[Laser] How much power

[Chuck Hast]

On 6/6/07, Jim Moss <n9jim-6 at pacbell.net> wrote:
> >From what I recall,
> The IR diodes in old R/W optical drives were 20-30mW output.
> I seem to recall reading an article about the newer R/W CD drives at about 35mW.
>
> Not sure about DVD R/W drives.
>
Jim,
The faster they write the higher the power. I have seen data that indicate
that some of the CD w diodes are now 70mw. The DVD diodes are higher
yet, I have seen powers reported as high as 250mw for really fast writers.
I have measured diodes at 100mw for some slower units.

-- 
Chuck Hast  -- KP4DJT --
To paraphrase my flight instructor;
"the only dumb question is the one you DID NOT ask resulting in my going
out and having to identify your bits and pieces in the midst of torn
and twisted metal."