Wnated - Laser Power Sensor Calibration
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Thu Feb 01 2007, 12:50AM
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Registered Member #56
Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2445
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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.
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