DE102009036273A1 - Laser and method for generating pulsed laser radiation - Google Patents
Laser and method for generating pulsed laser radiation Download PDFInfo
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- DE102009036273A1 DE102009036273A1 DE200910036273 DE102009036273A DE102009036273A1 DE 102009036273 A1 DE102009036273 A1 DE 102009036273A1 DE 200910036273 DE200910036273 DE 200910036273 DE 102009036273 A DE102009036273 A DE 102009036273A DE 102009036273 A1 DE102009036273 A1 DE 102009036273A1
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- 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
- H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
- H01S3/131—Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
- H01S3/1312—Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the active medium, e.g. by controlling the processes or apparatus for excitation by controlling the optical pumping
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- 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
- H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
- H01S3/1106—Mode locking
- H01S3/1112—Passive mode locking
- H01S3/1115—Passive mode locking using intracavity saturable absorbers
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- 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
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/094026—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light for synchronously pumping, e.g. for mode locking
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- 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
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/094076—Pulsed or modulated pumping
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- 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
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/0941—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode
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- 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
- H01S3/102—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
- H01S3/1022—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the active medium, e.g. by controlling the processes or apparatus for excitation by controlling the optical pumping
- H01S3/1024—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the active medium, e.g. by controlling the processes or apparatus for excitation by controlling the optical pumping for pulse generation
-
- 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
- H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
- H01S3/1106—Mode locking
- H01S3/1121—Harmonically mode locking lasers, e.g. modulation frequency equals multiple integers or a fraction of the resonator roundtrip time
-
- 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
- H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
- H01S3/1305—Feedback control systems
-
- 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
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/16—Solid materials
- H01S3/1601—Solid materials characterised by an active (lasing) ion
- H01S3/1603—Solid materials characterised by an active (lasing) ion rare earth
- H01S3/1618—Solid materials characterised by an active (lasing) ion rare earth ytterbium
Abstract
Es wird bereitgestellt ein Laser zur Erzeugung gepulster Laserstrahlung, mit einem Resonator (3), einem im Resonator (3) angeordneten laseraktiven Medium (6), einem im Resonator angeordneten passiven Modenkoppler (7) für einen modengekoppelten Betrieb des Lasers (1) mit einer vorbestimmten Repetitionsfrequenz (f), einer Pumpquelle (8) zum Pumpen des laseraktiven Mediums (6) und einer Steuereinheit (9), die die Pumpquelle (8) ansteuert, wobei die Steuereinheit (9) die Pumpquelle (8) so ansteuert, daß die von der Pumpquelle (8) zum Pumpen des laseraktiven Mediums (6) abgegebene Pumpenergie einen Gleichanteil (Isowie Modulationspulse (P) mit einer Modulationsfrequenz (f) aufweist, die an die Repetitionsfrequenz angepaßt ist.A laser is provided for generating pulsed laser radiation, with a resonator (3), a laser-active medium (6) arranged in the resonator (3), a passive mode coupler (7) arranged in the resonator for mode-locked operation of the laser (1) with a predetermined repetition frequency (f), a pump source (8) for pumping the laser-active medium (6) and a control unit (9) which controls the pump source (8), wherein the control unit (9) controls the pump source (8) so that the pump energy emitted by the pump source (8) for pumping the laser-active medium (6) has a constant component (isow and modulation pulses (P) with a modulation frequency (f) which is adapted to the repetition frequency.
