WO2015180762A1 - Procédé de génération d'un train d'impulsions optiques à stabilisation de phase entre porteuse et enveloppe par décalage spectral au moyen d'un peigne de fréquence acoustique - Google Patents
Procédé de génération d'un train d'impulsions optiques à stabilisation de phase entre porteuse et enveloppe par décalage spectral au moyen d'un peigne de fréquence acoustique Download PDFInfo
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- WO2015180762A1 WO2015180762A1 PCT/EP2014/061000 EP2014061000W WO2015180762A1 WO 2015180762 A1 WO2015180762 A1 WO 2015180762A1 EP 2014061000 W EP2014061000 W EP 2014061000W WO 2015180762 A1 WO2015180762 A1 WO 2015180762A1
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Classifications
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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
- H01S3/005—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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
- G01J9/02—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by interferometric methods
-
- 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
- H01S3/0085—Modulating the output, i.e. the laser beam is modulated outside the laser cavity
-
- 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
- H01S3/1003—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 tunable optical elements, e.g. acousto-optic filters, tunable gratings
-
- 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
- H01S3/1307—Stabilisation of the phase
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2203/00—Function characteristic
- G02F2203/56—Frequency comb synthesizer
-
- 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
- H01S3/10015—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers by monitoring or controlling, e.g. attenuating, the input signal
Definitions
- the invention relates to a device and method for generating a driver signal, with which an acousto-optical device can be controlled, so that by means of the acousto-optic device, the carrier envelope phase for every Nth laser pulse of the train temporally equidistant short laser pulses is corrected to the same fixed phase value, where N is a natural number.
- Displacement frequency f k so that for each individual frequency component K M an integer M exists, so that the frequency f M of this individual
- this ultrasonic signal is referred to as an acoustic frequency comb or acoustic frequency comb signal. Decisive here is a fixed phase position of the individual frequency components in the acoustic frequency comb.
- Refresh rates are provided, which correspond to an Nth part of a repetition rate at which a mode-locked laser generates short laser pulses in a train of short laser pulses, comprising the steps:
- Frequency difference corresponding to the Nth part of the repetition rate can be synthesized such that a pulse generator which generates temporally short pulses with a sufficient slope is driven at a frequency corresponding to the Nth part of the repetition rate. Generation of short electrical pulses of sufficient edge steepness at a repetition rate corresponding to the Nth part of the repetition rate thus produces a desired offset-free frequency comb.
- an electrical offset-free frequency comb signal deriving an electrical offset-free frequency comb signal from the second detected input signal by generating short, equally spaced electrical pulses with steep pulse edges at a rate equal to the Nth part of the repetition rate, thereby producing an offset-free frequency comb signal whose frequency spectrum is offset-free Frequency comb in which the frequency components have a frequency spacing corresponding to the Nth part of the repetition rate;
- the divider device is designed as a digital divider whose output signal supplies the offset-free frequency comb signal.
- a multistage mixing process is preferably carried out in order to ensure that no portions of the offset-free frequency comb signal are contained in the generated electrical offset-affected frequency comb signal.
- an electronic mixture of the low-pass filtered offset-free frequency comb signal and the correction-mix signal is performed to generate a high-frequency shifted electrical offset frequency comb signal
- Interaction zone is adjusted. If, for example, the interaction zone extends two millimeters and the speed of sound in the acousto-optic medium is 4 km / s, the result is a minimally required duration of the acoustic pulse of 0.5
- Phase modulator is inserted.
- phase modulator can be the phase of the acoustic field in the interaction zone, which can be exploited to selectively generate optical pulses with a certain desired carrier envelope phase at the output of the optical amplifier or a downstream experiment.
- the carrier envelope offset frequency f C Eo is now slowly drifting over a large range, then the unintentional phase drift is impressed on the first detected signal, which represents the carrier envelope offset frequency, which is finally impressed on the synthesized acoustic frequency comb signal transmits and thus also changes the carrier envelope phase of the optical output pulse. This drift can be compensated by feedback to a phase modulator.
- Fig. 8 is yet another device for generating reinforced in terms of
- the mixed signal generating device 60 provides a frequency sweep mixing signal S M s2 63 having a frequency f M s2 which corresponds to an integer multiple n 'of the repetition rate of the laser pulses 7 in the train 5 of short pulses 7 equidistant in time.
- a frequency offset mixer 57 a shift of the filtered signal 52 whose frequency spectrum represents the offset-affected frequency comb is thus generated such that its frequency spectrum has the offset-prone frequency comb in the frequency range coinciding with the working range of the acousto-optic component 15.
- offset frequency comb 181 which is offset in a frequency range, so that there are no more or almost no frequency components in that frequency range 182 coincident with a working range of the acousto-optic device used for the correction.
