WO2004015471A2 - Programmable photonic device and method - Google Patents

Programmable photonic device and method Download PDF

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Publication number
WO2004015471A2
WO2004015471A2 PCT/US2003/021684 US0321684W WO2004015471A2 WO 2004015471 A2 WO2004015471 A2 WO 2004015471A2 US 0321684 W US0321684 W US 0321684W WO 2004015471 A2 WO2004015471 A2 WO 2004015471A2
Authority
WO
WIPO (PCT)
Prior art keywords
tunable
functional elements
set forth
optical
providing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2003/021684
Other languages
French (fr)
Other versions
WO2004015471A3 (en
Inventor
Floyd A. Fazi, Jr.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lockheed Martin Corp
Original Assignee
Lockheed Corp
Lockheed Martin Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lockheed Corp, Lockheed Martin Corp filed Critical Lockheed Corp
Priority to AU2003256489A priority Critical patent/AU2003256489A1/en
Publication of WO2004015471A2 publication Critical patent/WO2004015471A2/en
Publication of WO2004015471A3 publication Critical patent/WO2004015471A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/35—Optical coupling means having switching means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/35—Optical coupling means having switching means
    • G02B6/3598—Switching means directly located between an optoelectronic element and waveguides, including direct displacement of either the element or the waveguide, e.g. optical pulse generation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/35—Optical coupling means having switching means
    • G02B6/351—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements
    • G02B6/3512—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements the optical element being reflective, e.g. mirror
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/35—Optical coupling means having switching means
    • G02B6/354—Switching arrangements, i.e. number of input/output ports and interconnection types
    • G02B6/3544—2D constellations, i.e. with switching elements and switched beams located in a plane
    • G02B6/3546—NxM switch, i.e. a regular array of switches elements of matrix type constellation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/35—Optical coupling means having switching means
    • G02B6/354—Switching arrangements, i.e. number of input/output ports and interconnection types
    • G02B6/3554—3D constellations, i.e. with switching elements and switched beams located in a volume
    • G02B6/3556—NxM switch, i.e. regular arrays of switches elements of matrix type constellation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/35—Optical coupling means having switching means
    • G02B6/3594—Characterised by additional functional means, e.g. means for variably attenuating or branching or means for switching differently polarized beams
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/43—Arrangements comprising a plurality of opto-electronic elements and associated optical interconnections

