CN1309445A - Triangular ring cavity frequency multiplier - Google Patents
Triangular ring cavity frequency multiplier Download PDFInfo
- Publication number
- CN1309445A CN1309445A CN 00127958 CN00127958A CN1309445A CN 1309445 A CN1309445 A CN 1309445A CN 00127958 CN00127958 CN 00127958 CN 00127958 A CN00127958 A CN 00127958A CN 1309445 A CN1309445 A CN 1309445A
- Authority
- CN
- China
- Prior art keywords
- frequency
- doubling crystal
- light
- prism
- fundamental frequency
- 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
- 239000013078 crystal Substances 0.000 claims abstract description 40
- 239000000919 ceramic Substances 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 3
- QBLDFAIABQKINO-UHFFFAOYSA-N barium borate Chemical compound [Ba+2].[O-]B=O.[O-]B=O QBLDFAIABQKINO-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000019796 monopotassium phosphate Nutrition 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- FOXXZZGDIAQPQI-XKNYDFJKSA-N Asp-Pro-Ser-Ser Chemical compound OC(=O)C[C@H](N)C(=O)N1CCC[C@H]1C(=O)N[C@@H](CO)C(=O)N[C@@H](CO)C(O)=O FOXXZZGDIAQPQI-XKNYDFJKSA-N 0.000 description 1
- NNAZVIPNYDXXPF-UHFFFAOYSA-N [Li+].[Cs+].OB([O-])[O-] Chemical compound [Li+].[Cs+].OB([O-])[O-] NNAZVIPNYDXXPF-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 1
- 230000009022 nonlinear effect Effects 0.000 description 1
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Landscapes
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
A frequency multiplier with triangular ring cavity is composed of an input reflector and an output reflector, which are arranged at both ends of frequency doubling crystal and have splayed reflecting surfaces. An isosceles triangular prism is arranged at the intersection point of the light beams reflected by the two reflectors, the bottom edge of the isosceles triangular prism faces to the frequency doubling crystal, and the vertex angle of the isosceles triangular prism is arranged on the piezoelectric ceramic with the controller. The fundamental frequency light penetrates through the input reflector and is emitted through the frequency doubling crystal through the output reflector, the unconverted fundamental frequency light is totally reflected to the prism through the output reflector, and the prism refracts the fundamental frequency light to the input reflector and then reflects the fundamental frequency light to the frequency doubling crystal. Thereby forming a triangular ring cavity. The structure is simple, and the loss of the fundamental frequency light is reduced.
Description
The present invention is a kind of frequency multiplier with triangular ring cavity, be applicable to various continuously or the frequency multiplication of quasi-continuous lasing, be specially adapted to continuous semiconductor laser pumping Solid State Laser (DPSS) frequency multiplication and produce Ultra-Violet Laser.
The generation of Ultra-Violet Laser, a kind of structure are by the Excimer UV laser, and another kind is the non-linear frequency conversion by crystal.And the frequency inverted of continuous laser only adopts the conversion efficiency of monocrystal lower, the suitable annular chamber frequency multiplier that adopts.Four mirror folded coil chambeies are formerly arranged (referring to technology [1] S.Bourezeix formerly in the technology, B.Beauvior, Ultra-violet light generation at 205nm by two frequency doubling steps ofa cw titanium-sapphire laser, Optics Communication, 133 (1997) 239-244, ELSEVIER) and four mirror rectangular loop chambeies (referring to technology [2] Hidemi TSUCHA formerly, Frequency doubling oftunable Ti:Sapphire laser with KNbO
3In external cavity, Jpn.J.Appl.Phys.Vol33 (1994) 6190-6194).But four used mirror annular chambers are regulated difficulty, regulate the several times speculum simultaneously, and operating both bothered, time-consuming again, and big to the loss of fundamental frequency light.
Purpose of the present invention: regulate difficulty and the shortcoming big in order to overcome formerly in the technology four mirror annular chambers, a kind of frequency multiplier of triangular ring cavity is provided to the fundamental frequency optical loss.It will make the fundamental frequency optical loss little, simple in structure, easy to adjust.
