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Thread: Beautiful Berlin Lasers

  1. #1
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    Default Beautiful Berlin Lasers

    Check these pictures out. I just got it through the ILDA email list.

    http://www.picturereport.net/?p=2659

    Technical Specs (according to the email):

    "Technical background information:

    Only our world bests lasersystems are being in use for this outstanding
    project, developed and modified by our enthusiastic technicians.

    Divergence from all beams are below 0,4mrad and maximum of 3mm beam-diameter
    for the green line, and below 2mm for all other colours. No extra
    collimation optics are used to keep the rainbow looking more real with
    slightly overlapping colors after 6km distance.


    colour wavelength power
    ----- ---------- -----

    red 628nm 15,8W pure laser power
    orange 628nm/532nm mixed 15,0W pure laser power
    yellow 628nm/532nm mixed 19,5W pure laser power
    green 532nm 10,5W pure laser power
    cyan 457-514nm mixed 24,5W pure laser power
    blue 457-488nm mixed 12,0W pure laser power
    darkblue 445nm 8,5W pure laser power

    All laser sources are pure single line resonators, no common diode-arrays or
    OPS-arrays are used."


    Absolutely beautiful!

    -Marc
    Last edited by gottaluvlasers; 02-08-2010 at 15:15.
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  2. #2
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    Default

    Yeah , stunning , would love more details on how far they are visable for
    In the beginning there was none. Then came the light - #1 UKLEM - 2007
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  3. #3
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    Thumbs up

    Quote Originally Posted by gottaluvlasers View Post
    Check these pictures out.

    All laser sources are pure single line resonators, no common diode-arrays or
    OPS-arrays are used.
    WOW. Arctos, eat yer heart out.. I've gotta believe though, that these are, in-fact, OPSLs - just not 'arrays' - if-so, that is incredibly-encouraging for future 'large-frame' replacement applications (where you NEED all the lines you have inherent in an Ion...) - now THIS is a Laser system WORTH dropping $350-400K on! (vs an Arctos.) ... but I'm sure this-things' price tag would be a good deal more...

    thanks, Marc..
    j
    ....and armed only with his trusty 21 Zorgawatt KTiOPO4...

  4. #4
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    Default

    Woow, thats really beautiful!

    I now have new wallpaper

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    Exclamation

    WOAH! Wait...Hold the phone!! I had a closer look - That's a SP 2080 (?) Head!!!


    Click image for larger version. 

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    Sooo, Ions are the 'hero', yet again!! ...Ions FOREVER!!!!

    Seriously, seeing the power levels there, I was wondering how they could have a 'single-resonator' with OPSL / solid-state... but, new stuff is coming out all the time, especially over in Europa, there, and I would not be totally shocked to see such power shortly-forthcoming, if-not already-here... pleased-as-punch, but not 'shocked'...

    Wondering what other Ion guns they have under the tarps, there? 171? Likely a KTP or DPSS for the 532, but the 628nm? ...Steve - isn't that your favorite line: 'sunkissed orange'..? And now, seeing that at least SOME of these are clearly Ions (well, UNLESS they simply used an ion HOUSING - could-be.. ??) wondering why they would not at least black-visquine the install-walls off, to protect from the snow piles accumulating - sure, not too-difficult to deal with running water in the cold (run hot to the heat exchangers, and never shut anything off!! ) but I'd think they'd wanna keep the heads somewhat insulated, besides those cheezy plastic tarps...

    Anyhoo, COOL to see Ions (I think... ) still being champions of the light...

    peace...
    j
    ....and armed only with his trusty 21 Zorgawatt KTiOPO4...

  6. #6
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    Uh dont even heard about that. A friend lives there. i hope he has made some nice Pix!

  7. #7
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    628 @ 15 watts KTP pumped dye ? Or Jenlas ???????? KG:YAG has a line that can be doubled near there, but KG is not known for its heat conduction..

    I'm guessing here...