Definitions

  • the present invention relates generally to the field of optical devices and, in particular, to a programmable logic device and method.
  • Programmable logic devices or gate arrays are becoming an increasingly popular design tool because of the configurable nature of the digital circuits.
  • One example of a programmable logic device contains areas of programmable logic elements deposited on the device in a two-dimensional array of intersecting rows and columns. These devices generally contain a core set of electrical logic building blocks which may be programmed by a user. Thus, different circuits may be integrated into a single chip allowing a common design to be manufactured.
  • a programmable logic device includes a plurality of optical functional elements and at least one programmable signal path coupled to at least one of the optical functional elements.
  • the programmable signal path is adapted to convey an optical signal along the signal path.
  • the device also includes at least one directional element adapted to direct the optical signal to the signal path.
  • a method for manufacturing a programmable logic device includes providing a plurality of optical functional elements and forming a programmable signal path adapted to convey an optical signal to at least one of the functional elements.
  • the method also includes providing a directional element adapted to direct the optical signal to the signal path.
  • FIGURE 1 is a diagram illustrating a programmable photonic device in accordance with an embodiment of the present invention.
  • FIGURE 2 is a diagram illustrating a programmable photonic device in accordance with another embodiment of the present invention.
  • FIGURE 1 is a diagram illustrating a programmable photonic device 10 in accordance with an embodiment of the present invention.
  • device 10 includes one or more optical interconnect functional elements 12.
  • functional elements 12 comprise an electrical/optical converter 14, a splitter 16, a filter 18, a coupler 20, an amplifier 22, an attenuator 24, and a laser 26.
  • functional elements 12 may also include other types of elements for performing a desired function or operation in connection with an optical signal.
  • functional elements 12 may also comprise a tunable filter 28, a tunable splitter 30, a tunable laser 32, a tunable coupler 34, a tunable amplifier 36, a tunable attenuator 38, and a tunable electrical/optical converter 40. Accordingly, it should also be understood that functional elements 12 may comprise other types of tunable or adjustable elements for performing a desired function or operation in connection with an optical signal.
  • Device 10 may also include one or more logic elements 42.
  • Device 10 also comprises a programmable interconnect network 44 having one or more programmable signal paths 46 for conveying optical signals within device 10.
  • each element 12 and/or element 42 may be coupled to another element 12 and/or element 42 or to an input or output of device 10 via one or more paths 46.
  • Optical signals may be directed to paths 46 from external sources via one or more directional elements 50.
  • Directional elements 50 may comprise a lens 52, a collimator 54, or any combination thereof, or other optical elements used to focus or otherwise direct optical signals in a desired direction.
  • a user of device 10 may program network 44 to route optical signals along one or more desired signal paths 46.
  • Network 44 may be configured to accommodate repeated programming operations or may be configured such that only a single programming operation may be performed.
  • network 44 may be programmed to direct optical signals to or from one or more functional elements 12.
  • lasers 26 and/or tunable lasers 32 may be used to generate an optical signal within device 10.
  • Other functional elements 12 of device 10 may be used to perform a desired function on an optical signal, such as splitting the optical signal into a plurality of discrete signals, attenutaing an optical signal, coupling a plurality of optical signals into a single optical signal, filtering a desired portion of the optical signal, and/or other operations associated with an optical signal.
  • FIGURE 2 is a diagram illustrating device 10 in accordance with an embodiment of the present invention.
  • programmable interconnect network 44 includes one or more switches 60 for variably directing an optical signal 62 to a desired path 46.
  • switches 60 may comprise a micro-electric-mechanical system switch 64 to program paths 46 between elements 12 and/or elements 42.
  • Switches 60 may also comprise one or more reflective elements 66 for programming paths 46 between elements 12 and/or elements 42.
  • reflective elements 66 may comprise one or more pop-up mirrors 68 or other programmable optical reflective or guiding elements for conveying optical signal 62 along a desired path 46.
  • Device 10 may be configured as a single-layer structure or as a multi-layer sandwich structure. Accordingly, network 44 may be configured using vias or other connecting structure to route optical signals 62 between various layers of device 10. Additionally, device 10 may be configured such that paths 46 comprise silicon grooves or other structural routing channels formed on device 10. However, paths 46 may also comprise "free-space" pathways for routing optical signals 62. For example, one or more reflective elements 66 may be used to form a "free-space" path 46 on device 10 for routing optical signals 62 between elements 12 and/or elements 42.
  • the present invention provides a programmable photonic device 10 accommodating a variety of design applications by allowing a user of device 10 to rapidly design optical systems to meet a variety of requirements. Additionally, the present invention provides a programmable photonic device 10 that may be used in a variety of optical applications, such as, but not limited to, fiber optic bus interface modules, fiber optic sensor interfaces, and telecommunications switches.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Integrated Circuits (AREA)
  • Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)

Abstract

A programmable photonic device includes a plurality of optical functional elemen ts(12) and at least one programmable signal path(46) coupled to at least one of the optical functional elements. The signal path is adapted to convey an optical signal along the signal path. The device also includes at least one directional element(50) adapted to direct the optical signal to the signal path.

