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Thread: GoldenStar RGB 3000

  1. #21
    Join Date
    Jul 2006
    Location
    Belgium
    Posts
    278

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    I believe the fiber is used as a rod lens to (partially) correct the slow axis divergence and not as a long barrel lens to destroy coherence.

    Quote Originally Posted by VDX View Post
    ... I have some fiber-coupled IR-diodes with 50 micron or 105 micron fibers, directly attached before the laser crystal - another type contains several diodes in the housing, which are precollimated and focussed in a 105 micron fiber ... could be the same with fiber-coupled VIS-diodes.
    Quote Originally Posted by VDX View Post

    So the laser beam is fed through the fiber and "homogenized" by removing the polarisation - essentially it's a LED-like light-source with the wavelength of the laser-diode and an emitter size of the fiber diameter ...

    Viktor

  2. #22
    Join Date
    Oct 2012
    Location
    Germany
    Posts
    962

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    ... if the beam isn't inserted into the (long) fiber, but a short piece of fiber is placed perpendicular to the beam, then this is only a "cheap" replacement for a cylinder lens ...

    Viktor
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