IP Library › Granted Patent US 12,554,078
Granted Patent B2
US 12,554,078 · App. 18/484,891 · Granted Feb 17, 2026

Optical coupling

Inventors: Hesham Taha (Jerusalem, IL); Abraham Israel (Jerusalem, IL)
Assignee: Teramount Ltd.
G02B6/4214G02B6/12002G02B6/124G02B6/13G02B6/136G02B6/262G02B6/30G02B6/4206G02B6/4228G02B6/4292G02B6/43G02B6/4238G02B6/4243G02B6/4249G02B6/4274
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Quick Facts
Patent No.
US 12,554,078
App. No.
18/484,891
Granted
Feb 17, 2026
Kind
B2
Abstract

Apparatuses, systems and methods for optical coupling, optical integration, electro-optical coupling, and electro-optical packaging are described herein. Optical couplers may comprise various optical elements (e.g., mirrors as described herein) to relax optical assembly requirements and improve producibility. Optical couplers may improve fiber-to-chip, fiber-to-fiber and chip-to-chip optical connection. Optical couplers and optical components may be used to improve integration of, connection of, and/or packaging of optical systems and/or components with electrical systems and/or components.

Claims (90)

1 . An apparatus comprising:

a photonic integrated circuit (PIC) substrate comprising:

a transmitter configured to direct, in a first direction, an optical beam, wherein the first direction is at least partially away from a reference plane in which the transmitter is disposed;

an optical element configured to:

receive, from a second direction that is at least partially towards the reference plane in which the transmitter is disposed, the optical beam;

direct, in a third direction that is at least partially away from the reference plane in which the transmitter is disposed, the optical beam; and

make available the optical beam for coupling the optical beam between an optical component and the PIC substrate.

2 . The apparatus of claim 1 , wherein the optical element comprises a curved mirror disposed on a surface of the PIC substrate.

3 . The apparatus of claim 1 , wherein the optical element comprises a curved mirror fabricated on the PIC substrate via lithography.

4 . The apparatus of claim 1 , wherein the optical element is further configured to substantially collimate the optical beam.

5 . The apparatus of claim 1 , wherein the optical element is further configured to focus the optical beam.

6 . The apparatus of claim 1 , wherein the first direction is at a first angle to the PIC substrate and wherein the third direction is at a second angle to the PIC substrate and wherein the first and second angles are substantially a same angle.

7 . The apparatus of claim 1 , wherein the optical component comprises a waveguide and wherein the directing, in the third direction, further comprises directing, towards the waveguide, the optical beam, to optically surface couple the waveguide to the PIC substrate.

8 . The apparatus of claim 1 , wherein the optical element is further configured to facilitate optical surface coupling of the optical component to the PIC substrate based on the receiving, from the second direction, the optical beam and the directing, in the third direction, the optical beam.

9 . The apparatus of claim 1 , wherein the PIC substrate further comprises a reflective element.

10 . The apparatus of claim 9 , wherein the optical element comprises a curved mirror and the reflective element comprises a substantially flat mirror, wherein the substantially flat mirror and the curved mirror are configured to relay the optical beam to facilitate optical coupling of the optical component to the transmitter of the PIC substrate.

11 . The apparatus of claim 9 , wherein the reflective element comprises a substantially flat mirror disposed on the PIC substrate at a predefined angle and at a predefined lateral distance from the optical element.

12 . The apparatus of claim 1 , wherein the transmitter further comprises an optical transceiver configured to transmit and receive optical signals.

13 . The apparatus of claim 1 , wherein the received optical beam is substantially collimated.

14 . The apparatus of claim 1 , wherein the received optical beam is diverging.

15 . The apparatus of claim 1 , wherein the optical element is further configured to interface the optical beam with an optical focusing element of a coupler connected to the optical component, and to facilitate optical coupling of the optical component and the PIC substrate based on the receiving and the directing the optical beam.

16 . The apparatus of claim 1 , wherein the optical component comprises:

a waveguide; or

a laser.

17 . An apparatus comprising:

a photonic integrated circuit (PIC) substrate comprising:

an optical receiver disposed in a reference plane; and

an optical element configured to:

receive, from a first direction, an optical beam, wherein the first direction is at least partially towards the reference plane in which the optical receiver is disposed; and

direct, in a second direction, the optical beam, wherein the second direction is at least partially away from the reference plane in which the optical receiver is disposed,

wherein the optical receiver is configured to receive, from a third direction, the optical beam, wherein the third direction is at least partially towards the reference plane in which the optical receiver is disposed.

