Title:
HIGH -HARMONIC OPTICAL GENERATOR
Document Type and Number:
WIPO Patent Application WO/2013/050736
Kind Code:
A3
Abstract:
A high-harmonic optical generator (100) comprising a laser arrangement (102) and an optical waveguide (104), wherein the laser arrangement is configured to couple a beam (E) of linearly polarized radiation at a fundamental frequency (COQ) into the optical waveguide to provide a beam of optical driving radiation that propagates along a propagation axis (112) of the optical waveguide. The optical waveguide (104) has a hollow core (108) filled with a gaseous medium where generation of high harmonics of the fundamental frequency takes place. The generator is configured for the driving radiation to have a polarization el I i pticity (150i, 150ii, 150iii, 150iv, 150v, 150vi, 150vii, 150viii) that periodically varies along the propagation axis (112) of the optical waveguide (104), for example by coupling the linearly-polarized beam (E) into a birefringent optical waveguide, which has an ordinary axis (A0) and an extraordinary axis (Ae), with the linear polarization (150i) of the beam (E) forming an angle (Θ) greater than 0° and less than 90° with respect to the birefringent axes.
Inventors:
HOOKER SIMON (GB)
O'KEEFFE KEVIN (GB)
LIU LEWIS ZIRUO (GB)
O'KEEFFE KEVIN (GB)
LIU LEWIS ZIRUO (GB)
Application Number:
PCT/GB2012/052350
Publication Date:
June 06, 2013
Filing Date:
September 21, 2012
Export Citation:
Assignee:
ISIS INNOVATION (GB)
HOOKER SIMON (GB)
O'KEEFFE KEVIN (GB)
LIU LEWIS ZIRUO (GB)
HOOKER SIMON (GB)
O'KEEFFE KEVIN (GB)
LIU LEWIS ZIRUO (GB)
International Classes:
G02F1/35; G02F1/365; H05G2/00
Domestic Patent References:
| WO2009044100A1 | 2009-04-09 | |||
| WO2006072025A2 | 2006-07-06 |
Foreign References:
| US6151155A | 2000-11-21 |
Other References:
TSIA K ET AL: "Electrical tuning of birefringence in silicon waveguides", APPLIED PHYSICS LETTERS, AIP, AMERICAN INSTITUTE OF PHYSICS, MELVILLE, NY, US, vol. 92, no. 6, 14 February 2008 (2008-02-14), pages 61109 - 61109, XP012108145, ISSN: 0003-6951, DOI: 10.1063/1.2883925
WALL K F ET AL: "Titanium sapphire lasers", LINCOLN LABORATORY JOURNAL USA, vol. 3, no. 3, 1990, pages 447 - 462, XP002689645, ISSN: 0896-4130
B. DROMEY ET AL: "Quasi-phasematching of harmonic generation via multimode beating in waveguides", OPTICS EXPRESS, vol. 15, no. 13, 1 January 2007 (2007-01-01), pages 7894, XP055057713, ISSN: 1094-4087, DOI: 10.1364/OE.15.007894
B. CROS ET AL: "Eigenmodes for capillary tubes with dielectric walls and ultraintense laser pulse guiding", PHYSICAL REVIEW E, vol. 65, no. 2, 1 January 2002 (2002-01-01), pages 026405 - 026405, XP055057745, ISSN: 1063-651X, DOI: 10.1103/PhysRevE.65.026405
D. WALTER ET AL: "Adaptive spatial control of fiber modes and their excitation for high-harmonic generation", OPTICS EXPRESS, vol. 14, no. 8, 1 January 2006 (2006-01-01), pages 3433, XP055057755, ISSN: 1094-4087, DOI: 10.1364/OE.14.003433
WALL K F ET AL: "Titanium sapphire lasers", LINCOLN LABORATORY JOURNAL USA, vol. 3, no. 3, 1990, pages 447 - 462, XP002689645, ISSN: 0896-4130
B. DROMEY ET AL: "Quasi-phasematching of harmonic generation via multimode beating in waveguides", OPTICS EXPRESS, vol. 15, no. 13, 1 January 2007 (2007-01-01), pages 7894, XP055057713, ISSN: 1094-4087, DOI: 10.1364/OE.15.007894
B. CROS ET AL: "Eigenmodes for capillary tubes with dielectric walls and ultraintense laser pulse guiding", PHYSICAL REVIEW E, vol. 65, no. 2, 1 January 2002 (2002-01-01), pages 026405 - 026405, XP055057745, ISSN: 1063-651X, DOI: 10.1103/PhysRevE.65.026405
D. WALTER ET AL: "Adaptive spatial control of fiber modes and their excitation for high-harmonic generation", OPTICS EXPRESS, vol. 14, no. 8, 1 January 2006 (2006-01-01), pages 3433, XP055057755, ISSN: 1094-4087, DOI: 10.1364/OE.14.003433
Attorney, Agent or Firm:
HARRISON GODDARD FOOTE (Belgrave StreetLeeds, Yorkshire LS2 8DD, GB)
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