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1. WO2013096368 - HIGH POWER SINGLE MODE FIBER PUMP LASER SYSTEM AT 980 nm.

Publication Number WO/2013/096368
Publication Date 27.06.2013
International Application No. PCT/US2012/070463
International Filing Date 19.12.2012
IPC
H01S 3/10 2006.1
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
H01S 3/067 2006.1
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
05Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
06Construction or shape of active medium
063Waveguide lasers, e.g. laser amplifiers
067Fibre lasers
CPC
H01S 2301/02
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
02ASE (amplified spontaneous emission), noise; Reduction thereof
H01S 3/06733
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
05Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
06Construction or shape of active medium
063Waveguide lasers, ; i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
067Fibre lasers
06708Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
06729Peculiar transverse fibre profile
06733Fibre having more than one cladding
H01S 3/06745
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
05Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
06Construction or shape of active medium
063Waveguide lasers, ; i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
067Fibre lasers
06708Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
06745Tapering of the fibre, core or active region
H01S 3/0675
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
05Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
06Construction or shape of active medium
063Waveguide lasers, ; i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
067Fibre lasers
0675Resonators including a grating structure, e.g. distributed Bragg reflectors [DBR] or distributed feedback [DFB] fibre lasers
H01S 3/06754
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
05Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
06Construction or shape of active medium
063Waveguide lasers, ; i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
067Fibre lasers
06754Fibre amplifiers
H01S 3/094003
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
09Processes or apparatus for excitation, e.g. pumping
091using optical pumping
094by coherent light
094003the pumped medium being a fibre
Applicants
  • IPG PHOTONICS CORPORATION [US]/[US] (AllExceptUS)
  • GAPONTSEV, Valentin [US]/[US] (US)
  • SAMARTSEV, Igor [RU]/[US] (US)
Inventors
  • GAPONTSEV, Valentin
  • SAMARTSEV, Igor
Agents
  • KATESHOV, Yuri
Priority Data
61/577,33919.12.2011US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) HIGH POWER SINGLE MODE FIBER PUMP LASER SYSTEM AT 980 nm.
(FR) SYSTÈME LASER DE POMPAGE À FIBRE MONOMODE HAUTE PUISSANCE ÉMETTANT À UNE LONGUEUR D'ONDE DE 980 NM
Abstract
(EN)
A high power pump ultra bright low-noise source is configured with a multimode ("MM") seed source outputting a MM smooth, low-noise signal light at a wavelength λρ in a wavelength range between about 900 and 940 nm, a MM Yb fiber wavelength converter operative to convert emission of a plurality of high power ("HP"') semiconductor laser diodes at a wavelength λρ to a pump output at the desired waveiength λρ. The Yb-doped MM wavelength converter is configured with noise levels substantially identical to and lower than those of the low-noise signal light, brightness ("B") substantially equal to nxB, wherein n is a number HP semiconductor laser diodes, and B is brightness of each TIP laser diode, and output power ("Po") subsiantially equal to nPd, wherein Pd is a power of each HP laser diode, and n is the number thereof.
(FR)
Selon l'invention, une source de pompage haute puissance ultra-brillante, de faible bruit, est configurée d'une part avec une source d'ensemencement multimode ("MM") émettant un signal lumineux MM lisse, de faible bruit, à une longueur d'onde λρ comprise dans une plage d'environ 900 à 940 nm; d'autre part avec un convertisseur de longueur d'onde MM de la fibre dopée à l'Yb pouvant convertir l'émission d'une pluralité de diodes laser à semi-conducteurs haute puissance ("HP"') de longueur d'onde λρ donnée, en une sortie de pompage à la longueur d'onde λρ désirée. Le convertisseur de longueur d'onde MM dopé à l'Yb est configuré avec des niveaux de bruit sensiblement identiques et inférieurs à ceux du signal lumineux de faible bruit, et avec une luminosité ("B") sensiblement égale à nxB, n représentant un nombre de diodes laser à semi-conducteurs HP, et B la luminosité de chaque diode laser TIP; et la puissance de sortie ("Po") est sensiblement égale à nPd, Pd représentant une puissance de chaque diode laser HP et n le nombre de celle-ci.
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