Description

PROGRAMMABLE PHOTONIC DEVICE AND METHOD
TECHNICAL FIELD OF THE INVENTION
The present invention relates generally to the field of optical devices and, in particular, to a programmable logic device and method.
BACKGROUND OF THE INVENTION
Programmable logic devices or gate arrays are becoming an increasingly popular design tool because of the configurable nature of the digital circuits. One example of a programmable logic device contains areas of programmable logic elements deposited on the device in a two-dimensional array of intersecting rows and columns. These devices generally contain a core set of electrical logic building blocks which may be programmed by a user. Thus, different circuits may be integrated into a single chip allowing a common design to be manufactured.
The development of photonic integrated circuits has also led to several different designs of optical circuits. These optical circuits may also be incorporated into application specific integrated circuits allowing a common design to be manufactured. However, there remains a limited market for these photonic integrated circuit designs. Thus, producing these photonic devices remains generally cost prohibitive.
SUMMARY OF THE INVENTION
A need has arisen to solve the high costs and limited design availability associated with optical application specific photonic integrated circuits.
In accordance with an embodiment of the present invention, a programmable logic device includes a plurality of optical functional elements and at least one programmable signal path coupled to at least one of the optical functional elements. The programmable signal path is adapted to convey an optical signal along the signal path. The device also includes at least one directional element adapted to direct the optical signal to the signal path.
In accordance with another embodiment of the invention, a method for manufacturing a programmable logic device includes providing a plurality of optical functional elements and forming a programmable signal path adapted to convey an optical signal to at least one of the functional elements.
The method also includes providing a directional element adapted to direct the optical signal to the signal path.
BRIEF DESCRIPTION OF THE DRAWINGS
For a more complete understanding of the present invention, the objects and advantages thereof, reference is now made to the following descriptions taken in connection with the accompanying drawings in which: FIGURE 1 is a diagram illustrating a programmable photonic device in accordance with an embodiment of the present invention; and
FIGURE 2 is a diagram illustrating a programmable photonic device in accordance with another embodiment of the present invention.
DETAILED DESCRIPTION OF THE DRAWINGS
The preferred embodiment of the present invention and its advantages are best understood by referring to FIGURES 1 and 2 of the drawings, like numerals being used for like and corresponding parts of the various drawings. FIGURE 1 is a diagram illustrating a programmable photonic device 10 in accordance with an embodiment of the present invention. In the illustrated embodiment, device 10 includes one or more optical interconnect functional elements 12. For example, in the illustrated embodiment, functional elements 12 comprise an electrical/optical converter 14, a splitter 16, a filter 18, a coupler 20, an amplifier 22, an attenuator 24, and a laser 26. However, it should be understood that functional elements 12 may also include other types of elements for performing a desired function or operation in connection with an optical signal. In this embodiment, functional elements 12 may also comprise a tunable filter 28, a tunable splitter 30, a tunable laser 32, a tunable coupler 34, a tunable amplifier 36, a tunable attenuator 38, and a tunable electrical/optical converter 40. Accordingly, it should also be understood that functional elements 12 may comprise other types of tunable or adjustable elements for performing a desired function or operation in connection with an optical signal. Device 10 may also include one or more logic elements 42.
Device 10 also comprises a programmable interconnect network 44 having one or more programmable signal paths 46 for conveying optical signals within device 10. For example, each element 12 and/or element 42 may be coupled to another element 12 and/or element 42 or to an input or output of device 10 via one or more paths 46. Optical signals may be directed to paths 46 from external sources via one or more directional elements 50. Directional elements 50 may comprise a lens 52, a collimator 54, or any combination thereof, or other optical elements used to focus or otherwise direct optical signals in a desired direction.
In operation, a user of device 10 may program network 44 to route optical signals along one or more desired signal paths 46. Network 44 may be configured to accommodate repeated programming operations or may be configured such that only a single programming operation may be performed. As described above, network 44 may be programmed to direct optical signals to or from one or more functional elements 12. For example, lasers 26 and/or tunable lasers 32 may be used to generate an optical signal within device 10. Other functional elements 12 of device 10 may be used to perform a desired function on an optical signal, such as splitting the optical signal into a plurality of discrete signals, attenutaing an optical signal, coupling a plurality of optical signals into a single optical signal, filtering a desired portion of the optical signal, and/or other operations associated with an optical signal. FIGURE 2 is a diagram illustrating device 10 in accordance with an embodiment of the present invention. As illustrated in FIGURE 2, programmable interconnect network 44 includes one or more switches 60 for variably directing an optical signal 62 to a desired path 46. For example, switches 60 may comprise a micro-electric-mechanical system switch 64 to program paths 46 between elements 12 and/or elements 42. Switches 60 may also comprise one or more reflective elements 66 for programming paths 46 between elements 12 and/or elements 42. For example, reflective elements 66 may comprise one or more pop-up mirrors 68 or other programmable optical reflective or guiding elements for conveying optical signal 62 along a desired path 46.
Device 10 may be configured as a single-layer structure or as a multi-layer sandwich structure. Accordingly, network 44 may be configured using vias or other connecting structure to route optical signals 62 between various layers of device 10. Additionally, device 10 may be configured such that paths 46 comprise silicon grooves or other structural routing channels formed on device 10. However, paths 46 may also comprise "free-space" pathways for routing optical signals 62. For example, one or more reflective elements 66 may be used to form a "free-space" path 46 on device 10 for routing optical signals 62 between elements 12 and/or elements 42.
Accordingly, the present invention provides a programmable photonic device 10 accommodating a variety of design applications by allowing a user of device 10 to rapidly design optical systems to meet a variety of requirements. Additionally, the present invention provides a programmable photonic device 10 that may be used in a variety of optical applications, such as, but not limited to, fiber optic bus interface modules, fiber optic sensor interfaces, and telecommunications switches.