18 . The apparatus of claim 17 , wherein the optical element comprises an optical focusing element comprising a curved mirror disposed on a surface of the PIC substrate.

19 . The apparatus of claim 17 , wherein the optical element comprises a curved mirror fabricated on the PIC substrate via lithography.

20 . The apparatus of claim 17 , wherein the optical element is further configured to substantially collimate the optical beam.

21 . The apparatus of claim 17 , wherein the optical element is further configured to focus the optical beam.

22 . The apparatus of claim 17 , wherein the first direction is at a first angle measured from a normal direction to the PIC substrate, the second direction is at a second angle measured from the normal direction to the PIC substrate, and the third direction is at a third angle measured from the normal direction to the PIC substrate, and wherein the first angle, the second angle, and the third angle are substantially a same angle.

23 . The apparatus of claim 17 , wherein the receiving, from the first direction, further comprises receiving, from a waveguide, the optical beam, to facilitate optical surface coupling of the waveguide and the PIC substrate.

24 . The apparatus of claim 17 , wherein the optical element is further configured to facilitate optical surface coupling of an optical component to the PIC substrate based on the receiving, from the first direction, the optical beam and the directing, in the second direction, the optical beam.

25 . The apparatus of claim 17 , wherein the optical receiver further comprises a reflective element.

26 . The apparatus of claim 25 , wherein the optical element comprises a curved mirror and wherein the reflective element comprises a substantially flat mirror, wherein the substantially flat mirror and the curved mirror are configured to relay the optical beam to facilitate optical coupling of an optical component to the PIC substrate.

27 . The apparatus of claim 25 , wherein the reflective element comprises a substantially flat mirror disposed on the PIC substrate at a predefined angle and at a predefined lateral distance from the optical element.

28 . The apparatus of claim 17 , wherein the optical receiver further comprises an optical transceiver configured to transmit and receive optical signals.

29 . The apparatus of claim 17 , wherein the received optical beam is substantially collimated.

30 . The apparatus of claim 17 , wherein the received optical beam is diverging.

31 . The apparatus of claim 17 , wherein the optical element is further configured to interface the optical beam with an optical focusing element of a coupler connected to an optical component, and to facilitate optical coupling of the optical component and the PIC substrate based on the receiving and the directing of the optical beam.

32 . An apparatus comprising:

an optical coupler configured to associate with a photonic integrated circuit (PIC), the optical coupler comprising:

an optical element of the optical coupler, wherein the optical element of the optical coupler is configured to:

receive, from a first direction and from an optical element of the PIC, an optical beam, wherein the first direction is at least partially away from a plane associated with an optical transmitter of the PIC; and

direct, in a second direction, the optical beam, wherein the second direction is at least partially towards the plane; and

facilitate coupling of the optical beam between an optical component and the PIC.

33 . The apparatus of claim 32 , wherein the optical element of the optical coupler comprises an optical focusing element and wherein the optical element of the PIC comprises a reflective element, and wherein the optical focusing element and the reflective element are configured to engage the optical beam to facilitate the coupling of the optical beam between the optical component and the PIC.

34 . The apparatus of claim 32 , wherein the optical element of the optical coupler comprises a curved mirror and the optical element of the PIC comprises a substantially flat mirror.

35 . The apparatus of claim 32 , wherein the optical element of the optical coupler comprises a focusing lens and the optical element of the PIC comprises a substantially flat mirror.

36 . The apparatus of claim 32 , wherein the optical coupler further comprises a substrate connected to the optical component and a spacer disposed substantially between the substrate and the PIC.

37 . The apparatus of claim 32 , wherein the optical element of the optical coupler is further configured to substantially collimate the optical beam.

38 . The apparatus of claim 32 , wherein the optical element of the optical coupler is further configured to focus the optical beam.

39 . The apparatus of claim 32 , wherein the first direction is at a first angle measured from a normal direction to a surface of the PIC and the second direction is at a second angle measured from the normal direction to the surface of the PIC, and wherein the first angle and the second angle are about a same angle.

40 . The apparatus of claim 32 , wherein the facilitating the coupling of the optical beam between the optical component and the PIC comprises facilitating optical surface coupling of the optical component to the PIC based on:

the receiving, from the first direction, the optical beam; and

the directing, in the second direction, the optical beam.