Frequency multiplier with triangular ring cavity of the present invention comprises: frequency-doubling crystal 3, be equipped with the center on frequency-doubling crystal 3 central axis at an end of frequency-doubling crystal 3, and be coated with fundamental frequency light G to LASER Light Source 1 emission
JTransmitance is 50%, to frequency doubled light G
BThe input reflection mirror 2 of total reflection medium film.The other end at frequency-doubling crystal 3 is equipped with the center on frequency-doubling crystal 3 central axis, is coated with fundamental frequency light G
JTotal reflection is to frequency doubled light G
BFull impregnated is crossed the output reflector 4 of deielectric-coating.Place the input reflection mirror 2 at frequency-doubling crystal 3 two ends and two reflectings surface of output reflector 4 to be herringbone or splayed with respect to frequency-doubling crystal 3.Be equipped with the prism 5 of isosceles triangle at the intersection point place of two reflecting surface folded light beams of input reflection mirror 2 and output reflector 4.The base of prism 5 is facing to frequency-doubling crystal 3.The drift angle of prism 5 places on the piezoelectric ceramic 6 of tape controller 7.As shown in Figure 1:
As above-mentioned structure, as the fundamental frequency light G of LASER Light Source 1 emission
JAfter seeing through input reflection mirror 2 and injecting frequency-doubling crystal 3, because the frequency multiplication effect of frequency-doubling crystal 3 produces frequency doubled light G
B, frequency doubled light G
BSee through output reflector 4 backs and penetrate, and the fundamental frequency light G that is not transformed by frequency-doubling crystal 3
JBe totally reflected on the prism 5 by output reflector 4, be refracted on the input reflection mirror 2, reflex on the frequency-doubling crystal 3 by input reflection mirror 2 again, through the frequency multiplication of frequency-doubling crystal 3, the frequency doubled light G of generation by prism 5
BPenetrate the fundamental frequency light G that is not transformed by output reflector 4 again
jBe reflected to again and go back on the prism 5 on the input reflection mirror 2,, can obtain high efficiency frequency doubled light G so repeatedly in intracavity frequency doubling
BBe fixed on the piezoelectric ceramic 6 of tape controller 7 by the drift angle of epoxy resin, can adjust prism 5 by controller 7, thereby make frequency multiplier be operated in optimum state prism 5.
Frequency-doubling crystal 3 in the frequency multiplier of the present invention is non-linear frequency-doubling crystals, so frequency doubled light G
BGeneration be exactly the quadratic nonlinearity effect of utilizing in the non-linear frequency-doubling crystal, as fundamental frequency light G
JWhen enough strong, the polarization of crystal is just relevant with light intensity, and is not only linear.The nonlinear effect of a lot of crystal is very strong, can utilize these crystal to produce frequency doubled light.So frequency-doubling crystal 3 can be nonlinear crystal barium metaborate (BBO), or cesium lithium borate (CLBO), or potassium dihydrogen phosphate (KDP) etc.
For the frequency multiplication of continuous light, the generation coefficient of frequency multiplication can be expressed as:
L is the length of crystal, ω and K
ωBe the angular frequency and the wave vector of fundamental frequency light, n is the crystal refractive index of phase matched direction, and (B E) is Bo Yi-Gidon Kremer (Boyd-Kleinman) function to h.The annular chamber frequency multiplication of continuous light can make full use of fundamental frequency light and frequency-doubling crystal, and very short frequency-doubling crystal places frequency multiplier can make repeatedly fundamental frequency light process, has enlarged the frequency multiplication zone of action.And prism 5 usefulness are done the refraction to fundamental frequency light, replace formerly changing the fundamental frequency light direction with two speculums in the technology [2], make frequency multiplier of the present invention simple in structure like this, and light path has shortened, and is little to the loss of fundamental frequency light, and easy to adjust.
Advantage of the present invention: as mentioned above, frequency multiplier with triangular ring cavity of the present invention has simple in structure, is easy to control, the light path compactness, the efficient height is to advantage such as the loss of fundamental frequency light is little, and can the more frequency doubled light of high-order will be obtained by a plurality of triangular ring cavities of cascade.
Description of drawings:
Fig. 1 is the structural representation of frequency multiplier with triangular ring cavity of the present invention
Embodiment:
Frequency multiplier with triangular ring cavity as shown in Figure 1, fundamental frequency light G
JBe that Wavelength of Laser is 1064nm as the continuous laser of semiconductor pumped yttrium-aluminium-garnet (YAG) the laser generation of LASER Light Source 1, laser power is 500mW, is output as TEM
00Mould, input reflection mirror 2 is to be coated with fundamental frequency 1064nm light 30 degree 50% are seen through, glass lens to the deielectric-coating of 532nm frequency doubled light total reflection, frequency-doubling crystal 3 is φ=0 ° of 5 * 5 * 7mm, the bbo crystal of θ=49 °, output reflector 4 be coated with to the total reflections of fundamental frequency 1064nm light 30 degree to 532nm frequency doubled light full impregnated cross deielectric-coating glass lens, prism 5 is 60 degree equilateral triangle K9 glass prisms, the parameter of the frequency multiplication 532nm laser of output is:
Wavelength: 532nm
Power: 25mW
Bundle waveform:＞95% Gaussian
Mode structure: single transverse mode, TEM
00Exported frequency doubled light G by present embodiment
BParameter can prove the advantage of the invention described above.
