CN218677952U - Energy-adjustable microchip laser - Google Patents
Energy-adjustable microchip laser Download PDFInfo
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- CN218677952U CN218677952U CN202222114487.9U CN202222114487U CN218677952U CN 218677952 U CN218677952 U CN 218677952U CN 202222114487 U CN202222114487 U CN 202222114487U CN 218677952 U CN218677952 U CN 218677952U
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Abstract
The utility model relates to an adjustable microchip laser of energy, including laser module, light regulating part and driving motor, light regulating part rotates with driving motor to be connected, and light regulating part has the regulation region that changes gradually along the circumferencial direction luminousness, and the laser module is used for following laser exit opening transmission laser, and the regulation region of light regulating part is located laser emission's light path, and driving motor is used for the drive to adjust regional rotation in the light regulating part, makes the laser energy of process change. The energy-adjustable microchip laser is directly connected with the light adjusting part through the driving motor, so that the energy-adjustable microchip laser has higher stability and reliability for small-angle rotation of energy adjustment and occupies small space.
Description
Technical Field
The utility model relates to a technical field of laser instrument especially relates to an energy adjustable microchip laser instrument.
Background
In the field of laser application research, it is often necessary to adjust the amount of laser energy in order to control the laser power and facilitate laser experiments, such as research on the excitation spectrum of a certain atom or the excitation ionization path of a certain atom. These require a tight and accurate control of the laser power, which can be adjusted quickly at any time. Meanwhile, the laser energy is required to be adjusted repeatedly in the experiment process, so that the reliability of experiment data is ensured, and the laser energy adjusting device is required to have certain stability and repeatability.
At present, a laser energy adjusting device in the prior art has a series of problems of complex laser light path construction, complex adjustment, difficult adjustment, low flexibility, poor repeatability, low adjustment accuracy and the like.
SUMMERY OF THE UTILITY MODEL
Based on this, the present invention is directed to overcome the shortcomings and drawbacks of the prior art and to provide an energy tunable microchip laser.
The embodiment of the utility model provides an energy-adjustable microchip laser, include:
the laser module is used for emitting laser from the laser emitting port;
the light adjusting part is provided with an adjusting area with gradually changed light transmittance along the circumferential direction, and the adjusting area is positioned on a light path emitted by the laser;
the driving motor, the portion of adjusting is adjusted with driving motor rotates to be connected, driving motor is used for the drive the regulation region on the portion of adjusting is adjusted along the circumferencial direction rotation to the light.
Furthermore, the light adjusting part is a circular gradient density sheet, a connecting part is arranged at the circle center of the circular gradient density sheet, and the connecting part is fixed on a motor shaft of the driving motor.
Furthermore, the connecting portion comprises a shaft sleeve and a locking nut, the shaft sleeve is sleeved on the motor shaft, the circular gradient density sheet is sleeved on the shaft sleeve, and the locking nut is used for locking and fixing the circular gradient density sheet on the shaft sleeve.
The optical transition device is characterized by further comprising a zero point position detection unit, wherein the zero point position detection unit is arranged close to the circular gradient density sheet, and is used for detecting whether the current position of the circular gradient density sheet is an optical transition position.
Further, the zero point position detection unit is a U-shaped photoelectric switch, and the circular gradient density sheet partially penetrates through a groove of the U-shaped photoelectric switch.
Furthermore, the device also comprises a rotation angle measuring unit, wherein the rotation angle measuring unit is close to the circular gradient density sheet, and is used for measuring the rotation angle of the circular gradient density sheet.
Further, the rotation angle measuring unit is a hall angle sensor or a potentiometer.
Further, light regulating part includes pinion, gear wheel, fixed axle, half slide and selects partial device, the pinion is fixed in on driving motor's the motor shaft, the gear wheel part is fixed in the one end of fixed axle, the pinion meshing the gear wheel, the fixed axle is hollow structure, half slide with the centre of a circle of selecting partial device is in on the axis of fixed axle, half slide be located select partial device with between the fixed axle, half slide is fixed in the gear wheel.
Further, still include turned angle measuring unit, turned angle measuring unit is close to the gear wheel setting, turned angle measuring unit is used for measuring the turned angle of gear wheel.
Further, the rotation angle measuring unit is a hall angle sensor or a potentiometer.
Compared with the prior art, the utility model discloses an adjustable microchip laser of energy's beneficial effect as follows:
1. the utility model discloses an adjustable microchip laser of energy passes through driving motor lug connection light control section, more has stability and reliability to the low-angle rotation of energy control, and occupation space is little.
