IP Library › Granted Patent US 12,601,950
Granted Patent B2
US 12,601,950 · App. 18/088,369 · Granted Apr 14, 2026

System, method and apparatus for non-mechanical optical and photonic beam steering

Inventors: Paul F. McManamon (Dayton, OH); Abtin Ataei (Oakwood, OH)
Assignee: Exciting Technology LLC
G02F1/29G02B26/0808G02F1/0136G02F1/292G02F1/3133G02F1/3138G02B5/32G02F2201/12G02F2203/02G02F2203/07G02F2203/24
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Quick Facts
Patent No.
US 12,601,950
App. No.
18/088,369
Granted
Apr 14, 2026
Kind
B2
Abstract

An example system includes a high-side electrode layer having a first number of electrical members alternated with, and electrically coupled to adjacent ones of a second number of electrical members, where either the first number of electrical members or the second number of electrical members are discrete electrodes, and the other one of the first or second number of electrical members are resistors. Accordingly, the high-side electrode layer is formed from alternating discrete electrodes and resistors. The example system further includes a low-side electrode layer, and an electro-optic (EO) layer having an EO active material at least partially positioned between the high-side electrode layer and the low-side electrode layer, thereby forming a number of active cells of the EO layer.

Claims (84)

1 . An optical steering system, comprising:

a high-side electrode layer comprising:

a first plurality of electrical members alternated with, and electrically coupled to adjacent ones of a second plurality of electrical members;

wherein one of the first plurality of electrical members or the second plurality of electrical members comprises a plurality of discrete electrodes; and

wherein the other one of the first plurality of electrical members or the second plurality of electrical members comprises a plurality of resistors;

a low-side electrode layer;

an electro-optic (EO) layer comprising an EO active material at least partially interposed between the high-side electrode layer and the low-side electrode layer, thereby forming a plurality of active cells of the EO layer; and

a controller, comprising:

a steering request circuit structured to interpret a steering request value;

a steering configuration circuit structured to determine a plurality of EO command values in response to the steering request value, wherein the plurality of EO command values correspond to a half-wave voltage profile, and wherein the half-wave voltage profile comprises:

a first voltage value for a last electrode of a first phase delay progression, the last electrode comprising one of the plurality of discrete electrodes;

a second voltage value for a first electrode of a second phase delay progression, the first electrode comprising one of the plurality of discrete electrodes; and

wherein the first voltage value and the second voltage value have opposite signs; and

a steering implementation circuit structured to provide a plurality of voltage commands in response to the plurality of EO command values.

2 . The optical steering system of claim 1 , wherein a first terminating electrical member at a first end of the high-side electrode layer comprises a first one of the plurality of discrete electrodes.

3 . The optical steering system of claim 2 , wherein a second terminating electrical member at a second end of the high-side electrode layer comprises a second one of the plurality of discrete electrodes.

4 . The optical steering system of claim 1 , wherein the first voltage value and the second voltage value have equal magnitudes.

5 . The optical steering system of claim 1 , wherein the first voltage value and the second voltage value have magnitudes that differ, within a noise voltage value, by a voltage difference corresponding to a π phase delay.

6 . The optical steering system of claim 1 , wherein the first voltage value and the second voltage value have magnitudes that differ by a voltage difference corresponding to an nπ phase delay, wherein n comprises an integer value between 1 and 4, inclusive.

7 . The optical steering system of claim 1 , wherein the opposite signs of the first voltage value and the second voltage value are determined relative to a nominal voltage.

8 . The optical steering system of claim 1 , wherein the first voltage value and the second voltage value are symmetrically distributed about a 0π phase shift.

9 . The optical steering system of claim 1 , wherein the low-side electrode layer comprises a second plurality of discrete electrodes.

10 . The optical steering system of claim 1 , wherein the low-side electrode layer comprises a continuous electrode.

11 . The optical steering system of claim 1 , wherein the low-side electrode layer comprises a reflective layer.

12 . An optical steering apparatus, comprising:

a first steering layer structured to adjust an incident angle of an electromagnetic (EM) beam on a second steering layer, the first steering layer interposed between an EM source and the second steering layer;

the second steering layer comprising:

a high-side electrode layer comprising:

a first plurality of electrical members alternated with, and electrically coupled to adjacent ones of a second plurality of electrical members;

wherein one of the first plurality of electrical members or the second plurality of electrical members comprises a plurality of discrete electrodes; and

wherein the other one of the first plurality of electrical members or the second plurality of electrical members comprises a plurality of resistors;

a low-side electrode layer; and

an electro-optic (EO) layer comprising a solid EO crystal active material at least partially interposed between the high-side electrode layer and the low-side electrode layer, thereby forming a plurality of active cells of the EO layer.

13 . The optical steering apparatus of claim 12 , wherein the first steering layer comprises a discrete steering element structured to steer the incident EM beam at a selected one of a first angle or a second angle.

14 . The optical steering apparatus of claim 13 , further comprising:

a first volume hologram interposed between the first steering layer and the second steering layer, the first volume hologram structured to increase the selected first angle to an increased first angle; and

a second volume hologram interposed between the first steering layer and the second steering layer, the second volume hologram structured to increase the selected second angle to an increased second angle.

15 . The optical steering apparatus of claim 14 , wherein the first steering layer comprises a polarization birefringence grating.

16 . The optical steering apparatus of claim 15 , wherein the EM source further comprises a selectively polarized EM source structured to provide the incident EM beam to the first steering layer at a selected one of a first polarization corresponding to the first angle, or a second polarization corresponding to the second angle.

17 . The optical steering apparatus of claim 12 , wherein the first steering layer comprises a thin beam steering device.

