CN1450693A - Stark chirp pulse time stretcher - Google Patents
Stark chirp pulse time stretcher Download PDFInfo
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- CN1450693A CN1450693A CN 03116897 CN03116897A CN1450693A CN 1450693 A CN1450693 A CN 1450693A CN 03116897 CN03116897 CN 03116897 CN 03116897 A CN03116897 A CN 03116897A CN 1450693 A CN1450693 A CN 1450693A
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- laser
- stark
- pulse time
- medium
- light source
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- 238000005086 pumping Methods 0.000 claims abstract description 18
- 230000003287 optical effect Effects 0.000 claims abstract description 7
- 239000006185 dispersion Substances 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims description 5
- 238000004471 energy level splitting Methods 0.000 claims description 4
- 239000013307 optical fiber Substances 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 description 2
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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Abstract
A stark chirp pulse time stretcher is divided into two paths according to the propagation direction of light, wherein one path is a first laser pump source, a first laser light source, a medium working chamber and a receiving device, the other path is a second laser pump source, a second laser light source, a polarizer, a beam expander and a medium working chamber, a vacuum pump is connected into the medium working chamber through a vacuum pumping pipe, and the medium working chamber is provided with an air inlet hole and an air outlet hole for entering a working medium; the tunable laser emitted by the second laser source is polarized by the polarizer and then enters the beam expander for beam expansion, the expanded tunable laser beam excites the working medium to split corresponding energy levels in the working medium, the optical pulse emitted by the first laser source enters the working medium chamber, the optical pulse generates dispersion in the working medium chamber, and the optical pulse is widened in transmission time. The technical problem that no practical instrument for expanding the stark chirp pulse time in the prior art is available is solved.
Description
Technical field:
The present invention relates to Stark chirped pulse time explanation, particularly a kind of being used for according to the optical system of controllable way to Stark chirped pulse time explanation.
Background technology:
The mechanism and the related experiment of the transparent and hypersorption that the people such as (A.M.Akulshin) of Ao Kusen in the prior art has produced when having discussed in " in the atomic media light propagate inverse signal scattering " (Light propagation in an atomic medium with steepand sign-reversible dispersion) literary composition and having propagated in atomic medium about pulsed light, but a kind of practical instrument of Stark chirped pulse time explanation is not provided.
Summary of the invention:
The present invention will solve the technical problem of the practical instrument that does not have Stark chirped pulse time explanation in the prior art, utilizes light pulse to pass through the working media that energy level has divided, and makes light pulse broadened on the transmission time.
Technical solution of the present invention is as follows:
A kind of Stark chirped pulse time explanation device, it is characterized in that: this stretcher is divided into two the tunnel according to the direction of propagation of light, one the tunnel is first laser pumping source, first LASER Light Source, medium operating room, receiving system, another road is second laser pumping source, second LASER Light Source, polarimeter, beam expander, medium operating room, vacuum pump is connected in the medium operating room by vacuum-pumping tube, and the medium operating room is furnished with air admission hole and the venthole that enters working media; Second LASER Light Source is launched tunable laser and is entered after polarimeter rises partially and expand bundle in the beam expander, expands the tunable laser light beam I behind the bundle
2Enter the medium operating room and working media is excited, make the corresponding energy level splitting in the working media, the light pulse I of first LASER Light Source emission
PulseEnter the working media chamber, light pulse I
PulseProduce chromatic dispersion in the working media that energy level has divided, light pulse is broadened on the transmission time, and the light pulse of outgoing is transported on the receiving system.
First and second laser pumping source is laser diode or laser.
First and second LASER Light Source is optical fiber solid state laser or semiconductor laser or solid-state laser or gas laser or chemical laser.
This polarimeter is level crossing or the half-wave plate or the Ni Keer prism of a plating polarizing coating.
This beam expander is Galilean telescope or amplifying lens group.
This vacuum pump is mechanical pump or molecular pump or diffusion pump.
This receiving system is CCD diode array detector or photodiode, or the operative installations in photomultiplier or multichannel plate or oscilloscope or computer or the optical engineering.