2. The utility model discloses an adjustable microchip laser of energy is through setting up U type photoelectric switch detection zero position, and the directness of cancellation conventional detecting instrument to the light adjustment part touches, has reduced the unexpected damage to optical device.
Drawings
Fig. 1 is a schematic structural diagram of an energy tunable microchip laser according to an embodiment of the present invention;
FIG. 2 is a partial schematic view of the energy tunable microchip laser of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 2;
fig. 4 is a cross-sectional structural view of an energy tunable microchip laser according to another embodiment of the present invention;
in the figure: 1. a laser module; 2. a drive motor; 3. a circular graded density patch; 4. a U-shaped photoelectric switch; 5. a shaft sleeve; 6. locking the nut; 7. a pinion gear; 8. a bull gear; 9. a fixed shaft; 10. a half of glass slide; 31. the optical jump position.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Example 1
To the technical problem in the background art, the embodiment of the utility model provides an energy-adjustable microchip laser, as shown in fig. 1, in an embodiment, energy-adjustable microchip laser includes laser module 1, regulating part and driving motor 2 are adjusted to light, regulating part rotates with driving motor 2 to be connected to light, regulating part has the regulation region of following circumferencial direction luminousness gradual change light adjusting part, laser module 1 is used for following laser emission mouth transmission laser, the regulation region of regulating part is located laser emission's light path light adjusting part, driving motor 2 is used for driving the regulation region rotation on the regulating part of light, the laser energy that makes the process changes.
Specifically, as shown in fig. 2 to 3, the light adjusting portion is a circular gradient density sheet 3, the surface of which is plated with a dielectric reflective film, and the light adjusting portion has a function of gradually changing the light transmittance along the circumferential direction, and is located at a boundary position where the light transmittance changes most strongly and the light transmittance changes least strongly. The circle center of the circular gradient density sheet 3 is provided with a connecting part which is fixed on a motor shaft of the driving motor 2.
The connecting portion includes axle sleeve 5 and lock nut 6, and on the motor shaft was located to axle sleeve 5 cover, circular gradual change density piece 3 set up on axle sleeve 5, and lock nut 6 is used for locking fixed circular gradual change density piece 3 on axle sleeve 5. In other examples, the connecting portion may be other connecting means such as a bearing.
Furthermore, the energy-tunable microchip laser further includes a zero position detection unit and a rotation angle measurement unit (not shown), the zero position detection unit and the rotation angle measurement unit are disposed near the circular gradient density sheet 3, the zero position detection unit is used for detecting whether the current position of the circular gradient density sheet 3 is the optical jump position 31, and the rotation angle measurement unit is used for measuring the rotation angle of the circular gradient density sheet 3.
Specifically, the zero point position detection unit is a U-shaped photoelectric switch 4, a part of the circular gradient density sheet 3 passes through a groove of the U-shaped photoelectric switch 4, and when a boundary position where the light transmittance change of the circular gradient density sheet 3 is strongest and the light transmittance change is weakest, namely the optical transition position 31, passes through the U-shaped photoelectric switch 4, an actual position where the optical transition position 31 is located is marked as a zero point position. By confirming the zero point position, the circular gradient density sheet 3 can be directly reset by the drive circuit of the drive motor 2.
The rotation angle measuring unit is a hall angle sensor (not shown) or a potentiometer (not shown), and the absolute angle of the circular gradient density sheet 3 is measured by the hall angle sensor or the potentiometer.
Example 2
As shown in fig. 4, the present embodiment is substantially the same as embodiment 1, and is different from embodiment 1 in that the light adjusting portion includes a small gear 7, a large gear 8, a fixing shaft 9, a half glass sheet 10 and a Polarization Beam Splitter (PBS) (not shown), the small gear 7 is fixed on a motor shaft of the driving motor 2, the large gear 8 is partially fixed at one end of the fixing shaft 9, the small gear 7 engages with the large gear 8, the fixing shaft 9 is a hollow structure, the centers of the half glass sheet 10 and the Polarization Beam Splitter (PBS) are located on the axis of the fixing shaft 9, the half glass sheet 10 is located between the Polarization Beam Splitter (PBS) and the fixing shaft 9, and the half glass sheet 10 is fixed in the large gear 8. The polarization beam splitter prism corresponds to an analyzer for obtaining laser light having a certain polarization direction, and in other examples, other types of polarization selection devices may be provided in addition to the polarization beam splitter Prism (PBS).
