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Poll: What new wavelength would you most like to see accessible within 5 years.

What new wavelength would you most like to see accessible within 5 years?


  • Total voters
    25
  • Poll closed .
D

Deleted member 16589

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Rivem, you have just described that perfectly, now I want one ... and am considering allowing multiple votes if I can :whistle:


I have added 575nm to the list for you Lazerman121. The last time I saw that wavelength was when watching a video on a dye laser.

https://www.youtube.com/watch?v=xAYxfsHyVSA You probably have already seen it, but here is the link anyway.

Yea Ive seen that I hope he comes to selem again one year :D.
BTW i dont see 575nm on the list :p
 



CurtisOliver

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I have added 575nm for you lazerman121. 575nm has be manually added to my first post as 10 options is the max amount of options allowed. It just means that I have to keep updating.

That 575 is amazing, plus the power of the 532 is cool enough.
 

blueasthesky

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The only big area we hobbyist are lacking in for affordable lasers is the 630nm-594nm area. That's a pretty big range of the spectrum when you think of it. Anything past 594 and you start to get into ungodly expensive orange labbies. Anything below 630 has some affordable diodes but not cheap still by any means(think around $600) for some around 622nm & 627nm but after that you're screwed unless you have quite a bit of funds.

Really hope we get some cheap orange in the years to come. While 593.5 is quite amber looking it's not good enough for a complete rainbow! :D

-Alex
 

H2Oxide

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The only big area we hobbyist are lacking in for affordable lasers is the 630nm-594nm area. That's a pretty big range of the spectrum when you think of it. Anything past 594 and you start to get into ungodly expensive orange labbies. Anything below 630 has some affordable diodes but not cheap still by any means(think around $600) for some around 622nm & 627nm but after that you're screwed unless you have quite a bit of funds.

Really hope we get some cheap orange in the years to come. While 593.5 is quite amber looking it's not good enough for a complete rainbow! :D

-Alex

If you really wanted orange, Coherent and Spectra Physics CW dye heads show up on eBay often enough for reasonable prices (I've seen one with intact optics [OC and all] on eBay for $99 and not sell). Nobody wants them anymore. A circulator shouldn't be too hard to find, or even build, either. Realistically, the only limit to how much orange you can get is the power of your pump laser. Plus, you could get the entire orange+yellow spectrum! (with low linewidth too, assuming the BRF is in good condition) :)

However, they are a LOT more work than one of those newfangled orange labbies. Then again, I'll take more power and tunability over ease of use any day.

I find it interesting that dye is usually left out or forgotten in the hobbiest world. People are willing to re-gas and refurbish large frame ion lasers, but not align a single-fold resonator. Go figure.
 
Last edited:

CurtisOliver

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Well I bet many forgot we even did this poll 5 years ago, but it sure is interesting to look back on. A little bit of LPF nostalgia.

Here is a quick analysis:

420nm - 1 - 4%

Still very expensive to get hold of in diode form. However it is possible. Here is a 430nm and the company offers InGaN diodes in 5nm increments.

https://laserpointerforums.com/threads/the-tg430-55mw-430nm-laser-diode.103107/

490nm - 6 - 24%
495nm - 1 - 4%
500nm - 2 - 8%

Well we done very well in this section. A sudden influx of cheap diodes came our way very soon after this poll begun. 2016-2017 saw a boom of new wavelengths reviving the community. All of the cyan section became covered with cheap and powerful Class 3B diodes. And where the cyans stopped 505nm diodes tookover. Pretty much the entirety of cyan-aquamarine section is now available to the hobby. The only sad news is that the 480nm diodes dried up that came along with the 505's.


555nm - 3 - 12%

Still rare and expensive unfortunately

575nm - 1 - 4%
580nm - 4- 16%
Another surprise turned up when mysterious new DPSS lasers turned up at 565 and 575nm. Even more bizarre was they was cheap. Unfortunately some suffered crystal degradation. However word has it, that we should keep an eye out in the future for a return of these wavelengths.


595nm - 0 - 0.00%
610nm - 6 - 24%
620nm - 0 - 0.00%

As expected, orange still remains elusive. Only expensive means to get hold of wavelengths in this range. Whether it is DPSS or supercooled red laser diodes.

not specified - 1 - 4%

No of Votes - 25

Final Count - 31/01/2021 19:21UTC

Very interesting to see what wavelengths people wanted to see available and what actually happened.
 

Ears and Eggs

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Hopefully the next big advancement is something in the yellow range to fill that gap. Those 593.5 pens seem to be very hard to find these days. Only thing in that range is the 589s and those are incredibly expensive now.
 

CurtisOliver

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Hopefully the next big advancement is something in the yellow range to fill that gap. Those 593.5 pens seem to be very hard to find these days. Only thing in that range is the 589s and those are incredibly expensive now.
We can only hope. See you in 2026 lol
In seriousness though, there was some hope a while back. But like most things it didn't come into being. These 565/575's came out of nowhere. Maybe some others will at some point too?
 

Ears and Eggs

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Made a huge mistake selling my 593.5 pen a few years back, now that LaserGlow stopped selling that model it's become a big hole in my collection. :( They have the 589 one, but it's nearly $700 for <5mW - yikes. A direct diode in the 575-595 range would be perfect right about now. :D
 

CurtisOliver

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That is a shame. :( 593.5’s are indeed rare now. Also Laserglow has declined recently. I’m in for yellow laser diodes :p
 

RA_pierce

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Orange between 600 and 610 nm is what I really want. I've been collecting some rare red diodes and at some point I'll work on miniaturizing a cooling module to bring the wavelength down a bit. Starting at 633 nm makes it relatively easy to get real orange at much less than the cost of other solid state alternatives.
 




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