Re: My 3D printer software done - lasers!

Keep in mind that high power diode lasers probably won't be be single
mode, so the beam size can be large, several mm long. Thus they
won't focus to a point.
The fiber coupler is used to transform the long (several mm), narrow
(a few µm) laser output to a more useful circular shape.

The crucial thing is the fiber diameter and NA.

regards-
Elliot

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "vrsculptor" <vrsculptor@...>
wrote:

>
> 17 watt, 915nm laser diode, fiber coupled output, $199 starting,

$300

> buy it now on ebay. I've seen higher wattages.
>
> <http://cgi.ebay.com/SDL-64-00032-SDL-6460-17-Watt-Laser-Diode-

NIB_W0QQitemZ280121150923QQihZ018QQcategoryZ109452QQssPageNameZWDVWQQrdZ1QQcmdZViewItem>

>
> I think 915nm is long enough for glass lenses? Don't know about
> plastic absorbsion at that nm.
>
> Roger
>