Wavelenghts of consumer laser diodes ?

Externet · Post by **Externet** » Sat May 10, 2008 8:37 pm

Hi all.
Who knows the laser wavelenghts in a typical
Red laser pointer,
green laser pointer,
CDplayer,
CDROM,
DVDROM,
DVDplayer,
CDburner,
DVDburner,
combination CDburner + DVD reader,
combination CDburner + DVDburner,
double layer DVDburner,
blue ray DVDburner,
laser printer,
And others I may forget?

Miguel

Franklin97355 · Post by **Franklin97355** » Sun May 11, 2008 12:17 pm

Here is some information on a few

MrAl · Post by **MrAl** » Mon May 12, 2008 1:51 pm

Here's what i found:

Infrared and red laser diodes are common in CD players, CD-ROMs and
DVD technology. Violet lasers are used in HD DVD and Blu-ray.

Although i have also read that Blue lasers are used in Blu-ray.

haklesup · Post by **haklesup** » Mon May 12, 2008 3:19 pm

Search Laser Diode on DigiKey and you will find 168 of them divided into at least 19 different wavelengths from 406nm to 1550nm though I didn't parse through them to divide it up.

In addition to mass storage you should find a bunch for fiber optic front end and display/imaging purposes. I doubt you will find any of the very powerful or cutting lasers at Digikey, 3.2mW was the highest they listed.

Externet · Post by **Externet** » Mon May 12, 2008 4:47 pm

Thanks, fellows.

From information gathered, seems that audio and data disks work on infrared at 780nm;
red pointers and video uses red = 635 to 650nm,
Green pointers work on 532nm
and printers use infrared ~808nm; at least the HP laserjets; from which I have a couple of canibalized lasers with large heatsinks and unable to find exact data on them.

Miguel

jwax · Post by **jwax** » Thu May 15, 2008 2:18 pm

Has anybody tried this?
http://lifehacker.com/software/diy/turn ... 287252.php

Externet · Post by **Externet** » Thu May 15, 2008 4:45 pm

Hello John... Youtube has a couple of dozen of those.

Mi next toy is
http://www.airbuddy.com/id47.htm
but with this animal:
http://www.dealextreme.com/details.dx/sku.12341

He he ...

Miguel

jwax · Post by **jwax** » Fri May 16, 2008 6:37 pm

Sweet! As Franklin97355's link to wiki points out, a laser over 5 mW is in IIIb territory and is regulated. I've not heard of any legal battles yet, but the things are dangerous. Damaged vision, fire starting, accident-causing are just a few potential hazards. Be careful!
I've seen a 90 mW red on a foggy night, and it is impressive!

www.shooterstechnology.com

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Wavelenghts of consumer laser diodes ?

Wavelenghts of consumer laser diodes ?

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