- this associated output of the correction mixer is passed through a filter which eliminates these respective frequency components. This is not indicated in Fig. 2a.
- Phase grating 313 in Fig. 4b is shifted by ⁇ .
- the carrier envelope phase of the first-order diffracted laser pulse is also shifted by ⁇ .
- the acoustic wave packet has the correct phase on arrival of the laser pulse propagating at an order of magnitude faster in the interaction zone.
- the exact frequency of the wave packet and thus the phase grating produced thereby is irrelevant.
- the optical signal collinearly propagates with the acoustic signal in such a filter, i. the output beam is parallel to
- FIGS. 6a and 6b show the passage of a laser pulse through an acousto-optic dispersive filter 401.
- the acousto-optic dispersive filter 401 comprises a birefringent material.
- a converter 305 converts the drive signal 307 into acoustic oscillations.
- An acoustic signal 309 which has short temporally equidistant ultrasonic wave pacts or ultrasonic pulses 31 1, propagates in the birefringent material and is reflected at an end face 308 to give reflected acoustic ultrasonic pulses representing the acoustic frequency comb and in the passage direction of the light propagate.
- the center ray 315 of the light is indicated by a long dashed line.
- a dashed line 316 oriented perpendicular thereto indicates the maximum of the electric field strength. In FIG. 6 a, the maximum of the field strength coincides with the maximum of the field strength
- the embodiments of the method and the device for generating a driver signal proposed here require only one control loop and can correct and stabilize both fast and slow fluctuations and shifts of the carrier envelope phase with a high control bandwidth.
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
L'invention concerne un dispositif (21) et un procédé de génération d'un signal d'attaque permettant d'exciter un composant acousto-optique (15) afin de corriger au moyen dudit composant acousto-optique la phase porteuse/enveloppe pour chaque Nième impulsion laser du train (5) d'impulsions laser courtes équidistantes dans le temps à la même valeur de phase fixe. Pour cela, selon l'invention, le signal d'attaque est généré sous la forme d'un signal de peigne de fréquence électrique présentant un décalage dont le spectre fréquentiel comporte simultanément une pluralité de composantes de fréquence discrètes. Des composantes de fréquence voisines dans le spectre présentent un écart de fréquence (Δf = fREP/N) qui correspond à une Nième partie de la fréquence de répétition (fREP), et chacune des composantes de fréquence discrètes peut être associée individuellement à un nombre entier M de telle sorte que la fréquence fM de cette composante de fréquence discrète individuelle KM peut s'exprimer mathématiquement par la somme de la fréquence de décalage porteuse/enveloppe fCEO, identique pour toutes les composantes de fréquence, et par un produit formé pour chaque composante de fréquence individuelle en multipliant ledit nombre entier M associé individuellement par la Nième partie de la fréquence de répétition (fREP) des impulsions laser dans le train d'impulsions laser courtes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2014/061000 WO2015180762A1 (fr) | 2014-05-27 | 2014-05-27 | Procédé de génération d'un train d'impulsions optiques à stabilisation de phase entre porteuse et enveloppe par décalage spectral au moyen d'un peigne de fréquence acoustique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2014/061000 WO2015180762A1 (fr) | 2014-05-27 | 2014-05-27 | Procédé de génération d'un train d'impulsions optiques à stabilisation de phase entre porteuse et enveloppe par décalage spectral au moyen d'un peigne de fréquence acoustique |
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| Publication Number | Publication Date |
|---|---|
| WO2015180762A1 true WO2015180762A1 (fr) | 2015-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/EP2014/061000 WO2015180762A1 (fr) | 2014-05-27 | 2014-05-27 | Procédé de génération d'un train d'impulsions optiques à stabilisation de phase entre porteuse et enveloppe par décalage spectral au moyen d'un peigne de fréquence acoustique |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109155500A (zh) * | 2016-03-31 | 2019-01-04 | Ipg光子公司 | 利用强度脉冲形状校正的超快脉冲激光器系统 |