Claims

WHAT IS CLAIMED IS:
1. A programmable photonic device, comprising: a plurality of optical functional elements; at least one programmable signal path coupled to at least one of the optical functional elements and adapted to convey an optical signal along the signal path; and at least one directional element adapted to direct the optical signal to the signal path.
2. The device of claim 1, wherein at least one of the optical functional elements comprises a tunable optical functional element.
3. The device of claim 1, wherein the programmable signal path comprises at least one reflective element.
4. The device as set forth in claim 3, wherein the reflective element comprises a pop-up mirror.
5. The device as set forth in claim 1, wherein at least one of the functional elements comprises a tunable laser.
6. The device as set forth in claim 1, wherein at least one of the functional elements comprises a tunable filter.
7. The device as set forth in claim 1, wherein at least one of the functional elements comprises an electrical/optical converter.
8. The device as set forth in claim 1, wherein the programmable signal path comprises at least one micro-electric-mechanical switch.
9. The device as set forth in claim 1, wherein at least one of the functional elements comprises a splitter.
10. The device as set forth in claim 1, wherein at least one of the functional elements comprises a filter.
11. The device as set forth in claim 1, wherein at least one of the functional elements comprises a coupler.
12. The device as set forth in claim 1, wherein at least one of the functional elements comprises an amplifier.
13. The device as set forth in claim 1, wherein at least one of the functional elements comprises an attenuator.
14. The device as set forth in claim 1, wherein at least one of the functional elements comprises a tunable splitter.
15. The device as set forth in claim 1, wherein at least one of the functional elements comprises a tunable coupler.
16. A programmable photonic device comprising: means for directing an optical signal to a signal path; means for performing an optical interconnect function on the optical signal; and means for programming the signal path to convey the optical signal to the function means.
17. The device as set forth in claim 16, wherein the function means comprises a tunable means for performing an optical interconnect function.
18. The device as set forth in claim 17, the tunable function means selected from the group consisting of a tunable splitter, a tunable laser, a tunable filter, a tunable electrical/optical converter, a tunable coupler, a tunable amplifier, and a tunable attenuator.
19. The device as set forth in claim 16, wherein the means for programming comprises at least one pop-up mirror.
20. The device as set forth in claim 16, wherein the means for programming comprises at least one micro-electric-mechanical switch.
21. The device as set forth in claim 16, wherein the function means comprises a splitter.
22. The device as set forth in claim 16, wherein the function means comprises an amplifier.
23. The device as set forth in claim 16, wherein the function means comprises a filter.
24. The device as set forth in claim 16, wherein the function means comprises a coupler.
25. The device as set forth in claim 16, wherein the function means comprises an electrical/optical converter.
26. A method for manufacturing a programmable photonic device, comprising: providing a plurality of optical functional elements; forming a programmable signal path adapted to convey an optical signal to at least one of the functional elements; and providing a directional element adapted to direct the optical signal to the signal path.
27. The method of Claim 26, wherein forming the programmable signal path comprises providing at least one reflective element.
28. The method of Claim 27, wherein providing at least one reflective element comprises providing at least one pop-up mirror.
29. The method of claim 26, wherein providing the functional elements comprises providing at least one tunable optical functional element.
30. The method of claim 29, wherein providing at least one tunable element comprises selecting at least one tunable element from the group consisting of a tunable splitter, a tunable laser, a tunable filter, a tunable electrical/optical converter, a tunable coupler, a tunable amplifier, and a tunable attenuator.
31. The method of claim 26, wherein providing the functional elements comprises providing at least one splitter.
32. The method of claim 26, wherein providing the functional elements comprises providing at least one filter.
33. The method of claim 26, wherein providing the functional elements comprises providing at least one coupler.
34. The method of claim 26, wherein providing the functional elements comprises providing at least one amplifier.
35. The method of Claim 26, wherein providing the functional elements comprises providing at least one electrical/optical converter.
PCT/US2003/021684 2002-08-09 2003-07-10 Programmable photonic device and method Ceased WO2004015471A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003256489A AU2003256489A1 (en) 2002-08-09 2003-07-10 Programmable photonic device and method

