ophir meter head

**badger1666** · 12-03-2011, 14:00

Looking for a ophir power meter head.
The one you can use on a dmm to read laser power
Would prefer a UK seller as I don't have PayPal ' but may be able to ask a friend that does
Or can do bank transfer or Google checkout

Would buy one from eBay but don't know what to model to get? Could some one let me know

**MarioMaster** · 12-03-2011, 18:18

I just checked ebay for any items under "Ophir", there aren't any listed of the type that you want unless you want to pay $640 for one of Lasersbee's premade meters. Seems even the resellers have run out of piles now.

The ones you want are the 20C-A-1-Y heads.

**lasersbee** · 12-05-2011, 06:45

Those heads have become very rare...
I found this one....
http://www.ebay.ca/itm/Ophir-OEM-Las...item5addb2b881

It has a calibrated output of 0.1V/Watt. All that you would need
is an Op Amp circuit with a gain of 10 to get 1V/W..

Jerry

**laserwinkel** · 12-05-2011, 08:28

i have 5 of these on the way but they are stuck at the customs and they are really slow these days

these = 20C-A-1-Y heads

**m0f** · 12-05-2011, 08:37

Absorber is optimized for CO2 (10.6um) and Er:YAG (2.94um) lasers I notice in the ebay ones posted. Any guesses as to how that would affect measurement delay and accuracy ?

**badger1666** · 12-05-2011, 09:53

thanks for the windup , do you wana sell me one ?

@ jerry do you still think it will be ok as its for co2 ?
i have the opamp that i am using in my homade power meter(the one that was on lpf , i used a 30mm tec with mine) would that be good enough?

thanks

Originally Posted by laserwinkel

i have 5 of these on the way but they are stuck at the customs and they are really slow these days

these = 20C-A-1-Y heads

**lasersbee** · 01-25-2012, 11:18

Sorry for the late reply....
The OPHIR 20C heads can handle 4Watts without additional cooling.
When properly cooled they will handle 20 watts.

Jerry

**dera236** · 10-01-2012, 02:24

Looking for OPHIR 20C also! So anyone who has tracked some down i would be 1ntrested.

**n2stuff** · 10-01-2012, 20:50

Originally Posted by dera236

Looking for OPHIR 20C also! So anyone who has tracked some down i would be 1ntrested.

Here you go.
http://www.ebay.com/itm/OPHIR-Laser-...item20c73e5c0f

**LaNeK779** · 10-02-2012, 07:19

Maybe we could run a group buy on this one?????

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