CN102780151B - Optical-fiber coupled output end surface pumped solid-state laser and manufacture technology - Google Patents
Optical-fiber coupled output end surface pumped solid-state laser and manufacture technology Download PDFInfo
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- CN102780151B CN102780151B CN201210259282.8A CN201210259282A CN102780151B CN 102780151 B CN102780151 B CN 102780151B CN 201210259282 A CN201210259282 A CN 201210259282A CN 102780151 B CN102780151 B CN 102780151B
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- end surface
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Abstract
The invention discloses an optical-fiber coupled output end surface pumped solid-state laser and a manufacture technology. The optical-fiber coupled output end surface pumped solid-state laser comprises a laser medium and an output optical fiber, wherein the laser medium and the output optical fiber are fixed in a shell; one end surface of the laser medium is coated with a 1064nm total-reflection film and a 808nm total-penetration film; the end surface of the output optical fiber in the shell is coated with a 1064nm partial-penetration film and a 808nm total-reflection film; the end surface of the laser medium, which is coated with the 1064nm total-reflection film, and the end surface of the output optical fiber, which is coated with the 1064nm partial-penetration film, form a resonant cavity in the shell; the end surface laser diode in the cavity acts on the laser medium; the laser medium is subjected to extra-cavity pumping by the end surface laser diode; and paired 1064 oscillation output is formed in the cavity. The optical-fiber coupled output end surface pumped solid-state laser disclosed by the invention is favorable for improving the light beam quality and simplifying a DPL (diode pumped solid-state laser) optical fiber output coupling structure. Because the diameter of the optical fiber end surface is small, high-order mode oscillation in the resonant cavity can be inhibited, and the defects of the traditional coupled mode are overcome.
Description
Technical field
The present invention relates to a kind of laser diode pump solid state laser device, particularly a kind of coupling fiber output end face light-pumped solid state laser and manufacturing process.
Background technology
Laser diode pump solid state laser device (DPL) is normally directly exported with window form, the DPL of this way of output is in use directly output due to light beam, limited flexibility that laser uses and and other use being of coupled connections between the instrument and equipment of DPL.
Traditional DPL coupling fiber output intent is that outgoing mirror (or laser housing) outside at DPL increases a coupling device, by the light beam coupling of exporting by window in optical fiber, again through being of coupled connections between optical fiber and the optical instrument (or equipment) of other use DPL, this method regulates coupling difficulty, long-time use easily occurs that coupling efficiency reduces, need to readjust coupling, meanwhile increased DPL volume, weight and outward appearance incoordination.
Summary of the invention
The object of this invention is to provide that a kind of volume is little, reliability and high coupling fiber output end face light-pumped solid state laser and the manufacturing process of coupling efficiency.
The object of the present invention is achieved like this, a kind of coupling fiber output end face light-pumped solid state laser, it is characterized in that: comprise the laser medium and the output optical fibre that are fixed in housing, be coated with 1064nm be all-trans film and 808nm full-trans-parent film at an end face of laser medium, output optical fibre end face in housing plating 1064nm part transmission film and the 808nm film that is all-trans, laser medium is coated with the be all-trans end face of film and output optical fibre plating 1064nm part transmission film end face of 1064nm and in housing, forms resonant cavity, act on laser medium by chamber inner face laser diode, laser medium is subject to pumping outside end face laser diode chamber, in chamber, form 1064nm vibration output.
Between end face laser diode and laser medium, there is optical coupling lens.
Between laser medium and output optical fibre, there is adjusting Q crystal.
Channel diameter and the output optical fibre external diameter of the described fixing output optical fibre of housing are tightly fixed, and make optical axis coincidence in output optical fibre end face and chamber; Described passage length is the more than 3 times of output optical fibre diameter.
Described output optical fibre is fixed on one and is with in externally threaded hollow pipe, and hollow pipe is coaxial with output optical fibre, and hollow pipe is threaded with passage by external screw thread, by hollow pipe threaded adjusting output optical fibre inner face and laser medium end face chamber distance.
