Path: utzoo!attcan!uunet!husc6!bbn!bbn.com!aboulang
From: aboulang@bbn.com (Albert Boulanger)
Newsgroups: sci.electronics
Subject: Re: lasermodulation
Message-ID: <32498@bbn.COM>
Date: 18 Nov 88 19:22:45 GMT
References: <132@ericom.ericsson.se>
Sender: news@bbn.COM
Reply-To: aboulanger@bbn.com
Lines: 13
In-reply-to: etxbrfa@kklm01.ericsson.se's message of 17 Nov 88 11:37:37 GMT

Heffron Eli & Sons 139 Hampshire St. in Cambridge MA, phone 617
547-4005 has a bunch of Xerox scanning laser heads (for their laser
printers) that has an acoustic-optic modulator that will do what you
want. You probably want the video-modulator pizo combo that they are
selling for $15 from the head assembly. The idea behind this device is
that the acoustic waves in the crystal act as a phase diffraction
grating which will divert the beam. The crystal is housed in a metal
box with two pinholes.


Albert Boulanger
BBN Systems & Technologies Corp.
aboulanger@bbn.com