EP2452407A2 - Laservorrichtung zum verstärken und/oder transportieren von elektromagnetischer strahlung - Google Patents
Laservorrichtung zum verstärken und/oder transportieren von elektromagnetischer strahlungInfo
- Publication number
- EP2452407A2 EP2452407A2 EP10757150A EP10757150A EP2452407A2 EP 2452407 A2 EP2452407 A2 EP 2452407A2 EP 10757150 A EP10757150 A EP 10757150A EP 10757150 A EP10757150 A EP 10757150A EP 2452407 A2 EP2452407 A2 EP 2452407A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- electromagnetic radiation
- amplifier
- medium
- radiation
- linearly polarized
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES 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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/10061—Polarization control
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES 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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/005—Optical 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
- H01S3/0057—Temporal shaping, e.g. pulse compression, frequency chirping
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES 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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08054—Passive cavity elements acting on the polarization, e.g. a polarizer for branching or walk-off compensation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES 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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/10007—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers
- H01S3/10023—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers by functional association of additional optical elements, e.g. filters, gratings, reflectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES 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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/23—Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
- H01S3/2308—Amplifier arrangements, e.g. MOPA
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES 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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/23—Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
- H01S3/2308—Amplifier arrangements, e.g. MOPA
- H01S3/2325—Multi-pass amplifiers, e.g. regenerative amplifiers
- H01S3/2333—Double-pass amplifiers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES 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
- H01S5/00—Semiconductor lasers
- H01S5/50—Amplifier structures not provided for in groups H01S5/02 - H01S5/30
- H01S5/5009—Amplifier structures not provided for in groups H01S5/02 - H01S5/30 the arrangement being polarisation-insensitive
- H01S5/5018—Amplifier structures not provided for in groups H01S5/02 - H01S5/30 the arrangement being polarisation-insensitive using two or more amplifiers or multiple passes through the same amplifier
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/27—Optical coupling means with polarisation selective and adjusting means
- G02B6/2706—Optical coupling means with polarisation selective and adjusting means as bulk elements, i.e. free space arrangements external to a light guide, e.g. polarising beam splitters
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/27—Optical coupling means with polarisation selective and adjusting means
- G02B6/2706—Optical coupling means with polarisation selective and adjusting means as bulk elements, i.e. free space arrangements external to a light guide, e.g. polarising beam splitters
- G02B6/2713—Optical coupling means with polarisation selective and adjusting means as bulk elements, i.e. free space arrangements external to a light guide, e.g. polarising beam splitters cascade of polarisation selective or adjusting operations
- G02B6/272—Optical coupling means with polarisation selective and adjusting means as bulk elements, i.e. free space arrangements external to a light guide, e.g. polarising beam splitters cascade of polarisation selective or adjusting operations comprising polarisation means for beam splitting and combining
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/27—Optical coupling means with polarisation selective and adjusting means
- G02B6/2753—Optical coupling means with polarisation selective and adjusting means characterised by their function or use, i.e. of the complete device
- G02B6/2766—Manipulating the plane of polarisation from one input polarisation to another output polarisation, e.g. polarisation rotators, linear to circular polarisation converters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES 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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/005—Optical 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
Definitions
- the invention relates to a device for amplifying and / or transporting electromagnetic radiation, having a radiation source for generating the electromagnetic radiation and an amplifier for amplifying or a medium for transporting the generated electromagnetic radiation.
- Such devices are known and find use, for example, in the generation of high-energy laser radiation.
- the quality of the electromagnetic radiation is impaired when amplifying and / or transporting the same mostly by the occurrence of dispersion and / or nonlinear effects. While the influence of the dispersion is usually well compensated, nonlinear effects cause a significant deterioration in the quality of the laser radiation.
- the dominant nonlinear effect is the Kerr effect. This manifests itself for example in the form of self-phase modulation.
- the Kerr effect is proportional to the peak intensity as well as to the interaction length in the amplifier or transport medium.