Applications Claiming Priority (2)

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US10/215,771 2002-08-09
US10/215,771 US20040027644A1 (en) 2002-08-09 2002-08-09 Programmable photonic device and method

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WO2004015471A2 true WO2004015471A2 (en) 2004-02-19
WO2004015471A3 WO2004015471A3 (en) 2004-04-22

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Cited By (2)

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US8627240B1 (en) 2012-06-28 2014-01-07 International Business Machines Corporation Integrated design environment for nanophotonics
WO2020104716A1 (en) 2018-11-19 2020-05-28 Universitat Politècnica De València Method for configuring and optimising programmable photonic devices based on mesh structures of integrated optical wave guides

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US9161105B2 (en) * 2012-04-11 2015-10-13 Hewlett-Packard Development Company, L.P. Routing optical signals
US9094135B2 (en) * 2013-06-10 2015-07-28 Freescale Semiconductor, Inc. Die stack with optical TSVs
US9435952B2 (en) 2013-06-10 2016-09-06 Freescale Semiconductor, Inc. Integration of a MEMS beam with optical waveguide and deflection in two dimensions
US10230458B2 (en) 2013-06-10 2019-03-12 Nxp Usa, Inc. Optical die test interface with separate voltages for adjacent electrodes
US9442254B2 (en) 2013-06-10 2016-09-13 Freescale Semiconductor, Inc. Method and apparatus for beam control with optical MEMS beam waveguide
US9810843B2 (en) 2013-06-10 2017-11-07 Nxp Usa, Inc. Optical backplane mirror
US9766409B2 (en) 2013-06-10 2017-09-19 Nxp Usa, Inc. Optical redundancy
CN112817891B (en) 2021-02-04 2022-10-18 联合微电子中心有限责任公司 Programmable optical chip and terminal
CN113391446B (en) * 2021-06-16 2022-06-14 上海大学 Synthetic design method of programmable photonic integrated circuit

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EP0547594B1 (en) * 1991-12-18 1998-03-11 Texas Instruments Incorporated Compact programmable optical parallel processing system
US6256430B1 (en) * 1998-11-23 2001-07-03 Agere Systems Inc. Optical crossconnect system comprising reconfigurable light-reflecting devices
US6396975B1 (en) * 2000-01-21 2002-05-28 Jds Uniphase Corporation MEMS optical cross-connect switch
US6668108B1 (en) * 2000-06-02 2003-12-23 Calient Networks, Inc. Optical cross-connect switch with integrated optical signal tap

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US8627240B1 (en) 2012-06-28 2014-01-07 International Business Machines Corporation Integrated design environment for nanophotonics
US8683393B2 (en) 2012-06-28 2014-03-25 International Business Machines Corporation Integrated design environment for nanophotonics
WO2020104716A1 (en) 2018-11-19 2020-05-28 Universitat Politècnica De València Method for configuring and optimising programmable photonic devices based on mesh structures of integrated optical wave guides
US12013569B2 (en) 2018-11-19 2024-06-18 Universitat Politecnica De Valencia (Upv) Method of configuration and optimisation of programmable photonic devices

Also Published As

Publication number Publication date
AU2003256489A1 (en) 2004-02-25
US20040027644A1 (en) 2004-02-12
WO2004015471A3 (en) 2004-04-22

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