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US7630598: Apparatus and method for providing an optical cross-connect

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Filing Information

Inventor(s) Betty Lise Anderson · David J. Rabb ·
Assignee(s) The Ohio State University ·
Attorney/Agent(s) Calfee, Halter & Griswold LLP ·
Primary Examiner Jennifer Doan ·
Application Number US11801105
Filing date 05/08/2007
Issue date 12/08/2009
Prior Publication Data
Predicted expiration date 05/08/2027
U.S. Classifications 385/18  · 359/838  · 385/16  · 385/15  ·
International Classifications G02B626  ·
Kind CodeB2
Related U.S. Application DataRELATED APPLICATIONS
This application claims all of the benefits of, and priority to, U.S. Provisional Application Ser. No. 60/799,425, filed on May 10, 2006: May 10, 2006. Application Ser. No. 60/799,425 is titled Apparatus and Method For Providing an Optical Cross-Connect and is incorporated herein in its entirety.
19 Claims, 8 Drawings


Abstract

An optical cross-connect for shifting the location of one or more light beams in and array of light beams is provided. An exemplary embodiment of an optical cross connect includes an input array for inputting an array of light beams; at least a portion of a spherical lens; a plurality of microelectrical mechanical devices; and a plurality of mirrors. The microelectrical mechanical devices are located at a distance away from the spherical lens that is approximately equal to the focal point of the spherical lens. The microelectrical mechanical devices include a plurality of individually controllable pixels for directing one or more light beams in the array of light beams through the at least a portion of a spherical lens and onto two or more mirrors. The two or more mirrors may be located at a distance away from the spherical lens that is approximately equal to the focal point of the spherical lens and are located generally opposite of one or more microelectrical mechanical devices. Each of the two or more mirrors may be positioned at different angles with respect to one another so that light beams incident each mirror are shifted differently with respect to one another and land on a subsequent microelectrical mechanical devices. Some exemplary embodiments also provide for grouping of the light beams prior to shifting their location, and regrouping the light beams after shifting their locations.

Independent Claims | See all claims (19)

  1. 1. An optical cross-connect device for shifting the location of one or more light beams in an array of light beams comprising: an input array for inputting an array of light beams; a lens; a plurality of microelectrical-mechanical devices; and a plurality of mirrors; wherein the microelectrical-mechanical devices are located at a distance away from the principal planes of the lens that is approximately equal to the focal length of the lens; wherein the microelectrical-mechanical devices comprise controllable pixels for directing one or more light beams in the array of light beams through the lens and onto two or more of the plurality of mirrors; wherein the two or more of the plurality of mirrors are located at a distance away from the principal planes of the lens that is approximately equal to the focal length of the lens and are located generally opposite of one or more microelectrical-mechanical devices; wherein each of the two or more of the plurality of mirrors are positioned at different angles with respect to one another so that light beams incident on each mirror are shifted differently with respect to one another as they land on a subsequent microelectrical-mechanical devices.
  2. 10. A method of shifting the location of one or more light beams in a light beam array comprising: bouncing an array of light beams off of a microelectrical mechanical device; adjusting one or more pixels on the microelectrical mechanical device so that light beams incident on the one or more pixels are directed through at least a portion of a spherical lens onto at least a first mirror or a second mirror; shifting one or more of the light beams to a different location as a function of whether the pixels on the microelectrical mechanical device directs the light beams to the first mirror or the second mirror; repeating any of the previous steps until the light beams desired to be shifted have been shifted to a desired position; and separating the array of light beams into two or more groups prior to shifting one or more light beams to a desired position.
  3. 11. A method of shifting the location of one or more light beams in a light beam array comprising: bouncing an array of light beams off of a microelectrical mechanical device; adjusting one or more pixels on the microelectrical mechanical device so that light beams incident on the one or more pixels are directed through at least a portion of a spherical lens onto at least a first mirror or a second mirror; shifting one or more of the light beams to a different location as a function of whether the pixels on the microelectrical mechanical device directs the light beams to the first mirror or the second mirror; repeating any of the previous steps until the light beams desired to be shifted have been shifted to a desired position; and reconsolidating the two or more groups of light beams after shifting one or more light beams to a desired position.
  4. 12. A method of shifting the location of one or more light beams in a light beam array comprising: bouncing an array of light beams off of a microelectrical mechanical device; adjusting one or more pixels on the microelectrical mechanical device so that light beams incident on the one or more pixels are directed through at least a portion of a spherical lens onto at least a first mirror or a second mirror; shifting one or more of the light beams to a different location as a function of whether the pixels on the microelectrical mechanical device directs the light beams to the first mirror or the second mirror; repeating any of the previous steps until the light beams desired to be shifted have been shifted to a desired position; and using a signal to collectively drive one or more columns or rows of the pixels in each group.
  5. 13. An apparatus for shifting the location of one or more light beams in a light beam array comprising: means for bouncing an array of light beams off of a microelectrical mechanical device; means for adjusting one or more pixels on the microelectrical mechanical device so that light beams incident on the one or more pixels are directed through at least a portion of a lens onto at least a first mirror or a second mirror, wherein the microelectrical mechanical device, the lens, and at least the first mirror or the second mirror are arranged as a Fourier cell; and means for shifting one or more of the light beams to a different location as a function of whether the pixels on the microelectrical mechanical devices directed the light beams to the first mirror or the second mirror.
  6. 15. An apparatus for shifting the location of one or more light beams in a light beam array comprising: means for bouncing an array of light beams off of a microelectrical mechanical device; means for adjusting one or more pixels on the microelectrical mechanical device so that light beams incident on the one or more pixels are directed through at least a portion of a lens onto at least a first mirror or a second mirror; means for shifting one or more of the light beams to a different location as a function of whether the pixels on the microelectrical mechanical devices directed the light beams to the first mirror or the second mirror; and means for reconsolidating the two or more groups of light beams into a single array of light beams.
  7. 16. An apparatus for shifting the location of one or more light beams in a light beam array comprising: means for bouncing an array of light beams off of a microelectrical mechanical device; means for adjusting one or more pixels on the microelectrical mechanical device so that light beams incident on the one or more pixels are directed through at least a portion of a lens onto at least a first minor or a second mirror; means for shifting one or more of the light beams to a different location as a function of whether the pixels on the microelectrical mechanical devices directed the light beams to the first mirror or the second mirror; and means for driving one or more of the pixels.
  8. 17. An apparatus for shifting the location of one or more light beams in a light beam array comprising: means for bouncing an array of light beams off of a microelectrical mechanical device; means for adjusting one or more pixels on the microelectrical mechanical device so that light beams incident on the one or more pixels are directed through at least a portion of a lens onto at least a first mirror or a second mirror; and means for shifting one or more of the light beams to a different location as a function of whether the pixels on the microelectrical mechanical devices directed the light beams to the first mirror or the second mirror, wherein the shifting means shifts the one or more light beams as a function of the adjustment to corresponding pixels.

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