- time-stretched laser pulses also called chirped laser pulses
- chirped laser pulses for generating ultrashort laser pulses, and subsequently to amplify these chirped laser pulses.
- CPA systems Cold Pulse Amplification
- a disadvantage of the known methods for reducing the nonlinear effects is that relatively complicated and costly structural changes to existing devices must be made in order to obtain the desired result.
- the adaptation of the individual components to one another with these changes is also relatively complicated.
- This object is achieved on the basis of a device of the type mentioned above in that the propagating in the amplifier or transport medium electromagnetic radiation is largely not linearly polarized.
- the invention is based on the finding that the coefficient of nonlinear
- Refractive index depends on the polarization of the electromagnetic radiation. This coefficient is about linearly polarized electromagnetic radiation 1.5 times the size of circularly polarized electromagnetic radiation.
- nonlinear effects such as self-phase modulation, cross-phase modulation, self-focus, four-wave mixing, and the like can be reduced by the approach of the present invention.
- the inventive approach to reducing nonlinear effects is relatively simple and can also be adopted into existing systems, without having to make elaborate structural modifications.
- the approach of the present invention can be almost easily combined with the conventional approaches to reducing nonlinear effects described above. Among other things, it is advantageous that a reduction of the nonlinear effects leads to an increase in the peak power of the electromagnetic radiation. Furthermore, the threshold for self-focusing can be shifted upwards.
- the propagating in the amplifier or in the transport medium electromagnetic radiation is elliptically polarized.
- the propagating in the amplifier or in the transport medium electromagnetic radiation is circularly polarized.
- the radiation source generates linearly polarized electromagnetic radiation and a polarization converter is arranged in the beam path between the radiation source and the amplifier or transport medium.
- the polarization converter favors in this case that the linearly polarized electromagnetic radiation is converted such that the propagating in the amplifier or transport medium electromagnetic radiation is largely not linearly polarized.
- the amplifier or the transport medium for example an optical glass fiber, imparts to the electromagnetic radiation a nonlinear phase caused by nonlinear effects.
- This phase can be significantly reduced by the inventive approach in a simple manner, so as to increase the quality or performance of the amplified electromagnetic radiation.
- the polarization converter is preferably designed as a quarter wave plate. This represents a very simple and cost-effective implementation possibility.
- the choice of one of these polarization states has been found to be particularly suitable for reducing the nonlinear effects.
- other polarization states can also be selected, which are ideally tailored to the respective application.
- a further advantageous embodiment of the invention provides that the amplifier or the transport medium has a largely optical isotropic medium.
- this medium is a waveguide, a crystal, in particular YAG crystal, an amorphous material or a gas.
- the approach according to the invention for reducing the nonlinear effects has proven to be particularly effective and advantageous for such media.
- the electromagnetic radiation is formed from pulsed electromagnetic radiation pulses or from a continuous electromagnetic radiation.
- the occurrence of nonlinear effects can be observed in both types of electromagnetic radiation.
- the reduction according to the invention of the nonlinear effects applies equally to both types of radiation and leads to similarly good results.
- the use of a radiation source is advantageous, which generates linearly polarized electromagnetic radiation.
- the generated electromagnetic radiation is first passed through the polarization splitter, for example a polarization splitter cube, and then converted into non-linearly polarized electromagnetic radiation by means of the polarization converter.
- This is then amplified by means of the amplifier, for example a fiber amplifier.
- nonlinear effects can occur in the amplifier, which can be significantly reduced by the inventive choice of propagating in the amplifier, largely non-linearly polarized electromagnetic radiation.
- the amplified, largely non-linearly polarized electromagnetic radiation is then reflected back to the mirror and amplified again by means of the amplifier, with very small nonlinear effects also occur in this second amplification stage by the choice of largely non-linearly polarized electromagnetic radiation.
