CN103594915A - Impulse sequence free regulation and control laser device and method for realizing impulse sequence free regulation and control through impulse sequence free regulation and control laser device - Google Patents
Impulse sequence free regulation and control laser device and method for realizing impulse sequence free regulation and control through impulse sequence free regulation and control laser device Download PDFInfo
- Publication number
- CN103594915A CN103594915A CN201310622452.9A CN201310622452A CN103594915A CN 103594915 A CN103594915 A CN 103594915A CN 201310622452 A CN201310622452 A CN 201310622452A CN 103594915 A CN103594915 A CN 103594915A
- Authority
- CN
- China
- Prior art keywords
- laser
- pulse train
- repetition frequency
- laser device
- control
- 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.)
- Pending
Links
Images
Landscapes
- Lasers (AREA)
Abstract
The invention discloses an impulse sequence free regulation and control laser device and a method for realizing impulse sequence free regulation and control through the impulse sequence free regulation and control laser device, and relates to an impulse laser device and a method for generating impulses through the impulse laser device. The impulse sequence free regulation and control laser device comprises a repetition frequency laser oscillator, a laser isolation system and an impulse sequence regulation and control device in sequence in the beam propagation direction. The method is implemented according to the following steps: step one, the high repetition frequency laser oscillator generates high repetition frequency laser impulses; step two, the impulse sequence regulation and control device is used for selecting the generated high repetition frequency laser impulses to form a new impulse sequence, and conducting free regulation and control over the number of the impulses in the new impulse sequence and the repetition frequency of the sequence at the same time. According to the impulse sequence free regulation and control laser device, the repetition frequency of the impulse sequence and the number of the impulses in the sequence can be controlled flexibly, and after output impulses are amplified, laser output with both high repetition frequency and high impulse energy an be realized within a certain period of time.
Description
Technical field
The present invention relates to a kind of pulse laser and utilize this device to realize the method for pulse, relate in particular to a kind of pulse train and freely regulate and control laser and utilize this device to realize the method that pulse train freely regulates and controls.
Background technology
Owing to having the problem of restriction mutually between the high repetition frequency of conventional pulse laser and high energy, the macro-energy that is difficult to get both output, and the laser that pulse train freely regulates and controls, to a certain extent head it off when obtaining high repetition frequency.From high Repetition Frequency Laser pulse, selected part pulse forms pulse train, in pulse train, pulse number is controlled by electro-optical device, by efficient laser amplifier, make the pulse train of choosing there is higher single pulse energy again, so both guarantee the high repetition frequency of laser pulse within a period of time, realized again higher single pulse energy.
Summary of the invention
A difficult problem that is difficult to take into account output in order to solve high repetition frequency and high energy in conventional pulse laser, the invention provides a kind of pulse train freely regulates and controls laser and utilizes this device to realize the method that pulse train freely regulates and controls, in pulse train repetition and sequence, pulse number is controlled flexibly, this laser, after being aided with amplifying technique, can be realized the Laser output that high repetition and high single pulse energy get both within a period of time.
Pulse train of the present invention freely regulates and controls laser, along direction of beam propagation, is disposed with Repetition Frequency Laser oscillator, laser shielding system and pulse train regulation device; Described high Repetition Frequency Laser oscillator comprises conductor Laser pumping source, the first non-spherical lens, the second non-spherical lens, laser front cavity mirror, laser crystal, Q switching and the laser output mirror setting gradually, and laser front cavity mirror and laser output mirror form the resonant cavity of high Repetition Frequency Laser oscillator; Described laser shielding system comprises polarizer, isolator, λ/2 wave plate setting gradually; Described pulse train regulation device comprises polarizer, Pockers cell and the total reflective mirror setting gradually.
Utilize said apparatus to realize the method that pulse train freely regulates and controls, by following steps, realized:
Step 1, by high Repetition Frequency Laser oscillator, produce high repetition frequency laser pulse;
In the pulse train repetition of laser of the present invention and sequence, pulse number can be controlled flexibly, and this output pulse is aided with after amplifying technique, can realize within a certain period of time the Laser output that high repetition and high energy are taken into account.