    Nothing ion does that much 628, there is a 630 nm KR ion line, but its only a few hundred mW out of a KR largeframe maxed out with special optics.. I didnt think OPSL are there yet, so the red is Jenlas, Some other OPO, Dye or a very rare lamp pumped solid state. Silm chance its OPSL. I'd be highly suprised if there is a single piece OPSL red, but I havent talked to anybody at Coherent in years.. I doubt its raman shifted KTP, but that is a very slim chance...

    Those red numbers have me baffled..

    meanwhile back at the ranch... "We'd like to know something about you for our files:"

    Who in the neck in NYC did this for Her before ? Jeeze, I'm in the wrong line of work... Dont even need a Pangolin for this...

    Someday Jon, ask me about Lexel ions on a icy 13 story rooftop at 20'F using cold fire mains, Its NOT as hard as you might think, just there is a mad scramble when you shut down.. One little problem in Ohio at 20'F. There is no moisture or dust in the in the air, only raman scattering off the oxygen. ...... Thank God we had a 450x150 foot windowless wall to scan on.... One other little issue about the index of refraction of the air between the brewsters, has this nice detuning effect, but , but we wont get into that here...

    Steve

    QUOTE FROM COLUMBIA MAGAZINE, Shes a Alumnus of Columbia

    BEGIN QUOTE:

    Spectral vision In January 2007, artist Yvette Mattern ’87SOA was driving through Concord, Massachusetts, when she saw something remarkable in the turbulent sky above Walden Pond: a brilliant, sky-sweeping, pot-o’-gold rainbow “coming out of those apocalyptic clouds like a true vision.”

    All at once, Mattern got the big idea: to create a giant virtual rainbow. She read books on light refraction, consulted physicists. The logistics were daunting. Then, in September 2008, she saw a laser display in Berlin and was struck by its power. Now she envisioned a beautiful rainbow made of lasers. But there was one small question: How do you bend the light into an arc?

    Mattern arrived at a witty if unscientific solution: If rainbows were to be projected simultaneously in multiple cities, then the light, which she imagined as being interconnected, would bend, in theory, with the curvature of the planet.

    What she needed now was the proper occasion for which to try out the idea. Little did she know, even in September, just what history had in store.

    When Barack Obama was elected president on November 4, Mattern, who is multiracial (German father, Afro-Caribbean mother), decided to stage a single rainbow installation, which she called The Global Rainbow. The date she wanted was Monday, January 19, 2009, which was Martin Luther King Jr. Day, and also the day before Obama’s inauguration: a once-in-a-lifetime moment, the very culmination, it seemed, of all the optimistic things a rainbow stood for.

    With barely any time to raise money, the Berlin-based Mattern decided to foot the $20,000 bill herself. A realtor friend in New York helped her find the ideal location from which to mount the two sets of laser boxes and beam the lights: the pyramid-shaped top of 14 Wall Street, the former penthouse apartment of J. P. Morgan. The proximity to the World Trade Center site and to the Brooklyn Bridge would frame the display in a certain grandeur.

    The January 19 date was, for Mattern, nonnegotiable, and she labored feverishly to assemble her team of technicians and to secure the necessary permissions. But then, a week before the King holiday, she received an 11th-hour bombshell. To project the lights, she was told, she needed clearance from the Federal Aviation Administration — a process that would take up to 30 days. All her plans threatened to come undone.

    As it happened, Mattern’s father had worked for decades as an inspector at the FAA. She called him and explained the situation, and he made some calls of his own. When he got back to her that day, he said that she would have clearance within hours. Five minutes later, a news flash appeared on Mattern’s TV: a commercial airliner had crash-landed in the Hudson River. Everyone survived.

