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OPTICAL VORTEX LASER VIBRATION METHOD AND OPTICAL VORTEX LASER VIBRATION DEVICE

Foreign code F120007091
File No. S2011-0829-N0
Posted date Dec 27, 2012
Country WIPO
International application number 2012JP064663
International publication number WO 2012169578
Date of international filing Jun 7, 2012
Date of international publication Dec 13, 2012
Priority data
  • P2011-127356 (Jun 7, 2011) JP
Title OPTICAL VORTEX LASER VIBRATION METHOD AND OPTICAL VORTEX LASER VIBRATION DEVICE
Abstract Provided is an optical vortex laser vibration device which is capable of an increased output and can generate an optical vortex even in a wide frequency range and if the optical vortex has a quantum number which is not an integer. A laser device according to one embodiment of the present application comprises: a laser light source for generating laser light; an optical vortex generation unit for generating an energized optical vortex on the basis of the laser light generated by the laser light source; and an optical resonance unit for resonating the energized optical vortex generated by the optical vortex generation unit and dividing the energized optical vortex into signal light and idler light. Therein, it is preferable that the optical resonance unit comprises a non-linear medium and a pair of resonator mirrors sandwiching the non-linear medium, and it is preferable that the non-linear medium includes at least one among KTiOPO4, periodically polarization-reversed LiNbO3, and periodically polarization-reversed LiTaO3.
Scope of claims [claim1]

(Claims machine translated from Japanese)
[claim2]
1. The optical eddy laser oscillation method of inputting the optical eddy of pulse excitation into optical parametric oscillation system, plural coherent generating the optical eddy, frequency conversion and changing the quantum number of orbital angular momentum.
[claim3]
2. As for the aforementioned optical parametric oscillation system, the resonator mirror of the pair which puts non-linear medium and the aforementioned non-linear medium and, optical eddy laser oscillation method of the claim 1 statement which has the resonator which it possesses.
[claim4]
3. As for radius of curvature of the aforementioned resonator mirror, optical eddy laser oscillation method of the claim 2 statement which is 5 times that or more the resonator length which the resonator mirror of the aforementioned pair forms.
[claim5]
4. As for the resonator mirror of the aforementioned pair, optical eddy laser oscillation method of the claim 1 statement which is parallel flat.
[claim6]
5. Changing the resonance condition in the aforementioned resonator, optical eddy laser oscillation method of the claim 1 statement which changes the degeneracy state of quantum number of the aforementioned torque.
[claim7]
6. As for quantum number of the aforementioned orbital angular momentum optical eddy laser oscillation method of the claim 1 statement which is non-degenerate state.
[claim8]
7. The aforementioned plural coherent generating the optical eddy, optical eddy laser oscillation method of the claim 1 statement which does multi frequency occurrences.
[claim9]
8. Optical eddy laser oscillation method of the claim 7 statement which generates difference cycle.
[claim10]
9. Optical eddy laser oscillation method of the claim 2 statement which turns the aforementioned non-linear medium.
[claim11]
10. Optical eddy laser oscillation method of the claim 2 statement which changes the temperature of the aforementioned non-linear medium.
[claim12]
11. As for the aforementioned non-linear medium, optical eddy laser oscillation method of the claim 2 statement which includes at least either KTiOPO [4], periodic polarization reversal LiNbO [3], and periodic polarization reversal LiTaO [3].
[claim13]
12. The laser illuminant which gives out the laser light of pulse excitation and,
The optical eddy occurrence section which gives out the excited optical eddy on the basis of the laser light which the aforementioned laser illuminant gives out and,
The optical parametric oscillation system where plural coherent it generates the optical eddy on the basis of the excited optical eddy which occurs due to the aforementioned optical eddy occurrence section frequency conversion and changes the quantum number of orbital angular momentum and, the optical eddy laser oscillation device which it possesses.
[claim14]
13. As for the aforementioned optical parametric oscillation system, the resonator mirror of the pair which puts non-linear medium and the aforementioned non-linear medium and, the optical eddy laser oscillation device of the claim 12 statement which has the resonator which it possesses.
[claim15]
14. As for radius of curvature of the aforementioned resonator mirror, the optical eddy laser oscillation device of the claim 13 statement which is 5 times that or more the resonator length which the resonator mirror of the aforementioned pair forms.
[claim16]
15. As for the resonator mirror of the aforementioned pair, the optical eddy laser oscillation device of the claim 12 statement which is parallel flat.
[claim17]
16. Changing the resonance condition in the aforementioned resonator, the optical eddy laser oscillation device of the claim 12 statement which changes the degeneracy state of quantum number of the aforementioned torque.
[claim18]
17. As for quantum number of the aforementioned orbital angular momentum the optical eddy laser oscillation device of the claim 12 statement which is non-degenerate state.
[claim19]
18. The aforementioned plural coherent generating the optical eddy, the optical eddy laser oscillation device of the claim 12 statement which does multi frequency occurrences.
[claim20]
19. The optical eddy laser oscillation device of the claim 18 statement which generates difference cycle.
[claim21]
20. The optical eddy laser oscillation device of the claim 13 statement which turns the aforementioned non-linear medium.
[claim22]
21. The optical eddy laser oscillation device of the claim 13 statement which changes the temperature of the aforementioned non-linear medium.
[claim23]
22. As for the aforementioned non-linear medium, the optical eddy laser oscillation device of the claim 13 statement which includes at least either KTiOPO [4], periodic polarization reversal LiNbO [3], and periodic polarization reversal LiTaO [3].
[claim24]
23. The laser illuminant which gives out laser light and,
The optical eddy occurrence section which gives out the excited optical eddy on the basis of the laser light which the aforementioned laser illuminant gives out and,
Resonating the aforementioned excited optical eddy which the aforementioned optical eddy occurrence section gives out, the optical resonance section which it divides into signal light and idler light and, the laser oscillation device which it possesses.
[claim25]
24. As for the aforementioned optical resonance section, the optical eddy laser oscillation device of the claim 23 statement which possesses with the resonator mirror of the pair which puts non-linear medium and the aforementioned non-linear medium.
[claim26]
25. As for radius of curvature of the aforementioned resonator mirror, the optical eddy laser oscillation device of the claim 24 statement which is 5 times that or more the resonator length which the resonator mirror of the aforementioned pair forms.
[claim27]
26. Ratio of photon energy of the idler light for the photon energy of the aforementioned signal light, the optical eddy laser oscillation device of the claim 23 statement which is the range of the 1.2 or less of 0.8 or more.
[claim28]
27. As for the aforementioned non-linear medium, the optical eddy laser oscillation device of the claim 24 statement which includes at least either KTiOPO [4], periodic polarization reversal LiNbO [3], and periodic polarization reversal LiTaO [3].
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • CHIBA UNIVERSITY
  • Inventor
  • OMATSU TAKASHIGE
  • MIYAMOTO KATSUHIKO
IPC(International Patent Classification)
Specified countries National States: AE AG AL AM AO AT AU AZ BA BB BG BH BR BW BY BZ CA CH CL CN CO CR CU CZ DE DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IS JP KE KG KM KN KP KR KZ LA LC LK LR LS LT LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PE PG PH PL PT QA RO RS RU RW SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG
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