Accompanying drawing explanation
Fig. 1 is the structural representation of the laser that freely regulates and controls of pulse train of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is further described; but be not limited to this; every technical solution of the present invention is modified or is equal to replacement, and not departing from the spirit and scope of technical solution of the present invention, all should be encompassed in protection scope of the present invention.
Embodiment one: as shown in Figure 1, the laser device that present embodiment provides a kind of pulse train freely to regulate and control, comprises the Repetition Frequency Laser oscillator I, laser shielding system and the pulse train regulation device II that set gradually along direction of beam propagation.Described high Repetition Frequency Laser oscillator I comprises conductor Laser pumping source 1, the first non-spherical lens 2, the second non-spherical lens 3, laser front cavity mirror 4, laser crystal 5, Q switching 6 and the laser output mirror 7 setting gradually, and laser front cavity mirror 4 and laser output mirror 7 form the resonant cavity of high Repetition Frequency Laser oscillator; Described laser shielding system comprises polarizer 8, isolator 9 and λ/2 wave plate 10 setting gradually; Described pulse train regulation device II comprises polarizer 11, Pockers cell 12 and the total reflective mirror 13 setting gradually.
After semiconductor pumping sources 1 is exported by coupling fiber, after the first non-spherical lens 2 and the second non-spherical lens 3, focus in laser crystal 5; The laser photon giving off comes and goes vibration and amplifies between laser front cavity mirror 4, laser crystal 5 and laser output mirror 7, under Q switching 6 effects, after laser output mirror 7, exports high repeat frequency pulsed laser.After the laser shielding system that high repeat frequency pulsed laser consists of polarizer 8, isolator 9 and λ/2 wave plate 10, again enter to inject in the pulse controlling device being formed by polarizer 11, Pockers cell 12 and total reflective mirror 13.While loading quarter-wave voltage on Pockers cell 12, within the duration of quarter-wave voltage, the pulse number of output some; Pulse train repetition determines by the repetition of quarter-wave voltage signal, and in sequence, pulse number is determined jointly by duration and the high Repetition Frequency Laser oscillator stage pulse repetition frequency of quarter-wave voltage signal.
In present embodiment, described semiconductor laser pumping source 1, the first non-spherical lens 2, the second non-spherical lens 3, laser front cavity mirror 4, laser crystal 5, Q switching 6, laser output mirror 7, polarizer 8, isolator 9, λ/2 wave plate 10, polarizer 11, Pockers cell 12 and total reflective mirror 13 are coaxially placed.
In present embodiment, described the first non-spherical lens 2 and the second non-spherical lens 3 are near placing; Distance 15cm between laser front cavity mirror 4 and laser output mirror 7, and meet laser resonance condition; The focus of the second non-spherical lens 3 need be in laser crystal 5.
In present embodiment, described Q switching 6 can be that acoustooptic Q-switching, electric light Q open the light or saturable absorption sheet Q switching.
In present embodiment, the focal distance ratio of described the first non-spherical lens 2 and the second non-spherical lens 3 is between 1:1 ~ 1:1.5.
In present embodiment, the pump light that described conductor Laser pumping source 1 sends focuses on laser crystal 5 inside.
In present embodiment, described polarizer 8 and isolator 9 effects are to make laser signal one-way trip, prevent that feedback laser from entering high Repetition Frequency Laser oscillator stage and affecting pulse stability.λ/2 wave plate 10 is for 45 of the rotation of compensating polarizing axle
oangle, offer convenience to optical path adjusting below.
In present embodiment, described Pockers cell 12, for pulse train regulation and control, is responsible for the control of the interior pulse number of sequence and sequence repetition.
In present embodiment, the Pockers cell 12 of described control impuls sequence regulation and control, its high voltage source output should be the adjustable high-voltage signal of duty ratio.Pulse train repetition determines by the repetition of high-voltage signal, and in sequence, pulse number is determined jointly by high-voltage signal duration and high Repetition Frequency Laser oscillator stage pulse repetition frequency.
