iflex-2000 405nm

Hi ,

I have laser iflex-2000 405nm,



http://www.google.pl/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved=0CC4QFjAA&url=http%3A%2F%2Fwww.qioptiq.com%2Fdownload%2FQioptiq_iFLEX2000_datasheet_Aug2011.pdf&ei=70Z-UqjEHJCSswbF84CAAg&usg=AFQjCNH2kgtSK03kvWYN74h2Atl1iX9Zlg&sig2=0dfQ0I-l99a82NVw6xkd0Q&bvm=bv.56146854,d.Yms

the controller(driver) is build in this head.All is needed to enable is power supply 5V and 12V. The datasheet of iflex-2000 is very poor, the electrical interface below

"Pins of RS232:

1. 5V ± 5%DC/3A (Temperature controller)
2. 12V ± 5% DC/0.5A (Laser driver)
3. Laser enable; 4-5V to enable, <1.2V to disable
4. Temperature OK signal, TTL logic level output (high = temperature locked)
5. External current control (0V fully on; 5V fully off)
6. 0V Temperature controller
7. 0V Laser driver
8. Diode operating current output; (Vop is scaled 10mV/mA laser diode current)
9. Monitor photodiode output (uncalibrated)


I have a little doubt how to power this unit, above mentioned electrical interface is not clear for me.

I understand that to pins 1 and 6 connect 5V
and to pins 2 and 7 connect 12V
but how to enable laser on??
4-5v connect to pin 3 respect to which pin ( or maybe to ground)?
which pins must be grounded
There is no information about GND

Enyone can give me advice how to enable this laser ? ?

I can offer money for somebody who help start the laser. Let me know on my priv.

This is a forum for open informations for everybody so every information should be free :beer:

So I have never used such a laser but the pinout and requirements are pretty clear to me.

You would need a 12V supply and a 5V supply with common ground.

"I understand that to pins 1 and 6 connect 5V
and to pins 2 and 7 connect 12V" + poles to 1 and 2

Thats right then simply a switch from + of your 5V supply to pin 3 to enable the laser.

pin 4 you only need if you want to meter the temperature if not leave it un connected

pin 5 you can enable current control over pin 8 if you don't know at which current the diode is run leave it and it will use a safe set current

8 pin current control thats is activated through a 5V signal on pin 5
leave it free

9 photodiode output it's not calibrated so not very useful if you don't calibrate it for just running the laser you don't have to use this pin

Thanks for explaination. I done everything acc. to Your sugestion.
Unfortunately laser didn't start something is wrong...

maybe next step should be cheking directly laser diode, but how to do this in 100% safe way?.

shokkunlasers said:

You would need a 12V supply and a 5V supply with common ground.

Click to expand...

I don't think they need to have common ground. Looks like pins 6 and 7 allow for different grounds.

marwaj said:

maybe next step should be cheking directly laser diode, but how to do this in 100% safe way?.

Click to expand...

Why directly? Why not check pin 8 on the interface?

Simplest option, to be clear, is:

12V on pin 2
5V on pins 1, 3 and 5
Ground on pins 6 and 7

I get information from Qioptiq that All the control and monitor signals of the laser interface are referenced to PIN 7 on the connector. This is the laser supply 0V.

I'm interpreting this information that this setup need two power sources without common ground:
#1. power supply with two outputs DC 12V and 5V with common ground
#2. power supply with output DC 5V 3A


I connected laser in this way:

12V on pin 2 referenced to PIN 7 -first power supply
5V on pin 3 referenced to PIN 7
pin 5 connected to PIN 7

5V on pin 1 referenced to PIN 6 - second power supply

Effect this same : laser didn't start,

Laser has two LED indicators:
POWER LED- after connect 12V on pin 2 -LED emit constant light
EMISSION LED -after connect rest - LED blinking(slow->fast->slow-> and so on..)
and that's all.

the blink code may mean some error. I don't know..

Cyparagon You suggest to check pin.8 - but if diode is broken what information I get from this pin?