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03-04-2015, 01:10 AM #1
 Class 1 Laser Join Date: Mar 2015 Location: Georgia USA Posts: 65 Rep Power: 3
LoveDemBurningLAZERZ
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Diode question (can be any color)

This May have been posted before idk but can u guys tell me where I can get at least 50mw (100mw preferred) diodes above from electronic u can find around the house? And a link or something to a Very cheap yet durable module for them. (Small size)

03-04-2015, 01:14 AM #2
 Class 3B Laser Join Date: Jan 2014 Location: Iraq Posts: 4,290 Rep Power: 2141
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Re: Diode question (can be any color)

Google laser diodes from CDROM burners. Here's one result:

Laser diodes from CD-RW drives can cut and burn!
__________________

http://www.lexellaser.com/techinfo_wavelengths.htm

Laser Safety:
http://www.laserpointersafety.com/index.html

Angular Size Calculator; use with diode angle of radiation specification to calculate the needed lens diameter for a given FL:
http://www.1728.org/angsize.htm

Divergence to spot size calculator: http://tinyurl.com/spotsize - 1 mRad is about .057 degrees which from the earth would expand to be ~10% the diameters of the moon or sun at their distances.

Divergence Calculator: http://www.pseudonomen.com/lasers/ca...alculator.html - Measure your lasers beamwidth at 1 foot & then at a further distance to calculate the divergence.

Online calculator to determine spot intensity at different mRad's & powers @ distances: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: http://www.ophiropt.com/laser-measur...ity-calculator

How to build a laser beam expander to reduce divergence: http://tinyurl.com/BeamExpander

RHD's Relative Perceived Brightness Calculator. Compare brightness @nm: http://lsrtools.1apps.com/relativebrightness

YAG Power Calculator, i.e. convert ns @ mJ to peak power in watts http://tinyurl.com/YAG-Pulse

The forum costs more to run than donations received, if you wish to help click this link: http://laserpointerforums.com/donations.htm

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03-04-2015, 01:20 AM #3
 Class 1 Laser Join Date: Mar 2015 Location: Georgia USA Posts: 65 Rep Power: 3
LoveDemBurningLAZERZ
Class 1 Laser

Join Date: Mar 2015
Location: Georgia USA
Posts: 65
Rep Power: 3
Re: Diode question (can be any color)

Thanks. Is this kinda the same to
DVD burner ones? Also wheres a place where I can get Very cheap but very durable modules with good lens?

03-04-2015, 01:27 AM #4
 Class 3B Laser Join Date: Jan 2014 Location: Iraq Posts: 4,290 Rep Power: 2141
Class 3B Laser

Join Date: Jan 2014
Location: Iraq
Posts: 4,290
Rep Power: 2141
Re: Diode question (can be any color)

A BluRay DVD burner will have a 405nm laser diode in it, probably another IR or red laser diode too, I'm not really up on this subject enough to direct you more than I already have, but others here are and might chime in. Might see if you can find a stack of old CD or DVD burners cheap somewhere, maybe a computer repair shop, sometimes the diode blows, sometimes the mechanism has a problem, but you can probably find some good used ones which are slow to todays standards cheap.

Read up on safety first before messing with these laser diodes, get some laser rated safety goggles if you do end up doing this.
__________________

http://www.lexellaser.com/techinfo_wavelengths.htm

Laser Safety:
http://www.laserpointersafety.com/index.html

Angular Size Calculator; use with diode angle of radiation specification to calculate the needed lens diameter for a given FL:
http://www.1728.org/angsize.htm

Divergence to spot size calculator: http://tinyurl.com/spotsize - 1 mRad is about .057 degrees which from the earth would expand to be ~10% the diameters of the moon or sun at their distances.

Divergence Calculator: http://www.pseudonomen.com/lasers/ca...alculator.html - Measure your lasers beamwidth at 1 foot & then at a further distance to calculate the divergence.

Online calculator to determine spot intensity at different mRad's & powers @ distances: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: http://www.ophiropt.com/laser-measur...ity-calculator

How to build a laser beam expander to reduce divergence: http://tinyurl.com/BeamExpander

RHD's Relative Perceived Brightness Calculator. Compare brightness @nm: http://lsrtools.1apps.com/relativebrightness

YAG Power Calculator, i.e. convert ns @ mJ to peak power in watts http://tinyurl.com/YAG-Pulse

The forum costs more to run than donations received, if you wish to help click this link: http://laserpointerforums.com/donations.htm

_______

Last edited by Alaskan; 03-04-2015 at 01:30 AM.

03-04-2015, 01:32 AM #5
 Class 1 Laser Join Date: Mar 2015 Location: Georgia USA Posts: 65 Rep Power: 3
LoveDemBurningLAZERZ
Class 1 Laser

Join Date: Mar 2015
Location: Georgia USA
Posts: 65
Rep Power: 3
Re: Diode question (can be any color)

Thanks I didn't think of a computer repair shop. there's like 2-3 where I live. But where's a place to get very cheap but durable modules for them?

