Question about Dvd Rom laser

[geo-r]

Hi,laser funs ;D
i have an old sony dvd rom and i wonder how many mw is the laser.To check the wavelength i open it and supply it.I see a red beam so i thing that is 632nm red laser.
Anyone know the power of the diode?Is it worth to take it apart and make it a laser pointer?
Thanks.

 

[trueHOUSE]

give us more info about the dvd rom is it 8x,16x...., is it sony ,LG ..etc

 

[geo-r]

give us more info about the dvd rom is it 8x,16x...., is it sony ,LG ..etc

As i say before its a Sony DVD-ROM only model no.DDU 1621.On the box it write Class 1 Laser Product.I am not sure about if its 8x or 16x

 

[Switch]

Hi,laser funs ;D
i have an old sony dvd rom and i wonder how many mw is the laser.To check the wavelength i open it and supply it.I see a red beam so i thing that is 632nm red laser.
Anyone know the power of the diode?Is it worth to take it apart and make it a laser pointer?
Thanks.

It's definetly not 632nm.A diode laser would be more like 650nm.HeNe's are 632nm.
It's a 16X DVD Writer.The diode could probably reach 150mW safely(and have a relatively long lifetime) if powered properly.

 

[geo-r]

[quote author=geo-r link=1204189768/0#0 date=1204189768]Hi,laser funs ;D
i have an old sony dvd rom and i wonder how many mw is the laser.To check the wavelength i open it and supply it.I see a red beam so i thing that is 632nm red laser.
Anyone know the power of the diode?Is it worth to take it apart and make it a laser pointer?
Thanks.

It's definetly not 632nm.A diode laser would be more like 650nm.HeNe's are 632nm.
It's a 16X DVD Writer.The diode could probably reach 150mW safely(and have a relatively long lifetime) if powered properly.[/quote]
No i dont thing so that is 150mw.As i said is DVD ROM only not DVD WRITER!!!

 

[Switch]

Oooooh...I see...it's actually a 16x reader.Well thats not going to be of much use.It's probably around 1mW

 

[geo-r]

Oooooh...I see...it's actually a 16x reader.Well thats not going to be of much use.It's probably around 1mW

1mw only?I expect 20-25mw!

 

[phenol]

and i expect around 5-7mw

 

[Switch]

[quote author=Switch link=1204189768/0#5 date=1204200544]Oooooh...I see...it's actually a 16x reader.Well thats not going to be of much use.It's probably around 1mW

1mw only?I expect 20-25mw![/quote]

I don't think you're gonna be able to get that much.Reader diodes are pretty weak.

 

[goldfingerfif]

If it says class 1 then probably 1mw. We are using class 3b lasers 5-500mw class 4 is 500+mw

 

[geo-r]

If it says class 1 then probably 1mw.  We are using class 3b lasers 5-500mw class 4 is 500+mw

You are right but the class 1 is the power hit the dvd disc not the diode as i read from a net.the diode mabe is much more :-?

 

[goldfingerfif]

[quote author=goldfingerfif link=1204189768/0#9 date=1204205192]If it says class 1 then probably 1mw.  We are using class 3b lasers 5-500mw class 4 is 500+mw

You are right but the class 1 is the power hit the dvd disc not the diode as i read from a net.the diode mabe is much more :-?[/quote]

If it is ONLY a reader then you might get much more, like 5mw.

@ DVD/CD reader only diodes!

 

[Switch]

Class 1 refers to the drive itself.Even though it's a laser product, no radiation is actually emited from it, so it's class 1.The diode itself is class 3b, maybe reader diodes are only class 3a

 

[geo-r]

Class 1 refers to the drive itself.Even though it's a laser product, no radiation is actually emited from it, so it's class 1.The diode itself is class 3b, maybe reader diodes are only class 3a

So is useless!! :'(

 

[chido]

Yup, it's useless. ;D