- the doubly amplified, largely non-linearly polarized electromagnetic radiation then passes through the polarization converter again and becomes amplified, linearly polarized electromagnetic radiation whose plane of polarization is perpendicular to that of the initial un amplified, linearly polarized electromagnetic radiation.
- the doubly amplified, linearly polarized electromagnetic radiation is finally decoupled via the polarization splitter for its further use out of the device. This embodiment of the device is thus very effective in a relatively compact design.
- the amplifier is followed by a further polarization converter, which converts the largely non-linearly polarized electromagnetic radiation into linearly polarized electromagnetic radiation.
- the electromagnetic radiation passes only once the amplifier.
- a straightener for temporal stretching of the electromagnetic radiation pulses arranged and the amplifier or further polarization converter a compressor for temporally compressing the amplified electromagnetic radiation pulses is connected downstream.
- the device is set up for the spectral shaping of the electromagnetic radiation pulses.
- the invention thus provides a device which serves in a very simple and cost-effective manner to reduce non-linear effects in the amplification and / or transport of electromagnetic radiation and at the same time with existing devices and with other methods for reducing nonlinear effects can be combined.
- FIG. 1 shows an exemplary embodiment of the device according to the invention
- FIG. 2 shows a further exemplary embodiment of the device according to the invention
- FIG. 3 shows another embodiment of the device according to the invention
- Figure 4 shows another embodiment of the device according to the invention
- FIG. 1 shows a first exemplary embodiment of the device 1 according to the invention.
- This has a radiation source 2 which generates largely non-linearly polarized electromagnetic radiation in the form of circularly or elliptically polarized electromagnetic radiation 3.
- the circularly or elliptically polarized electromagnetic radiation 3 is subsequently amplified by means of the amplifier 4.
- the nonlinear effects occurring in this case are significantly reduced by the use of circularly or elliptically polarized electromagnetic radiation 3.
- FIG. 2 shows a further exemplary embodiment of the device 11 according to the invention.
- This has a radiation source 12 for generating linearly polarized electromagnetic radiation 13.
- the linearly polarized electromagnetic radiation 13 is subsequently converted by a polarization converter 16 arranged in the beam path between the radiation source 12 and the amplifier 14 into circularly or elliptically polarized electromagnetic radiation 17.
- the circularly or elliptically polarized electromagnetic radiation 17 is then amplified by means of the amplifier 14, wherein amplified, circular or elliptically polarized electromagnetic radiation 15 is formed.
- This embodiment of the device 11 according to the invention can be used as an alternative to that shown in FIG.
- FIG. 3 shows a further exemplary embodiment of the device 21 according to the invention.
- a radiation source 22 which generates linearly polarized electromagnetic radiation 23.
- This linearly polarized electromagnetic radiation 23 is then passed through a polarization splitter 28, which is transmissive to linearly polarized electromagnetic radiation 23 in the polarization state as generated by the radiation source 22.
- the linearly polarized electromagnetic radiation 23 transmitted through the polarization splitter 28 is subsequently converted into circularly or elliptically polarized electromagnetic radiation 27 by means of the polarization converter 26.
- This circularly or elliptically polarized electromagnetic radiation 27 is subsequently amplified by means of the amplifier 24.
- the amplified, circularly or elliptically polarized electromagnetic radiation 25 is then reflected at a mirror 30, which is the direction of radiation of the amplified, circular or elliptically polarized electromagnetic radiation 25.
- the reflected amplified, circularly or elliptically polarized electromagnetic radiation 25 is again amplified by the amplifier 24 and then converted by means of the polarization converter 26 into linearly polarized electromagnetic radiation 29 whose plane of polarization, however, is perpendicular to the original linearly polarized electromagnetic radiation 23 generated by the radiation source 22, what should be indicated by the dots and arrows.
- the doubly amplified, linearly polarized electromagnetic radiation 29 is then coupled out of the device 21 via the polarization splitter 28.
- the radiation source 32 generates dispersively stretched, linearly polarized electromagnetic radiation 33.
