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From: The_Praiodanish on 20 Feb 2010 09:31
Hi there,
I've got a spectra physics 0129-2653 Rev. D laser diode a few days ago
but I don't have any specs about the operating current / threshold
current; I only know the wavelength is 808nm and Pout is about 30
watts.
Does any one have more detailed information on this diode?

Thanks, Thomas
From: Samuel M. Goldwasser on 20 Feb 2010 19:10
The_Praiodanish <Thomas_Gulden(a)yahoo.de> writes:

> Hi there,
> I've got a spectra physics 0129-2653 Rev. D laser diode a few days ago
> but I don't have any specs about the operating current / threshold
> current; I only know the wavelength is 808nm and Pout is about 30
> watts.
> Does any one have more detailed information on this diode?
>
> Thanks, Thomas

Forwarded to alt.lasers and sci.optics.

Typically, a 30 W diode will have a threshold of 8-12 amps with
30 W at 35-50 A depending on slope efficiency. The only way to know
exactly without measuring it (assuming the diode is good) would be to
get the original test sheet from Spectra-Physics.

--
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Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
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| Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html

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From: Laser Ben on 21 Feb 2010 03:05
On Feb 20, 4:10 pm, s...(a)repairfaq.org (Samuel M. Goldwasser) wrote:
> The_Praiodanish <Thomas_Gul...(a)yahoo.de> writes:
> > Hi there,
> > I've got a spectra physics 0129-2653 Rev. D laser diode a few days ago
> > but I don't have any specs about the operating current / threshold
> > current; I only know the wavelength is 808nm and Pout is about 30
> > watts.
> > Does any one have more detailed information on this diode?
>
> > Thanks, Thomas
>
> Forwarded to alt.lasers and sci.optics.
>
> Typically, a 30 W diode will have a threshold of 8-12 amps with
> 30 W at 35-50 A depending on slope efficiency.  The only way to know
> exactly without measuring it (assuming the diode is good) would be to
> get the original test sheet from Spectra-Physics.
>
> --
>     sam | Sci.Electronics.Repair FAQ:http://www.repairfaq.org/
>  Repair | Main Table of Contents:http://www.repairfaq.org/REPAIR/
> +Lasers | Sam's Laser FAQ:http://www.repairfaq.org/sam/lasersam.htm
>         | Mirror Sites:http://www.repairfaq.org/REPAIR/F_mirror.html
>
> Important: Anything sent to the email address in the message header above is
> ignored unless my full name AND either lasers or electronics is included in the
> subject line.  Or, you can contact me via the Feedback Form in the FAQs..

That's only rated for 12-13W from the fiber. The diode inside is a 20W
unit. Max current should be 25-27A.

-Ben
From: The_Praiodanish on 21 Feb 2010 15:10
On 21 Feb., 09:05, Laser Ben <downhillrider...(a)gmail.com> wrote:
> On Feb 20, 4:10 pm, s...(a)repairfaq.org (Samuel M. Goldwasser) wrote:
>
>
>
> Hi there,


thanks a lot for your information. I expected the diode to be the 40W
model but 20 W should be ok for now...

Thomas
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