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Thread: 445nm specific PBS cube GB

  1. #101
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    Apr 2010
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    Grand Rapids, Mi
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    Did Eric receive this from chad?
    leading in trailing technology

  2. #102
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    Feb 2011
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    No, he did not. Does anyone else have these cubes?

  3. #103
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    Buffo has one, I'll ask him if he can forward it now
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  4. #104
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    Jan 2006
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    Charleston, SC
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    I just sent a PM to Dave and Planters....

    Eric: I can easily forward my cube to you for testing. Just need your address.

    Adam

  5. #105
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    Jun 2010
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    Somerset, KY
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    Are we any closer on this being tested or having results of some tests?

  6. #106
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    I performed the testing by using a single 445nm diode and rotating the cube to measure the throughput for S and P polarizations. Transmission is 97% for P and reflection is 96% for S. Both of these efficiencies are independent of input angle to approximately +/- 12 degrees. I am now "cooking" the cube by focusing the diode with a 200mm FL lens to approximately 1mm x 0.2mm on the 45 degree interface for a fluence of 1KW/cm^2. This cube is at least as good as any that I have purchased. The last test will be to look at the far field spot size with and without the cube to confirm the effect on wavefront. But, at least within 10-20cm there does not appear to be any deterioration.

  7. #107
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    Quote Originally Posted by planters View Post
    I performed the testing by using a single 445nm diode and rotating the cube to measure the throughput for S and P polarizations. Transmission is 97% for P and reflection is 96% for S. Both of these efficiencies are independent of input angle to approximately +/- 12 degrees. I am now "cooking" the cube by focusing the diode with a 200mm FL lens to approximately 1mm x 0.2mm on the 45 degree interface for a fluence of 1KW/cm^2. This cube is at least as good as any that I have purchased. The last test will be to look at the far field spot size with and without the cube to confirm the effect on wavefront. But, at least within 10-20cm there does not appear to be any deterioration.
    Any possibility you could see how it acts at 405nm either transmission or reflection. I Want to mix in another line with it.
    leading in trailing technology

  8. #108
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    New Hampshire
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    I just completed the long term high intensity run @ 1Kw/cm^2 x 12 hours with no degradation in performance. The spot size in the far field is unaltered by passing through the cube, but there might be a very slight increase in the scatter around the spot. This scatter is not measurable and is not any worse when compared to my $120 Lambda Research cube.

  9. #109
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    Nov 2005
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    Melbourne, Australia
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    Thanks Eric

    Now, lets get this GB started again.

    Ill get some PM's sent to interested people later today
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  10. #110
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    Nov 2005
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    Should add update here.

    Cubes have been ordered, a little wait tho, ~ 5 weeks

    [edit] Ill get some payment details out to those interested over the weekend
    Last edited by dave; 02-27-2014 at 03:50.
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