FS/FT Coherent Pocket Laser Meter

[yobresal]

I have this little guy here for sale or trade. I have used it a lot and so it has a few laser burns to the plastic casing but it is perfectly operational. I have the original leather case for it as well. I am looking to get $300 for it. I will also be looking into trades. Thanks

[shrad]

hi,

I don't want to be rude, especially being a "new" member, but isn't this a bit close of the original price from coherent?

[yobresal]

I am not sure what they are going for now. maybe someone can chime in here with a quote on those. I paid a little over $500 when I bought it a year and a half ago.

[daedal]

I am not sure what they are going for now. maybe someone can chime in here with a quote on those. I paid a little over $500 when I bought it a year and a half ago.

That meter is $395 from Coherent... Looks like it didn't change since you bought it

--DDL

[yobresal]

Thanks DDL. I am not really in a hurry to get rid of it. Maybe I will just buy another. The thing is this meter is not accurate for 405nm and I have been dealing with that wavelength a lot lately. I want to buy another meter so I can measure that wavelength. I sold a "150mW" "405nm" laser pointer to Craig at CandlePower and it turned out when he tested the unit that is is a 273mW 412nm laser. Had I a proper meter for that wavelength I would have held on to the little bugger. Maybe even harvested the diode and incorporated it into a lab style module for someone to use in a projector or something more usefull.

[shrad]

with such low wavelengths, this will be the case of many powermeters... be sure to double check the specs as sensors such as thermal ones don't always mention that they are, in fact, wavelength dependant at lower wavelengths (depending on coating, and broadband coating are often 400~2000nm but beginning of the range may be somewhat tricky)

[lasersbee]

with such low wavelengths, this will be the case of many powermeters... be sure to double check the specs as sensors such as thermal ones don't always mention that they are, in fact, wavelength dependant at lower wavelengths (depending on coating, and broadband coating are often 400~2000nm but beginning of the range may be somewhat tricky)

Sorry to disagree... but....

The LaserBee I + thermopile has shown to be quite accurate from about
300nm and to about 1200nm... It has no problems reading the 405nm
Blu-Ray wavelengths....

Jerry

[shrad]

then you have found a nice coating

older "low cost" coatings (like from lower end powermeters) might have problems, though

I have to ask at the lab here if they know how to find some nice coatings too I have 5 spare 10mm*6mm mini peltier coolers, gold plated (easy to solder any thermal compensation device... I think I'll scrap some 2mm gold around the center and solder 0805 0r resistors all around, current driven...)

[allthatwhichis]

I sold a "150mW" "405nm" laser pointer to Craig at CandlePower and it turned out when he tested the unit that is is a 273mW 412nm laser. Had I a proper meter for that wavelength I would have held on to the little bugger. Maybe even harvested the diode and incorporated it into a lab style module for someone to use in a projector or something more usefull.

DOH!!! At least it made it to the "Museum". Should have a long life ahead of it.