There is securing member described hollow pipe outer face, and securing member is used for locating hollow pipe on the one hand, on the other hand for proofread and correct the optical axis coincidence degree in hollow pipe and chamber by colimated light system.
A manufacturing process for coupling fiber output end face light-pumped solid state laser, is characterized in that:
1) obtain metal bar;
2) by housing requirement processing external diameter;
3) coaxially process end face laser diode cavity;
4) coaxially process coupled lens cavity, make coupled lens cavity external diameter be greater than laser diode cavity external diameter;
5) coaxially process laser medium cavity, make laser medium cavity external diameter be greater than coupled lens cavity external diameter;
6) coaxially process adjusting Q crystal cavity, make adjusting Q crystal cavity external diameter be greater than laser medium cavity external diameter;
7) processing laser diode lead channels hole;
8) screw thread in or beyond processing;
9), by another section of same bar, coaxially process the external diameter of output optical fibre end cap;
10) coaxially process output optical fibre passage;
11) coaxially process outer or internal thread, fore shell is coordinated with end cap;
12) successively by laser diode, coupled lens, laser medium, adjusting Q crystal is supporting packs in left shell;
13) output optical fibre assembly is packed in right shell body;
14) laser diode and adjusting Q crystal lead-in wire are drawn from lead channels;
15) left shell is connected with right shell body.
Between described laser diode and laser diode cavity, coordinate by external member.
Between described coupled lens and coupled lens cavity, coordinate by external member.
Between described laser medium and laser medium cavity, coordinate by external member; Between adjusting Q crystal and adjusting Q crystal cavity, coordinate by external member.
Advantage of the present invention is: owing to being by be coated with 1064nm be all-trans film and 808nm full-trans-parent film at an end face of laser medium, output optical fibre end face in housing plating 1064nm part transmission film and the 808nm film that is all-trans, laser medium is coated with the be all-trans end face of film and output optical fibre plating 1064nm part transmission film end face of 1064nm and in housing, forms resonant cavity, the outer pumping of laser medium Stimulated Light diode cavity forms 1064nm vibration output in chamber.Utilize like this end face of ordinary optic fibre as the output window of DPL, form an oscillating element of DPL resonant cavity, the output beam of DPL is directly exported by optical fiber, be conducive to improve beam quality, simplify DPL optical fiber output coupled structure.Because fiber end face diameter is less, can suppress the vibration of high-rder mode in resonant cavity again, overcome the shortcoming of traditional coupled modes.Secondly,, due to output window miniaturization, be conducive to DPL through engineering approaches, modularization and standardized designs.
Accompanying drawing explanation
Below in conjunction with embodiment accompanying drawing, the invention will be further described:
Fig. 1 is the embodiment of the present invention 1 structural representation;
Fig. 2 is hollow pipe structural representation;
Fig. 3 is collimation fastener constructions schematic diagram;
Fig. 4 is the embodiment of the present invention 2 structural representations;
Fig. 5 is the embodiment of the present invention 3 structural representations;
Fig. 6 is the embodiment of the present invention 4 structural representations.
Fig. 7 is the collimation fastener constructions schematic diagram with standard SMA905 optical fiber connector interface.
In figure, 1, housing; 2, laser medium; 3, optical axis in chamber; 4, passage; 5, collimation securing member; 6, output optical fibre; 7, output window; 8, resonant cavity; 9, coupled lens; 10, end face laser diode; 11, lead channels; 12, adjusting Q crystal; 13, hollow pipe; 14, side laser diode; 15, SMA905 optical fiber connector seat; 16, SMA905 optical fiber connector interface.
Embodiment
Embodiment 1
As shown in Figure 1, a kind of coupling fiber output end face light-pumped solid state laser, comprise the laser medium 2 and the output optical fibre 6 that are fixed in housing 1, be coated with 1064nm be all-trans film and 808nm full-trans-parent film in the left side of laser medium 2, right side is coated with 1064nm anti-reflection film and the 808nm film that is all-trans; Output optical fibre in housing 16 end faces plating 1064nm part transmission films and the 808nm film that is all-trans, laser medium 2 is coated with 1064nm and is all-trans the end face of film and end face that output optical fibre 6 is coated with 1064nm part transmission film at the interior formation resonant cavity 8 of housing 1, end face laser diode 10 and coupled lens 9 are from left to right fixed on the left end of laser medium 2 successively, end face laser diode 10 acts on laser medium 2 by coupled lens 9, laser medium 2 is subject to pumping outside end face laser diode chamber, forms 1064nm vibration output in chamber.
