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1. WO2014145707 - PICOSECOND OPTICAL RADIATION SYSTEMS AND METHODS OF USE

Publication Number WO/2014/145707
Publication Date 18.09.2014
International Application No. PCT/US2014/030516
International Filing Date 17.03.2014
IPC
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
S
DEVICES USING STIMULATED EMISSION
3
Lasers, i.e. devices for generation, amplification, modulation, demodulation, or frequency-changing, using stimulated emission, of infra-red, visible, or ultra-violet waves
05
Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
06
Construction or shape of active medium
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
N
ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
5
Radiation therapy
06
using light
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
S
DEVICES USING STIMULATED EMISSION
3
Lasers, i.e. devices for generation, amplification, modulation, demodulation, or frequency-changing, using stimulated emission, of infra-red, visible, or ultra-violet waves
09
Processes or apparatus for excitation, e.g. pumping
091
using optical pumping
094
by coherent light
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
S
DEVICES USING STIMULATED EMISSION
3
Lasers, i.e. devices for generation, amplification, modulation, demodulation, or frequency-changing, using stimulated emission, of infra-red, visible, or ultra-violet waves
098
Mode locking; Mode suppression
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
S
DEVICES USING STIMULATED EMISSION
3
Lasers, i.e. devices for generation, amplification, modulation, demodulation, or frequency-changing, using stimulated emission, of infra-red, visible, or ultra-violet waves
10
Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
11
in which the quality factor of the optical resonator is rapidly changed, i.e. giant-pulse technique
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
S
DEVICES USING STIMULATED EMISSION
3
Lasers, i.e. devices for generation, amplification, modulation, demodulation, or frequency-changing, using stimulated emission, of infra-red, visible, or ultra-violet waves
05
Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
08
Construction or shape of optical resonators or components thereof
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
S
DEVICES USING STIMULATED EMISSION
3
Lasers, i.e. devices for generation, amplification, modulation, demodulation, or frequency-changing, using stimulated emission, of infra-red, visible, or ultra-violet waves
09
Processes or apparatus for excitation, e.g. pumping
091
using optical pumping
0915
by incoherent light
092
of flash lamp
093
focusing or directing the excitation energy into the active medium
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
S
DEVICES USING STIMULATED EMISSION
3
Lasers, i.e. devices for generation, amplification, modulation, demodulation, or frequency-changing, using stimulated emission, of infra-red, visible, or ultra-violet waves
10
Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
106
by controlling a device placed within the cavity
107
using an electro-optical device, e.g. exhibiting Pockels- or Kerr-effect
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
S
DEVICES USING STIMULATED EMISSION
3
Lasers, i.e. devices for generation, amplification, modulation, demodulation, or frequency-changing, using stimulated emission, of infra-red, visible, or ultra-violet waves
14
characterised by the material used as the active medium
16
Solid materials
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
S
DEVICES USING STIMULATED EMISSION
3
Lasers, i.e. devices for generation, amplification, modulation, demodulation, or frequency-changing, using stimulated emission, of infra-red, visible, or ultra-violet waves
H01S 3/06 (2006.01)
A61N 5/06 (2006.01)
H01S 3/094 (2006.01)
H01S 3/098 (2006.01)
H01S 3/11 (2006.01)
H01S 3/08 (2006.01)
CPC
A61B 18/203
A61B 2018/0047
A61N 2005/067
A61N 5/0616
H01S 3/0092
H01S 3/0627
Applicants
  • CYNOSURE, INC. [US/US]; 5 Carlisle Road Westford, Massachusetts 01886, US
  • SIERRA, Rafael Armando [US/US]; US
  • ROBERTSON, John [US/US]; US
  • HOHM, Daniel [US/US]; US
  • HOFFMAN, Christian [US/US]; US
  • MIRKOV, Mirko Georgiev [US/US]; US
Inventors
  • SIERRA, Rafael Armando; US
  • ROBERTSON, John; US
  • HOHM, Daniel; US
  • HOFFMAN, Christian; US
  • MIRKOV, Mirko Georgiev; US
Agents
  • FAJKOWSKI, James E.; K&L Gates LLP State Street Financial Center One Lincoln Street Boston, Massachusetts 02111, US
Priority Data
61/789,14415.03.2013US
61/891,29915.10.2013US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PICOSECOND OPTICAL RADIATION SYSTEMS AND METHODS OF USE
(FR) SYSTÈMES DE RAYONNEMENT OPTIQUE PICOSECONDE ET PROCÉDÉS D'UTILISATION
Abstract
(EN)
Methods, systems and apparatus are disclosed for delivery of pulsed treatment radiation by employing a pump radiation source (210) generating picosecond pulses at a first wavelength, and a frequency-shifting resonator (220) having a lasing medium and resonant cavity configured to receive the picosecond pulses from the pump source (210) at the first wavelength and to emit radiation at a second wavelength in response thereto, wherein the resonant cavity of the frequency-shifting resonator has a round trip time shorter than the duration of the picosecond pulses generated by the pump radiation source. The second wavelength my be amplified in an amplifier (24) and frequency doubled in a suitable medium (250). The resonator (220) may be realized by a short monolithic Nd:YAG or Nd:YV04 laser crystal which is highly doped.
(FR)
La présente invention porte sur des procédés, sur des systèmes et sur un appareil pour l'administration d'un rayonnement de traitement pulsé par l'emploi d'une source de rayonnement de pompage générant des impulsions picosecondes à une première longueur d'onde, et un résonateur de décalage de fréquence ayant un milieu actif et une cavité résonante configurée pour recevoir les impulsions picosecondes provenant de la source de pompage à la première longueur d'onde et pour émettre un rayonnement à une seconde longueur d'onde en réponse à celle-ci, la cavité résonante du résonateur de décalage de fréquence ayant un temps d'aller-retour plus court que la durée des impulsions picosecondes générées par la source de rayonnement de pompage. La présente invention porte également sur des procédés, sur des systèmes et sur un appareil destinés à fournir une uniformité de faisceau et un résonateur subharmonique.
Also published as
Latest bibliographic data on file with the International Bureau