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Thread: Homemade DPSS CW TiSa Laser

  1. #11
    Join Date
    May 2007
    Location
    Austria/Vienna
    Posts
    308

    Default

    Hello!
    We do have a cost effective solution too: https://www.live-lasersystems.at/d/laser-modules.html



  2. #12
    Join Date
    Nov 2022
    Posts
    5

    Default TiSa above threshold!

    Hey guys,

    a lot of stuff has happened since the last time I posted! I went to the US for a semester abroad and started doing my master's at a laser place - My colleagues there were so incredibly kind to lend me a place for my experiments and a small Verdi laser.

    So, finally I got it to lase, first with the Verdi Laser and after it was optimized at that working point, I got it above threshold with one of my 461nm FAC diodes. It is barely above threshold and only with a near HR mirror (prob 0.1% T) so there's a lot to do still. But: It is done, it lases only with a blue diode!

    Here's two videos showing the results:

    https://youtube.com/shorts/NqSdcTH_fz4?feature=share

    An infrared viewer makes the spot much more visible than my smartphone:

    https://youtube.com/shorts/0_e2SwV7JD0?feature=share

    I cant use all the diodes since they are not perfectly aligned. But I will probably redesign the entire thing anyways. Those >3 W blue diodes are just a nightmare Mē-wise.

    Greetings from Germany
    Nik

  3. #13
    Join Date
    Nov 2008
    Location
    Cleveland Ohio
    Posts
    2,594

    Default

    congrats. I got nowhere.




    Quote Originally Posted by NiklasH View Post
    Hey guys,

    a lot of stuff has happened since the last time I posted! I went to the US for a semester abroad and started doing my master's at a laser place - My colleagues there were so incredibly kind to lend me a place for my experiments and a small Verdi laser.

    So, finally I got it to lase, first with the Verdi Laser and after it was optimized at that working point, I got it above threshold with one of my 461nm FAC diodes. It is barely above threshold and only with a near HR mirror (prob 0.1% T) so there's a lot to do still. But: It is done, it lases only with a blue diode!

    Here's two videos showing the results:

    https://youtube.com/shorts/NqSdcTH_fz4?feature=share

    An infrared viewer makes the spot much more visible than my smartphone:

    https://youtube.com/shorts/0_e2SwV7JD0?feature=share

    I cant use all the diodes since they are not perfectly aligned. But I will probably redesign the entire thing anyways. Those >3 W blue diodes are just a nightmare Mē-wise.

    Greetings from Germany
    Nik

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