IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0177332
(2011-07-06)
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등록번호 |
US-8565275
(2013-10-22)
|
발명자
/ 주소 |
- Pushkarsky, Michael
- Arnone, David F.
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
7 인용 특허 :
92 |
초록
▼
A laser source assembly (210) for generating an assembly output beam (212) includes a first laser source (218A), a second laser source (218B), and a dispersive beam combiner (222). The first laser source (218A) emits a first beam (220A) having a first center wavelength, and the second laser source (
A laser source assembly (210) for generating an assembly output beam (212) includes a first laser source (218A), a second laser source (218B), and a dispersive beam combiner (222). The first laser source (218A) emits a first beam (220A) having a first center wavelength, and the second laser source (218B) emits a second beam (220B) having a second center wavelength that is different than the first center wavelength. The dispersive beam combiner (222) includes a common area 224 that combines the first beam (220A) and the second beam (220B) to provide the assembly output beam (212). The first beam (220A) impinges on the common area (224) at a first beam angle (226A), and the second beam (220B) impinges on the common area (224) at a second beam angle (226B) that is different than the first beam angle (226A). Further, the beams (220A) (220B) that exit from the dispersive beam combiner (222) are substantially coaxial, are fully overlapping, and are co-propagating.
대표청구항
▼
1. A laser source assembly for providing an assembly output beam, the laser source assembly comprising: a first laser source that emits a first beam having a first center wavelength;a second laser source that emits a second beam having a second center wavelength that is different than the first cent
1. A laser source assembly for providing an assembly output beam, the laser source assembly comprising: a first laser source that emits a first beam having a first center wavelength;a second laser source that emits a second beam having a second center wavelength that is different than the first center wavelength; anda dispersive beam combiner that combines the first beam and the second beam to provide the assembly output beam; wherein the first beam impinges on a common area of the dispersive beam combiner at a first beam angle, and wherein the second beam impinges on the common area at a second beam angle that is different than the first beam angle; and wherein the beams exiting from the dispersive beam combiner are substantially coaxial; anda reflective beam director assembly that reflects the first beam so that the first beam impinges on the common area at the first angle, and that reflects the second beam so that the second beam impinges on the common area at the second angle. 2. The laser source assembly of claim 1 wherein the first laser source includes an adjustable, first wavelength dependent feedback assembly that is adjusted to select the first center wavelength; and wherein the second laser source includes an adjustable, second wavelength dependent feedback assembly that is adjusted to select the second center wavelength. 3. The laser source assembly of claim 1 wherein the first center wavelength and the second center wavelength are in the mid to far infrared range. 4. The laser source assembly of claim 1 wherein the assembly output beam has a figure of merit M2 of approximately 1.2. 5. The laser source assembly of claim 1 further comprising an optical switch, and a lens that focuses the assembly output beam on an inlet to the optical switch. 6. The laser source assembly of claim 1 wherein the dispersive beam combiner includes a grating which combines the first beam and the second beam. 7. The laser source assembly of claim 6 further comprising a prism that directs the beams at the grating. 8. The laser source assembly of claim 1 further comprising a third laser source that emits a third beam having a third center wavelength that is different than the first center wavelength and the second center wavelength; wherein the dispersive beam combiner that combines the first beam, the second beam, and the third beam to provide the assembly output beam; wherein the third beam impinges on the common area of dispersive beam combiner at a third beam angle that is different than the first beam angle and the second beam angle. 9. A missile jamming system for jamming an incoming missile, the missile jamming system comprising the laser source assembly of claim 1 directing the assembly output beam at the incoming missile. 10. A method for generating an assembly output beam, the method comprising the steps of: emitting a first beam with a first laser source, the first beam having a first center wavelength;emitting a second beam with a second laser source, the second beam having a second center wavelength that is different than the first center wavelength; andproviding a dispersive beam combiner that has a common area;reflecting the first beam so that the first beam impinges on the common area at a first beam angle, and reflecting the second beam so that the second beam impinges on the common area at a second beam angle that is different from the first beam angle; andcombining the first beam and the second beam with the dispersive beam combiner to provide the assembly output beam; wherein the beams exiting from the dispersive beam combiner are substantially coaxial. 11. The method of claim 10 wherein the step of emitting a first beam includes adjusting a first wavelength dependent feedback assembly of the first laser source to adjust the first center wavelength, and wherein the step of emitting a second beam includes adjusting a second wavelength dependent feedback assembly of the second laser source to adjust the second center wavelength. 12. The method of claim 10 wherein the assembly output beam has a figure of merit M2 of less than approximately 1.2. 13. The method of claim 10 further comprising the step of focusing the assembly output beam on an inlet of an optical switch. 14. The method of claim 10 wherein the step of combining includes the dispersive beam combiner having a grating which combines the first beam and the second beam. 15. The method of claim 14 further comprising the step of directing the beams at the grating with a prism. 