The advantage of Stark chirped pulse time explanation device of the present invention:
1, use Stark chirped pulse time explanation device of the present invention can realize Stark chirped pulse controlled broadening (different frequency in the pulse envelope has different speed and broadening under the nonlinear optics effect) in time;
2, the spendable material of Stark chirped pulse time explanation device working media is more;
3, can be used for realizing in the engineering optics system kind many (as beam shapings) of Stark chirped pulse time explanation device.
Description of drawings:
Fig. 1 is a Stark chirped pulse time explanation device most preferred embodiment structural representation of the present invention.
Among the figure:
1-laser pumping source; 2-LASER Light Source; The air admission hole of 3-working media chamber;
4-working media chamber; 5-receiving system; The venthole of 6-working media chamber;
7-vacuum-pumping tube; 8-vacuum pump; 9-beam expander;
10-polarimeter; 11-LASER Light Source; 12-laser pumping source
Embodiment
See also Fig. 1 earlier, Fig. 1 is the structural representation of Stark chirped pulse time explanation device most preferred embodiment of the present invention, as seen from the figure, Stark chirped pulse time explanation device of the present invention, comprise, most crucial element is medium operating room 4,4 surperficial F are connected to the medium operating room 4 vacuum pump 8 from the medium operating room by vacuum-pumping tube 7, LASER Light Source 2 and laser pumping source 1 place before the medium operating room 4, the working media inlet is on the 4 surperficial E of medium operating room, the lower right-hand corner of working media outlet 6 on the 4 surperficial B of medium operating room, medium operating room 4 is at A, B, C and D surface have logical light window respectively, after laser pumping source 12 and the LASER Light Source 11 is polarimeter 10, and beam expander 9 places after the polarimeter 10, and receiving system 5 places after the medium operating room 4.
Said pulsed laser light source 2 constitutes with fiber laser, laser pumping source 1 is a laser diode, the window that pulsed laser light source 2 emitted laser incide on the surfaces A of medium operating room 4 enters medium operating room 4, and working media is through being expanded the tunable laser beam I of bundle
2After the irradiation, light pulse I is opened in corresponding energy level splitting
PulseChromatic dispersion takes place when entering working media after treatment, the time Δ T=(L/c-L/Vg) of pulse stretching, wherein L is a working media length, Vg is the group velocity of light pulse.Pulse signal behind the broadening enters on the receiving system 5.
This laser pumping source 1 is laser diode or laser.
This LASER Light Source 2 is optical fiber solid state laser or semiconductor laser or solid-state laser or gas laser or chemical laser.
This laser pumping source 12 is laser diode or laser.
This LASER Light Source 11 is optical fiber solid state laser or semiconductor laser or solid-state laser or gas laser or chemical laser.
This polarimeter 10 is level crossing or half-wave plate or Ni Keer prisms of a plating polarizing coating.
This beam expander 9 is Galilean telescope or amplifying lens group.
This vacuum pump 8 is mechanical pump or molecular pump or diffusion pump.
This receiving system 5 is CCD diode array detector or photodiode, or the operative installations in photomultiplier or multichannel plate or oscilloscope or computer or the optical engineering.
The course of work of Stark chirped pulse time explanation device of the present invention is:
Launch tunable laser when tunable laser 11 and enter in the beam expander 9 after partially through 10 of polarimeters and expand bundle, expand the tunable laser light beam I behind the bundle
2Window on medium operating room 4 surface C excites the working media in the medium operating room 4, makes the corresponding energy level splitting in the working media, the light pulse I of pulse laser 2 emissions
PulseWindow through working media chamber 4 surfaces A enters medium operating room 4, light pulse I
PulseProduce chromatic dispersion in the working media that energy level has divided, light pulse is broadened on the transmission time.The light pulse of outgoing is transported on the receiving system 5.
In use, pulsed laser light source 2 usefulness solid state lasers are made light source, and Shu Chu wavelength is at 800nm simultaneously, power output 0.1W, pulsewidth 1 μ s.The tunable wave band of LASER Light Source 11 usefulness is at 500nm to 900nm wave-length coverage inner laser device, and working media length L=2cm, working media are barium (Ba
+) ion, ion concentration is 6 * 10
11Cm
-3, pulse is broadened to be 2.7 μ s.
