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First consumer quantum dot laser diode!

julianthedragon

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Exciting News for the Laser Hobbyist

Quantum dot laser diodes have been long sought after for their promise of superior emission quality and wide range of available wavelengths.

Forecast_Figure8.jpeg

But due to the complexity of using quantum dots as a gain medium and lack of incentive for mass production, they have always been relegated to high cost research or industry settings. That is, until now.

b25lY21zOjNlNjc3ZDQwLTIzODktNDJkNy1iZjA1LTFkNzM1Zjk3NzEzZjo0MGNhZmRjMC01Mzg4LTRmYzItYTA2Zi04Y...jpeg(New QD lasers illuminating the night sky — Edinburgh, Scotland)


State of the art laser part developers at Realpoo have announced the first affordable quantum dot laser diode made for consumers and hobbyists. It is slated to ship later in April and come in two tunable versions in the visible spectrum: 400.1-555.8nm and 567.2-763.0nm.

Check out the specs and get a quote here.

Most surprising is the relatively high power output of these diodes, with the website stating they can be driven up to 420.69mW of pure quantum goodness. Be careful though, any higher and you might rip the quantum fabric of space and time
 

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julianthedragon

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Haha.....420.69 huh......I got excited when I 1st saw it, that said aren't there some near ir quantum laser diodes on the market now ?
I saw some while making this post so i almost ditched it but thought ah what the hell...
I haven't asked for a quote so I figured affordability might still be out of the question.

I also found this article from 2003 and this article from 2021 which discuss some of the difficulties and gains made in the development of these diodes
 

CurtisOliver

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I saw some while making this post so i almost ditched it but thought ah what the hell...
I haven't asked for a quote so I figured affordability might still be out of the question.

I also found this article from 2003 and this article from 2021 which discuss some of the difficulties and gains made in the development of these diodes
I would say they are definitely expensive and for specialised purposes atm.


But eventually they will transform the diode market. We might even see our first yellow diode out of QD's. And that isn't an April Fools this time. :p

The link below essentially would act like a cross between a QDLD and a OPSL. So a OPQDLD.


For anyone just curious about QD's: https://www.instructables.com/DIY-Quantum-DotsNanotech-in-Your-Kitchen/
 
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swansong

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Although there is some coherent light at the end of the tunnel. QDLD’s are not that far away from being a reality in the visible spectrum.
What sort of power levels do you think consumer QDLD's could have when they hit the market in the future?
 

CurtisOliver

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Expect <50mW at first. These devices will at first be utilised in devices needing lower lasing thresholds. But there is no reason why they wouldn't develop further like ordinary semiconductors did.

For me this is the most exciting prospect. These would be the OPQDLD's (self coined term)
These novel, dual-function devices clear the path towards versatile, easy-to-fabricate laser diodes; because the output wavelength can be tailored by changing the size of the quantum dots, the technology can potentially result in lasers with wavelengths anywhere within a broad spectrum.
 
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swansong

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Expect <50mW at first. These devices will at first be utilised in devices needing lower lasing thresholds. But there is no reason why they wouldn't develop further like ordinary semiconductors did.

For me this is the most exciting prospect. These would be the OPQDLD's (self coined term)
I can't help but wonder what the beam quality of QDLD output will be as compared to ordinary semiconductors output?
 

Snecho

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Expect <50mW at first. These devices will at first be utilised in devices needing lower lasing thresholds. But there is no reason why they wouldn't develop further like ordinary semiconductors did.

For me this is the most exciting prospect. These would be the OPQDLD's (self coined term)
Maybe they will be the way forward in my quest to make an orange laser
 




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