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Thread: 1/2 wave plates are ready to go

  1. #11
    Join Date
    Mar 2009
    Location
    Marseille, France
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    48

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    Hi dave

    interested by 1 waveplate for 532nm and one for 640nm if coatings are designed for each wavelengh.
    and depending size / Round or square
    In fact, I'll need of 10mmx10mm square (H Polar) before PBS and telescope for my 16x red diode laser project.

    Thanks

    Olivier
    Last edited by olive13; 12-29-2010 at 03:55.

  2. #12
    Join Date
    Jan 2006
    Location
    Switzerland
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    This is great news for holographers, as waveplates for 445nm are very (!) hard to get. Waveplates in combination with a PBS are the very best way to split a beam with a continuously variable intensity ratio. They are a must for any serious holographer.

    So mark me down for two 660nm and two 445nm - assuming that they are AR coated both faces, ok?

    I got a few 532nm to spare/exchange, but I guess no one would have 445nm's to spare.

  3. #13
    Join Date
    Jun 2010
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    Australia
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    Hi Dave, do you mind showing me a diagram of how you would use these with say 6 x diodes? I am trying to get the whole thing in my head.
    This space for rent.

  4. #14
    Join Date
    Aug 2008
    Location
    the hills
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    I'm in for 1 ea, 445 and 660.

  5. #15
    Join Date
    Jan 2010
    Location
    Uppsala, Sweden
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    72

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    Great price, Im in for a 660 plate! Any more specific details on these?

  6. #16
    Join Date
    Nov 2005
    Location
    Melbourne, Australia
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    3,702

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    Quote Originally Posted by RedlumX View Post
    This is great news for holographers, as waveplates for 445nm are very (!) hard to get. Waveplates in combination with a PBS are the very best way to split a beam with a continuously variable intensity ratio. They are a must for any serious holographer.

    So mark me down for two 660nm and two 445nm - assuming that they are AR coated both faces, ok?

    I got a few 532nm to spare/exchange, but I guess no one would have 445nm's to spare.
    Here are the specs - I should have posted them in the first post!

    Material: Quartz-Crystal
    Dia.: 12.50mm
    Thickness: 0.5mm
    Retardation:1/2 Lambda or Type: 1/2
    Surface quality: 20/10
    Parallelism: 1 sec
    Retardation-tolerance lambda/300
    Transmitted wavefront disortion: Lambda/8
    BBAR: 430nm-670nm R<0.5%, 445nm, 532nm

    Ill double check and confirm AR coating on both sides
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  7. #17
    Join Date
    Oct 2010
    Location
    Athens, Greece
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    Quote Originally Posted by dnar View Post
    Hi Dave, do you mind showing me a diagram of how you would use these with say 6 x diodes? I am trying to get the whole thing in my head.

    Here you go
    http://www.photonlexicon.com/forums/...odes+waveplate
    "its called character briggs..."

  8. #18
    Join Date
    Nov 2005
    Location
    Melbourne, Australia
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    Quote Originally Posted by dnar View Post
    Hi Dave, do you mind showing me a diagram of how you would use these with say 6 x diodes? I am trying to get the whole thing in my head.
    I used a wave plate in the 6 diode 445 I made up a few weeks back

    [edit] LaNeK779 beat me to it
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  9. #19
    Join Date
    Jun 2010
    Location
    Australia
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    Cool, I missed that thread! Maybe this is what I should try with 660nm as my quad red is only making 1W and I need more!
    This space for rent.

  10. #20
    Join Date
    Apr 2006
    Location
    Miami, FL
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    3,590

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    wow the australian dollar is worth more than the american dollar... I am going to go cry in the corner now

    anyhow, I am definitely down for a pair of 445 plates if you still have those multi-diode setups available

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