18 . The optical steering apparatus of claim 17 , further comprising:

a first volume hologram interposed between the first steering layer and the second steering layer, the first volume hologram structured to increase the selected first angle to an increased first angle; and

a second volume hologram interposed between the first steering layer and the second steering layer, the second volume hologram structured to increase the selected second angle to an increased second angle.

19 . The optical steering apparatus of claim 17 , wherein the first steering layer utilizes a half-wave voltage profile.

20 . The optical steering apparatus of claim 12 , wherein the second steering layer utilizes a half-wave voltage profile.

21 . The optical steering apparatus of claim 12 , further comprising:

a steering controller, comprising:

a steering request circuit structured to interpret a steering request value;

a steering configuration circuit structured to determine a plurality of EO command values in response to the steering request value; and

wherein the second steering layer is responsive to the plurality of EO command values to provide a corresponding phase delay progression across the second steering layer.

22 . The optical steering apparatus of claim 17 , further comprising:

a steering controller, comprising:

a steering request circuit structured to interpret a steering request value;

a steering configuration circuit structured to determine a plurality of EO command values in response to the steering request value;

wherein the first steering layer is responsive to at least a first portion of the plurality of EO command values to provide a corresponding phase delay progression across the thin beam steering device; and

wherein the second steering layer is responsive to at least a second portion of the plurality of EO command values to provide a corresponding phase delay progression across the second steering layer.

23 . The optical steering apparatus of claim 12 , wherein the second steering layer further comprises a fishtail booster associated with the high-side electrode layer, low-side electrode layer, and EO layer.

24 . The optical steering apparatus of claim 17 , wherein the thin beam steering device comprises at least one device selected from the devices consisting of: a castle arrangement device; a castle pro arrangement device; a chess arrangement device; a chess pro arrangement device; an alternating resistor arrangement device; or a half-wave voltage profile device.

25 . An optical steering system, comprising:

a high-side electrode layer comprising:

a first plurality of electrical members alternated with, and electrically coupled to adjacent ones of a second plurality of electrical members;

wherein one of the first plurality of electrical members or the second plurality of electrical members comprises a plurality of discrete electrodes; and

wherein the other one of the first plurality of electrical members or the second plurality of electrical members comprises a plurality of resistors;

a low-side electrode layer; and

an electro-optic (EO) layer comprising a solid EO crystal active material at least partially interposed between the high-side electrode layer and the low-side electrode layer, thereby forming a plurality of active cells of the EO layer.

26 . The optical steering system of claim 25 , wherein a first terminating electrical member at a first end of the high-side electrode layer comprises a first one of the plurality of discrete electrodes.

27 . The optical steering system of claim 26 , wherein a second terminating electrical member at a second end of the high-side electrode layer comprises a second one of the plurality of discrete electrodes.

28 . The optical steering system of claim 25 , further comprising:

a controller, comprising:

a steering request circuit structured to interpret a steering request value;

a steering configuration circuit structured to determine a plurality of EO command values in response to the steering request value, and wherein the plurality of EO command values correspond to a half-wave voltage profile; and

a steering implementation circuit structured to provide a plurality of voltage commands in response to the plurality of EO command values.

29 . The optical steering system of claim 28 , wherein the half-wave voltage profile comprises:

a first voltage value for a last electrode of a first phase delay progression, the last electrode comprising one of the plurality of discrete electrodes;

a second voltage value for a first electrode of a second phase delay progression, the first electrode comprising one of the plurality of discrete electrodes; and

wherein the first voltage value and the second voltage value have opposite signs.

30 . The optical steering system of claim 29 , wherein the first voltage value and the second voltage value have equal magnitudes.

31 . The optical steering system of claim 29 , wherein the first voltage value and the second voltage value have magnitudes that differ, within a noise voltage value, by a voltage difference corresponding to a π phase delay.

32 . The optical steering system of claim 29 , wherein the first voltage value and the second voltage value have magnitudes that differ by a voltage difference corresponding to an nπ phase delay, wherein n comprises an integer value between 1 and 4, inclusive.

33 . The optical steering system of claim 29 , wherein the opposite signs of the first voltage value and the second voltage value are determined relative to a nominal voltage.

34 . The optical steering system of claim 29 , wherein the first voltage value and the second voltage value are symmetrically distributed about a 0π phase shift.

35 . The optical steering system of claim 25 , wherein the low-side electrode layer comprises a second plurality of discrete electrodes.

36 . The optical steering system of claim 25 , wherein the low-side electrode layer comprises a continuous electrode.

37 . The optical steering system of claim 25 , wherein the low-side electrode layer comprises a reflective layer.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 30, 2022
From: MCMANAMON, PAUL F.; ATAEI, ABTIN
To: EXCITING TECHNOLOGY LLC
Reel/Frame 062244/0276 →
Continuity (14)
Continuation PCTUS2021027986 · Apr 19, 2021
Continuation In Part PCTUS2020064071 · Dec 9, 2020
Continuation In Part 16999815 · Aug 21, 2020
Continuation In Part 16999815 · Aug 21, 2020
Continuation In Part 16916731 · Jun 30, 2020
Continuation In Part 16916731 · Jun 30, 2020
Continuation PCTUS2019057616 · Oct 23, 2019
Continuation PCTUS2019023915 · Mar 25, 2019
Continuation In Part PCTUS2019023915 · Mar 25, 2019
Continuation In Part 15796055 · Oct 27, 2017
Provisional Application 62945720 · Dec 9, 2019
Provisional Application 62868286 · Jun 28, 2019
Provisional Application 62749487 · Oct 23, 2018
Related Publication 20230168560A1 · Jun 1, 2023
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