CN2593219Y - Efficient high-power pulse laser polarizing apparatus - Google Patents
Efficient high-power pulse laser polarizing apparatus Download PDFInfo
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- CN2593219Y CN2593219Y CN 03228089 CN03228089U CN2593219Y CN 2593219 Y CN2593219 Y CN 2593219Y CN 03228089 CN03228089 CN 03228089 CN 03228089 U CN03228089 U CN 03228089U CN 2593219 Y CN2593219 Y CN 2593219Y
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Abstract
The utility model relates to a high-efficient and high-power pulse laser polarizing apparatus. The utility model is characterized in that the polarizing apparatus comprises a laser pumping source, a laser light source, a pulse generator, a polarizing element, an impulse selecting element, a steering element, a deflecting element, a converging lens and a receiving device; the components have the positional relationship that under the pumping of the laser pumping source, laser light emitted by the laser source is incident on a pulse generator, and continuous laser light is modulated into pulsed light to be incident on the incident face a of the polarizing element; the exit laser light from the exit face b1 of the polarizing element is parallel polarized light Ip, and the exit laser light from the exit face b2 of the polarizing element is vertical polarized light Iv; after the pulsed light with a proper phase position is selected out by the impulse selecting element from the vertical polarized light Iv, the pulsed light is incident to the steering element, and then the pulsed light is converted into parallel polarized light Ip'; the two beams of polarized light Ip and Ip' are incident on the converging lens, and are received by the receiving device. The utility model has the advantages of high polarizing efficiency, simple structure, convenient operation, etc.
Description
Technical field:
The utility model relates to laser polarization, and particularly a kind of high-efficiency high power pulse laser polarising means is mainly used in and improves the efficient that the pulse nonpolarized light converts polarized light to.
Background technology:
Look in the U.S. in the prior art Du's .A. Wheelarra now (Ricardo A.Villalaz) people of etc.ing in the effect of polarization and loss " body grating be coupled " (Volume grating couplers:polarization and loss effects) literary composition, discussed theory about polarized light, but do not provide a kind of utility unit that improves the pulse polarization efficiency.
The utility model content:
The purpose of this utility model provides a kind of high-efficiency high power pulse laser polarising means, and this device can convert the pulse nonpolarized light to the polarized light of same polarization direction efficiently, and simple in structure, easily operation.
Technical solution of the present utility model is as follows:
A kind of high-efficiency high power optical fiber pulse laser polarising means, it is characterized in that this device comprises laser pumping source, LASER Light Source, pulse producer, polarizing component, select impulse element, steering component, change inclined to one side element, plus lens and receiving trap, its position relation is: under the pumping of laser pumping source, the LASER Light Source emitted laser incides on the pulse producer, continuous laser is modulated into pulsed light and incides on the plane of incidence a of polarizing component, by polarizing component exit facet b1 emitting laser is parallel polarized light Ip, by polarizing component exit facet b2 outgoing is orthogonal polarized light Iv, this orthogonal polarized light Iv selects phase place after selecting impulse element suitable pulsed light reenters converts parallel polarized light Ip ' to by changeing inclined to one side element after being mapped to steering component, two bundle parallel polarized light Ip and Ip ' incide on the plus lens, are received by receiver.
Laser pumping source is that laser diode constitutes, described LASER Light Source is a single mode fiber laser, described pulse producer is made of the electro-optical pulse generator, the described impulse element that selects is made of the photoelectricity frequency selector, described focal element is that concave mirror constitutes, described polarizing component is made of the Ni Keer prism, and the inclined to one side element of described commentaries on classics is made of half-wave plate.
Described LASER Light Source can also be semiconductor laser or other solid state lasers.
Described receiving trap can be CCD diode array detector or photodiode or photomultiplier or hyperchannel plate or oscillograph or computing machine or other operative installations.
