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1. WO2014128499 - MULTI-PASS SLAB AMPLIFIER WITH ZIG-ZAG PATHS

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Publication Number WO/2014/128499
Publication Date 28.08.2014
International Application No. PCT/GB2014/050540
International Filing Date 21.02.2014
IPC
H01S 3/08 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
08Construction or shape of optical resonators or components thereof
H01S 3/06 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
H01S 3/0941 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
09Processes or apparatus for excitation, e.g. pumping
091using optical pumping
094by coherent light
0941of a semiconductor laser, e.g. of a laser diode
H01S 3/23 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
23Arrangement of two or more lasers not provided for in groups H01S3/02-H01S3/14113
H01S 3/00 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
CPC
H01S 3/0071
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
0071Beam steering, e.g. whereby a mirror outside the cavity is present to change the beam direction
H01S 3/0606
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
0602Crystal lasers or glass lasers
0606with polygonal cross-section, e.g. slab, prism
H01S 3/08095
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
08Construction or shape of optical resonators or components thereof
08095Zig-zag travelling beam through the active medium
H01S 3/0941
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
0941of a laser diode
H01S 3/2325
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
23Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
2308Amplifier arrangements, e.g. MOPA
2325Multi-pass amplifiers, e.g. regenerative amplifiers
Applicants
  • POWERLASE PHOTONICS LIMITED [GB]/[GB]
Inventors
  • KWON, Young
Agents
  • KILBURN & STRODE LLP
Priority Data
1303129.921.02.2013GB
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) MULTI-PASS SLAB AMPLIFIER WITH ZIG-ZAG PATHS
(FR) AMPLIFICATEUR MULTI-PASSAGES À PLAQUES COMPRENANT TRAJETS EN ZIGZAG
front page image
Abstract
(EN) There is provided a method of using a slab laser gain medium. The method comprises transmitting a light beam through the slab laser gain medium (101)on a first trajectory (105b) using a first mirror(109), wherein the first trajectory comprises a zigzag trajectory. The method further comprises redirecting the light beam through the slab laser gain medium (101) on a second trajectory (105d) using the first mirror (109). The slab laser gain medium may be a so-called "Innoslab" and with the help of two mirrors (107,109) multiple passes (105b-d) through the slab laser gain medium (101) are realized. Using zig-zag paths through the slab instead of straight paths the amplification for every pass is increased and the pump energy is more efficiently used.
(FR) L'invention concerne un procédé d'utilisation d'un matériau actif pour laser à plaque. Le procédé comprend la transmission d'un faisceau de lumière à travers le matériau actif pour laser à plaque (101) sur une première trajectoire (105b) à l'aide d'un premier miroir (109), la première trajectoire comprenant une trajectoire en zigzag. Le procédé comprend en outre l'étape consistant à rediriger le faisceau de lumière à travers le matériau actif pour laser à plaque (101) sur une seconde trajectoire (105d) en utilisant le premier miroir (109). Le matériau actif pour laser à plaque peut être appelé "Innoslab" et à l'aide de deux miroirs (107, 109) de multiples passages (105b-d) sont réalisés à travers le matériau actif pour laser à plaque (101). A l'aide de trajets en zigzag traversant la plaque au lieu de trajets droits, l'amplification pour chaque passage est accrue et l'énergie de pompage est utilisée plus efficacement.
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