Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!usc!zaphod.mps.ohio-state.edu!think!mintaka!mit-eddie!uw-beaver!ubc-cs!eric!joplin!dleblanc
From: dleblanc@joplin.mpr.ca (David LeBlanc)
Newsgroups: sci.electronics
Subject: Re: Looking for cheap visible red laser diodes
Keywords: laser diode red
Message-ID: <1977@eric.mpr.ca>
Date: 20 Dec 89 23:53:08 GMT
References: <1975@eric.mpr.ca> <2290@sactoh0.UUCP> <1237@mit-amt.MEDIA.MIT.EDU> <1989Dec20.201756.13059@athena.mit.edu>
Sender: news@eric.mpr.ca
Reply-To: dleblanc@joplin.UUCP (David LeBlanc)
Organization: Microtel Pacific Research Ltd., Burnaby, B.C., Canada
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In article <1989Dec20.201756.13059@athena.mit.edu> maddog@Athena.MIT.EDU (Matthew J Marjanovic) writes:
>
>	There are laser diodes in the watt range, however they have
>	very short, pulsed beams, unlike the continuous output types
>	usually found in CD players and the like.
>

My mistake - I feel *real* silly.  Looking through the "Laser Focus
World 1990 Buyer's Guide" I found the following visible semiconductor 
laser diodes :

@ 0.67 um, Antel Optronics Inc. model#PL-670 with a rep-rate of 200kHz,
pulse width of 0.12 ns (FAST!!!) and pulse energy of 8.4E-6 joules
(corresponds to 7E+4 Watts "peak" or 1.68 Watts average).

again @ 0.67 um but for CW operation, Holo-Spectra, Spindler&Hoyer,
Melles-Griot, NEC and LiCONiX make various laser systems.  Some of these
are turn-key systems and CW power varies from 2 to 80 mW.

My guess is that none of the above lasers come anywhere close to only
$19 per unit.

Note re. the posting in which I made my silly mistake, the Laser diode was
emitting in the IR (not the original request).  If the original poster
wants addresses, phone numbers I would be happy to oblige.

Humble apologies again,

Dave LeBlanc
dleblanc@joplin.mpr.ca