US3645603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light modulation in optic fiber
Assignee: Individual
•
Filing: 1969-09-24
•
Granted: 1972-02-29
•
Expires: 1989-09-24
Abstract
Abstract Light is modulated in an optic fiber by applying compression across diameters of the fiber angularly displaced from one another and axially displaced from one another along the fiber. Independent phase modulation is achieved by varying the compression applied across the diameters equally and with the same direction. Independent amplitude modulation is achieved by varying the compression applied across the diameters equally and with opposite polarity directions.
Inventors
- 👤 Luther W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:59
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/0128; G02F1/0131; G02F1/0134
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
75 words
A light-modulating system comprising an optic fiber, means to introduce into one end of said fiber a polarized beam of coherent light, first compressing means to apply variable compression across a first diameter of said fiber, second compressing means to apply variable compression across a second diameter substantially angularly displaced from said first diameter, and an analyzer positioned to receive light transmitted through Said fiber including means responsive to light polarized at a predetermined angle.
Claim 2
Dependent Claim
75 words
A light-modulating system comprising an optic fiber, means to introduce into one end of said fiber a polarized beam of coherent light, first compressing means to apply variable compression across a first diameter of said fiber, second compressing means to apply variable compression across a second diameter substantially angularly displaced from said first diameter, and an analyzer positioned to receive light transmitted through Said fiber including means responsive to light polarized at a predetermined angle.
Claim 3
Dependent Claim
19 words
A light-modulating system as recited in claim 1 wherein said second diameter is displaced 90* from said first diameter.
Claim 4
Dependent Claim
27 words
A light-modulating system as recited in claim 1 wherein said second means applies compression to said optic fiber axially displaced along said fiber from said first means.
Claim 5
Dependent Claim
34 words
A light-modulating system as recited in claim 1 wherein there is provided means to vary the compression applied by said first and second compressing means by equal amounts and with the same variation polarity.
Claim 6
Dependent Claim
32 words
A light modulating system as recited in claim 1 wherein there is provided means to vary the compression applied by said first and second compressing means equally and with opposite variation polarity.
Claim 7
Dependent Claim
58 words
A light-modulating system as recited in claim 1 wherein there is provided means to vary a component of the compression applied by said first and second compressing means equally and with the same variation polarity and means to vary a component of the compression applied by said first and second compressing means equally and with opposite variation polarity.
Claim 8
Dependent Claim
68 words
A light-modulating system comprising means including an optic fiber for transmitting through said optic fiber polarized coherent light in a single-dielectric mode, first compressing means to apply variable compression across a first diameter of said fiber, second compressing means for applying variable compression across a second diameter of said fiber substantially angularly displaced from said first diameter, and an analyzer positioned to receive light transmitted through said fiber.
Claim 9
Dependent Claim
68 words
A light-modulating system comprising means including an optic fiber for transmitting through said optic fiber polarized coherent light in a single-dielectric mode, first compressing means to apply variable compression across a first diameter of said fiber, second compressing means for applying variable compression across a second diameter of said fiber substantially angularly displaced from said first diameter, and an analyzer positioned to receive light transmitted through said fiber.
Claim 10
Dependent Claim
21 words
A light modulating system as recited in claim 7 wherein said second diameter is displaced from said first diameter by 90*.
Claim 11
Dependent Claim
32 words
A light-modulating system as recited in claim 8 further comprising means to vary the compression applied by said first and second compressing means by equal amounts and with the same variation polarity.
Claim 12
Dependent Claim
28 words
A light-modulating system as recited in claim 8 further comprising means to vary the compression applied by said compressing means by equal amounts and with opposite variation polarity.
Claim 13
Dependent Claim
62 words
A light-modulating system as recited in claim 8 further comprising means to vary a first component of the compression applied by said first and second compressing means by equal amounts and with the same variation polarity and means to vary a second component of the compression applied by said first and second compressing means by equal amounts and with opposite variation polarity.
Claim 14
Dependent Claim
42 words
A light-modulating system as recited in claim 1 wherein said second compressing means applies compression to said fiber at a location displaced along the axis of said fiber from the location at which said first compressing means applies compression to said fiber.
Claim 15
Independent Claim
86 words
A method of modulating the phase of coherent light comprising the steps of transmitting polarized coherent light through an optic fiber in a single-dielectric waveguide mode, applying compression across a first diameter of said fiber and across a second diameter of said fiber substantially angularly displaced from said first diameter, and changing the compression applied across said first and second diameters by the same amount and with the same variation polarity, and then transmitting the light through means responsive to light polarized at a predetermined angle.
Claim 16
Independent Claim
86 words
A method of modulating the phase of coherent light comprising the steps of transmitting polarized coherent light through an optic fiber in a single-dielectric waveguide mode, applying compression across a first diameter of said fiber and across a second diameter of said fiber substantially angularly displaced from said first diameter, and changing the compression applied across said first and second diameters by the same amount and with the same variation polarity, and then transmitting the light through means responsive to light polarized at a predetermined angle.
Claim 17
Independent Claim
89 words
A method of modulating the amplitude of coherent light comprising the steps of transmitting polarized coherent light through an optic fiber in a single-dielectric waveguide mode, applying compression across a first diameter of said fiber and across a second diameter of said fiber angularly displaced from said first diameter, changing the compression applied across said first second diameters by equal amounts with opposite variation polarity, and then transmitting the light through means responsive to light polarized at a predetermined angle displaced from said first and sEcond diameters of compression.
Claim 18
Independent Claim
89 words
A method of modulating the amplitude of coherent light comprising the steps of transmitting polarized coherent light through an optic fiber in a single-dielectric waveguide mode, applying compression across a first diameter of said fiber and across a second diameter of said fiber angularly displaced from said first diameter, changing the compression applied across said first second diameters by equal amounts with opposite variation polarity, and then transmitting the light through means responsive to light polarized at a predetermined angle displaced from said first and sEcond diameters of compression.
References Cited (Backward Citations)
US3030852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |