CN102403648A - Frequency stabilization He-Ne laser structure - Google Patents
Frequency stabilization He-Ne laser structure Download PDFInfo
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- CN102403648A CN102403648A CN2011103977024A CN201110397702A CN102403648A CN 102403648 A CN102403648 A CN 102403648A CN 2011103977024 A CN2011103977024 A CN 2011103977024A CN 201110397702 A CN201110397702 A CN 201110397702A CN 102403648 A CN102403648 A CN 102403648A
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Abstract
The invention relates to a frequency stabilization He-Ne laser structure, which is a half inner cavity structure. The laser structure comprises a barrel-shaped spacer; the two ends of the spacer are fixed with first end plate and second end plate to form a sealed housing; one surface of the first end plate towards inside of the housing is installed with a piezoelectric ceramic; the end surface of the piezoelectric ceramic is installed with a reflection cavity mirror; a light path of the reflection cavity mirror is coincided with a central hole of the first end plate; one surface of the second end plate towards inside of the housing is installed with a laser gain tube; a light path of an output cavity mirror on the laser gain tube is coincided with a central hole of the second end plate; a discharging capillary tube is arranged in the laser gain tube; and axial line of the discharging capillary tube is coincided with the light path. The laser structure also comprises an absorption chamber mounted between the reflection cavity mirror and the laser gain tube, and the axial line of the absorption chamber is coincided with the light path of the He-Ne laser; and the laser gain tube and the absorption chamber are fixed by an annular support respectively. The frequency stabilization He-Ne laser structure takes an external reference frequency as a standard and has high long mechanical stability and reliability.
Description
Technical field
The present invention relates to a kind of He-Ne laser structure, relating more specifically to a kind of is the stabilizing He Ne laser structure of standard with extraneous reference frequency.
Background technology
He-Ne laser as the optical maser wavelength benchmark must possess highly stable structure, could realize the long-term stability of optical maser wavelength.
In common stabilizing He Ne laser,, have at least a chamber mirror to be installed on the optical adjustment frame for the ease of the adjustment resonant cavity.But the mechanical stability of optical adjustment frame is relatively poor, and factors such as the Stress Release of governor motion can cause the optical adjustment frame can not keep original position for a long time, thereby influences the long-time stability and the useful life of laser.If two chamber mirrors of laser all directly are fixed on the support, and do not use the optical adjustment frame, then can improve the long-term mechanical stability of laser effectively.
Summary of the invention
The object of the present invention is to provide a kind of stabilizing He Ne laser structure, to improve the mechanical stability of laser.
For realizing above-mentioned purpose, stabilizing He Ne laser structure provided by the invention is half inner-cavity structure, and it mainly comprises:
One spacer, the two ends of this spacer are fixed with first end plate and second end plate respectively, constitute a shell;
First end plate is equipped with piezoelectric ceramic towards the one side of enclosure, and the end face of this piezoelectric ceramic is equipped with reflecting cavity mirror, and the light path of this reflecting cavity mirror overlaps with the centre bore of first end plate;
Second end plate is equipped with gain tube towards the one side of enclosure, and the light path of the output cavity mirror on the gain tube overlaps with the centre bore of second end plate;
One absorption chamber is installed between reflecting cavity mirror and the laser gain pipe, and the axis of absorption chamber overlaps with the light path of He-Ne laser;
Laser gain pipe is fixed by toroidal support respectively with absorbing.
Described stabilizing He Ne laser structure, wherein, spacer is the tubular spacer of low linear expansion coefficient material; First end plate and second end plate are glass material; Epoxy resin bonding is used at the two ends of first end plate and second end plate and tubular spacer.
Described stabilizing He Ne laser structure, wherein, between reflecting cavity mirror and the piezoelectric ceramic, between piezoelectric ceramic and first end plate, between output cavity mirror and the laser gain pipe, all use epoxy sealing between output cavity mirror and second end plate.
Described stabilizing He Ne laser structure, wherein, the end face that laser gain pipe is connected with the output cavity mirror, and the two ends of absorption chamber are Brewster Angle Windows.
Described stabilizing He Ne laser structure; Wherein, The laser gain inside pipe wall is provided with sheet metal as the discharge negative electrode near the position of output cavity mirror, is provided with discharge capillary in the laser gain pipe, and the part that is connected with laser gain pipe at capillary is provided with an anode.
