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I picked up one of the FieldBest optical power meters on eBay and also have a LaserBee and old Newport 818P-110-19 that's out of calibration. The FieldBest seems to work pretty well. I tried testing 2 532nm lasers I have, a "Laser 301" 532nm laser from eBay and a Alcon laser which is supposed...

I picked up an old Newport 841-P-USB with a 818P-110-19 thermopile head. Newport don't seem to supply software for this unit any more (the legacy software doesn't work). But I can communicate with it over serial. I'm now trying to figure out how out of calibration it is. It was last calibrated...

Re: B&Wtech 473nm unit / Spectrometer Mods & Info I've seen it, but it's not much use as the documentation states: "For RS232 Devices, contact B&W Tek, Inc. with your model spectrometer and serial number and reference RS232 Command Set, (Doc #4000000008)." So it appears to be...

Re: B&Wtech 473nm unit / Spectrometer Mods & Info Yes, I'm sucessfully using it with an RS232 to USB converter. However, this does not work with BWSpec. BWSpec appears to require a different USB interface which is not present on these modules design for OEM applications (it does not appear to...

Re: B&Wtech 473nm unit / Spectrometer Mods & Info I picked up one of these units on eBay (the 17USD ones without the laser) and have been playing with it. The filter baffle removal info presented here was very useful. I also have access to a copy of BWSpec. However, it seems that it wont work...

I've seen a few threads on here discussing lasers with a spot size in the micron range, but I'm still at a bit of a loss as to what I would need to buy/build. Can anyone offer any tips/useful links? I've recently picked up a couple of XY and XYZ stages which claim to have micron resolution...