IP Library Granted Patent US 8,979,338
Granted Patent B2
US 8,979,338 · App. 14/085,686 · Granted Mar 17, 2015

System for combining laser array outputs into a single beam carrying digital data

Inventor: John R. Joseph (Albuquerque, NM)
Assignee: TriLumina Corp.
H01S5/4025H01S5/4012F21K9/00H01L27/156G02B27/0905H01S5/423G02B6/4214G02B27/0961
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Quick Facts
Patent No.
US 8,979,338
App. No.
14/085,686
Granted
Mar 17, 2015
Kind
B2
Abstract

Embodiments comprise laser emitter devices that generate a collimated beam of light the intensity or amplitude of which may be varied so as to carry data signals at a high rate of efficiency, and that is less sensitive to alignment of the detector, and detector systems for detecting the same collimated beam and reading the data carried in the beam of light.

Claims (49)

1. A system for combining the output of semiconductor light devices to generate a single light beam, comprising:

a set of one or more semiconductor light devices configured to generate a plurality of light beams representing a first channel of data;

a binary string containing digital data, each bit from the binary string controlling a power of each of the one or more semiconductor light devices from the set of one or more semiconductor light devices, wherein an amplitude of a light beam generated by each semiconductor light device is determined by a position of a particular bit controlling each semiconductor light device, the amplitude encoding the digital data in the light beam;

a lens array positioned over the set of semiconductor light devices and configured to focus the plurality of light beams to a single focal point; and

a macro lens positioned beyond the lens array and configured to collimate the plurality of light beams into the single light beam carrying the digital data for the first channel.

2. The system as recited in claim 1 , wherein the set of one or more semiconductor light devices includes one or more laser arrays.

3. The system as recited in claim 1 , wherein the set of one or more semiconductor light devices are light emitting diodes.

4. The system as recited in claim 1 , wherein the set of one or more semiconductor light devices are resonant cavity light emitting diodes.

5. The system as recited in claim 1 , wherein the set of one or more semiconductor light devices include a plurality of laser chips.

6. The system as recited in claim 1 , wherein the plurality of light beams include a plurality of wavelengths.

7. The system as recited in claim 1 , wherein the macro lens is positioned at or near the single focal point.

8. The system as recited in claim 1 , further comprising a second lens array positioned between the lens array and the macro lens and configured to change a location of the single focal point, to extend an offset of the set of one or more semiconductor light devices, to extend an offset of the lens array, and to direct the plurality of laser beams to a wider convergence that fits a numerical aperture of the macro lens.

9. The system as recited in claim 1 , further comprising an array of detectors positioned in a far field of the single light beam, each of the detectors in the array of detectors having a different attenuation and being configured to detect multiple amplitude encoded signals from the single focal point at a rate of at least 1 gigabit per second.

10. The system as recited in claim 1 , further comprising:

an electrical channel for controlling the set of one or more semiconductor light devices and upon which the set of one or more semiconductor light devices are mounted; and

a submount upon which the electrical channel is mounted.

11. The system as recited in claim 1 , further comprising:

one or more sets of additional semiconductor light devices configured to generate one or more additional plurality of light beams representing one or more additional channels of data;

one or more additional binary strings containing digital data, each bit from the one or more additional binary strings controlling the power of each of the one or more additional semiconductor light devices from the one or more sets of additional semiconductor light devices, wherein the amplitude of the light beam generated by each additional semiconductor light device is determined by the position of the particular bit controlling each additional semiconductor light device, the amplitude encoding the digital data in the light beam; and

one or more additional lens arrays positioned over the one or more additional sets of semiconductor light devices and configured to focus the one or more additional plurality of light beams to the single focal point, wherein the macro lens is further configured to collimate the one or more additional plurality of light beams into the single light beam carrying the digital data for the one or more additional channels.

12. The system as recited in claim 11 , wherein the set of one or more semiconductor light devices and the one or more sets of additional semiconductor light devices include one or more laser arrays.

13. The system as recited in claim 11 , wherein the set of one or more semiconductor light devices and the one or more sets of additional semiconductor light devices are light emitting diodes.

14. The system as recited in claim 11 , wherein the set of one or more semiconductor light devices and the one or more sets of additional semiconductor light devices are resonant cavity light emitting diodes.

15. The system as recited in claim 11 , wherein the set of one or more semiconductor light devices and the one or more sets of additional semiconductor light devices include a plurality of laser chips.

16. The system as recited in claim 11 , wherein the plurality of light beams and the one or more additional plurality of light beams include a plurality of wavelengths.

17. The system as recited in claim 11 , wherein the macro lens is positioned at or near the single focal point.

18. The system as recited in claim 11 , further comprising a second lens array positioned between the lens array, the one or more additional lens arrays and the macro lens and configured to change a location of the single focal point, to extend an offset of the set of one or more semiconductor light devices and the one or more sets of additional semiconductor light devices, to extend an offset of the lens array and the one or more additional lens arrays, and to direct the plurality of laser beams and the one or more additional plurality of laser beams to a wider convergence that fits a numerical aperture of the macro lens.

19. The system as recited in claim 11 , further comprising an array of detectors positioned in a far field of the single light beam, each of the detectors in the array of detectors having a different attenuation and being configured to detect multiple amplitude encoded signals from the single focal point at a rate of at least 1 gigabit per second.