The fixing output optical fibre 6 of housing 1 has a passage 4, and passage 4 diameters and output optical fibre 6 external diameters are tightly fixed, and make output window 7(or the end face of output optical fibre 6) vertical with optical axis in chamber 3.
Described passage 4 length are the more than 3 times of output optical fibre 6 diameters, to guarantee the stable and reliable of output optical fibre 6.
Certainly, output optical fibre 6 also can be fixed on one and be with in externally threaded hollow pipe 13, and hollow pipe 13 is coaxial with output optical fibre 6, as shown in Figure 2, hollow pipe 13 is threaded with passage by external screw thread, by hollow pipe 13 threaded adjusting output optical fibre 6 inner faces and laser medium end face chamber distance.
In order to make technique reasonable, there is collimation securing member 5 hollow pipe 13 outer faces, and as shown in Figure 3, collimation securing member 5 is used for locating hollow pipe 13 on the one hand, on the other hand for proofread and correct the optical axis coincidence degree of each element in chamber by colimated light system.Secondly, collimation securing member 5 connection standard SMA905 optical fiber connector seats 15, as shown in Figure 7, while needs, connect the output optical fibre of random length by SMA905 optical fiber connector interface 16, and the not used time, entirety can be encapsulated, and bring convenience to transportation, maintenance.
As shown in Figure 4, embodiment 2 difference from Example 1 are: between laser medium 2 and output optical fibre 6 inner faces, increased adjusting Q crystal 12, formed laser diode-pumped Q-switch solid laser.
As shown in Figure 5, embodiment 3 difference from Example 2 are: not only between laser medium 2 and output optical fibre 6 inner faces, increased adjusting Q crystal 12, formed laser diode-pumped Q-switch solid laser.Meanwhile, increased pumping side laser diode 14 in laser medium 2 sides, pumping side laser diode 14 and the common pumping laser medium 2 of pumping end surface laser diode 10, improve power output.
As shown in Figure 6, embodiment 4 difference from Example 1 are: increased pumping side laser diode 14 in laser medium 2 one sides, pumping side laser diode 14 and the common pumping laser medium 2 of pumping end surface laser diode 10, improve power output, there is no adjusting Q crystal 12, exportable continuous power.
A manufacturing process for coupling fiber output end face light-pumped solid state laser, is characterized in that: 1) obtain metal bar;
2) by housing 1 requirement processing external diameter;
3) coaxially process end face laser diode cavity;
4) coaxially process coupled lens cavity, make coupled lens cavity external diameter be greater than laser diode cavity external diameter;
5) coaxially process laser medium 2 cavitys, make laser medium 2 cavity external diameters be greater than coupled lens cavity external diameter;
6) coaxially process adjusting Q crystal 12 cavitys, make adjusting Q crystal 12 cavity external diameters be greater than laser medium 2 cavity external diameters;
7) processing laser diode lead channels hole;
8) screw thread in or beyond processing;
9), by another section of same bar, coaxially process the external diameter of output optical fibre end cap;
10) coaxially process output optical fibre passage;
11) coaxially process outer or internal thread, fore shell is coordinated with end cap;
12) successively by laser diode, coupled lens, laser medium, adjusting Q crystal is supporting packs in left shell;
13) output optical fibre assembly is packed in right shell body;
14) laser diode and adjusting Q crystal lead-in wire are drawn from lead channels;
15) left shell is connected with right shell body.
Between laser diode and laser diode cavity, coordinate by external member.
Between coupled lens and coupled lens cavity, coordinate by external member.
Between laser medium and laser medium cavity, coordinate by external member.
