Wnated - Laser Power Sensor Calibration

..., Thu Feb 01 2007, 12:50AM

I have a laser power sensor 'smart head' that gives out a voltage proportional to the input laser power, but I don't know what the constant w/v value is

So I was wondering if any of you have access to a power meter you could use to calibrate it? The head is .5-50w... So I want at least 1-2w of power for the reference at ~1um (diode or yag, it is supposed to be pretty flat over wavelengths)

Since I am guessing that none of you have access to a laser like that, I would probably end up sending you one of my fiber coupled ~2w 808nm laser with internal power sensor to you. You hook up an ohmeter and a ammeter to the temp/power sensors, give the TEC enough power to get the temp thermistor to read 10k, then upp the laser power to give me a constant of ma photodiode current/output power. Then I could use that to calibrate my head.

Any takers? My next best chance would be to beg Sam Goldwasser to do it, but I am guessing it will cost at least $50 to get him to do it.