| CN113324666A (zh) * | 2021-05-28 | 2021-08-31 | 中国科学院西安光学精密机械研究所 | 飞秒激光脉冲载波包络相位偏移频率探测装置及方法 |
| CN116609956A (zh) * | 2023-07-21 | 2023-08-18 | 北京盛镭科技有限公司 | 一种高频信号的选单装置以及激光放大系统 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19911103A1 (de) | 1999-03-12 | 2000-09-21 | Max Planck Gesellschaft | Erzeugung stabilisierter, ultrakurzer Lichtpulse und deren Anwendung zur Synthese optischer Frequenzen |
| DE102008059902B3 (de) | 2008-12-02 | 2010-09-16 | Forschungsverbund Berlin E.V. | Verfahren und Vorrichtung zum Erzeugen eines selbstrefernzierten optischen Frequenzkamms |
| DE102013209848B3 (de) * | 2013-01-16 | 2014-06-26 | Femtolasers Produktions Gmbh | Verfahren zum Erzeugen eines optischen Pulszugs mit stabilisierter Phase zwischen Träger und Einhüllender mittels spektraler Verschiebung durch einen akustischen Frequenzkamm |
-
2014
- 2014-05-27 WO PCT/EP2014/061000 patent/WO2015180762A1/fr active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19911103A1 (de) | 1999-03-12 | 2000-09-21 | Max Planck Gesellschaft | Erzeugung stabilisierter, ultrakurzer Lichtpulse und deren Anwendung zur Synthese optischer Frequenzen |
| DE102008059902B3 (de) | 2008-12-02 | 2010-09-16 | Forschungsverbund Berlin E.V. | Verfahren und Vorrichtung zum Erzeugen eines selbstrefernzierten optischen Frequenzkamms |
| DE102013209848B3 (de) * | 2013-01-16 | 2014-06-26 | Femtolasers Produktions Gmbh | Verfahren zum Erzeugen eines optischen Pulszugs mit stabilisierter Phase zwischen Träger und Einhüllender mittels spektraler Verschiebung durch einen akustischen Frequenzkamm |
Non-Patent Citations (11)
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| B. BORCHERS ET AL., OPTICS LETTERS, vol. 36, 2011, pages 4146 |
| BASTIAN BORCHERS ET AL: "Acoustic frequency combs for carrier-envelope phase stabilization", OPTICS LETTERS, OPTICAL SOCIETY OF AMERICA, vol. 39, no. 3, 1 February 2014 (2014-02-01), pages 544 - 547, XP001587128, ISSN: 0146-9592, [retrieved on 20140123], DOI: 10.1364/OL.39.000544 * |
| BORCHERS B ET AL: "Carrier-envelope phase stabilization with sub-10 as residual timing jitter", OPTICS LETTERS, OPTICAL SOCIETY OF AMERICA, vol. 36, no. 21, 1 November 2011 (2011-11-01), pages 4146 - 4148, XP001570728, ISSN: 0146-9592, [retrieved on 20111019], DOI: 10.1364/OL.36.004146 * |
| CANOVA, OPTICS LETTERS, vol. 34, 2009, pages 1333 |
| F. LÜCKING ET AL., OPTICS LETTERS, vol. 37, 2012, pages 2076 |
| FABIAN LÜCKING ET AL: "Long-term carrier-envelope-phase-stable few-cycle pulses by use of the feed-forward method", OPTICS LETTERS, OPTICAL SOCIETY OF AMERICA, vol. 37, no. 11, 1 June 2012 (2012-06-01), pages 2076 - 2078, XP001575900, ISSN: 0146-9592, [retrieved on 20120530], DOI: 10.1364/OL.37.002076 * |
| VON B. BORCHERS ET AL., OPTICS LETTERS, vol. 36, 2011, pages 4146 |
| VON H.R. TEILE ET AL.: "Carrier-envelope offset phase control: A novel concept for absolute optical frequency measurement and ultrashort pulse generation", APPL. PHYS. B, vol. 69, 1999, pages 327 FF |
| VON HERMANN A HAUS: "Waves and Fields in Optoelectronics", 1983, PRENTICE HALL |
| VON L. XU ET AL.: "Route to phase control of ultrashort light pulses", OPTICS LETTERS, vol. 21, 1996, pages 2008 FF |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109155500A (zh) * | 2016-03-31 | 2019-01-04 | Ipg光子公司 | 利用强度脉冲形状校正的超快脉冲激光器系统 |
| JP2019513306A (ja) * | 2016-03-31 | 2019-05-23 | アイピージー フォトニクス コーポレーション | 強度パルス形状修正を利用する超高速パルスレーザーシステム |
| EP3417516A4 (fr) * | 2016-03-31 | 2019-10-16 | IPG Photonics Corporation | Système laser à impulsions ultrarapides utilisant une correction de forme d'impulsion d'intensité |
| CN109155500B (zh) * | 2016-03-31 | 2021-06-15 | Ipg光子公司 | 利用强度脉冲形状校正的超快脉冲激光器系统 |
| CN113324666A (zh) * | 2021-05-28 | 2021-08-31 | 中国科学院西安光学精密机械研究所 | 飞秒激光脉冲载波包络相位偏移频率探测装置及方法 |
| CN116609956A (zh) * | 2023-07-21 | 2023-08-18 | 北京盛镭科技有限公司 | 一种高频信号的选单装置以及激光放大系统 |
| CN116609956B (zh) * | 2023-07-21 | 2023-09-19 | 北京盛镭科技有限公司 | 一种高频信号的选单装置以及激光放大系统 |
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