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1. WO2007149956 - METHOD AND APPARATUS FOR CONTROLLING CARRIER ENVELOPE PHASE

Publication Number WO/2007/149956
Publication Date 27.12.2007
International Application No. PCT/US2007/071731
International Filing Date 21.06.2007
IPC
H01S 3/13 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
3Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
10Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
13Stabilisation of laser output parameters, e.g. frequency, amplitude
CPC
H01S 2301/08
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
2301Functional characteristics
08Generation of pulses with special temporal shape or frequency spectrum
H01S 3/0057
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
3Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
005Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
0057Temporal shaping, e.g. pulse compression, frequency chirping
Applicants
  • KANSAS STATE UNIVERSITY RESEARCH FOUNDATION [US]/[US] (AllExceptUS)
  • CHANG, Zenghu [CN]/[US] (UsOnly)
  • LI, Chengquan [CN]/[US] (UsOnly)
  • MOON, Eric [US]/[US] (UsOnly)
Inventors
  • CHANG, Zenghu
  • LI, Chengquan
  • MOON, Eric
Agents
  • SKOCH, Gregory, J.
Priority Data
60/805,71723.06.2006US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR CONTROLLING CARRIER ENVELOPE PHASE
(FR) PROCÉDÉ ET APPAREIL POUR COMMANDER LA PHASE DE L'ENVELOPPE PORTEUSE
Abstract
(EN)
A chirped pulse amplification laser system The system generally comprises a laser source (12), a pulse modification apparatus (18) including first and second pulse modification elements separated by a separation distance, a positioning element (24s), a measurement device (22), and a feedback controller (26), The laser source (12) is operable to generate a laser pulse a the pulse modification apparatus operable to modify at least a portion of the laser pulse The positioning element (24s) is operable to reposition at least a portion of the pulse modification apparatus to vary the separation distance, The measurement device (22) is operable to measure the carrier envelope phase of the generated laser pulse and the feedback controller (26) is operable to control the positioning element based on the measured carrier envelope phase to vary the separation distance of the pulse modification elements and control the earner envelope phase of laser pulses generated by the laser source.
(FR)
L'invention concerne un système de laser à amplification d'impulsion comprimée. Ledit système comprend en général une source laser, un appareil de modification d'impulsion comprenant un premier et un second élément de modification d'impulsion séparés par une distance de séparation, un élément de positionnement, un dispositif de mesure et un contrôleur de rétroaction. La source laser fonctionne afin de générer une impulsion laser et l'appareil de modification d'impulsion fonctionne afin de modifier au moins une partie de l'impulsion laser. L'élément de positionnement fonctionne afin de repositionner au moins une partie de l'appareil de modification d'impulsion pour faire varier la distance de séparation. Le dispositif de mesure fonctionne afin de mesurer la phase d'enveloppe porteuse de l'impulsion laser générée, le contrôleur de rétroaction fonctionnant afin de commander l'élément de positionnement en fonction de la phase d'enveloppe porteuse mesurée afin de faire varier la distance de séparation des éléments de modification d'impulsion et de commander la phase d'enveloppe porteuse générée par la source laser.
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