Description
Die
vorliegende Erfindung betrifft einen Laser zur Erzeugung gepulster
Laserstrahlung nach dem Oberbegriff des Anspruches 1.The
The present invention relates to a laser for generating pulsed
Laser radiation according to the preamble of
Bei einem solchen passiv modengekoppelten Laser besteht häufig die Schwierigkeit, das Anlaufen des modengekoppelten Betriebes zu gewährleisten. Um den Laser sicher in den modengekoppelten Betrieb zu bringen, wird daher beispielsweise die für den modengekoppelten Betrieb notwendige kontinuierliche Pumpenergie um bis zu 30% erhöht. Damit kann zwar eine Anlaufstabilisierung erreicht werden. Aufgrund der erhöhten Pumpenergie tritt jedoch eine höhere Belastung der optischen (reine optische und elektrooptische) Komponenten des Lasers auf, insbesondere des passiven Modenkopplers, der häufig als sättigbarer Absorber ausgebildet ist. Damit wird in unerwünschter Weise die Lebensdauer des Lasers reduziert.at Such a passive mode-locked laser is often the Difficulty to ensure the start of the mode-locked operation. To bring the laser safely into mode-locked operation, Therefore, for example, the for the mode-locked operation necessary continuous pump energy increased by up to 30%. Thus, although a start-up stabilization can be achieved. by virtue of the heightened Pump energy, however, occurs higher Loading the optical (pure optical and electro-optical) components of the laser, in particular the passive mode coupler, often called saturable Absorber is formed. This will undesirably the life reduced by the laser.
Ausgehend hiervon ist es Aufgabe der Erfindung, den Laser der eingangs genannten Art so weiterzubilden, daß eine Anlaufstabilisierung des modengekoppelten Betriebs des Lasers bei gleichzeitig verringerter Last der optischen Komponenten des Lasers erreicht werden kann.outgoing It is an object of the invention, the laser of the aforementioned To develop a kind so that a Start-up stabilization of mode-locked laser operation simultaneously reduced load of the optical components of the laser can be achieved.
Erfindungsgemäß wird die Aufgabe bei einem Laser der eingangs genannten Art dadurch gelöst, daß die Steuereinheit die Pumpquelle so ansteuert, daß die von der Pumpquelle zum Pumpen des laseraktiven Mediums abgegebene Pumpenergie einen Gleichanteil sowie Modulationspulse mit einer Modulationsfrequenz aufweist, die an die Repetitionsfrequenz angepaßt ist.According to the invention Task in a laser of the type mentioned solved in that the control unit the pump source drives so that the emitted by the pump source for pumping the laser-active medium Pump energy a DC component and modulation pulses with a modulation frequency has, which is adapted to the repetition frequency.
Durch diese Art des Pumpens kann die optische Last bzw. die optische Leistungsdichte der optischen und elektrooptischen Komponenten des Lasers drastisch verringert werden. Insbesondere kann dadurch erreicht werden, daß die optische Last am optischen Modenkoppler deutlich verringert ist, wodurch die Lebensdauer des Lasers insgesamt deutlich erhöht werden kann.By This type of pumping can be the optical load or the optical power density the optical and electro-optical components of the laser drastically be reduced. In particular, it can be achieved that the optical Load on the optical mode coupler is significantly reduced, thereby the lifetime of the laser can be significantly increased overall can.
Der Gleichanteil der Pumpenergie kann insbesondere so gewählt werden, daß nur mit dem Gleichanteil der modengekoppelte Betrieb des Lasers nicht erreicht werden kann. Somit kann die optische Belastung des Lasers auch während des modengekoppelten Betriebes deutlich im Vergleich zu bekannten Lösungen reduziert werden. Die durchschnittliche energetische Belastung des Lasers aufgrund der Pumpenergie kann somit sehr niedrig gehalten werden. Des weiteren weist der erfindungsgemäße Laser einen deutlich höheren Pumpenergiebereich auf, in dem ein stabiler modengekoppelter Betrieb möglich ist, im Vergleich zu herkömmlichen passiv modengekoppelten Lasern.Of the DC component of the pump energy can be chosen in particular so that only with the DC component, the mode-locked operation of the laser is not can be achieved. Thus, the optical load of the laser even while mode-locked operation significantly compared to known solutions be reduced. The average energetic load of the Lasers due to the pumping energy can thus be kept very low become. Furthermore, the laser according to the invention has a significantly higher pump energy range in which a stable mode-locked operation is possible, compared to conventional passive mode-locked lasers.
Der erfindungsgemäße Laser kann beispielsweise eine lange Resonatorlänge und damit Repetitionsfrequenzen im einstelligen MHz-Bereich oder darunter aufweisen. Solche Laser haben von sich aus eine intrinsisch schwache Neigung, den passiv modengekoppelten Betrieb zu starten und können durch das erfindungsgemäße Pumpen nun effizient gestartet werden.Of the inventive laser For example, a long resonator length and thus repetition frequencies in the single-digit MHz range or below. Such lasers have an intrinsically weak tendency, the passive one mode-locked operation to start and can by pumping the invention now be started efficiently.
