CN201000999Y - Laser output dual-cladding large mode field photonic crystal fiber laser - Google Patents
Laser output dual-cladding large mode field photonic crystal fiber laser Download PDFInfo
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- CN201000999Y CN201000999Y CNU2006200793714U CN200620079371U CN201000999Y CN 201000999 Y CN201000999 Y CN 201000999Y CN U2006200793714 U CNU2006200793714 U CN U2006200793714U CN 200620079371 U CN200620079371 U CN 200620079371U CN 201000999 Y CN201000999 Y CN 201000999Y
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- laser
- mirror
- dichroic mirror
- mode field
- large mode
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Abstract
The utility model relates to a laser output doped Yb<3+> double-clad large-mode-area photonic crystal fiber laser, which consists of a fiber optic coupler and a laser resonance laser resonator which are arranged on the identical optical axle, wherein the fiber optic coupler consists of a semiconductor laser, a first collimating aspheric mirror, a focusing aspheric mirror, and a second collimating aspheric mirror which are arranged on the identical optical axle; the laser resonator consists of a first dichroic mirror and a second dichroic mirror, wherein the first dichroic mirror is arranged between the first collimating aspheric mirror and the focusing aspheric mirror, the second dichroic mirror is arranged at the exit end of the second collimating aspheric mirror. In order to solve the technical problem existing in the background technology, the utility model provides a laser output doped Yb<3+> double-clad large-mode-area photonic crystal fiber laser, which has the advantages of compact structure, stable performance, high light beam quality, and highlight brightness.
Description
Technical field
The utility model relates to a kind of laser output and mixes Yb
3+Double cladding large mode field photon crystal optical laser device.
Background technology
Fiber laser as third generation laser has the not available huge advantage of conventional laser.Especially high efficiency is mixed Yb
3+Fiber laser organically combines diode-end-pumped technology and doubly clad optical fiber doping manufacturing technology, absorb both advantages, with high power, low-light level, cheap multimode LD light by pumping doubly clad optical fiber structure, realize the single-mode laser output of high brightness, diffraction limited, improve coupling and conversion efficiency greatly, increased the output laser power.It with perfect heat-dissipating, conversion efficiency height, laser threshold is low, tunable range is wide, good beam quality, significant advantage such as non-maintaining, has been subjected to extensive concern both domestic and external.
At traditional high power Yb
3+In the fiber laser, adopt traditional enamel amber chamber (F-P chamber) structure and with the space coupled system of its coupling, its structure is loaded down with trivial details, regulates difficulty.Simultaneously in traditional F-P cavity configuration, one of them dichroic mirror will be close to fiber end face, and laser will focus on this surface that closely contacts with pumping light, very easily damages fiber end face and optical thin film like this under the high power situation.The big mould area double-cladding of tradition is mixed Yb simultaneously
3+Optical fiber is because factors such as himself optical fiber designs have brought limitation for the single-mode laser output of big mould field.
The utility model content
The utility model is for solving the above-mentioned technical problem that exists in the background technology, and the Yb that mixes of a kind of compact conformation, stable performance, high light beam quality, high brightness laser output is provided
3+Double cladding large mode field photon crystal optical laser device.
Technical solution of the present utility model is: the utility model is that Yb is mixed in a kind of laser output
3+Double cladding large mode field photon crystal optical laser device, its special character is: this device comprises fiber coupler and the laserresonator that is arranged on the same optical axis, fiber coupler comprises semiconductor laser, the first collimation aspherical mirror, focusing aspherical mirror and the second collimation aspherical mirror that is successively set on the same optical axis, laserresonator comprises first dichroic mirror and second dichroic mirror, first dichroic mirror is arranged on the first collimation aspherical mirror and focuses between the aspherical mirror, and second dichroic mirror is arranged on the exit end of the second collimation aspherical mirror.
Be provided with photonic crystal fiber between above-mentioned first dichroic mirror and second dichroic mirror.
Above-mentioned photonic crystal fiber is for mixing Yb
3+Double cladding large mode field photon crystal optical fiber.
The exit end of above-mentioned second dichroic mirror is provided with the beam quality analyzer.
The exit end of above-mentioned second dichroic mirror is provided with power meter.
The utility model adopts the Yb that mixes with peculiar property
3+Double cladding large mode field photon crystal optical fiber (LMA-PCF) and improved compact F-P cavity configuration, dichroic mirror is placed between two aspherical mirrors, avoid being close to optic fibre input end, make structure compact more, easy to adjust simple and direct, avoided high power pump light to focus on the dichroic mirror rete, and under equal heavy pumping power working order, successful reduction the power density that laser film bore, simultaneously, adopt aspherical mirror that laser is collimated at laser output, place this aspherical mirror with another dichroic mirror as the laser output coupling mirror after, therefore, the utility model has realized mixing Yb
3+Double clad LMA-PCF laser 103W single-mode laser is exported continuously, and whole system does not have tangible hot optical issue, and dichroic mirror surface damage and slope efficiency descend.
Four, description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the power characteristic figure of the stable output of the utility model;
Fig. 3 is the utility model spectrum output characteristic curve figure;
Fig. 4 is the utility model distribution of light intensity distribution map.