When the laser device works, laser emitted by the laser emitting port is linearly polarized laser, enters the fixed shaft 9 and enters the half wave plate 10, the driving motor 2 drives the half glass plate 10 to rotate through transmission of the pinion 7 and the gearwheel 8, phase delay of incident light is changed, so that the polarization direction of the incident linearly polarized light is changed, two beams of laser in orthogonal directions are obtained through the Polarization Beam Splitter (PBS), one beam is strong and the other beam is weak, one beam is strong, one beam is selected to be output, the other beam is blocked, and the highest energy can be kept to the maximum extent.
Compared with the prior art, the utility model discloses adjustable microchip laser of energy's of embodiment beneficial effect as follows:
1. the utility model discloses an adjustable microchip laser of energy passes through driving motor lug connection light control section, more has stability and reliability to the low-angle rotation of energy control, and occupation space is little.
2. The utility model discloses an adjustable microchip laser of energy is through setting up U type photoelectric switch detection zero position, and the directness of cancellation conventional detecting instrument to the light adjustment part touches, has reduced the unexpected damage to optical device.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (10)
1. An energy tunable microchip laser, comprising:
the laser module is used for emitting laser from the laser emitting port;
the light adjusting part is provided with an adjusting area with gradually changed light transmittance along the circumferential direction, and the adjusting area is positioned on a light path emitted by the laser;
the driving motor, the portion of adjusting is adjusted with driving motor rotates to be connected, driving motor is used for the drive the regulation region on the portion of adjusting is adjusted along the circumferencial direction rotation to the light.
2. The energy tunable microchip laser of claim 1, wherein:
the light adjusting part is a circular gradient density sheet, a connecting part is arranged at the circle center of the circular gradient density sheet, and the connecting part is fixed on a motor shaft of the driving motor.
3. The energy tunable microchip laser of claim 2, wherein:
the connecting part comprises a shaft sleeve and a locking nut, the shaft sleeve is sleeved on the motor shaft, the circular gradient density sheet is sleeved on the shaft sleeve, and the locking nut is used for locking and fixing the circular gradient density sheet on the shaft sleeve.
4. An energy tunable microchip laser as defined in claim 2, wherein:
the optical jump density piece is characterized by further comprising a zero point position detection unit, wherein the zero point position detection unit is close to the circular gradient density piece, and is used for detecting whether the current position of the circular gradient density piece is an optical jump position.
5. The energy tunable microchip laser of claim 4, wherein:
the zero point position detection unit is a U-shaped photoelectric switch, and the circular gradient density sheet part penetrates through a groove of the U-shaped photoelectric switch.
6. An energy tunable microchip laser as defined in claim 2, wherein:
the device is characterized by further comprising a rotation angle measuring unit, wherein the rotation angle measuring unit is close to the circular gradient density sheet, and is used for measuring the rotation angle of the circular gradient density sheet.
7. The energy tunable microchip laser of claim 6, wherein:
the rotation angle measuring unit is a Hall angle sensor or a potentiometer.
8. The energy tunable microchip laser of claim 1, wherein:
the light adjusting part comprises a pinion, a gearwheel, a fixed shaft, a half glass slide and a polarization selecting device, the pinion is fixed on a motor shaft of the driving motor, the gearwheel is partially fixed at one end of the fixed shaft, the pinion is meshed with the gearwheel, the fixed shaft is of a hollow structure, the half glass slide and the center of a circle of the polarization selecting device are located on the axis of the fixed shaft, the half glass slide is located between the polarization selecting device and the fixed shaft, and the half glass slide is fixed in the gearwheel.
9. The energy tunable microchip laser of claim 8, wherein:
the gear wheel rotating angle measuring device is characterized by further comprising a rotating angle measuring unit, wherein the rotating angle measuring unit is close to the gear wheel, and is used for measuring the rotating angle of the gear wheel.
10. The energy tunable microchip laser of claim 9, wherein:
the rotation angle measuring unit is a Hall angle sensor or a potentiometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222114487.9U CN218677952U (en) | 2022-08-10 | 2022-08-10 | Energy-adjustable microchip laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222114487.9U CN218677952U (en) | 2022-08-10 | 2022-08-10 | Energy-adjustable microchip laser |
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| Publication Number | Publication Date |
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| CN218677952U true CN218677952U (en) | 2023-03-21 |
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| CN202222114487.9U Active CN218677952U (en) | 2022-08-10 | 2022-08-10 | Energy-adjustable microchip laser |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116487984A (en) * | 2023-05-15 | 2023-07-25 | 密尔医疗科技(深圳)有限公司 | Nonreciprocal phase shifter and laser |
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2022
- 2022-08-10 CN CN202222114487.9U patent/CN218677952U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116487984A (en) * | 2023-05-15 | 2023-07-25 | 密尔医疗科技(深圳)有限公司 | Nonreciprocal phase shifter and laser |
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