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1. (WO2017091294) PLANAR WAVEGUIDE (PWG) AMPLIFIER-BASED LASER SYSTEM WITH ADAPTIVE OPTIC WAVEFRONT CORRECTION IN LOW-POWER BEAM PATH
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/091294 International Application No.: PCT/US2016/054252
Publication Date: 01.06.2017 International Filing Date: 28.09.2016
IPC:
H01S 3/063 (2006.01) ,H01S 3/08 (2006.01) ,H01S 3/0941 (2006.01) ,H01S 3/13 (2006.01) ,H01S 3/131 (2006.01) ,H01S 3/23 (2006.01)
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
063
Waveguide lasers, e.g. laser amplifiers
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
094
by coherent light
0941
of a semiconductor laser, e.g. of a laser diode
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
13
Stabilisation of laser output parameters, e.g. frequency, amplitude
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
13
Stabilisation of laser output parameters, e.g. frequency, amplitude
131
by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
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
23
Arrangement of two or more lasers not provided for in groups H01S3/02-H01S3/14113
Applicants:
RAYTHEON COMPANY [US/US]; 870 Winter Street Waltham, Massachusetts 02451-1449, US
Inventors:
FILGAS, David M.; US
BOLAND, Brian F.; US
MCKIE, Andrew D. W.; US
Agent:
DOYLE, David M.; US
MUNCK, William A.; US
Priority Data:
15/246,07624.08.2016US
62/259,72225.11.2015US
62/266,50711.12.2015US
Title (EN) PLANAR WAVEGUIDE (PWG) AMPLIFIER-BASED LASER SYSTEM WITH ADAPTIVE OPTIC WAVEFRONT CORRECTION IN LOW-POWER BEAM PATH
(FR) SYSTÈME LASER À BASE D'AMPLIFICATEUR DE GUIDE D'ONDES PLANAIRE (PWG) AVEC CORRECTION ADAPTATIVE DE FRONT D'ONDE OPTIQUE DANS UN TRAJET DE FAISCEAU DE FAIBLE PUISSANCE
Abstract:
(EN) A system includes a master oscillator (102) configured to generate a low-power optical beam (808). The system also includes a planar waveguide (PWG) amplifier (104) configured to amplify the low-power beam into a high-power output optical beam (116, 806), where the PWG amplifier has a larger dimension in an unguided direction and a smaller dimension in a transverse guided direction. The system further includes an adaptive optic (108, 202, 302, 502) configured to pre-distort the low-power optical beam substantially along a single dimension prior to injection of the low-power optical beam into the PWG amplifier in order to compensate for thermal-based distortions created by the PWG amplifier. The single dimension represents the unguided direction. In addition, the system includes a feedback loop configured to control the adaptive optic.
(FR) La présente invention concerne un système qui comprend un oscillateur maître (102) conçu pour générer un faisceau optique de faible puissance (808). Le système comprend également un amplificateur de guide d'ondes planaire (PWG) (104) conçu pour amplifier le faisceau de faible puissance en un faisceau optique de sortie de haute puissance (116, 806), ledit amplificateur de PWG présente une dimension plus grande dans une direction non guidée et une dimension plus petite dans une direction guidée transversale. Le système comprend en outre un élément optique adaptatif (108, 202, 302, 502) conçu pour pré-distordre le faisceau optique de faible puissance sensiblement le long d'une dimension unique avant injection du faisceau optique de faible puissance dans l'amplificateur de PWG afin de compenser des distorsions thermique créées par l'amplificateur de PWG. La dimension unique représente la direction non guidée. De plus, le système comprend une boucle de rétroaction conçue pour commander l'élément optique adaptatif.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 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
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
IL259038EP3381097