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Combine red and violet diodes

GG-lasers

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I wanted make a pink laser without combine diodes. I searched for a wavelength of the pink colour and i noticed it not even exist!
So if want make a pink laser i assume you must combine blue diode and a bit more powerful red diode...

But here it comes a question, what will be the result of combining the lowest and the highest wavelengths together?
I mean violet 405nm and red 635-650 nm?

I searched for this but nobody have any video or image of that so if anyone here had tried in the past or want try in the future will be great to share some pictures of this project 😃
 



Gianakakis

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I wanted make a pink laser without combine diodes. I searched for a wavelength of the pink colour and i noticed it not even exist!
So if want make a pink laser i assume you must combine blue diode and a bit more powerful red diode...

But here it comes a question, what will be the result of combining the lowest and the highest wavelengths together?
I mean violet 405nm and red 635-650 nm?

I searched for this but nobody have any video or image of that so if anyone here had tried in the past or want try in the future will be great to share some pictures of this project 😃
Actually, Zenodilodon has done it
 

Alaskan

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Combining 405 nm with red is very novel, pink instead of magenta, hmm.... is it really pink, or somewhat like magenta?
 

GG-lasers

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Combining 405 nm with red is very novel, pink instead of magenta, hmm.... is it really pink, or somewhat like magenta?

I have a 405nm laser and is a very nice wavelength, it isnt just purple and i think the 650nm will be very special as well. So combining 2 special wavelengths should result a nice colour
 

hakzaw1

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I bid and won a magenta (mini labby) from Cajun Laser (now closed afaik) IIRC it was a 650/405 combo-- before we had affordable blue.
prolly 300 mW total- awesome color --better than any pink laser.
 

Cyparagon

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The color is about what you'd expect, but I don't have the gender to describe it. I did it once on the floor with a prism like a decade ago. I'll try to dig up the picture later tonight if I remember.
 
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thanhtung

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Here is my 660 + 450nm
Power about 250mW
 

paul1598419

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If you want pink, I'd go for 488nm and 635nm. But, it may not be as high a power as you are looking if you are looking to burn with it.
 

Cyparagon

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Or here's several different pinks my projector can produce with various ratios of 638nm and 462nm (both images from 2009)

 

Alaskan

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Shouldn't be too hard to match up the power required for each wavelength for the shorter and longer wavelength extremes of the visible spectrum to make pinkish, as our eyes are roughly the same sensitivity to 405 and 670 nm:



410 nm ( λ for the 405 nm high power diode pushed close to 1.5 watt) and 650 nm are not so well matched:

 
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FireMyLaser

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If you want pink, I'd go for 488nm and 635nm. But, it may not be as high a power as you are looking if you are looking to burn with it.
^This.
Mixing two wavelengths from either end of the spectrum will create magenta/purple depending on ratio, but never pink.
488nm diodes may be a bit too close to green depending on what diode you get. 475-485nm would be best.

pink.png
 
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Alaskan

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If a shade isn't purely magenta, I too might think of it as pink, when it isn't.
 

FireMyLaser

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Pink is a pale magenta. To get pale you must get closer to the center of the CIE 1931 diagram. What you personally choose to call what colour is doesn't actually make it so.
 

GG-lasers

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^This.
Mixing two wavelengths from either end of the spectrum will create magenta/purple depending on ratio, but never pink.
488nm diodes may be a bit too close to green depending on what diode you get. 475-485nm would be best.

View attachment 70112
It looks very nice colour. So the only way to generate this colour is combine 2 diodes?
I heard i can use LED diodes as laser diodes also but these are not so powerful like normal laser diodes?
Some LEDs can generate all RGB colours because it has 3 tiny diodes in 1. But i cant find something similar for a single non-LED laser diode.

If want combine i ll need buy 2 diodes and some lens to focus both beams to 1 direction and 2 drivers (1 for each diode)?
 

FireMyLaser

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You need a minimum of 2 specific wavelengths to produce any possible colour, but you can use more. For a pure spectral colours you only use one. Pink (and magenta) are not spectral colours. To combine the beams you need combing optics like a dichroic mirror. Combining lasers is no simple project for a beginner. You should use one driver per diode. LEDs are not lasers. You can buy pink LEDs for pennies.
 
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GG-lasers

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With 2 wavelengths i can make every colour? I guess you mean if i want a laser that can output 1 single colour only right? If i want make a laser which can produce for example all RGB colours then i need 3.

Anyway if combine is so hard for beginners then is there any company- team which can combine wavelengths and sell lasers by order?
 




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