Embodiment two: present embodiment utilizes device described in embodiment one to realize the method that pulse train freely regulates and controls, and is realized by following steps:
Step 1, by high Repetition Frequency Laser oscillator, produce high repetition frequency laser pulse;
Claims (7)
1. pulse train freely regulates and controls laser device, it is characterized in that described device is disposed with Repetition Frequency Laser oscillator, laser shielding system and pulse train regulation device along direction of beam propagation; Described high Repetition Frequency Laser oscillator comprises conductor Laser pumping source, the first non-spherical lens, the second non-spherical lens, laser front cavity mirror, laser crystal, Q switching and the laser output mirror setting gradually, and laser front cavity mirror and laser output mirror form the resonant cavity of high Repetition Frequency Laser oscillator; Described laser shielding system comprises polarizer, isolator, λ/2 wave plate setting gradually; Described pulse train regulation device comprises polarizer, Pockers cell and the total reflective mirror setting gradually.
2. pulse train according to claim 1 freely regulates and controls laser device, it is characterized in that the distance between described laser front cavity mirror and laser output mirror is 15cm.
3. pulse train according to claim 1 freely regulates and controls laser device, it is characterized in that the focus of described the second non-spherical lens is in laser crystal.
4. pulse train according to claim 1 freely regulates and controls laser device, it is characterized in that described Q switching is that acoustooptic Q-switching, electric light Q open the light or saturable absorption sheet Q switching.
5. pulse train according to claim 1 freely regulates and controls laser device, it is characterized in that the focal distance ratio of described the first non-spherical lens and the second non-spherical lens is between 1:1 ~ 1:1.5.
6. pulse train according to claim 1 freely regulates and controls laser device, it is characterized in that the pump light that described conductor Laser pumping source sends focuses on laser crystal inside.
7. utilize pulse train described in the arbitrary right of claim 1-6 freely to regulate and control laser device and realize the method that pulse train freely regulates and controls, it is characterized in that described method is realized by following steps:
Step 1, by high Repetition Frequency Laser oscillator, produce high repetition frequency laser pulse;
Step 2, by pulse train regulation device, the high Repetition Frequency Laser pulse producing is chosen, formed new pulse train, the repetition rate of the pulse number in new pulse train and sequence is carried out to free regulation and control simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310622452.9A CN103594915A (en) | 2013-11-30 | 2013-11-30 | Impulse sequence free regulation and control laser device and method for realizing impulse sequence free regulation and control through impulse sequence free regulation and control laser device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310622452.9A CN103594915A (en) | 2013-11-30 | 2013-11-30 | Impulse sequence free regulation and control laser device and method for realizing impulse sequence free regulation and control through impulse sequence free regulation and control laser device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103594915A true CN103594915A (en) | 2014-02-19 |
Family
ID=50084950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310622452.9A Pending CN103594915A (en) | 2013-11-30 | 2013-11-30 | Impulse sequence free regulation and control laser device and method for realizing impulse sequence free regulation and control through impulse sequence free regulation and control laser device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103594915A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110752507A (en) * | 2019-09-04 | 2020-02-04 | 南京理工大学 | Multi-pulse laser sequence generator with controllable pulse period and sequence length |
| CN111992544A (en) * | 2020-08-24 | 2020-11-27 | 中国科学院半导体研究所 | Acousto-optic Q double-pulse laser paint removing method |
| CN113078544A (en) * | 2021-03-26 | 2021-07-06 | 长春理工大学 | Laser and method for realizing pulse group laser output based on cavity emptying group |