- the radiation source generates linearly polarized electromagnetic radiation, which is subsequently stretched dispersively by means of a straightener which is connected downstream in the beam path of the radiation source.
- the dispersively stretched, linearly polarized electromagnetic radiation 33 is then converted into dispersively stretched, circularly or elliptically polarized electromagnetic radiation 37 by means of the polarization converter 36. This is then amplified by means of the amplifier 34.
- the amplified, dispersively stretched, circularly or elliptically polarized electromagnetic radiation 35 is again converted into dispersively stretched, linearly polarized electromagnetic radiation 39 by means of the further polarization converter 38 connected downstream of the amplifier 34.
- This is compressed in the end by means of a compressor 40 in time, which allows the delivery of high-energy, linearly polarized electromagnetic radiation 41 of high quality.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Lasers (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21160423.6A EP3876368B1 (de) | 2009-07-10 | 2010-07-09 | Vorrichtung zum verstärken und/oder transportieren von elektromagnetischer strahlung |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009032803A DE102009032803A1 (de) | 2009-07-10 | 2009-07-10 | Vorrichtung zum Verstärken und/oder Transportieren von elektromagnetischer Strahlung |
| PCT/EP2010/004187 WO2011003618A2 (de) | 2009-07-10 | 2010-07-09 | Vorrichtung zum verstärken und/oder transportieren von elektromagnetischer strahlung |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21160423.6A Division EP3876368B1 (de) | 2009-07-10 | 2010-07-09 | Vorrichtung zum verstärken und/oder transportieren von elektromagnetischer strahlung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2452407A2 true EP2452407A2 (de) | 2012-05-16 |
Family
ID=43243008
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10757150A Ceased EP2452407A2 (de) | 2009-07-10 | 2010-07-09 | Laservorrichtung zum verstärken und/oder transportieren von elektromagnetischer strahlung |
| EP21160423.6A Active EP3876368B1 (de) | 2009-07-10 | 2010-07-09 | Vorrichtung zum verstärken und/oder transportieren von elektromagnetischer strahlung |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21160423.6A Active EP3876368B1 (de) | 2009-07-10 | 2010-07-09 | Vorrichtung zum verstärken und/oder transportieren von elektromagnetischer strahlung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8982453B2 (de) |
| EP (2) | EP2452407A2 (de) |
| DE (1) | DE102009032803A1 (de) |
| HU (1) | HUE072296T2 (de) |
| WO (1) | WO2011003618A2 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202015009433U1 (de) * | 2015-12-22 | 2017-08-18 | PT Photonic Tools GmbH | Strahlführungssystem zur Übertragung von Laserlicht |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1076205B (de) | 1956-03-16 | 1960-02-25 | Marie G R P | Radargeraet mit zirkular polarisierter Strahlung zur Unterscheidung von isotropen und anisotropen Zielen und Verfahren zum Betrieb des Geraetes |
| DE1196255B (de) | 1962-01-20 | 1965-07-08 | Telefunken Patent | Radar-Reflektor fuer zirkular, elliptisch oder in beliebiger Ebene linear polarisierte elektromagnetische Wellen |
| CH451348A (de) * | 1967-02-08 | 1968-05-15 | Inst Angewandte Physik | Vorrichtung zur Frequenzstabilisierung eines Gaslaseroszillators |
| US4222011A (en) * | 1978-10-03 | 1980-09-09 | The United States Of America As Represented By The United States Department Of Energy | Stokes injected Raman capillary waveguide amplifier |
