Path: utzoo!mnetor!uunet!husc6!uwvax!speedy!cad
From: cad@speedy.cs.wisc.edu (Owner of VLSI software)
Newsgroups: sci.electronics
Subject: Re: LASER diodes
Message-ID: <5479@spool.cs.wisc.edu>
Date: 28 Mar 88 23:54:48 GMT
References: <5451@spool.cs.wisc.edu| <2547@ihuxv.ATT.COM>
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In article <2547@ihuxv.ATT.COM>, tedk@ihuxv.ATT.COM (Kekatos) writes:
> I wrote:
...
> |200ma is my guess (a friend used about 1.2A and it slowly
> |got dimmer).
> 
> I didn't think that the laser diodes were VISIBLE. Are you
> sure that it is visible?? I think it is Infra-Red 
> Ted G. Kekatos

Well it was visible, although I suspect that most of the energy
was in the infrared spectrum.  (I though lasers were supposed
to be monochromatic)?

The collumator (sp?) and semi-reflective mirror may have
shifted the frequency of the laser to be barely visible
it was never bright (never close to an LED), but if we
turned out all the lights and waited for our eyes to
adjust, we could just make out a little spot of red
on a sheet of paper.

Chris Schumann			chris@leyden.cs.wisc.edu