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High speed optical matrix multiplier system

Assignee: United States Department of the Navy
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Filing: 1975-05-12
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Granted: 1976-03-16
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Expires: 1995-05-12
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Abstract

Abstract Matrix-vector multiplication is accomplished by continuous wave polarized ght energy transmitted along a plurality of optical waveguides through modulation by a first optical modulator in response to a column vector type input signal and additional modulation by a second optical modulator in response to a row vector type input signal. The resultant modulated light energy outputs are received by a polarization analyzer for transforming modulations in polarization and phase to commensurate amplitude modulations. A photo-responsive storage and integrating means receives the light energy associated with each of the optical waveguides and develops a cumulative signal representative of the matrix-vector multiplication.

Inventors

  • 👤 Larry B. Stotts

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 18:08
CPC Classifications
G; G06; G06E; G06E1/00; G06E1/02; G06E1/04; G06E1/045; G06E3/00; G06E3/001

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 215 words
A high-speed optical matrix multiplier system for performing matrix-vector multiplication of the form ((A M ,N)) B N ,l = C M ,l where A M ,N .tbd.M × N, representative of a linear matrix operator B N ,l .tbd.N × l, representative of a column vector input C M ,l .tbd.M × l, representative of a column vector processed output comprising: M number of optical waveguides for transmitting continuous wave, polarized light energy; a source of continuous wave, polarized light energy arranged to transmit its output along the optical paths defined by said optical waveguides; first optical modulating means coupled to said optical waveguides and responsive to a column vector type input signal for temporally modulating the light energy transmitted; second optical modulating means coupled to said optical waveguides and responsive to a row vector type input signal for temporally modulating the light energy transmitted by said optical waveguides, a polarization analyzer for converting the resultant modulations in polarization and phase of light energy to commensurate intensity modulations for each optical waveguide; and a photo-responsive detector disposed to receive and cumulatively store the modulated light energy output of each optical waveguide over a time period synchronous with the time periods of said column vector type input signal and said row vector type input signal.
Claim 2
Dependent Claim 215 words
A high-speed optical matrix multiplier system for performing matrix-vector multiplication of the form ((A M ,N)) B N ,l = C M ,l where A M ,N .tbd.M × N, representative of a linear matrix operator B N ,l .tbd.N × l, representative of a column vector input C M ,l .tbd.M × l, representative of a column vector processed output comprising: M number of optical waveguides for transmitting continuous wave, polarized light energy; a source of continuous wave, polarized light energy arranged to transmit its output along the optical paths defined by said optical waveguides; first optical modulating means coupled to said optical waveguides and responsive to a column vector type input signal for temporally modulating the light energy transmitted; second optical modulating means coupled to said optical waveguides and responsive to a row vector type input signal for temporally modulating the light energy transmitted by said optical waveguides, a polarization analyzer for converting the resultant modulations in polarization and phase of light energy to commensurate intensity modulations for each optical waveguide; and a photo-responsive detector disposed to receive and cumulatively store the modulated light energy output of each optical waveguide over a time period synchronous with the time periods of said column vector type input signal and said row vector type input signal.
Claim 3
Dependent Claim 23 words
A high speed optical matrix multiplier system as claimed in claim 1 wherein said first and second optical modulating means are electro-optical modulators.
Claim 4
Dependent Claim 23 words
A high speed optical matrix multiplier system as claimed in claim 1 wherein said first and second optical modulating means are acousto-optical modulators.
Claim 5
Dependent Claim 25 words
A high speed optical matrix multiplier system as claimed in claim 1 wherein said source of continuous wave, polarized light energy comprises light emitting diodes.
Claim 6
Dependent Claim 24 words
A high speed optical matrix multiplier system as claimed in claim 1 wherein said source of continuous wave polarized light energy is a laser.
Claim 7
Dependent Claim 24 words
A high speed optical matrix multiplier system as claimed in claim 1 wherein said source of continuous wave, polarized light energy comprises junction lasers.

References Cited (Backward Citations)

US3484151A Cited
US3517200A Cited
US3691484A Cited
US3633993A Cited
US3766498A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-03-16 1979-09-15 1980-03-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-03-16 1983-09-15 1984-03-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-03-16 1987-09-15 1988-03-16 $7700.00 Window Closed / Lapsed

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