Described stabilizing He Ne laser structure; Wherein, the centre bore light path of first end plate connects a photelectric receiver, and this photelectric receiver connects a frequency stabilization circuit; And flexible by this frequency stabilization circuit output frequency stabilization signal controlling piezoelectric ceramic, the chamber of adjustment laserresonator is long.
Stabilizing He Ne laser of the present invention is carried out frequency stabilization with extraneous reference frequency as the discriminator standard, plays the effect that connects and support each optics in the laser through spacer.
Description of drawings
Fig. 1 is a stabilizing He Ne laser structural representation of the present invention.
Description of symbols in the accompanying drawing:
Specific embodiments:
Below in conjunction with the accompanying drawing illustrated embodiment the present invention is further described.
The schematic construction of He-Ne frequency stabilized carbon dioxide laser according to the invention is as shown in Figure 1, and it is half inner-cavity structure that does not contain any optical adjustment frame.The He-Ne laser cavity is fixed in the shell of being made up of tubular spacer 1 and first end plate 2,3 two end plates of second end plate.Use epoxy resin bonding between first end plate 2, second end plate 3 and the spacer 1.The material of spacer 1 is quartz glass or other low linear expansion coefficient material, like devitrified glass etc.The material of end plate is a glass.Tubular construction possesses higher mechanical stability with respect to beam frame structure.In addition, tubular construction can also provide the environment of relative closure for Laser Devices, reduces external environment and changes the influence to laser, and play good dust-obstructing efficiency.
The reflecting cavity mirror 4 of laserresonator is installed on the hollow piezoelectric ceramic 5.Piezoelectric ceramic 5 is installed on first end plate 2.Output cavity mirror 6 is installed in the top of laser gain pipe 7, uses epoxy sealing equally.The another side of output cavity mirror 6 and second end plate 3 are bonding.In addition, for making laser gain pipe 7 more firm, between spacer 1 and laser gain pipe 7, fill toroidal support 8.Charge into low pressure He-Ne mist in the laser gain pipe 7, as gain media.The tail end of laser gain pipe 7 is a Brewster Angle Windows.As discharge negative electrode 9, what use in the present embodiment is aluminium foil with the layer of metal thin slice at the rear portion of laser gain pipe 7 inwalls (near an end of output cavity mirror 6).A discharge capillary 10 is arranged in the laser gain pipe 7.The part that is connected with laser gain pipe 7 at capillary has an anode 11.When between anode 11 and negative electrode 9, applying sufficiently high direct voltage, will form glow discharge in the laser gain pipe 7.Like this, just formed a He-Ne laser by reflecting cavity mirror 4, output control mirror 6 and laser gain pipe 7.
Provide the absorption chamber 12 of extraneous reference frequency to be installed between reflecting cavity mirror 4 and the laser gain pipe 7.The axis of absorption chamber 12 overlaps with laser optical path.Absorption chamber 12 two ends are Brewster Angle Windows.The chamber length of this resonant cavity can be regulated through the piezoelectric ceramic 5 that links to each other with reflecting cavity mirror 4.Laserresonator after bonding only has reflecting cavity mirror 4 along the degree of freedom that has one dimension to move on the laser optical path direction, and other device is stationary state, so this structure has extraordinary long-term mechanical stability.
Laser beam penetrates from the centre bore of end plate 3.Tail light penetrates from the centre bore of end plate 2, is received by photelectric receiver 13, and converts the signal of telecommunication into and be input to frequency stabilization circuit 14.Frequency stabilization circuit 14 output frequency stabilization signal controlling piezoelectric ceramic 5 are flexible, and the chamber of adjustment laserresonator is long, thereby realizes the frequency stabilization of laser.
Claims (6)
1. a stabilizing He Ne laser structure is half inner-cavity structure, and it mainly comprises:
One spacer, the two ends of this spacer are fixed with first end plate and second end plate respectively, constitute a shell;
First end plate is equipped with piezoelectric ceramic towards the one side of enclosure, and the end face of this piezoelectric ceramic is equipped with reflecting cavity mirror, and the light path of this reflecting cavity mirror overlaps with the centre bore of first end plate;
Second end plate is equipped with laser gain pipe towards the one side of enclosure, and wherein the end face of the output cavity mirror on the laser gain pipe is connected with the top of laser gain pipe, and the light path of this output cavity mirror overlaps with the centre bore of second end plate;
One absorption chamber is installed between reflecting cavity mirror and the laser gain pipe, and the axis of absorption chamber overlaps with the light path of He-Ne laser;
Laser gain pipe is fixed by toroidal support respectively with absorbing.