Technique effect of the present utility model is:
1. use the utility model polarising means can improve polarized light efficient 40%;
2. polarizing component and the inclined to one side element of commentaries on classics realize that easily the kind that is suitable for is more;
3. the kind that can be used for LASER Light Source and engineering optics polarization is many;
4. whole device all solidifies, and is simple in structure, easily operation.
Description of drawings:
Fig. 1 is the utility model polarising means light channel structure synoptic diagram.
Embodiment:
The light path of the utility model high-efficiency high power pulse laser polarising means and structure thereof are as shown in Figure 1, the utility model device comprises: most crucial element is a pulse generating unit 3, polarizing component 4, select impulse element 5 and change inclined to one side element 7, place the plane of incidence a of polarizing component 4 to converge optical element 8 before, after placing polarizing component 4 outgoing plane b2 the steering component 6 that selects impulse element 5 and change optical propagation direction is arranged, changeing inclined to one side element 7 places on the light path that turns to after the optical element 6, converge optical element 8 after the inclined to one side element 7 of polarizing component 4 and commentaries on classics, converge optical element 8 and receive on the receiver 9.
Said LASER Light Source 2 constitutes with single mode fiber laser, laser pumping source 1 constitutes with laser diode, LASER Light Source 2 emitted laser incide on the pulse producer 3, the light pulse that pulse generation produces is incided on the plane of incidence a of polarizing component 4, by polarizing component 4 exit facet b1 emitting lasers are parallel polarized light Ip, by polarizing component 4 exit facet b2 outgoing are orthogonal polarized light Iv, convert parallel polarized light Ip ' to by changeing inclined to one side element 7 after orthogonal polarized light Iv selects phase place after selecting impulse element 5 suitable pulsed light the incides spherical reflector 6, two bundle parallel polarized light Ip and Ip ' incide on the plus lens 8, are received by receiving trap 9.
Said polarizing component 4 is made of the Ni Keer prism, changes inclined to one side element 7 and is made of half-wave plate.
The laser instrument of said formation LASER Light Source 2 is optical fiber solid state laser or semiconductor laser, solid-state laser.
Said pulse generating unit 3 is made of the electro-optical pulse generator.
The said pulser 5 that selects is made of the photoelectricity frequency selector.
Said focal element 6 is that concave mirror constitutes.
Said formation laser pumping source 1 is laser diode or other band laser.
Said receiving trap 9 is CCD diode array detectors, or photodiode, or photomultiplier, or the hyperchannel plate, or oscillograph, or computing machine, or operative installations.
The course of work of efficient polarization of the present utility model is: when LASER Light Source incides on the pulse producer 3, continuous light is modulated into pulsed light, pulsed light incides on the pulse shaper 4, be made into chirped pulse, chirped pulse incides on the polarizing component 5, and Ip parallel polarized light and Iv orthogonal polarized light are respectively by polarizing component 4 exit facet b1 outgoing OO
1Parallel polarized light and exit facet b2 outgoing OO
2Orthogonal polarized light.Orthogonal polarized light Iv selects the suitable pulse of phase place through selecting impulse element 5, and the pulsed light that is selected incides on the reflected light components 6, changes OO
2The direction of propagation to O
2O
3, by changeing inclined to one side element 8 with O
2O
3Orthogonal polarized light Iv changes 90 ° and becomes parallel polarized light Ip ', and two bundle parallel polarized light Ip and Ip ' are transported on the beam shaping 9 by plus lens 8.
The structure and the working order of specific embodiment of the utility model are as follows:
Device as shown in Figure 1, LASER Light Source 2 are optical fiber solid state lasers, the output wavelength 1080nm of light source, output power 100W.Polarizing component 4 is Ni Keer prisms, and parallel polarized light Ip is from the b1 exit facet outgoing of polarizing component 4, and emergent power is 49W.Orthogonal polarized light Iv is from the b2 exit facet outgoing of polarizing component 4, power 49W, orthogonal polarized light OO
2Incide on the inclined to one side element 7 of commentaries on classics incide optical element 6 reflections after selecting impulse element 5 after, the polarization direction of orthogonal polarized light through changeing 90 ° of angles of inclined to one side element 7 commentaries on classics becomes parallel polarized light Ip ', and power is 48.9W.Parallel polarized light Ip and parallel polarized light Ip ' incide on the focal element 8, are received device 9 and receive, and improve polarization efficiency more than 40% than general inclined to one side system.