03-04-2015, 01:37 AM #6
 Class 3B Laser Join Date: Jan 2014 Location: Iraq Posts: 4,290 Rep Power: 2141
Class 3B Laser

Join Date: Jan 2014
Location: Iraq
Posts: 4,290
Rep Power: 2141
Re: Diode question (can be any color)

Ebay has lots: aixiz | eBay

You might be better off ordering from ebay than building your own.
__________________

http://www.lexellaser.com/techinfo_wavelengths.htm

Laser Safety:
http://www.laserpointersafety.com/index.html

Angular Size Calculator; use with diode angle of radiation specification to calculate the needed lens diameter for a given FL:
http://www.1728.org/angsize.htm

Divergence to spot size calculator: http://tinyurl.com/spotsize - 1 mRad is about .057 degrees which from the earth would expand to be ~10% the diameters of the moon or sun at their distances.

Divergence Calculator: http://www.pseudonomen.com/lasers/ca...alculator.html - Measure your lasers beamwidth at 1 foot & then at a further distance to calculate the divergence.

Online calculator to determine spot intensity at different mRad's & powers @ distances: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: http://www.ophiropt.com/laser-measur...ity-calculator

How to build a laser beam expander to reduce divergence: http://tinyurl.com/BeamExpander

RHD's Relative Perceived Brightness Calculator. Compare brightness @nm: http://lsrtools.1apps.com/relativebrightness

YAG Power Calculator, i.e. convert ns @ mJ to peak power in watts http://tinyurl.com/YAG-Pulse

The forum costs more to run than donations received, if you wish to help click this link: http://laserpointerforums.com/donations.htm

_______

03-04-2015, 09:02 AM #7
 Class 3B Laser Join Date: May 2013 Location: Snohomish County Washington, US Posts: 3,800 Rep Power: 1086
Pi R Squared
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Re: Diode question (can be any color)

You need a special tool and a vise to press a diode in a module. You can also buy the modules from the AixiZ web site: www.aixiz.net you can use the back part of the module to press a diode but it's better to have the diode press tool, they come in 3 sizes. You can buy them and most anything else you need here: Survival Laser USA Home DTR's Laser Shop also sells the modules in all 3 sizes: https://sites.google.com/site/dtrlpf/

Alan
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PLTB450B 450nm 1913mW G2 lens
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03-04-2015, 02:30 PM #8
 Class 1 Laser Join Date: Mar 2015 Location: Georgia USA Posts: 65 Rep Power: 3
LoveDemBurningLAZERZ
Class 1 Laser

Join Date: Mar 2015
Location: Georgia USA
Posts: 65
Rep Power: 3
Re: Diode question (can be any color)

Thanks. When I get a DVD burner diode I'll get a module for it. How much voltage do these require? I'm guessing not way too much. And what driver do u suggest that would fit a small budget?

03-04-2015, 04:00 PM #9
 Class 3B Laser Join Date: Jan 2014 Location: Iraq Posts: 4,290 Rep Power: 2141
Class 3B Laser

Join Date: Jan 2014
Location: Iraq
Posts: 4,290
Rep Power: 2141
Re: Diode question (can be any color)

search ebay. the voltage and current required is different for different diodes. Just use the search term "burning laser diode". You should be able to find lots of them, even kits. PM me please with an email addy if you don't mind, I'd like to make you aware of some of the safety issues as well as make sure your dad knows what you are planning. It appears you are under 18, this opens up a can of worms for me personally.
__________________

http://www.lexellaser.com/techinfo_wavelengths.htm

Laser Safety:
http://www.laserpointersafety.com/index.html

Angular Size Calculator; use with diode angle of radiation specification to calculate the needed lens diameter for a given FL:
http://www.1728.org/angsize.htm

Divergence to spot size calculator: http://tinyurl.com/spotsize - 1 mRad is about .057 degrees which from the earth would expand to be ~10% the diameters of the moon or sun at their distances.

Divergence Calculator: http://www.pseudonomen.com/lasers/ca...alculator.html - Measure your lasers beamwidth at 1 foot & then at a further distance to calculate the divergence.

Online calculator to determine spot intensity at different mRad's & powers @ distances: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: http://www.ophiropt.com/laser-measur...ity-calculator

How to build a laser beam expander to reduce divergence: http://tinyurl.com/BeamExpander

RHD's Relative Perceived Brightness Calculator. Compare brightness @nm: http://lsrtools.1apps.com/relativebrightness

YAG Power Calculator, i.e. convert ns @ mJ to peak power in watts http://tinyurl.com/YAG-Pulse

The forum costs more to run than donations received, if you wish to help click this link: http://laserpointerforums.com/donations.htm

_______

Last edited by Alaskan; 03-04-2015 at 04:07 PM.

03-04-2015, 04:36 PM #10
 Class 3R Laser Join Date: Nov 2014 Location: Netherlands Posts: 1,092 Rep Power: 220
gozert
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Re: Diode question (can be any color)

I'm not sure how good you are with electronics, but before you build your first laser, you may want to read a few guides. It would be a waste to ruin a build of some common mistake.

Complete guide to building a laser: The, "I want to build a laser", Thread

A guide to drivers: How laser diode drivers work; An Explanatory Thread
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New here? Check this out: All in one thread for beginning hobbyists

03-07-2015, 04:18 PM #11
 Class 2 Laser Join Date: May 2013 Location: Santa Catarina/Brazil Posts: 345 Rep Power: 83
alessnilsen
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Re: Diode question (can be any color)

What model of drives do you got? I have some experience with DVD-RW diodes, maybe I can help too.

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