/tech/ - technology

>>2801
(Looks like I forgot to delete some words, serves me right for editing stuff in the middle)

Also didn't bright up the sensor part at all because I'm not even sure if I will be able to acquire the laser diode in the first place, but so far I've found some 1000nm-1600nm photodiodes for cheap so in theory could I just put a filter in from of it to block all other radiation aside from the desired wavelength of 1450nm-1550nm?
And ofc where can I get such filters?

>>2801
Sorry Alice, I don't have much expertise in this area, but this guy has several videos on lasers, and does mods on them to increase there power, it pretty much all went over my head but maybe it would be of use to you, since you could mod a weaker laser to be stronger.

https://www.youtube.com/watch?v=DMVWW-bmKwQ&pbjreload=10

also whats the project?

𝚈𝚘𝚞'𝚍 𝚙𝚛𝚘𝚋𝚊𝚋𝚕𝚢 𝚑𝚊𝚟𝚎 𝚋𝚎𝚝𝚝𝚎𝚛 𝚕𝚞𝚌𝚔 𝚊𝚜𝚔𝚒𝚗𝚐 𝚊 𝚍𝚎𝚍𝚒𝚌𝚊𝚝𝚎𝚍 𝚌𝚘𝚖𝚖𝚞𝚗𝚒𝚝𝚢 𝚕𝚒𝚔𝚎: 𝚑𝚝𝚝𝚙𝚜://𝚕𝚊𝚜𝚎𝚛𝚙𝚘𝚒𝚗𝚝𝚎𝚛𝚏𝚘𝚛𝚞𝚖𝚜.𝚌𝚘𝚖/ 𝚘𝚛 𝙳𝙼𝚒𝚗𝚐 𝚜𝚘𝚖𝚎𝚘𝚗𝚎 𝚠𝚑𝚘 𝚜𝚎𝚎𝚖𝚜 𝚝𝚘 𝚔𝚗𝚘𝚠 𝚊 𝚕𝚘𝚝 𝚊𝚋𝚘𝚞𝚝 𝚕𝚊𝚜𝚎𝚛𝚜.

Not IR specifically, but I built a laser engraver recently and had to order multiple 445nm 1.5W diodes. I don't know what power you are looking for but before buying please make sure you have a pair of protection googles rated for your laser power. IR is invisible and reflects in weird ways, plus sellers like to lie about output power. Very risky to toy with above 5mw - eye surgery costs 10.000€+. Goggles are just 50€.

Sites (besides eBay) I used, they may have your wavelengths:
http://www.aixiz.com/ (looks sketchy but I had no issues ordering)
https://www.survivallaser.com/ (they have the cheapest laser goggles with certificate)
https://laserpointerforums.com/ (They sometimes have group buys)
>Is there any realistic chance that I, a mere mortal can get a reasonable price from a manufacturer if i request a quote for like 5 laser diodes?
I had no luck with that. Maybe if you get a group buy and contact a supplier with a order quantity of 20+? The Laser Pointer Forums have a section dedicated to that. I'd also try asking them for help.

Something that's been on me todo list: see if its possible to write an n64 homebrew that uses the ir in a gameboy robopon cartridge to mess with the tv menu. I know it's possible with a bog standard gameboy color and a tom clancy? game had a feature that did just that. Have everything I need, just haven't got around to opening up the cart\rom to see if its hopefully not too much more fancy than a shift register.

OT, I suppose you can source parts from a broken consumer thing.

>>2805
>https://www.youtube.com/watch?v=DMVWW-bmKwQ&pbjreload=10
Very popular, of course I already watched all videos of his but mostly for entertainment, nice channel but I found noting particular of use for myself

>>2807
>𝚈𝚘𝚞'𝚍 𝚙𝚛𝚘𝚋𝚊𝚋𝚕𝚢 𝚑𝚊𝚟𝚎 𝚋𝚎𝚝𝚝𝚎𝚛 𝚕𝚞𝚌𝚔 𝚊𝚜𝚔𝚒𝚗𝚐 𝚊 𝚍𝚎𝚍𝚒𝚌𝚊𝚝𝚎𝚍 𝚌𝚘𝚖𝚖𝚞𝚗𝚒𝚝𝚢 𝚕𝚒𝚔𝚎: 𝚑𝚝𝚝𝚙𝚜://𝚕𝚊𝚜𝚎𝚛𝚙𝚘𝚒𝚗𝚝𝚎𝚛𝚏𝚘𝚛𝚞𝚖𝚜.𝚌𝚘𝚖/ 𝚘𝚛 𝙳𝙼𝚒𝚗𝚐 𝚜𝚘𝚖𝚎𝚘𝚗𝚎 𝚠𝚑𝚘 𝚜𝚎𝚎𝚖𝚜 𝚝𝚘 𝚔𝚗𝚘𝚠 𝚊 𝚕𝚘𝚝 𝚊𝚋𝚘𝚞𝚝 𝚕𝚊𝚜𝚎𝚛𝚜.
Seems like a cool forum, yet has no category for any kind of IR, but I'll keep it in mind if I need it in the future.

>>2808
>I don't know what power you are looking for but before buying please make sure you have a pair of protection googles rated for your laser power. IR is invisible and reflects in weird ways, plus sellers like to lie about output power. Very risky to toy with above 5mw - eye surgery costs 10.000€+. Goggles are just 50€.
For my use case I'm happy with no more than 5mW, even then it's not meant to operate near humans, also read on some manufacturers page that at 1450nm+ the lasers are semi-eye safe, having something to do with it not being able to reach your retina or something.

>http://www.aixiz.com/
>Last one on the list is "980nm Lasers"
Where have I seen this before

>I had no luck with that. Maybe if you get a group buy and contact a supplier with a order quantity of 20+? The Laser Pointer Forums have a section dedicated to that. I'd also try asking them for help.
At least now I'm sure not to waste my time and hopes. A group buy seems like the only way, but I don't know anyone that might need such a thing, and that laserforum doesn't even have an IR category.

This is the closest to what I am looking for, but as noted previously I'm based outside of burgerland therefore huge shipping costs will apply
https://www.mi-lasers.com/product/5mw-1470nm-mitsubishi-ml920j16s-2/

>>2809
>Something that's been on me todo list: see if its possible to write an n64 homebrew
Never owned a nintendo lol, but good luck

>OT, I suppose you can source parts from a broken consumer thing.
The only thing that comes to mind would be old/broken medical equipment because this is the most common use for this band, but they never sell for cheap, and if it's considered "broken" then its most likely because its main component, the laser, is in some way damaged. Might be a nice way to salvage useless med equipment garbage but not laser diodes.

>>2812
It's >>2808 again, I did some digging through my bookmarks and found http://www.roithner-laser.com/. They sell diodes at almost every wavelength and it seems like they'll also send them to private buyers (?)… I haven't bought from them since their web presence is utter garbage, should you order there please report back here. I want some of their stuff but don't know if thy are worth the hassle.

>>2815
The prices are fucked up, even a red 5mw I would consider expensive compared to ebay but there is no IR diode in 1450nm-1600nm range that is affordable, unless hundreds of dollars for a single diode is "affordable".
If I ever happen to be in the US I'll grab a few mitsubishi diodes from mi-lasers but that's about it.

Let me chime in and say that IMO you are discussing some total noobish soykaf up there.

1k+ waves have extremely bad trasmission rate in the air, are absorbed by almost everything, the devices are reserved for high-end science.

instead normal people go to regular electronics store(e.g. mouser) and buy dirt cheap 600+ leds, photodiodes or laser modules for longer range.

lainon, out.