Claims
- 1. A diode pumped, intracavity doubled laser, comprising:at least two resonator mirrors defining a resonator cavity; an Nd:YVO4 laser crystal positioned in the resonator cavity; an LBO doubling crystal positioned in the resonator cavity; a diode pump source supplying a pump beam to the laser crystal and producing a laser crystal beam incident on the doubling crystal to produce a frequency doubled output beam with an output power of at least 1 watt, wherein a TEM00 mode size in the laser crystal is smaller than a pump beam diameter in the laser crystal and the diode pump source is configured to be coupled to a power supply.
- 2. The laser of claim 1, wherein the output power is at least 2 watts.
- 3. The laser of claim 1, wherein the output power is at least 3 watts.
- 4. The laser of claim 1, wherein the output power is at least 4 watts.
- 5. The laser of claim 1, wherein the output power is at least 5 watts.
- 6. The laser of claim 1, wherein the output power is at least 10 watts.
- 7. The laser of claim 1, wherein the output power is at least 15 watts.
- 8. The laser of claim 1, wherein the output power is at least 20 watts.
- 9. The laser of claim 1, wherein the doubled output beam has a % RMS noise of less than 0.5%.
- 10. The laser of claim 1, wherein the doubled output beam has a % RMS noise of less than 0.3%.
- 11. The laser of claim 1, wherein the doubled output beam has a % RMS noise of less than 0.2%.
- 12. The laser of claim 1, wherein the doubled output beam has a % RMS noise of less than 0.1%.
- 13. The laser of claim 1, wherein a TEM00 mode size in the laser crystal is smaller than a pump beam diameter in the laser crystal.
- 14. The laser of claim 1, wherein the diode pump source is a diode bar.
- 15. The laser of claim 1, wherein the diode pump source is a plurality of diode bars.
- 16. The laser of claim 1, wherein the diode pump source is fiber-coupled.
- 17. The laser of claim 1, wherein the output beam is substantially TEM00.
- 18. A diode pumped, multi axial mode, intracavity doubled laser, comprising:at least two resonator mirrors defining a resonator cavity; an Nd:YVO4 laser crystal positioned in the resonator cavity; an LBO doubling crystal positioned in the resonator cavity; a diode pump source supplying a pump beam to the laser crystal and producing a laser crystal beam with at least three axial modes that are incident on the doubling crystal to produce a frequency doubled output beam with an output power of at least 1 watt, wherein a TEM00 mode size in the laser crystal is smaller than a pump beam diameter in the laser crystal and the diode pump source is configured to be coupled to a power supply.
- 19. The laser of claim 18, wherein the output power is at least 2 watts.
- 20. The laser of claim 18, wherein the output power is at least 3 watts.
- 21. The laser of claim 18, wherein the output power is at least 4 watts.
- 22. The laser of claim 18, wherein the output power is at least 5 watts.
- 23. The laser of claim 18, wherein the output power is at least 10 watts.
- 24. The laser of claim 18, wherein the output power is at least 15 watts.
- 25. The laser of claim 18, wherein the output power is at least 20 watts.
- 26. The laser of claim 18, wherein the doubled output beam has a % RMS noise of less than 0.5%.
- 27. The laser of claim 18, wherein the doubled output beam has a % RMS noise of less than 0.3%.
- 28. The laser of claim 18, wherein the doubled output beam has a RMS noise of less than 0.2%.
- 29. The laser of claim 18, wherein the doubled output beam has a % RMS noise of less than 0.1%.
- 30. The laser of claim 18, wherein the diode pump source is a diode bar.
- 31. The laser of claim 18, wherein the diode pump source is a plurality of diode bars.
- 32. The laser of claim 18, wherein the diode pump source is fiber-coupled.
- 33. The laser of claim 18, wherein at least at least four axial modes are incident on the doubling crystal.
- 34. The laser of claim 18, wherein at least at least five axial modes are incident on the doubling crystal.
- 35. The laser of claim 18, wherein at least at least 10 axial modes are incident on the doubling crystal.
- 36. The laser of claim 18, wherein the output beam is substantially TEMP00.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part of U.S. patent application Ser. No. 08/446,203, filed May 19, 1995, which is a continuation-in-part of U.S. patent application Ser. No. 08/446,195, filed May 19, 1995 (U.S. Pat. No. 5,638,388, issued Jun. 10, 1997), which is a continuation-in-part of U.S. patent application Ser. No. 08/191,656, filed Feb. 4, 1994 (U.S. Pat. No. 5,446,749, issued Aug. 29, 1995), all of which are incorporated herein by reference.
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Foreign Referenced Citations (3)
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EP |
0 556 582 A1 |
Aug 1993 |
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Oct 1995 |
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Non-Patent Literature Citations (5)
Entry |
Baer, T., “Large-amplitude fluctuations due to longitudinal mode coupling in diode-pumped intracavity-doubled Nd:YAG lasers”, J. Opt. Soc. Am. B, vol. 3, No. 9, pp. 1175-1180 (Sep. 1986). |
Oka, M. et al., “Stable intracavity doubling of orthogonal linearly polarized modes in diode-pumped Nd:YAG lasers”, Optics Letters, vol. 13, No. 10, p. 805-807 (Oct. 1988). |
James, G., et al., “Elimination of chaos in an intracavity-doubled Nd:YAG laser”, Optics Letters, vol. 15, No. 20, Oct. 15, 1990, pp. 1141-1143. |
Magni, V. et al., “Intracavity frequency doubling of a cw high-power TEM00 Nd:YLF laser”, Optics Letters, vol. 16, No. 24, Dec. 15, 1993, pp. 2111-2113. |
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Continuation in Parts (3)
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Number |
Date |
Country |
Parent |
08/446203 |
May 1995 |
US |
Child |
09/070478 |
|
US |
Parent |
08/446195 |
May 1995 |
US |
Child |
08/446203 |
|
US |
Parent |
08/191656 |
Feb 1994 |
US |
Child |
08/446195 |
|
US |