| CN114035647A (en) * | 2021-11-23 | 2022-02-11 | 哈尔滨工业大学 | Pulse power device for generating disturbance magnetic field |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1361565A (en) * | 2000-12-25 | 2002-07-31 | 哈尔滨工业大学 | Non-resonance cavity light parametric oscillator |
| CN101000407A (en) * | 2007-01-12 | 2007-07-18 | 中国科学院上海光学精密机械研究所 | Beam splitting device and method of linear polarization laser double-pulse of adjustable pulse space |
-
2013
- 2013-11-30 CN CN201310622452.9A patent/CN103594915A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1361565A (en) * | 2000-12-25 | 2002-07-31 | 哈尔滨工业大学 | Non-resonance cavity light parametric oscillator |
| CN101000407A (en) * | 2007-01-12 | 2007-07-18 | 中国科学院上海光学精密机械研究所 | Beam splitting device and method of linear polarization laser double-pulse of adjustable pulse space |
Non-Patent Citations (1)
| Title |
|---|
| 金凤文，等: "LD单端泵浦Nd：GdVO4声光调Q高重频窄脉宽激光器", 《红外与激光工程》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110752507A (en) * | 2019-09-04 | 2020-02-04 | 南京理工大学 | Multi-pulse laser sequence generator with controllable pulse period and sequence length |
| CN110752507B (en) * | 2019-09-04 | 2021-10-26 | 南京理工大学 | Multi-pulse laser sequence generator with controllable pulse period and sequence length |
| CN111992544A (en) * | 2020-08-24 | 2020-11-27 | 中国科学院半导体研究所 | Acousto-optic Q double-pulse laser paint removing method |
| CN111992544B (en) * | 2020-08-24 | 2022-07-26 | 中国科学院半导体研究所 | Acousto-optic Q double-pulse laser paint removing method |
| CN113078544A (en) * | 2021-03-26 | 2021-07-06 | 长春理工大学 | Laser and method for realizing pulse group laser output based on cavity emptying group |
| CN114035647A (en) * | 2021-11-23 | 2022-02-11 | 哈尔滨工业大学 | Pulse power device for generating disturbance magnetic field |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105960742B (en) | High power ultra-short pulse optical fiber laser | |
| US8149886B2 (en) | Laser amplifier system and laser amplifier method | |
| CN102904155B (en) | Full solid state picosecond laser regenerative amplifier | |
| JP2013520846A5 (en) | ||
| CN102510001B (en) | Frequency-doubling green light laser | |
| CN106684688B (en) | A kind of pulse energy and the adjustable regenerative amplification device of time interval | |
| CN103594915A (en) | Impulse sequence free regulation and control laser device and method for realizing impulse sequence free regulation and control through impulse sequence free regulation and control laser device | |
| CN104201547A (en) | Integrated ultrashort pulse laser system with fiber-optic seed and integrated ultrashort pulse laser multiplier system with fiber-optic seed | |
| CN104078826A (en) | Subpicosecond large-mode-field-area photonic crystal fiber SESAM mode-locked laser | |
| CN204927799U (en) | Long pulsed laser of high -energy obtains device | |
| CN105244747A (en) | High-energy long pulse laser obtaining device, method and application | |
| CN101478111B (en) | Process for generating low repeat frequency ultra-short laser pulse | |
| CN106253043B (en) | A kind of adjustable burst pulse laser regenerative amplifier of temporal envelope pattern | |
| CN104242037A (en) | Method and device for obtaining pulse string laser through itracavity modulation | |
| CN105470793A (en) | Device and method for achieving stable dual-frequency laser output by using etalon and electro-optical crystal | |
| CN115377786B (en) | System and method for improving laser pulse time domain contrast | |
| KR101725133B1 (en) | Apparatus for generating single polarization fiber laser | |
| CN103618208A (en) | Mini-type integrated nanosecond pulse laser module coupled through optical fiber | |
| CN107086431B (en) | Drive the production method and device of the incoherent laser pulse of complicated shape of fusion impact igniting | |
| CN107706733B (en) | Method for generating subnanosecond pulse laser | |
| US20120307847A1 (en) | Laser apparatus | |
| CN108306167B (en) | A kind of multichannel mode-locked all fibre resonant cavity | |
| CN107887784B (en) | A kind of nanosecond pulse optical fiber laser | |
| CN105811227A (en) | Femtosecond ultra-flattened supercontinuum laser obtaining method | |
| CN111628401B (en) | Laser power stabilizing method and laser power amplifying system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140219 |
|
| RJ01 | Rejection of invention patent application after publication |