Optomechanical components for use as optical interconnects

• US 6,034,821 A
• Filed: 09/05/1997
• Issued: 03/07/2000
• Est. Priority Date: 09/05/1997
• Status: Expired due to Fees

• Current Assignee: NEC Corporation
• Original Assignee: NEC Research Institute, Inc. (NEC Corporation)
• Inventors: Neilson, David T., Schenfeld, Eugen, Kim, Tae J.
• Primary Examiner(s): Shafer, Ricky D.
• Application Number:
  US08/925,822
• Time in Patent Office: 914 Days
• Field of Search: 359/431, 359/495, 359/496, 359/626, 359/633, 359/636, 359/638, 359/640, 359/831, 359/833, 359/834, 359/837, 359/618, 359/629, 385/31, 385/36, 385/147, 385/136, 385/137, 385/135
• US Class Current: 359/618
• CPC Class Codes: G02B 6/2817 using reflective elements to split or combine optical signals
• CPC Class Codes: G02B 6/4232 using the surface tension of fluid solder to align the elements, e.g. solder bump techniques flip-chip mounting techniques in assembly of semiconductor devices H01L24/81
• CPC Class Codes: G02B 6/4249 comprising arrays of active devices and fibres
• CPC Class Codes: G02B 6/4292 the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements
• CPC Class Codes: G02B 6/43 Arrangements comprising a plurality of opto-electronic elements and associated optical interconnections

Abstract

Optical components that are designed to be coupled together in modular fashion to form an optical network. The components are shaped so that a plurality of components can be coupled together to form a light cube. The components are provided with mating means to permit easy coupling. The preferred form of component is a right-angled triangular prism that can be coupled together with a similar prism to form a cube.

Claims

1. An optical component for use as a modular building block in an optical network including a plurality of optical components, the optical component comprising:

at least one prism-shaped element of a material that is optically transparent and amenable to being shaped to a high degree of accuracy and including a pair of substantially similar input and output surfaces and a third surface, at least one of the input and output surfaces including a central inset opening; and

a combination of female and male mating means, separate from said central inset opening, provided on one or more of the surfaces of each prism-shaped element to permit the coupling together with a high degree of alignment of each prism-shaped element with at least one other said prism-shaped element such that light may be accurately directed between the at least one prism-shaped element and at least one other coupled prism-shaped element.

2. The optical component of claim 1, wherein at least one of the input and output surfaces includes in the inset an array of microlenses focused to the third surface.

3. The optical component of claim 1, wherein the third surface supports an array of beam directing means for redirecting incident light in a prescribed pattern.

4. The optical component of claim 1, wherein the inset of the at least one of the input and output surfaces includes an array of microlenses focused on the third surface, and the third surface includes an array of beam directing means for redirecting incident light in a prescribed pattern and aligned with the array of microlenses.

5. The optical component of claim 1, wherein the prism-shaped element is a right-angled triangular prism.

6. The optical component of claim 1, wherein the optical component includes at least first and second prism-shaped elements, and wherein respective hypotenuse surfaces of the two prism-shaped elements are positioned opposite one another, the two prism-shaped elements being coupled together by their female and male mating means.

7. The optical component of claim 6, wherein at least one of the input and output surfaces of one of the at least two prism-shaped elements supports an array of transmitting or receiving means for, respectively, transmitting light out of, or receiving light directed into, the optical component.

8. The optical component of claim 6, wherein an input surface of a first of the at least two prism-shaped elements includes an array of transmitting means for transmitting light out of the first prism-shaped element, and an output surface of a second of the at least two prism-shaped elements includes an array of receiving means for receiving light directed into the prism-shaped element from the transmitting means of the first prism-shaped element.

9. The optical component of claim 6, wherein the third surface of each prism-shaped element supports an array of beam directing means for redirecting incident light in a prescribed pattern.