Between adjusting Q crystal and adjusting Q crystal cavity, coordinate by external member.
The parts that the present embodiment does not describe in detail and structure belong to well-known components and common structure or the conventional means of the industry, here not narration one by one.
Claims (3)
1. a coupling fiber output end face light-pumped solid state laser, it is characterized in that: comprise the laser medium (2) and the output optical fibre (6) that are fixed in housing (1), be coated with 1064nm be all-trans film and 808nm full-trans-parent film at an end face of laser medium (2), output optical fibre (6) end face plating 1064nm part transmission film in housing (1) and the 808nm film that is all-trans, laser medium (2) is coated be all-trans end face and output optical fibre (6) the plating 1064nm part transmission film end face of film of 1064nm and in housing (1), forms resonant cavity (8);
Act on laser medium (2) by outer face, chamber laser diode (10) upper, laser medium (2) is subject to pumping outside end face laser diode (10) chamber, forms 1064nm vibration output in chamber;
Described output optical fibre (6) is fixed on one and is with in externally threaded hollow pipe (13), hollow pipe (13) is coaxial with output optical fibre (6), hollow pipe (13) is threaded with passage by external screw thread, by hollow pipe (13) threaded adjusting output optical fibre (6) inner face and laser medium (2) end face chamber distance;
There is securing member described hollow pipe (13) outer face, and securing member is used for locating hollow pipe (13) on the one hand, on the other hand for proofread and correct the optical axis coincidence degree in hollow pipe (13) and chamber by colimated light system; Securing member connects optical fiber connector seats (15), connects the output optical fibre of random length by optical fiber connector interface (16).
2. according to a kind of coupling fiber output end face light-pumped solid state laser of claim 1, it is characterized in that: between end face laser diode (10) and laser medium (2), have optical coupling lens (9).
3. according to a kind of coupling fiber output end face light-pumped solid state laser of claim 1, it is characterized in that: between laser medium (2) and output optical fibre (6), have adjusting Q crystal (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210259282.8A CN102780151B (en) | 2012-07-25 | 2012-07-25 | Optical-fiber coupled output end surface pumped solid-state laser and manufacture technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210259282.8A CN102780151B (en) | 2012-07-25 | 2012-07-25 | Optical-fiber coupled output end surface pumped solid-state laser and manufacture technology |
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| Publication Number | Publication Date |
|---|---|
| CN102780151A CN102780151A (en) | 2012-11-14 |
| CN102780151B true CN102780151B (en) | 2014-06-18 |
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| CN201210259282.8A Expired - Fee Related CN102780151B (en) | 2012-07-25 | 2012-07-25 | Optical-fiber coupled output end surface pumped solid-state laser and manufacture technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102810812B (en) * | 2012-07-25 | 2014-10-15 | 西安电子科技大学 | Fiber-coupled output Q-switched solid-state laser and manufacturing process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1564389A (en) * | 2004-04-12 | 2005-01-12 | 武汉华工飞腾光子科技有限公司 | Laser LED pump solid laser |
| CN101557070A (en) * | 2009-05-19 | 2009-10-14 | 天津大学 | Acousto-optic Q-switched ytterbium-doped all-fiber laser |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3788640B2 (en) * | 1996-09-06 | 2006-06-21 | 北海道電力株式会社 | Pulse power supply |
| JP4750053B2 (en) * | 2007-02-07 | 2011-08-17 | 株式会社小松製作所 | Discharge excitation gas laser discharge circuit |
| US8238400B2 (en) * | 2010-08-09 | 2012-08-07 | Coherent Gmbh | High-precision synchronization of pulsed gas-discharge lasers |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1564389A (en) * | 2004-04-12 | 2005-01-12 | 武汉华工飞腾光子科技有限公司 | Laser LED pump solid laser |
| CN101557070A (en) * | 2009-05-19 | 2009-10-14 | 天津大学 | Acousto-optic Q-switched ytterbium-doped all-fiber laser |
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| CN102780151A (en) | 2012-11-14 |
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Granted publication date: 20140618 Termination date: 20190725 |