41 . The apparatus of claim 32 , wherein the directed optical beam is diverging.

42 . The apparatus of claim 32 , wherein the directed optical beam is substantially collimated.

43 . The apparatus of claim 32 , wherein the optical element of the optical coupler and the optical element of the PIC are further configured to interface the optical beam with an optical focusing element of the PIC to facilitate the optical coupling of the optical beam between the optical component and the PIC.

44 . The apparatus of claim 32 , wherein the optical component comprises:

a waveguide; or

a laser.

45 . An apparatus comprising:

an optical coupler configured to associate with a photonic integrated circuit (PIC), the optical coupler comprising:

an optical element of the optical coupler, wherein the optical element of the optical coupler is configured to:

direct, in a first direction, an optical beam, wherein first direction is at least partially towards a plane associated with the PIC;

receive, from a second direction, the optical beam, wherein the second direction is at least partially away from the plane associated with the PIC;

and

facilitate coupling of the optical beam between an optical component and the PIC.

46 . The apparatus of claim 45 , wherein the optical element of the optical coupler comprises an optical focusing element and wherein the optical element of the PIC comprises a reflective element, and wherein the optical focusing element and the reflective element are configured to engage the optical beam to facilitate the coupling of the optical beam between the optical component and the PIC.

47 . The apparatus of claim 45 , wherein the optical element of the optical coupler comprises a curved mirror and the optical element of the PIC comprises a substantially flat mirror.

48 . The apparatus of claim 45 , wherein the optical element of the optical coupler comprises a focusing lens and the optical element of the PIC comprises a substantially flat mirror.

49 . The apparatus of claim 45 , wherein the optical coupler further comprises a substrate connected to the optical component and a spacer disposed substantially between the substrate and the PIC.

50 . The apparatus of claim 45 , wherein the optical element of the optical coupler is further configured to substantially collimate the optical beam.

51 . The apparatus of claim 45 , wherein the optical element of the optical coupler is further configured to focus the optical beam.

52 . The apparatus of claim 45 , wherein the first direction is at a first angle measured from a normal direction to a surface of the PIC and wherein the second direction is at a second angle measured from the normal direction to the surface of the PIC, and wherein the first angle and the second angle are about a same angle.

53 . The apparatus of claim 45 , wherein the facilitating the coupling of the optical beam between the optical component and the PIC comprises facilitating optical surface coupling of the optical component to the PIC based on:

the directing, in the first direction, the optical beam; and

the receiving, from the second direction, the optical beam.

54 . The apparatus of claim 45 , wherein the received optical beam is diverging.

55 . The apparatus of claim 45 , wherein the received optical beam is substantially collimated.

56 . The apparatus of claim 45 , wherein the optical element of the optical coupler and the optical element of the PIC are further configured to interface the optical beam with an optical focusing element of the PIC to facilitate the optical coupling of the optical beam between the optical component and the PIC.

57 . The apparatus of claim 45 , wherein the optical component comprises:

a waveguide; or

a laser.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 8, 2024
From: TAHA, HESHAM; ISRAEL, ABRAHAM
To: TERAMOUNT LTD.
Reel/Frame 068827/0661 →
Continuity (19)
Continuation 18186601 · Mar 20, 2023
Continuation 17989303 · Nov 17, 2022
Continuation In Part 17674319 · Feb 17, 2022
Reissue 15724966 · Oct 4, 2017
Continuation In Part 14878591 · Oct 8, 2015
Continuation In Part 17645667 · Dec 22, 2021
Continuation In Part 17645673 · Dec 22, 2021
Continuation In Part 17512200 · Oct 27, 2021
Continuation In Part 17120816 · Dec 14, 2020
Continuation 16386859 · Apr 17, 2019
Continuation In Part 15797792 · Oct 30, 2017
Continuation In Part 14878591 · Oct 8, 2015
Continuation In Part 16814401 · Mar 10, 2020
Continuation In Part 16801682 · Feb 26, 2020
Provisional Application 62405476 · Oct 7, 2016
Provisional Application 62659376 · Apr 18, 2018
Provisional Application 62795837 · Jan 23, 2019
Provisional Application 62811840 · Feb 28, 2019
Related Publication 20240118505A1 · Apr 11, 2024
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