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FrozenGate by Avery

Sony Announces new 405mn 100W laser

drumz0rz

drumz0rz

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Check this out guys. Sony and Tohoku University announce a new laser allowing for more blue ray storage. It's a 405nm laser that has acheived an output of greater than 100W! And people were worried about the 1W 445nm...

blue_violet_laser.jpg


I'm sure this tech is still a ways out from getting to consumers hands, but the first person to crack one open and put in in a host gets a prize.

In a press release, Tohoku University and Sony stated:

“This latest successful development is an all-semiconductor laser picosecond pulse source with a laser wavelength of 405 nanometers (1 nm = one-billionth of a meter) in the blue-violet region. It is capable of generating optical pulses in the ultrafast duration of 3 picoseconds (1 picosecond = one-trillionth of a second), with ultrahigh output peak power of 100 watts and repetition frequency of 1 gigahertz. Advanced control of the newly-developed and proprietarily-constructed GaN-based mode-locked semiconductor laser and semiconductor optical amplifier have enabled peak output power in excess of 100 watts to be achieved, which is more than a hundred times the world’s highest output value for conventional blue-violet pulse semiconductor lasers.”
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Link to full article: Sony and Tohoku University announce next generation laser for disks
 





I can only see places with huge archives, like universities and large labs needing a pico-second 405nm laser. Cool find though, +1.
 
Pretty awesome though wouldn't be much fun for a handheld. Would probably have a massive capacitor that could pop, not to mention you woudln't be able to see the beam. *Edit, oops didnt see the 1ghz, thought it was a single pulse. That would have some hefty power requirements wouldn't it?*

Did you guys see a while back where the military build a system that detects optics being pointed at its self and then blasts craters in the lens of the optics to render it useless with a femtosecond pulsed laser?
 
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I had a picosecond 100W 405nm laser once.

I hooked up a 450v 3300uF capacitor to a PHR. :crackup:

-Trevor
 
Interestingly enough, easyhaz says it would only need OD of about 5.2
 
Prototype said:
I can only see places with huge archives, like universities and large labs needing a pico-second 405nm laser. Cool find though, +1.
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Agreed, but what made it post worthy here is that SONY wants to use in in upcoming consumer Blu-Ray technology. Also, the fact that they could put this in a BD burner means it'll be small and able to run off a 12v source. The power requirement might hold it back from being a handheld but could easily be made into a lab type laser.
 
3e-12 s pulse width, 1e9 Hz. That means .3% duty cycle at 100W peak, which gives a time-average power of 300mW. I believe it'd be easier for your laser pointer/tape burner to just use a 12x diode in CW mode if you're after tape-burning or visible beams.

Very cool science to be running these diodes mode-locked and such like they are, but really not too applicable to laser pointers at this time. It is awesome, but not in any "I can see the beam" or "it burns stuff" sort of way.
 
Wallydraigle said:
Will this burn black electrical tape?
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Bahahaha! I was enjoying the good reads in this thread and you went and posted this. Nice.

I just don't get why they would need such a huge inscrease in output if to be used for consumer electronics purposes. If that even efficient?
 
NobleKnight88 said:
I just don't get why they would need such a huge inscrease in output if to be used for consumer electronics purposes. If that even efficient?
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As burn speed and data density increase, the amount of time a point on a disc is over the laser assembly decreases. Therefore, more power. :)

-Trevor
 
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