Aufgrund der geringeren Belastung können die Anforderungen an die Komponenten des Lasers verringert werden, was auch zu geringeren Kosten führt, so daß der erfindungsgemäße Laser kostengünstig herstellbar ist.by virtue of the lower load can the Requirements for the components of the laser are reduced to what also leads to lower costs, so that the inventive laser economical can be produced.
Der Laser kann einen Sensor zur Messung der gepulsten Laserstrahlung aufweisen, der ein Meßsignal an die Steuereinheit abgibt, die in Abhängigkeit des Meßsignals die Pumpquelle ansteuert. Insbesondere kann die Steuereinheit die Größe des Gleichanteils der Pumpenergie und/oder die Pulshöhe der Modulationspulse der Pumpenergie regeln. Alternativ oder zusätzlich kann die Steuereinheit die Modulationsfrequenz der Modulationspulse regeln. Damit wird ein stabiler modengekoppelter Betrieb des Lasers ermöglicht.Of the Laser can be a sensor for measuring the pulsed laser radiation having a measuring signal to the control unit, which depends on the measured signal activates the pump source. In particular, the control unit can Size of the DC component the pump energy and / or the pulse height of the modulation pulses of the Regulate pump energy. Alternatively or additionally, the control unit regulate the modulation frequency of the modulation pulses. This will be a stable mode-locked operation of the laser allows.
Der Laser kann auch so betrieben werden, daß der Gleichanteil der Pumpenergie, die Pulshöhe der Modulationspulse und die Modulationsfrequenz der Modulationspulse konstant sind. Damit kann die Steuereinheit sowie der gesamte Laser relativ einfach aufgebaut werden.Of the Laser can also be operated so that the DC component of the pump energy, the pulse height of Modulation pulses and the modulation frequency of the modulation pulses are constant. This allows the control unit as well as the entire laser be relatively easy to set up.
Bei dem erfindungsgemäßen Laser entspricht die Modulationsfrequenz bevorzugt der Repetitionsfrequenz. Damit wird ein stabiler modengekoppelter Betrieb ermöglicht.at the laser according to the invention the modulation frequency preferably corresponds to the repetition frequency. This enables a stable mode-locked operation.
Der passive Modenkoppler kann insbesondere als sättigbarer Absorber (bevorzugt sättigbarer Halbleiterabsorber, der häufig auch SESAM genannt wird) ausgebildet sein. Durch das erfindungsgemäße Pumpen kann die optische Belastung des sättigbaren Absorbers minimiert werden, wodurch die Lebensdauer des Lasers erhöht werden kann.Of the Passive mode coupler can be used in particular as a saturable absorber (preferred saturable semiconductor absorber, the common also called SESAM) be formed. By the pump according to the invention can minimize the optical load on the saturable absorber which can increase the life of the laser.
Bei dem erfindungsgemäßen Laser kann die Steuereinheit nach einer vorbestimmten Zeitdauer nach Starten des modengekoppelten Betriebs des Lasers die Modulationsfrequenz auf eine Subharmonische (mit m ganze Zahl größer als 1) der Repetitionsfrequenz frep reduzieren und/oder die Pulshöhe der Modulationspulse reduzieren.In the case of the laser according to the invention, the control unit may, after a predetermined period of time after starting the mode-locked operation of the laser, set the modulation frequency to a subharmonic ( with m integer greater than 1) reduce the repetition frequency f rep and / or reduce the pulse height of the modulation pulses.
Damit kann die optische Belastung der Komponenten des Lasers im modengekoppelten Betrieb reduziert werden.In order to can the optical load of the components of the laser in the mode-locked Operation can be reduced.
Insbesondere kann die Steuereinheit nach einer vorbestimmten Zeitdauer nach Starten des modengekoppelten Betriebs des Lasers die Pumpquelle so ansteuern, daß die abgegebene Pumpenergie nur noch den Gleichanteil aufweist. In diesem Fall ist der Gleichanteil so gewählt, daß er zum Aufrechterhalten des modengekoppelten Betriebes geeignet ist.Especially the control unit may start after a predetermined period of time mode-locked operation of the laser drives the pump source so that the delivered pumping energy only has the DC component. In this Case, the DC component is chosen that he is suitable for maintaining the mode-locked operation.