| DE2945466C2 (de) | 1979-11-10 | 1982-04-15 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Streifendiodenlaser mit rückwirkungsfreiem Faserausgang |
| JP3066966B2 (ja) * | 1988-02-29 | 2000-07-17 | ソニー株式会社 | レーザ光源 |
| US4989216A (en) | 1990-04-18 | 1991-01-29 | The United States Of America As Represented By The Secretary Of The Army | Double conjugate laser amplifier |
| EP0574921B1 (de) | 1992-06-19 | 2002-01-16 | Sony Corporation | Vorrichtung zur Erzeugung von Laserstrahlen |
| US5513194A (en) * | 1994-06-30 | 1996-04-30 | Massachusetts Institute Of Technology | Stretched-pulse fiber laser |
| JP3588195B2 (ja) | 1996-07-18 | 2004-11-10 | 浜松ホトニクス株式会社 | 固体レーザ増幅器 |
| US5880877A (en) * | 1997-01-28 | 1999-03-09 | Imra America, Inc. | Apparatus and method for the generation of high-power femtosecond pulses from a fiber amplifier |
| US6208458B1 (en) * | 1997-03-21 | 2001-03-27 | Imra America, Inc. | Quasi-phase-matched parametric chirped pulse amplification systems |
| US6229937B1 (en) * | 1998-09-17 | 2001-05-08 | Corning Incorporated | Circularly polarized fiber in optical circuits |
| DE10009380B4 (de) | 2000-02-29 | 2007-11-08 | Jenoptik Ldt Gmbh | Faserverstärker |
| DE10116076A1 (de) * | 2001-04-01 | 2002-10-10 | Keming Du | Verstärkeranordnung mit doppelbrechendem Strahlversetzer |
| DE10302785A1 (de) * | 2003-01-24 | 2004-08-19 | Menlo Systems Gmbh | Laseranordnung |
| US7349452B2 (en) * | 2004-12-13 | 2008-03-25 | Raydiance, Inc. | Bragg fibers in systems for the generation of high peak power light |
| US7477666B2 (en) * | 2005-04-06 | 2009-01-13 | Polar Onyx, Inc. | All fiber based short pulse amplification at one micron |
| US20080089366A1 (en) * | 2006-05-15 | 2008-04-17 | Polaronyx, Inc. | High energy short pulse fiber laser achieved by combining pulse shaping, polarization shaping and spectral shaping |
| US20090122818A1 (en) | 2007-03-14 | 2009-05-14 | Nettleton John E | Electronic selectable two-color solid state laser |
| US8213070B2 (en) * | 2009-05-06 | 2012-07-03 | Sandia Corporation | Wave-plate structures, power selective optical filter devices, and optical systems using same |
-
2009
- 2009-07-10 DE DE102009032803A patent/DE102009032803A1/de active Pending
-
2010
- 2010-07-09 EP EP10757150A patent/EP2452407A2/de not_active Ceased
- 2010-07-09 US US13/382,980 patent/US8982453B2/en active Active
- 2010-07-09 HU HUE21160423A patent/HUE072296T2/hu unknown
- 2010-07-09 WO PCT/EP2010/004187 patent/WO2011003618A2/de not_active Ceased
- 2010-07-09 EP EP21160423.6A patent/EP3876368B1/de active Active
Non-Patent Citations (2)
| Title |
|---|
| AIMÉ VAREILLE , PATRICE BALLET: "ELLIPSOMETRIE : Equations instrumentales", Retrieved from the Internet <URL:http://aime.vareille.pagesperso-orange.fr/pages/ellipsometrie/instruments.html> [retrieved on 20130412] * |
| J. GOVINDARAJAN, GROUP LEADER: "Zeeman Polarimetry: The Poincare Sphere", Retrieved from the Internet <URL:http://www.ipr.res.in/~othdiag/zeeman/poincare2.htm> [retrieved on 20130412] * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3876368A2 (de) | 2021-09-08 |
| US20120229888A1 (en) | 2012-09-13 |
| WO2011003618A2 (de) | 2011-01-13 |
| WO2011003618A3 (de) | 2011-12-29 |
| US8982453B2 (en) | 2015-03-17 |
| DE102009032803A1 (de) | 2011-01-13 |
| EP3876368B1 (de) | 2025-05-14 |
| EP3876368A3 (de) | 2021-12-22 |
| HUE072296T2 (hu) | 2025-11-28 |
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