    The evening of January 19 was cold, with a steady snowfall. At 5 p.m., in the canyon of Wall Street, seven rays of light, glittering like diamonds as snowflakes passed through them, shot east and west across Lower Manhattan, from ground zero to the far end of the Brooklyn Bridge. Mattern hired a gypsy cab to drive her and a photographer around so she could observe her handiwork. As the night progressed and people became aware of the spectacle, crowds formed on the pier at Fulton Ferry Landing. Tour buses pulled over, cameras flashed. “It was a spontaneous gathering, a community feeling,” Mattern says. “People were in awe. It was exactly how I wanted it to be.”

    — PH


    ENDTH QUOTE
    Last edited by mixedgas; 02-08-2010 at 16:48.
    Qui habet Christos, habet Vitam!
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    When I still could have...

  8. #8
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    Quote Originally Posted by mixedgas View Post
    628 @ 15 watts KTP pumped dye ?

    Those red numbers have me baffled..
    Of course, how could I forget??!!



    ...I have heard of 14W (supposedly) out of those puppies, and they state: '628/532' - makes perfect sense if they modded a KTP/Dye sys... and any 'pulses' from the Q would not matter, since this was just a beam... Hmm, could be..

    Quote Originally Posted by mixedgas View Post
    Who in the neck in NYC did this for Her before ? Jeeze, I'm in the wrong line of work... Dont even need a Pangolin for this...
    Dunno, wasn't us... bet it went 'unregistered', too...

    Quote Originally Posted by mixedgas View Post
    Someday Jon, ask me about Lexel ions on a icy 13 story rooftop at 20'F using cold fire mains,...
    Sure, would love to hear it - we can 'swap' stories about the time we shot a Sabre in 8˚ in Providence - all was well till the well-meaning-but-ignorant Fire Marshall shut the hydrant, (with no warning ) cause it was 'leaking on the street'... ~ 30 min before showtime... yeah, later, taco...

    OK, so: here's my guess on the arsenal:

    628 for Red, Orange, Yellow: KTP / Dye - possibly 2x large medical heads or a giant, 'industrial' head, to enable that much Red (would have to be like 48W+ of 532-pump, yes?)

    532, 10W: ...well, that's easy...

    Cyans, 24W: ...I-400 or 171, even...

    Blues, 12W: ...looks to-be that SP 2080 (?) head..

    Deep Blue/Violet, 8.5W: ...Again, I-400, maxed-out, w/ super-duper blueper mirs? Or? That's a LOT of 445...

    Thoughts?
    j
    ....and armed only with his trusty 21 Zorgawatt KTiOPO4...

  9. #9
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    ya know every time i see DSLjohn, steve, clandestiny and some of you other ion gods throw some of this knowledge out here i REALLY get upset at myself for not getting involved with ion systems!!

    We are talking some serious laser powers here and some beautiful laser systems and i wish i had some experience with them. lasers like this, colors like this, beams like this are just not even remotely possible with todays solid state technology. Well, not without a bank account with >$1M in it anyway, and even then it probably isnt possible.

    I propose this-

    John, steve, clandestiny, and some of you other ion guys...put your heads together and start developing some solid state lasers with ion properties and powers!!! i don't care if it isnt possible. make it possible!

    >80-100W like these pictures show, in a solid state system would have what, 8-10mm if not larger beams huh?? and divergences like flood lights rather than lasers?

    i have been staring at the beam pictures relfecting off of the mirrors from this post forever. it is hypnotizing!

    -Marc
    http://www.laserist.org/images/ildalogos/ILDA-logo_colored-beams_Corporate_150w.jpg

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    • KVANT Laser Modules & Laser Systems
    • X-Laser USA
    • CNI Lasers
    • Cambridge Technology & Eye Magic Professional Scanning Systems

    FDA/CDRH Certified Professional LuminanceRGB Laser Light Show Systems


  10. #10
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    Quote Originally Posted by mixedgas View Post
    I'd be highly suprised if there is a single piece OPSL red, but I havent talked to anybody at Coherent in years.
    639nm taipan OPSL

    Nowhere close to 15,8 W 628nm, though.

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