20. The system as recited in claim 11 , further comprising:

a first electrical channel for controlling the set of one or more semiconductor light devices and upon which the set of one or more semiconductor light devices are mounted;

one or more additional electrical channel for controlling the one or more sets of additional semiconductor light devices and upon which the one or more sets of additional semiconductor light devices are mounted; and

a submount upon which the first electrical channel and the one or more additional electrical channels are mounted.

21. The system as recited in claim 11 , wherein the set of one or more semiconductor light devices and the lens arrays are formed within a first set of one or more laser chips, wherein the one or more sets of additional semiconductor light devices and the one or more additional lens arrays are formed with one or more additional laser chips, and wherein the first set of one or more laser chips and the one or more additional laser chips are mounted to a common submount.

22. The system as recited in claim 1 , further comprising:

one or more sets of additional semiconductor light devices configured to generate one or more additional plurality of light beams representing one or more additional channels of data;

one or more additional binary strings containing digital data, each bit from the one or more additional binary strings controlling the power of each of the one or more additional semiconductor light devices from the one or more sets of additional semiconductor light devices, wherein the amplitude of the light beam generated by each additional semiconductor light device is determined by the position of the particular bit controlling each additional semiconductor light device, the amplitude encoding the digital data in the light beam; wherein the one or more additional lens arrays are further positioned over the one or more additional sets of semiconductor light devices and configured to focus the one or more additional plurality of light beams to the single focal point, and wherein the macro lens is further configured to collimate the one or more additional plurality of light beams into the single light beam carrying the digital data for the one or more additional channels.

23. The system as recited in claim 22 , wherein the set of one or more semiconductor light devices and the one or more sets of additional semiconductor light devices include one or more laser arrays.

24. The system as recited in claim 22 , wherein the set of one or more semiconductor light devices and the one or more sets of additional semiconductor light devices are light emitting diodes.

25. The system as recited in claim 22 , wherein the set of one or more semiconductor light devices and the one or more sets of additional semiconductor light devices are resonant cavity light emitting diodes.

26. The system as recited in claim 22 , wherein the set of one or more semiconductor light devices and the one or more sets of additional semiconductor light devices include a plurality of laser chips.

27. The system as recited in claim 22 , wherein the plurality of light beams and the one or more additional plurality of light beams include a plurality of wavelengths.

28. The system as recited in claim 22 , wherein the macro lens is positioned at or near the single focal point.

29. The system as recited in claim 22 , further comprising a second lens array positioned between the lens array, the one or more additional lens arrays and the macro lens and configured to change a location of the single focal point, to extend an offset of the set of one or more semiconductor light devices and the one or more sets of additional semiconductor light devices, to extend an offset of the lens array and the one or more additional lens arrays, and to direct the plurality of laser beams and the one or more additional plurality of laser beams to a wider convergence that fits a numerical aperture of the macro lens.

30. The system as recited in claim 22 , further comprising an array of detectors positioned in a far field of the single light beam, each of the detectors in the array of detectors having a different attenuation and being configured to detect multiple amplitude encoded signals from the single focal point at a rate of at least 1 gigabit per second.

31. The system as recited in claim 22 , further comprising:

a first electrical channel for controlling the set of one or more semiconductor light devices and upon which the set of one or more semiconductor light devices are mounted;

one or more additional electrical channel for controlling the one or more sets of additional semiconductor light devices and upon which the one or more sets of additional semiconductor light devices are mounted; and

a submount upon which the first electrical channel and the one or more additional electrical channels are mounted.

32. The system as recited in claim 22 , wherein the set of one or more semiconductor light devices and the lens arrays are formed within a first set of one or more laser chips, wherein the one or more sets of additional semiconductor light devices and the one or more additional lens arrays are formed with one or more additional laser chips, and wherein the first set of one or more laser chips and the one or more additional laser chips are mounted to a common submount.

Assignments (7)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 22, 2025
From: LUMENTUM OPERATIONS LLC
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 074974/0001 →
RELEASE OF SECURITY INTEREST Recorded Dec 30, 2020
From: COMERICA BANK
To: TRILUMINA CORP.
Reel/Frame 054777/0801 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 3, 2020
From: TRILUMINA CORP.
To: LUMENTUM OPERATIONS LLC
Reel/Frame 054254/0788 →
SECURITY INTEREST Recorded Jul 30, 2020
From: TRILUMINA CORP.
To: COMERICA BANK
Reel/Frame 053360/0204 →
RELEASE OF SECURITY INTEREST Recorded Jun 13, 2017
From: PACIFIC WESTERN BANK, AS SUCCESSOR IN INTEREST TO SQUARE 1 BANK
To: TRILUMINA CORP.
Reel/Frame 042695/0009 →
SECURITY INTEREST Recorded Jul 14, 2016
From: TRILUMINA CORP.
To: PACIFIC WESTERN BANK AS SUCCESSOR IN INTEREST BY MERGER TO SQUARE 1 BANK
Reel/Frame 039160/0933 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 28, 2014
From: JOSEPH, JOHN R.
To: TRILUMINA CORP.
Reel/Frame 032322/0414 →
Continuity (3)
Continuation In Part 12970880 · Dec 16, 2010
Provisional Application 61288269 · Dec 19, 2009
Related Publication 20140079088A1 · Mar 20, 2014