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Thread: DTR's Laser Shop: Diodes-Drivers-Lenses-LEDs & More

  1. #671
    Join Date
    Nov 2008
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    Cleveland Ohio
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    We need fiber laser red. Can't be that expensive to make a few watts. Even if it's freq doubled it has to be doable. 2 watts in 2mm beam under 1mrad full angle

    Imagine a single fiber with three sections for perfect overlap like a gas laser all in the same coil. No optics. Could even add yellow. Now that would be the final design. Thinking to add the fibers same way you couple in diode pump sources. Beyond me but I like the idea. Need to get the projector people to make it for video source. 640/590/530/465/445. Yea now that's a source.

    http://www.laserfocusworld.com/artic...e-visible.html
    Last edited by kecked; 07-15-2017 at 03:35.

  2. #672
    Join Date
    Jun 2007
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    Monroe, Mi USA
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    Quote Originally Posted by DTR View Post
    I have been slammed and have one mounted ready to do a power test I just need to find a minute to get it done. I have taken a quick look at the beam and the output divergence is similar to the Mitsu 500mW and Oclaro 700mW.
    https://sites.google.com/site/dtrlpf...des-gh0637aa2g

    CRAP....Another "Fashlight" that needs severe correction....Do they not know....we have waited....patiently....for YEARS....at least gimme a watt....NOT overdriven !!!

    Kecked....perhaps a Fibre Optics solution is a way to go !! ?? Dunno....I DO know that fibre bundle Coherent input is extremely position demanding...= $$$$

    Sigh !!!

    Beam Out !
    Beam Axiom #1 ~The Quantum well is DEEP ! Photons for ALL !!
    .
    Beam Axiom #2 ~Yes...As a matter of fact...I DO wear tinfoil on my head !!
    .
    Beam Axiom #3 ~Whe'n dout...Po ah Donk awn et !!
    .
    Beam Axiom #4 ~A Chicken in every Pot, and a Laser Lumia in every Livingroom !!
    .
    Beam Axiom #5 ~"Abstract Photonic Expressionism"....is "Abstractonimical" !!
    .
    Beam Axiom #6 ~ "A Posse ad Essea" ~ From being possible to being actual ...is the beam target !

  3. #673
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    Nov 2008
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    Cleveland Ohio
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    http://sintecoptronics.com/FiberLaserVisible.asp They exist. Cost unknown.
    5mrad....not good

  4. #674
    Join Date
    May 2007
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    Authentic Asian food area of SoCal
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    I still find it interesting that the price/mw in the "argon" range has fluctuated wildly in the past 20 years. The price/mw for red has fluctuated too but nothing like it has for the green/blue range. Way back when, it was either HeNe or Krypton or exotic dye laser; cheap low power or expensive high power. Argons were always expensive in comparison and outside of *very low* power HeNe's, there was no such thing as cheap green. Now, blue and green are just cheap all around and red is still: cheap "low power" or expensive (optical train, SHG, OPSL) high power. It's very interesting.

  5. #675
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    May 2007
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    55mW 473nm sharp laser diode: OUT OF STOCK! What is this madness, Jordan? Will you be getting any new diodes or was this only a small run?

  6. #676
    Join Date
    Feb 2007
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    Fort Mill, SC USA
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    Hey folks,

    I just took some time to look at the new 505nm and 473nm diodes that I got last month and took some measurements. I included my findings in the first post in this thread: http://www.photonlexicon.com/forums/...745#post306745

    I didn't compare the 505nm diode against a 520nm, but I think I recall most of these being closer to 510nm so I wouldn't expect much of a difference. I only pushed mine to 100mw with a G2 lens without being at the top of the curve and it held steady throughout testing. Additional testing would be required to see if it gets damaged over time. It tends to correct about as well as the other 520nm single mode diodes we've seen.

    The "473nm" is a really pretty color. Again, not accurate to the wavelength claim as I recall. It corrects really well and made it to 148mw before it started dropping off. Again, we'd need some real world testing to see how it holds up over time.

    -David
    "Help, help, I'm being repressed!"

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