10. An optical network comprising a plurality of optical components of claim 1 coupled together in a modular assembly.

11. The optical network of claim 10, further comprising means for supporting an array of optical fibers, said means being V-grooved in a manner to match V-grooves in walls of the central inset opening in one of the surfaces of the prism-shaped element.

12. The optical network of claim 11, wherein the means for supporting an array of optical fibers includes spring clip means for coupling to the prism-shaped element.

13. The optical network of claim 11, wherein the optical fibers of the array have a free end of increasing diameter.

14. The optical network of claim 13, wherein the free ends of the fibers are positioned to couple radiatively with microlenses supported on the hypotenuse surface of a right angled triangular prism-shaped element.

15. An information processing system comprising a plurality of optical components of claim 1 coupled together in a modular assembly.

16. An optical network comprising:

a plurality of prism-shaped elements of a material that is optically transparent and amenable to being shaped to a high degree of accuracy and each of said elements including a pair of substantially similar input and output surfaces and a third surface, at least one of the input and output surfaces including a central inset opening; and

each of said elements having a combination of female and male mating means, separate from said central inset opening provided on one or more of the surfaces for coupling together said plurality of elements with a high degree of alignment such that light may be accurately directed between coupled prism-shaped elements.

17. The optical network of claim 16, further comprising a plug-in module having female and male mating means provided on a surface coupling said plug-in module to one of said elements.

18. An optical component for use as a modular building block in an optical network including a plurality of said optical components, the optical component comprising:

at least one prism-shaped element of a material that is optically transparent and amenable to being shaped to a high degree of accuracy and including a pair of substantially similar input and output surfaces and a third surface, at least one of the input and output surfaces including a central inset opening, wherein at least one of the input and output surfaces includes in the inset an array of microlenses focused to the third surface; and

a combination of female and male mating means provided on one or more of the surfaces of each prism-shaped element to permit the coupling together with a high degree of alignment of each prism-shaped element with at least one other said prism-shaped element.

19. The optical component of claim 18, wherein the third surface supports an array of beam directing means for redirecting incident light in a prescribed pattern.

20. The optical component of claim 18, wherein the inset of the at least one of the input and output surfaces includes an array of microlenses focused on the third surface, and the third surface includes an array of beam directing means for redirecting incident light in a prescribed pattern and aligned with the array of microlenses.

21. The optical component of claim 18, wherein the prism-shaped element is a right-angled triangular prism, wherein the optical component includes at least first and second prism-shaped elements, and wherein respective hypotenuse surfaces of the two prism-shaped elements are positioned opposite one another, the two prism-shaped elements being coupled together by their female and male mating means, and wherein at least one of the input and output surfaces of one of the at least two prism-shaped elements supports an array of transmitting or receiving means for, respectively, transmitting light out of, or receiving light directed into, the optical component.

22. The optical component of claim 18, wherein the prism-shaped element is a right-angled triangular prism, wherein the optical component includes at least first and second prism-shaped elements, and wherein an input surface of a first of the at least two prism-shaped elements includes an array of transmitting means for transmitting light out of the first prism-shaped element, and an output surface of a second of the at least two prism-shaped elements includes an array of receiving means for receiving light directed into the prism-shaped element from the transmitting means of the first prism-shaped element.

23. The optical component of claim 18, wherein the prism-shaped element is a right-angled triangular prism, wherein the optical component includes at least first and second prism-shaped elements, and wherein the third surface of each prism-shaped element supports an array of beam directing means for redirecting incident light in a prescribed pattern.

24. An optical network comprising a plurality of optical components of claim 18, coupled together in a modular assembly, further comprising means for supporting an array of optical fibers, said means being V-grooved in a manner to match V-grooves in walls of the central inset opening in one of the surfaces of the prism-shaped element.

25. The optical network of claim 24, wherein the means for supporting an array of optical fibers includes spring clip means for coupling to the prism-shaped element.

26. The optical network of claim 24, wherein the optical fibers of the array have a free end of increasing diameter.