16. The method of claim 10 further comprising the step of emitting a third beam with a third laser source, the third beam having a third center wavelength that is different than the first center wavelength and the second center wavelength, and wherein the step of combining includes combining the first beam, the second beam and the third beam with the dispersive beam combiner to provide the assembly output beam; wherein the third beam impinges on the common area at a third beam angle that is different from the first beam angle and the second beam angle. 17. The method of claim 10 wherein the step of emitting a first beam includes the first beam being in the mid to far infrared range, and wherein the step of emitting a second beam includes the second beam being in the mid to far infrared range. 18. The laser source assembly of claim 1 wherein the reflective beam director assembly includes (i) a pair of spaced apart first beam directors that are independently adjustable to reflect and redirect the first beam so that the first beam impinges on the common area at the first angle, and (ii) a pair of spaced apart second beam directors that are independently adjustable to reflect and redirect the second beam so that the second beam impinges on the common area at the second angle. 19. The laser source assembly of claim 1 wherein the first laser source includes a first temperature controller that controls the temperature of the first laser source, and the second laser source includes a second temperature controller that controls the temperature of the second laser source. 20. A laser source assembly for providing an assembly output beam, the laser source assembly comprising: a first laser source that emits a first beam having a first center wavelength;a second laser source that emits a second beam having a second center wavelength that is different than the first center wavelength;a third laser source that emits a third beam having a third center wavelength that is different than the first center wavelength and the second center wavelength; anda dispersive beam combiner that combines the first beam, the second beam, and the third beam to provide the assembly output beam; wherein the first beam impinges on a common area of the dispersive beam combiner at a first beam angle, wherein the second beam impinges on the common area at a second beam angle that is different than the first beam angle; wherein the third beam impinges on the common area of the dispersive beam combiner at a third beam angle that is different than the first beam angle and the second beam angle; and wherein the beams exiting from the dispersive beam combiner are substantially coaxial. 21. The laser source assembly of claim 20 wherein the first laser source includes an adjustable, first wavelength dependent feedback assembly that is adjusted to select the first center wavelength, the second laser source includes an adjustable, second wavelength dependent feedback assembly that is adjusted to select the second center wavelength, and the third laser source includes an adjustable, third wavelength dependent feedback assembly that is adjusted to select the third center wavelength. 22. The laser source assembly of claim 20 wherein the dispersive beam combiner includes a grating which combines the first beam, the second beam, and the third beam. 23. The laser source assembly of claim 20 further comprising a reflective beam director assembly that reflects the first beam so that the first beam impinges on the common area at the first angle, that reflects the second beam so that the second beam impinges on the common area at the second angle, and that reflects the third beam so that the third beam impinges on the common area at the third angle. 24. The laser source assembly of claim 23 wherein the reflective beam director assembly includes (i) a pair of spaced apart first beam directors that are independently adjustable to reflect and redirect the first beam so that the first beam impinges on the common area at the first angle, (ii) a pair of spaced apart second beam directors that are independently adjustable to reflect and redirect the second beam so that the second beam impinges on the common area at the second angle, and (iii) a pair of spaced apart third beam directors that are independently adjustable to reflect and redirect the third beam so that the third beam impinges on the common area at the third angle. 25. The laser source assembly of claim 20 wherein the first laser source includes a first temperature controller that independently controls the temperature of the first laser source, the second laser source includes a second temperature controller that independently controls the temperature of the second laser source, and the third laser source includes a third temperature controller that independently controls the temperature of the third laser source. 26. A missile jamming system for jamming an incoming missile, the missile jamming system comprising the laser source assembly of claim 1 directing the assembly output beam at the incoming missile. 27. A method for generating an assembly output beam, the method comprising the steps of: emitting a first beam with a first laser source, the first beam having a first center wavelength;emitting a second beam with a second laser source, the second beam having a second center wavelength that is different than the first center wavelength;emitting a third beam with a third laser source, the third beam having a third center wavelength that is different than the first center wavelength and the second center wavelength; andcombining the first beam, the second beam and the third beam with a dispersive beam combiner to provide the assembly output beam; wherein the first beam impinges on a common area of dispersive beam combiner at a first beam angle; wherein the second beam impinges on the common area at a second beam angle that is different than the first beam angle; wherein the third beam impinges on the common area at a third beam angle that is different from the first beam angle and the second beam angle; and wherein the beams exiting from the dispersive beam combiner are substantially coaxial.
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