost effective CW/QCW laser diode driver for single-emitter laser diodes. Short current pulse rise/fall time durations in QCW mode.

Pricing

Model Price, 1-2 units Price, 3-9 units Price, 10 units and more
Only LDD EUR 1190 EUR 960 Contact us for qoutation
Only OEM EUR 800 EUR 610 Contact us for qoutation

Contents:

 

Description

‘Only’ laser diode driver is aimed at control of pulsed laser diodes and low-to-middle power DPSS lasers with cooling of the laser diode based on air or water flow instead of termo-electric Peltier elements. The output power is sufficient to drive single emitter laser diodes, delivering up to 25 W of optical power.

Only LDD is the medium power CW or pulsed mode laser diode driver.  Microprocessor based unit incorporates on-board LCD user interface and USB 2.0 interface for convenient and versatile control of the diode or DPSS laser. Easy  to setup requirements allow easy integration of the laser diode driver in various applications, including medical workstations, industrial laser diode based systems and portable laser applications. also include current measurement output for user or software feedback.

Features

  • QCW and CW operation modes
  • Integrated quartz based pulse generator
  • Fan/water pump controller
  • Standard mini USB 2.0 interface for remote control
  • Low current aiming beam laser diode driver
  • Interlock channel on D-SUB37 for connection of key e. stop or power on switch
  • Gate function for pulse trains generation or control of laser diode from external pulse generator
  • Two NTC inputs; the second input can be programmed to support external control pedal (for medical applications)
  • Two lines text LCD screen
  • 1 year full service warranty
Specifications
Parameter  Value
Max. laser diode current (CW)  12 Amps
Max. laser diode current (QCW)  12 Amps
Current setpoint resolution  10 mAmps
Max. output voltage  6 V
Aiming beam current  250 mAmps
Aiming beam voltage  6 V
FAN (water pump) output voltage  same as +VCC
Temperature stability  0.5 C
Temperature setpoint resolution  0.1 C
Repetition rate in QCW operation  20 Hz - 500 kHz
Pulse width  1 μs – 5 ms
On-board user interface  2 row text LCD
Power supply  input 100-240 VAC; output 7.5 VDC 15Amps
Input DC voltage (+VCC)  +7.5 V
Total output power  up to 72 W
Dimensions (controller, LxWxH)  136 x 118 x 44 mm
Dimensions (power supply)  168 x 70 x 40 mm

Applications

Only LDD laser diode driver is perfectly suited for direct laser diode applications:

  • medical laser  stations,
  • material processing;
  • high energy but low average power DPSS lasers.

The most straightforward application is medical laser for dental treatment – that’s what for the laser diode driver was designed as all-in-one solution.

Recommended Laser Diode Drivers and Diode Lasers

  • LIMO LPD series
  • Lumics LU09xxFyyy
  • Lumics LU1064Fyyy
  • Lumics LU0808Fyyy
  • Lumics LU0980D100-D
  • Lumics LU0808Dyyy-D
  • Lumics LU1064Dyyy-D
  • Oclaro BMU10A-9xx-01/02-R
  • Oclaro BMU25-9xx-01/02-R
  • Oclaro SES11-9xx-01
  • Jenoptik JDL-BAE-200-808-TM-8-4.0
  • Jenoptik JOLD-10-BAFCM-12
  • Jenoptik JOLD-12-BAFCM-12

What’s in the Box?

  • Laser diode driver ONLY LDD
  • 113 W Power supply (100-240V) (for higher power applications please write to sales@wophotonics.com)
  • D-SUB 37 connector with quick connection (special adapter cables are available on request)
  • USB cable
  • USB stick (PC control software, user manual and Silabs chip driver)
  • Silabs chip driver could be downloaded from here.

LD output  current timing specifications

 

All measurements at 10Amps output current.

 

240 4d235edfdac30 635x429 Laser Diode Driver CW/QCW Only LDD

Figure 1. 1 ms pulse shape at 2 V laser diode; input voltage 7.5 V.

240 4d235ee8953f3 636x430 Laser Diode Driver CW/QCW Only LDD

Figure 2. 2 us pulse shape at 2 V laser diode; input voltage 7.5 V.

240 4d235f0b1c0c2 637x428 Laser Diode Driver CW/QCW Only LDD

Figure 5. 4 us pulse shape at 6 V laser diode; input voltage 7.5 V.

 

Results might depend on laser diode characteristics, wiring and power supply response to load increment.

 


Product is engineered and assembled in Lithuania (European Union).

Integrators and OEMs are welcome to request a unit for testing. Please write to sales@wophotonics.com .