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Old 04-18-2012, 03:48 AM #1
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Default When Blue Makes Green

When Blue Makes Green
________________________________________
Posted on ScientistLive.com
Monolithic focusing optics for single emitter diode lasers

Photonics Online Newsletter Posted April 17th - This is now a Dead Link
Blue Laser Light Monolithic focusing optics for single emitter diode lasers
Quote:
The Dortmund-based [LIMO Lissotschenko Mikrooptik GmbH ] company has developed micro-optics for 'true' blue, high-performance single emitter diode lasers; the technology focuses the beam with precision on an area measuring approx. 40 x 40 Ám▓. Micro-optics technology is ideally suited for pumping solid-state crystals or for fiber coupling.
Quote:
The new trend is towards single emitter diode lasers (spectral width: 420 to 470 nanometres) which, due to higher outputs of up to 1-2 W , are becoming increasingly popular in lithographicy . . .

The new devices have already been successfully deployed for energy-efficient solid-state crystal pumping within the scope of the project 'Integrated Green Efficient Laser' (IGEL), which the German Federal Ministry of Education and Research (BMBF) has funded with EUR 3.5 million. The term 'green laser' may be misleading for some: The actual light source is a blue laser diode, the wavelength of which is converted upwards within the crystal to produce a green laser beam.


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Old 04-18-2012, 03:59 AM #2
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Default Re: When Blue Makes Green

Micro optics for DPSS in a diode can. I like it.

40X40 um means there might be no astigmatism/aberration in the output.

Thanks for sharing!

Very cool!
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Old 04-18-2012, 06:31 AM #3
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Default Re: When Blue Makes Green

Very cool project for a 3.5M budget!
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Old 04-18-2012, 02:48 PM #4
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Default Re: When Blue Makes Green

So wait, they're turning the frequency down?....

I've only heard of the opposite... sounds interesting!
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