<1W Krypton measured with Kenometer Pro

• Dec 29, 2011

• #1

romogracie

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This is the Krypton that I recently bought from SRESAL and Cyparagon.

Definitely not a 1W laser, but I suppose I got a pretty good deal for $500.

First LPM test taken at 70 degrees...

Second test taken after a 5 minute cool down period...

 

Last edited: Dec 30, 2011

• Dec 29, 2011

• #2

eytyxhs

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This is Super Unstable!

My 300mW krypton is Stable at 400mW

 

Last edited: Dec 29, 2011

• Dec 29, 2011

• #3

Flaminpyro

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How long had the laser been on when you took the first reading ?

 

• Dec 29, 2011

• #4

romogracie

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eytyxhs said:

This is Super Unstable!

Click to expand...

Yeah, these graphs look like a mountain range.

I'm guessing stability is impossible at these high powers unless the laser has active cooling built in.

Flaminpyro said:

How long had the laser been on when you took the first reading ?

Click to expand...

Only a few seconds.

One more LPM test...

 

Last edited: Jan 31, 2012

• Dec 31, 2011

• #5

sopark4000

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Jesus those things are unstable. Did you use an IR filter for this test?

EDIT-Obviously WL claims that the krapton is IR filtered but every test has shown otherwise so I'm just curious how much IR this one is putting out. At your average of 800mW chances are your getting a little under 100mW of IR. Either way for $500 even if it's only 700mW of 532nm thats still a good deal.

 

Last edited: Dec 31, 2011

• Dec 31, 2011

• #6

Cyparagon

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I have tested IR to be around 20mW.

 

• Dec 31, 2011

• #7

romogracie

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Cyparagon said:

I have tested IR to be around 20mW.

Click to expand...

I got the same result using filmstrip negatives in front of the LPM sensor.

 

• Dec 31, 2011

• #8

sopark4000

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Cyparagon said:

I have tested IR to be around 20mW.

Click to expand...

Wow thats surprising. I guess a lot of kryptons just have a lot of leakage around the filter and yours happens to be working well (sort of). Well like I said $500 for this laser is a steal that even I would jump on. $1,000 on the other hand is not.