Die Pumpquelle ist bei dem erfindungsgemäßen Laser bevorzugt als optische Pumpquelle ausgebildet. Sie kann z. B. einen Pumplaser, eine Pumpdiode oder eine Pumplaserdiode umfassen.The Pump source is preferred in the laser according to the invention as optical Pump source formed. You can z. B. a pump laser, a pump diode or a pump laser diode.
Es wird ferner ein Verfahren zur Erzeugung gepulster Laserstrahlung bei einem Laser mit einem Resonator, einem im Resonator angeordneten laseraktiven Medium, einem im Resonator angeordneten passiven Modenkoppler für einen modengekoppelten Betrieb des Lasers mit einer vorbestimmten Repetitionsfrequenz und einer Pumpquelle zum Pumpen des laseraktiven Mediums bereitgestellt, bei dem die Pumpquelle so angesteuert wird, daß die von der Pumpquelle zum Pumpen des laseraktiven Mediums abgegebene Pumpenergie einen Gleichanteil sowie Modulationspulse mit einer Modulationsfrequenz aufweist, die an die Repetitionsfrequenz angepaßt ist.It Furthermore, a method for generating pulsed laser radiation in a laser with a resonator, one arranged in the resonator laser-active medium, a arranged in the resonator passive mode coupler for one mode-locked operation of the laser at a predetermined repetition frequency and a pump source for pumping the laser active medium, in which the pump source is driven so that the pump source for Pumping the laser-active medium output pump energy a DC component and modulation pulses having a modulation frequency, the adapted to the repetition frequency.
Mit dem erfindungsgemäßen Verfahren wird eine verbesserte Anlaufstabilisierung zum Erreichen des modengekoppelten Betriebes erreicht. Ferner kann die optische Belastung dabei verringert werden. Darüber hinaus ist ein stabiler und dauerhafter modengekoppelter Betrieb des Lasers möglich.With the method according to the invention will provide improved start-up stabilization to achieve mode-locked Operation achieved. Furthermore, the optical load can be reduced become. About that In addition, a stable and durable mode-locked operation the laser possible.
Vorteilhafte Ausgestaltungen des erfindungsgemäßen Verfahrens sind in den abhängigen Verfahrensansprüchen angegeben.advantageous Embodiments of the method according to the invention are in the specified dependent method claims.
Es versteht sich, daß die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in den angegebenen Kombinationen, sondern auch in anderen Kombinationen oder in Alleinstellung einsetzbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It understands that the mentioned above and the features to be explained below not only in the specified combinations, but also in others Combinations or stand alone, without the frame to leave the present invention.
Nachfolgend wird die Erfindung beispielsweise anhand der beigefügten Zeichnungen, die auch erfindungswesentliche Merkmale offenbaren, noch näher erläutert. Es zeigen:following For example, with reference to the attached drawings, which also reveal features essential to the invention, explained in even greater detail. It demonstrate:
Bei
der in
Das
laseraktive Medium
Im
Betrieb wird die Pumpenergie, die die Pumplaserdiode
Die
Modulationsfrequenz fM ist hier so gewählt, daß sie der
Pulsfrequenz frep der gepulsten Laserstrahlung
Das
Tastverhältnis
des modulierten Pumpstromes sollte dem Tastverhältnis des Lasers bzw. Laseroszillators
Bei
dem hier gezeigten Beispiel beträgt
der Grundstromanteil I1 80 mA. Die Höhe ΔI der Modulationspulse
P beträgt
30 mA, so daß der
Strom I2 110 mA beträgt. Die Repetitionsfrequenz
im modengekoppelten Betrieb des Laseroszillators
Bei
der beschriebenen Ausführungsform sind
Grundstromanteil I1, Pulshöhe ΔI, Modulationsfrequenz
fM sowie Tastverhältnis des modulierten Pulsstromes
jeweils konstant, wodurch der Laser
In
Im
kontinuierlichen Betrieb (nicht modengekoppelter Betrieb) des Laseroszillators
Geht
der Laseroszillator
Für die Beurteilung
des Betriebszustandes des Laseroszillators
Das
Signal des Sensors
Voraussetzung hierfür ist, daß der modengekoppelte Betrieb des Laseroszillators durch die eingestellten Amplituden I1, I2 des Pumpstromes erreicht werden kann.The prerequisite for this is that the mode-locked operation of the laser oscillator can be achieved by the set amplitudes I 1 , I 2 of the pumping current.
