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  1. Richard Nield

    30w Red 1064nm laser not converting to green 532nm

    Hi, I really need some specialist help plse! I have a business doing 3D sub surface laser engraving (SSLE). Inside blocks of crystal. A 30w 1064nm red laser passes through a non linear ( QSwitched/ pulsed) crystal and changes to 532nm green laser. This green laser is focused and pulsed to burn...
  2. Richard Nield

    Sub Surface laser engraving

    Greetings to everyone, I have a real predicament and would really appreciate some assistance if at all possible. I have been let down by a manufacturer who sold me a sub surface laser engraving machine from China - for engraving 3D images into the centre of crystal blocks. I met them at a show...


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