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Newport optical power meter

Petrovski

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Today I was discussing my new laser hobby with some colleagues at work. The conversation came to the point of measuring the laser's power with metering equipment. A colleague mentioned a certain department had an optical power meter laying around they barely use. I immediately checked it out, it turned out be a perfect meter for the laser hobbyist:

Newport handheld Optical Power Meter 840-C with 818-ST detector
- will measure wavelengths from 400nm to 1100nm
- wavelength selection in 1 nm steps
- power range from 100pW to 2W
- auto ranging
- attenuator present (slide function)
- calibrated (last calibration 2-apr-2008)

http://www.newport.com/store/genproduct.aspx?id=139600&lang=1033&Section=Spec

As my employer allows employees to use equipment at home as long as it's properly logged, I took it home for the weekend in order to test my 10mw ebayser and my 5mw Optotronics. Results are below, and I might say measuring lasers for fun is nice work.

Measurement parameters
- 2 minute warmup time
- 10cm space between laser aperture and detector
- meter set to 532nm
- attenuator out (not used)

10mw ebayser:


5mw Opto:


As you can see, the ebayser is around 8mw and the Opto around a stunning 20mw! That's about 4 times as much power as specified. Jack, can you confirm this?  :cool:

Another good thing about this meter is that it can measure IR. So if (more likely 'when') I'm getting myself a green RPL I can measure IR leakage.  ;)
 

daguin

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Nice discovery (and new toy)

It's nice to "know" what you've got, isn't it?

Your test also shows the value of dealing with one of the reputable laser dealers . .

eBayser = 20% under

Optotronics = 300% over

That's probably not the right way to say that (Did I mention I hate math?), but the meaning is clear.

You pays your money, you takes your chances . . . . . but there are ways to increase your chances of getting a "good one"

Peace,
dave
 

Dr_Evil

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That 5mW from Jack is really putting out 20?! My old low power green is being modified so I odered the optics kit that includes a 5mW pointer. I need a low power one for driving pets insane and messing around with optics without needing safety glasses.

VillageIdiot said:
HOW MUCH IS IT FOO

I'm not giving away my personal details just to get a quote! WTF?
Click on the link he posted. Then click on product description and pricing will be listed there. Or you can click on the link I posted in this post. I'll tell you this right now. It ain't cheap. You could buy a nice blue RPL for the same cost.

http://www.newport.com/store/genproduct.aspx?id=139600&lang=1033&Section=Pricing

It cost $1176 alone or $1417 with test data and certificate.
 

Petrovski

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Dr. Evil said:
That 5mW from Jack is really putting out 20?! My old low power green is being modified so I odered the optics kit that includes a 5mW pointer. I need a low power one for driving pets insane and messing around with optics without needing safety glasses.
Yeah looks like it. Actually I bought this 5mw Opto for the same reasons: to play around with it without the need for goggles. But I'm not complaining. :cool:

@ daguin: yeah it's indeed nice to know the actual power output of your lasers. Currently I only have 2 greenies, but that collection is bound to be expanded. ;)
 
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Get a true 30. If it sucks it won't be much of a loss. Mine work(ed) fine until I decided to tinker with it...
 

Dr_Evil

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Petrovski said:
I was more thinking about a nice green PPL/RPL...  [smiley=evil.gif]
Go with the RPL. You know you want too. I had a PPL 125 that had some issues. I sent it back along with some more money for a RPL 200. Jack was really nice though and sent me a RPL 225 instead.
 

Dr_Evil

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Petrovski said:
[quote author=Dr. Evil link=1210960300/0#4 date=1211011376]That 5mW from Jack is really putting out 20?! My old low power green is being modified so I odered the optics kit that includes a 5mW pointer. I need a low power one for driving pets insane and messing around with optics without needing safety glasses.
Yeah looks like it. Actually I bought this 5mw Opto for the same reasons: to play around with it without the need for goggles. But I'm not complaining.  :cool:

@ daguin: yeah it's indeed nice to know the actual power output of your lasers. Currently I only have 2 greenies, but that collection is bound to be expanded.  ;)[/quote]

I got my "5"mW green from Jack today. I have a feeling it is running about 20mW also. The green Leadlight listed in my sig couldn't even smoke stuff using a magnifying glass. This new one smokes stuff using a magnifying glass. It also seems brighter. I would compare them but drlava has the leadlight doing a mod to it. [smiley=grin.gif]
 

Dr_Evil

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I know this is old but it is an update on my Optotronics "5"mW. I checked it with the Laserbee 1 that arrived today. It put out 23mW peak with used batteries. :eek:
 
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I keep getting "Sorry, no results matched your search. You can try to narrow down your search or you can search for products through our category search".
from both links..
 

lasersbee

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Dr. Evil said:
I know this is old but it is an update on my Optotronics "5"mW. I checked it with the Laserbee 1 that arrived today. It put out 23mW peak with used batteries. :eek:
Hey Dr. Evil,
 glad to see you received your LaserBee I + Thermopile....
I see your using it right away... ;)

I just read this Thread about "Petrovski" using a recently calibrated Newport LPM and getting around
20mW running output from his  "Optotronics 5mW" laser.
I'm curious to know... what your reading was after the 23mW peak... :-?

Jerry
 




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