Claims (7)
1, a kind of Stark chirped pulse time explanation device, it is characterized in that: this stretcher is divided into two the tunnel according to the direction of propagation of light, one the tunnel is laser pumping source (1), LASER Light Source (2), medium operating room (4), receiving system (5), another road is laser pumping source (12), LASER Light Source (11), polarimeter (10), beam expander (9), medium operating room (4), vacuum pump (8) is connected in the medium operating room (4) by vacuum-pumping tube (7), and medium operating room (4) are furnished with air admission hole (3) and the venthole (6) that enters working media; LASER Light Source (11) is launched tunable laser and is entered in the beam expander (9) after polarimeter (10) rises partially and expand bundle, expands the tunable laser light beam I behind the bundle
2Enter medium operating room (4) and working media is excited, make the corresponding energy level splitting in the working media, the light pulse I of LASER Light Source (2) emission
PulseEnter working media chamber (4), light pulse I
PulseProduce chromatic dispersion in the working media that energy level has divided, light pulse is broadened on the transmission time, and the light pulse of outgoing is transported on the receiving system (5).
2, Stark chirped pulse time explanation device according to claim 1, it is characterized in that: laser pumping source (1), (12) are laser diode or laser.
3, Stark chirped pulse time explanation device according to claim 1 is characterized in that: LASER Light Source (2), (11) are optical fiber solid state laser or semiconductor laser or solid-state laser or gas laser or chemical laser.
4, Stark chirped pulse time explanation device according to claim 1 is characterized in that: this polarimeter (10) is level crossing or the half-wave plate or the Ni Keer prism of a plating polarizing coating.
5, Stark chirped pulse time explanation device according to claim 1, it is characterized in that: this beam expander (9) is Galilean telescope or amplifying lens group.
6, Stark chirped pulse time explanation device according to claim 1, it is characterized in that: this vacuum pump (8) is mechanical pump or molecular pump or diffusion pump.
7, Stark chirped pulse time explanation device according to claim 1, it is characterized in that: this receiving system (5) is CCD diode array detector or photodiode, or the operative installations in photomultiplier or multichannel plate or oscilloscope or computer or the optical engineering.Put.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116897 CN1244191C (en) | 2003-05-14 | 2003-05-14 | Stark chirp pulse time stretcher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116897 CN1244191C (en) | 2003-05-14 | 2003-05-14 | Stark chirp pulse time stretcher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1450693A true CN1450693A (en) | 2003-10-22 |
| CN1244191C CN1244191C (en) | 2006-03-01 |
Family
ID=28684288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03116897 Expired - Fee Related CN1244191C (en) | 2003-05-14 | 2003-05-14 | Stark chirp pulse time stretcher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1244191C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295824C (en) * | 2004-10-29 | 2007-01-17 | 华中科技大学 | Approximate outer fluid generator for pulsed laser Q modulation |
| CN103631063A (en) * | 2013-03-08 | 2014-03-12 | 北方工业大学 | High-precision ultrashort light pulse sampler based on time walk technology |
| CN105785502A (en) * | 2016-04-22 | 2016-07-20 | 哈尔滨理工大学 | Device for generating chirped Brillouin dynamic grating |
-
2003
- 2003-05-14 CN CN 03116897 patent/CN1244191C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295824C (en) * | 2004-10-29 | 2007-01-17 | 华中科技大学 | Approximate outer fluid generator for pulsed laser Q modulation |
| CN103631063A (en) * | 2013-03-08 | 2014-03-12 | 北方工业大学 | High-precision ultrashort light pulse sampler based on time walk technology |
| CN103631063B (en) * | 2013-03-08 | 2016-04-13 | 北方工业大学 | Based on the high precision ultrashort light pulse sampler of time-scale extension technology |
| CN105785502A (en) * | 2016-04-22 | 2016-07-20 | 哈尔滨理工大学 | Device for generating chirped Brillouin dynamic grating |
| CN105785502B (en) * | 2016-04-22 | 2018-11-06 | 哈尔滨理工大学 | A kind of device generating chirp Brillouin's dynamic raster |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1244191C (en) | 2006-03-01 |
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Granted publication date: 20060301 |