2. stabilizing He Ne laser structure according to claim 1, wherein, spacer is the tubular spacer of low linear expansion coefficient material; First end plate and second end plate are glass material; Epoxy resin bonding is used at the two ends of first end plate and second end plate and tubular spacer.
3. stabilizing He Ne laser structure according to claim 1; Wherein, between reflecting cavity mirror and the piezoelectric ceramic, between the piezoelectric ceramic and first end plate, between output cavity mirror and the laser gain pipe, all use epoxy sealing between the output cavity mirror and second end plate.
4. stabilizing He Ne laser structure according to claim 1, wherein, laser gain pipe points to the end face of reflecting cavity mirror, and the two ends of absorption chamber are Brewster Angle Windows.
5. stabilizing He Ne laser structure according to claim 1; Wherein, The laser gain inside pipe wall is provided with sheet metal as the discharge negative electrode near the position of output cavity mirror; Be provided with discharge capillary in the laser gain pipe, the part that is connected with laser gain pipe at capillary is provided with an anode.
6. stabilizing He Ne laser structure according to claim 1; Wherein, the centre bore light path of first end plate connects a photelectric receiver, and this photelectric receiver connects a frequency stabilization circuit; And flexible by this frequency stabilization circuit output frequency stabilization signal controlling piezoelectric ceramic, the chamber of adjustment laserresonator is long.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103977024A CN102403648A (en) | 2011-12-02 | 2011-12-02 | Frequency stabilization He-Ne laser structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103977024A CN102403648A (en) | 2011-12-02 | 2011-12-02 | Frequency stabilization He-Ne laser structure |
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| Publication Number | Publication Date |
|---|---|
| CN102403648A true CN102403648A (en) | 2012-04-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103977024A Pending CN102403648A (en) | 2011-12-02 | 2011-12-02 | Frequency stabilization He-Ne laser structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532002A (en) * | 2013-10-22 | 2014-01-22 | 华北电力大学（保定） | Rapid frequency stabilization method of solid or gas laser device |
| CN106524898A (en) * | 2016-11-21 | 2017-03-22 | 北京镭测科技有限公司 | Frequency stabilizing device and method for output frequency difference of dual-frequency laser |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3609587A (en) * | 1969-10-27 | 1971-09-28 | Hughes Aircraft Co | Gas laser with adjustable mirror |
| CN85202356U (en) * | 1985-06-21 | 1986-04-02 | 北京工业学院 | Traverse steady-freguency zeeman laser |
| CN2053386U (en) * | 1988-12-31 | 1990-02-21 | 清华大学 | He-ne dual-frequency laser with quartz crystal tuning |
-
2011
- 2011-12-02 CN CN2011103977024A patent/CN102403648A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3609587A (en) * | 1969-10-27 | 1971-09-28 | Hughes Aircraft Co | Gas laser with adjustable mirror |
| CN85202356U (en) * | 1985-06-21 | 1986-04-02 | 北京工业学院 | Traverse steady-freguency zeeman laser |
| CN2053386U (en) * | 1988-12-31 | 1990-02-21 | 清华大学 | He-ne dual-frequency laser with quartz crystal tuning |
Non-Patent Citations (3)
| Title |
|---|
| 倪育才等: "长度计量基准的研究", 《中国计量》 * |
| 宋金城等: "633nm激光波长标准装置", 《宇航计测技术》 * |
| 钱进等: "一种新型的碘稳定633nm He-Ne激光***", 《计量学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532002A (en) * | 2013-10-22 | 2014-01-22 | 华北电力大学（保定） | Rapid frequency stabilization method of solid or gas laser device |
| CN103532002B (en) * | 2013-10-22 | 2015-11-25 | 华北电力大学（保定） | A kind of solid or gas laser rapid frequency stabilization |
| CN106524898A (en) * | 2016-11-21 | 2017-03-22 | 北京镭测科技有限公司 | Frequency stabilizing device and method for output frequency difference of dual-frequency laser |
| CN106524898B (en) * | 2016-11-21 | 2019-12-13 | 北京镭测科技有限公司 | Frequency stabilizing device and method for output frequency difference of double-frequency laser |
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Application publication date: 20120404 |