Claims (4)
1, a kind of high-efficiency high power pulse laser polarising means, it is characterized in that this device comprises laser pumping source (1), LASER Light Source (2), pulse producer (3), polarizing component (4), select impulse element (5), steering component (6), change inclined to one side element (7), plus lens (8) and receiving trap (9), its position relation is: under the pumping of laser pumping source (1), LASER Light Source (2) emitted laser incides on the pulse producer (3), continuous laser is modulated into pulsed light and incides on the plane of incidence a of polarizing component (4), by polarizing component (4) exit facet b1 emitting laser is parallel polarized light Ip, by polarizing component (4) exit facet b2 outgoing is orthogonal polarized light Iv, this orthogonal polarized light Iv selects phase place after selecting impulse element (5) suitable pulsed light reenters is mapped to steering component (6) and converts parallel polarized light Ip ' to by changeing inclined to one side element (2) afterwards, two bundle parallel polarized light Ip and Ip ' incide on the plus lens (8), are received by receiver (9).
2, high-efficiency high power pulse laser polarising means according to claim 1, it is characterized in that said laser pumping source (1) is that laser diode constitutes, described LASER Light Source (2) is a single mode fiber laser, described pulse producer (3) is made of the electro-optical pulse generator, the described impulse element (5) that selects is made of the photoelectricity frequency selector, described focal element (6) is that concave mirror constitutes, described polarizing component (4) is made of the Ni Keer prism, and the inclined to one side element of described commentaries on classics (7) is made of half-wave plate.
3, high-efficiency high power pulse laser polarising means according to claim 1 is characterized in that described LASER Light Source (2) can also be semiconductor laser or other solid state lasers.
4,, it is characterized in that described receiving trap (9) can be CCD diode array detector or photodiode or photomultiplier or hyperchannel plate or oscillograph or computing machine or other operative installations according to claim 1 or 2 or 3 described high-efficiency high power pulse laser polarising means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03228089 CN2593219Y (en) | 2003-01-10 | 2003-01-10 | Efficient high-power pulse laser polarizing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03228089 CN2593219Y (en) | 2003-01-10 | 2003-01-10 | Efficient high-power pulse laser polarizing apparatus |
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|---|---|
| CN2593219Y true CN2593219Y (en) | 2003-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 03228089 Expired - Fee Related CN2593219Y (en) | 2003-01-10 | 2003-01-10 | Efficient high-power pulse laser polarizing apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748444A (en) * | 2017-12-01 | 2018-03-02 | 中国科学院长春光学精密机械与物理研究所 | A kind of polarised light wide visual field transmission-type convergence lighting device and method |
| CN109709685A (en) * | 2019-03-14 | 2019-05-03 | 曲阜师范大学 | A kind of non-polarized Raman laser turns the device of linearly polarized laser |
| CN115128821A (en) * | 2022-08-30 | 2022-09-30 | 中国科学院长春光学精密机械与物理研究所 | Spectrum beam combining device and method based on polarization separation external cavity feedback |
-
2003
- 2003-01-10 CN CN 03228089 patent/CN2593219Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748444A (en) * | 2017-12-01 | 2018-03-02 | 中国科学院长春光学精密机械与物理研究所 | A kind of polarised light wide visual field transmission-type convergence lighting device and method |
| CN109709685A (en) * | 2019-03-14 | 2019-05-03 | 曲阜师范大学 | A kind of non-polarized Raman laser turns the device of linearly polarized laser |
| CN115128821A (en) * | 2022-08-30 | 2022-09-30 | 中国科学院长春光学精密机械与物理研究所 | Spectrum beam combining device and method based on polarization separation external cavity feedback |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031217 |