Five, embodiment
Referring to Fig. 1, the utility model comprises fiber coupler and the laserresonator that is arranged on the same optical axis, fiber coupler comprises the semiconductor laser 1 that is successively set on the same optical axis, the first collimation aspherical mirror 2, focus on the aspherical mirror 4 and the second collimation aspherical mirror 6, laserresonator comprises first dichroic mirror 3 and second dichroic mirror 7, first dichroic mirror 3 is arranged on the first collimation aspherical mirror 2 and focuses between the aspherical mirror 4, second dichroic mirror 7 is arranged on the exit end of the second collimation aspherical mirror 6, wherein the first collimation aspherical mirror 2 and 4 of focusing aspherical mirrors collimate focussing force, the second collimation aspherical mirror 6 plays the laser alignment effect, second dichroic mirror 7 is as the laser output coupling mirror, be provided with photonic crystal fiber 5 between first dichroic mirror 3 and second dichroic mirror 7, this photonic crystal fiber is to mix Yb
3+Double cladding large mode field photon crystal optical fiber is good, and the exit end of second dichroic mirror 7 also can be respectively arranged with beam quality analyzer 8 and power meter 9.
The utility model collimates aspherical mirror 2 with the pumping light of semiconductor laser 1 tail optical fiber output through first, the laser beam behind first dichroic mirror 3 and the focusing aspherical mirror 4 and the inner cladding parameter matching of photonic crystal fiber 5, thereby inject the inner cladding of photonic crystal fiber 5, after passing through the laserresonator starting of oscillation then, from 7 outputs of second dichroic mirror, use beam quality analyzer 8 and power meter 9 respectively output laser beam quality and power to be monitored.
Fig. 2,3,4 design sketchs for the utility model enforcement, when wherein Fig. 2 is 0.9W for launched power, observe the power characteristic that 1.04 μ m laser produce on the spectrometer, Fig. 3 has obtained the high power laser light output of 103W during for 210W for pump power, slope efficiency is about 83.2%, and light conversion efficiency is 49% o'clock a spectrum output characteristic.Fig. 4 is for the LMA-PCF bending radius is the distribution of light intensity distribution map of laser stabilization output under the 20cm, and adopting beam quality analyzer 8 to record the hot spot beam quality is M
2=1.2 ± 0.1, reach nearly diffraction limit.After having observed the hot spot field strength distribution under several groups of high power output situations, find its intensity distribution variation and not obvious.By above analysis, the utility model has guaranteed the optical quality of laser output in the laser output of obtaining hectowatt grade, thereby has realized the stable output of high brightness laser.
Claims (5)
1, a kind of laser output double cladding large mode field photon crystal optical laser device, it is characterized in that: this device comprises fiber coupler and the laser resonance laserresonator that is arranged on the same optical axis, described fiber coupler comprises the semiconductor laser that is successively set on the same optical axis, the first collimation aspherical mirror, focus on the aspherical mirror and the second collimation aspherical mirror, described laserresonator comprises first dichroic mirror and second dichroic mirror, described first dichroic mirror is arranged on the first collimation aspherical mirror and focuses between the aspherical mirror, and described second dichroic mirror is arranged on the exit end of the second collimation aspherical mirror.
2, laser output double cladding large mode field photon crystal optical laser device according to claim 1 is characterized in that: be provided with photonic crystal fiber between described first dichroic mirror and second dichroic mirror.
3, laser output double cladding large mode field photon crystal optical laser device according to claim 2, it is characterized in that: described photonic crystal fiber is a double cladding large mode field photon crystal optical fiber.
4, according to claim 1 or 2 or 3 described laser output double cladding large mode field photon crystal optical laser devices, it is characterized in that: the exit end of described second dichroic mirror is provided with the beam quality analyzer.
5, according to claim 1 or 2 or 3 described laser output double cladding large mode field photon crystal optical laser devices, it is characterized in that: the exit end of described second dichroic mirror is provided with power meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200793714U CN201000999Y (en) | 2006-07-13 | 2006-07-13 | Laser output dual-cladding large mode field photonic crystal fiber laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200793714U CN201000999Y (en) | 2006-07-13 | 2006-07-13 | Laser output dual-cladding large mode field photonic crystal fiber laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201000999Y true CN201000999Y (en) | 2008-01-02 |
Family
ID=39015402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200793714U Expired - Fee Related CN201000999Y (en) | 2006-07-13 | 2006-07-13 | Laser output dual-cladding large mode field photonic crystal fiber laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201000999Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100561810C (en) * | 2006-07-13 | 2009-11-18 | 中国科学院西安光学精密机械研究所 | Mix Yb 3+Double cladding large mode field photon crystal optical laser device |
| CN113399825A (en) * | 2020-03-17 | 2021-09-17 | 深圳市联赢激光股份有限公司 | Laser device |
| CN113478074A (en) * | 2020-03-17 | 2021-10-08 | 深圳市联赢激光股份有限公司 | Laser device |
-
2006
- 2006-07-13 CN CNU2006200793714U patent/CN201000999Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100561810C (en) * | 2006-07-13 | 2009-11-18 | 中国科学院西安光学精密机械研究所 | Mix Yb 3+Double cladding large mode field photon crystal optical laser device |
| CN113399825A (en) * | 2020-03-17 | 2021-09-17 | 深圳市联赢激光股份有限公司 | Laser device |
| CN113478074A (en) * | 2020-03-17 | 2021-10-08 | 深圳市联赢激光股份有限公司 | Laser device |
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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: 20080102 Termination date: 20100713 |