Mittels
dem Sensor
Für die Startphase
des Laseroszillators
Natürlich kann
der Laseroszillator
Mit
dem erfindungsgemäßen Laser
bzw. Laseroszillator
Claims (20)
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DE200910036273 DE102009036273B4 (en) | 2009-08-05 | 2009-08-05 | Laser and method for generating pulsed laser radiation |
PCT/EP2010/060901 WO2011015492A1 (en) | 2009-08-05 | 2010-07-27 | Starting a passive mode-coupled laser by pump light modulation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE200910036273 DE102009036273B4 (en) | 2009-08-05 | 2009-08-05 | Laser and method for generating pulsed laser radiation |
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DE102009036273A1 true DE102009036273A1 (en) | 2011-02-10 |
DE102009036273B4 DE102009036273B4 (en) | 2014-11-13 |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2021146346A1 (en) * | 2020-01-14 | 2021-07-22 | Quantum-Si Incorporated | Amplitude-modulated laser |
US11249318B2 (en) | 2016-12-16 | 2022-02-15 | Quantum-Si Incorporated | Compact beam shaping and steering assembly |
US11322906B2 (en) | 2016-12-16 | 2022-05-03 | Quantum-Si Incorporated | Compact mode-locked laser module |
US11466316B2 (en) | 2015-05-20 | 2022-10-11 | Quantum-Si Incorporated | Pulsed laser and bioanalytic system |
US11567006B2 (en) | 2015-05-20 | 2023-01-31 | Quantum-Si Incorporated | Optical sources for fluorescent lifetime analysis |
US11747561B2 (en) | 2019-06-14 | 2023-09-05 | Quantum-Si Incorporated | Sliced grating coupler with increased beam alignment sensitivity |
US11808700B2 (en) | 2018-06-15 | 2023-11-07 | Quantum-Si Incorporated | Data acquisition control for advanced analytic instruments having pulsed optical sources |
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US4794615A (en) * | 1987-06-12 | 1988-12-27 | Spectra Diode Laboratories, Inc. | End and side pumped laser |
US20050163170A1 (en) * | 2002-03-13 | 2005-07-28 | Oleg Okhotnikov | Method for organizing a mode-locked pulse train by pump modulation |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3734560B2 (en) * | 1996-03-25 | 2006-01-11 | 浜松ホトニクス株式会社 | Ultra short pulse laser equipment |
WO2010064238A1 (en) * | 2008-12-03 | 2010-06-10 | V-Gen Ltd. | Gain-switched fiber laser |
-
2009
- 2009-08-05 DE DE200910036273 patent/DE102009036273B4/en active Active
-
2010
- 2010-07-27 WO PCT/EP2010/060901 patent/WO2011015492A1/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US4794615A (en) * | 1987-06-12 | 1988-12-27 | Spectra Diode Laboratories, Inc. | End and side pumped laser |
US20050163170A1 (en) * | 2002-03-13 | 2005-07-28 | Oleg Okhotnikov | Method for organizing a mode-locked pulse train by pump modulation |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11466316B2 (en) | 2015-05-20 | 2022-10-11 | Quantum-Si Incorporated | Pulsed laser and bioanalytic system |
US11567006B2 (en) | 2015-05-20 | 2023-01-31 | Quantum-Si Incorporated | Optical sources for fluorescent lifetime analysis |
US11249318B2 (en) | 2016-12-16 | 2022-02-15 | Quantum-Si Incorporated | Compact beam shaping and steering assembly |
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WO2011015492A1 (en) | 2011-02-10 |
DE102009036273B4 (en) | 2014-11-13 |
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