Claims (1)
1. frequency multiplier with triangular ring cavity comprises:
＜1〉frequency-doubling crystal (3) is arranged, be equipped with the center on frequency-doubling crystal (3) central axis, be coated with fundamental frequency light (G LASER Light Source (1) emission at an end of frequency-doubling crystal
J) transmitance is 50%, to frequency doubled light (G
B) the input reflection mirror (2) of total reflection medium film, be equipped with the center on frequency-doubling crystal (3) central axis at the other end of frequency-doubling crystal (3), be coated with fundamental frequency light (G
J) total reflection, to frequency doubled light (G
B) full impregnated crosses the output reflector (4) of deielectric-coating;
It is characterized in that:
＜2〉place the input reflection mirror (2) at frequency-doubling crystal (3) two ends and two reflectings surface of output reflector (4) to be herringbone or splayed with respect to frequency-doubling crystal (3);
＜3〉be equipped with the prism (5) of isosceles triangle at the intersection point place of two reflecting surface folded light beams of input reflection mirror (2) and output reflector (4);
＜4〉base of prism (5) is facing to frequency-doubling crystal (3), and the drift angle of prism (5) places on the piezoelectric ceramic (6) of tape controller (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00127958 CN1309445A (en) | 2000-12-20 | 2000-12-20 | Triangular ring cavity frequency multiplier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00127958 CN1309445A (en) | 2000-12-20 | 2000-12-20 | Triangular ring cavity frequency multiplier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1309445A true CN1309445A (en) | 2001-08-22 |
Family
ID=4592868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00127958 Pending CN1309445A (en) | 2000-12-20 | 2000-12-20 | Triangular ring cavity frequency multiplier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1309445A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944049A (en) * | 2014-03-26 | 2014-07-23 | 中国工程物理研究院应用电子学研究所 | Miniature three-endoscope ring cavity mid-infrared optical parametric oscillator |
-
2000
- 2000-12-20 CN CN 00127958 patent/CN1309445A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944049A (en) * | 2014-03-26 | 2014-07-23 | 中国工程物理研究院应用电子学研究所 | Miniature three-endoscope ring cavity mid-infrared optical parametric oscillator |
| CN103944049B (en) * | 2014-03-26 | 2017-03-15 | 中国工程物理研究院应用电子学研究所 | A kind of three hysteroscope annular chamber mid-infrared parameter oscillator of miniaturization |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5446749A (en) | Diode pumped, multi axial mode, intracavity doubled laser | |
| US7443903B2 (en) | Laser apparatus having multiple synchronous amplifiers tied to one master oscillator | |
| US5321718A (en) | Frequency converted laser diode and lens system therefor | |
| US5256164A (en) | Method of fabricating a microchip laser | |
| US6999483B1 (en) | External 3rd, 4th and 5th harmonic laser | |
| EP0788015A2 (en) | Multi quasi phase matched interactions in a non-linear crystal | |
| JPH04503429A (en) | microchip laser | |
| EP1493213B1 (en) | Intracavity resonantly enhanced fourth-harmonic generation using uncoated brewster surfaces | |
| JP2000261081A (en) | Laser | |
| WO2004025363A1 (en) | Wavelength conversion module | |
| JPH02135787A (en) | Optically-pumped solid state laser | |
| EP1669799A1 (en) | Wavelength conversion laser and image display | |
| EP0951111A2 (en) | Polarisation based mode-locking of a laser | |
| CN102157892A (en) | High-power ultraviolet laser | |
| US7330300B1 (en) | Optical frequency mixer and method for the same | |
| KR100863199B1 (en) | Laser Apparatus and Method for Harmonic Beam Generation | |
| CN2463992Y (en) | Triangular ring cavity frequency multiplier | |
| JP2000216465A (en) | Laser resonator | |
| JPH05121803A (en) | Semiconductor excitation solid-state laser | |
| CN1309445A (en) | Triangular ring cavity frequency multiplier | |
| JPH0922037A (en) | Laser beam generator | |
| CN109742646B (en) | A kind of device inhibiting the optical parametric oscillator relaxation oscillation of intracavity pump continuous wave | |
| JPH06265955A (en) | Wavelength converting element | |
| JPH02214180A (en) | Coherent light source | |
| JP2006049506A (en) | Semiconductor laser excitation solid state laser apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1068297 Country of ref document: HK |