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INTEGRATED OPTICS SCANNER

IP.com Disclosure Number: IPCOM000023226D
Original Publication Date: 1977-Feb-28
Included in the Prior Art Database: 2004-Mar-29
Document File: 2 page(s) / 198K

Publishing Venue

Xerox Disclosure Journal

Abstract

An array of synchronously coupled waveguide pairs (#1 and #2) is provided on a common substrate. Each waveguide pair includes its own associated electrode. A voltage signal (e.g. 10 volts) from an electronic switching cir-cuit selectively applied to the upper electrodes causes a shift of the light beam from one waveguide to the other. In one embodiment the array is used as an output scanner. A cylindrical lens couples a light source into a common portion of the lower waveguides-. The light beam travels down the lower waveguides and is reflected or absorbed resulting in no light output. Conversely, the light beam can be switched into selected ones of the upper waveguides and coupled out as plural spots of light depending upon activation of the appropriate electrodes.

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XEROX DISCLOSURE JOURNAL

INTEGRATED OPTICS SCANNER
ProposedThomas M. Holladay Classification

U.S. Cl. 350/96 WG
mt. Ci. G02b 5/14

An array of synchronously coupled waveguide pairs (#1 and
#2) is provided on a common substrate. Each waveguide
pair includes its own associated electrode. A voltage
signal (e.g. 10 volts) from an electronic switching cir-
cuit selectively applied to the upper electrodes causes
a shift of the light beam from one waveguide to the other.
In one embodiment the array is used as an output scanner.
A cylindrical lens couples a light source into a common
portion of the lower waveguides~. The light beam travels
down the lower waveguides and is reflected or absorbed
resulting in no light output. Conversely, the light beam
can be switched into selected ones of the upper waveguides
and coupled out as plural spots of light depending upon
activation of the appropriate electrodes.

Volume 2 Number 1 January/February 1977

LIGHT SOURCE

FIG., P18.2

49

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