CN218547065U - 532nm free space optical-fiber coupler with QBH interface - Google Patents
532nm free space optical-fiber coupler with QBH interface Download PDFInfo
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- CN218547065U CN218547065U CN202222934448.3U CN202222934448U CN218547065U CN 218547065 U CN218547065 U CN 218547065U CN 202222934448 U CN202222934448 U CN 202222934448U CN 218547065 U CN218547065 U CN 218547065U
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- beam expander
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Abstract
The utility model discloses a 532nm free space light-fiber coupler of QBH interface, including the box that connects between laser output and optic fibre, be provided with adjustable beam expander group of divergence angle and XYZ triaxial adjusting mirror group in the box, BH fiber connector's output is connected with optic fibre, and adjustable beam expander group of divergence angle is provided with 532nm anti-reflection coating film, and XYZ triaxial adjusting mirror group is provided with 532nm focusing lens; the utility model discloses an in laser instrument output and QBH optic fibre are provided with adjustable beam expanding mirror group of divergence angle and ZYX triaxial adjusting mirror group and get into optic fibre, free space 532nm laser is after the adjustable beam expanding of divergence angle, and the light beam focusing gets into optic fibre to reach the purpose of free dimension processing through fiber transmission, make laser can be nimble transmission in the complex space, do not receive the space restriction. Meanwhile, the distribution quality of the transverse mode of the light beam can be improved by optical fiber coupling.
Description
Technical Field
The present invention relates to an optical device or apparatus for controlling light intensity, color, phase, polarization or direction using a movable or deformable optical element, for example, in the technical field of switching, gating, modulation, and more particularly to a 532nm free-space optical-fiber coupler for a QBH interface.
Background
Because an oscillator, a Q-switching device and a frequency doubling device are all of spatial structures, most of output laser is free-space light, a common use method is to carry out shaping, beam expanding and focusing in a transmission path and then directly transmit the laser to a workpiece through space, so that the optical path has extremely high alignment requirements and pointing requirements, the free-dimension processing cost is limited, and the free-space light is subjected to optical fiber coupling in the patent, and the purpose of free-dimension processing is achieved through optical fiber transmission.
Disclosure of Invention
The utility model aims at solving the shortcoming that exists among the prior art, and the 532nm free space light-fiber coupler of a QBH interface that proposes, this 532nm free space light-fiber coupler of QBH interface is through being provided with in laser instrument output and QBH optic fibre that adjustable beam expander group of divergence angle and ZYX triaxial adjusting mirror group get into optic fibre, free space 532nm laser is after the adjustable beam expander group of divergence angle, light beam focusing gets into optic fibre, and reach the purpose of free dimension processing through fiber transmission, make laser can be nimble transmission in the complex space, do not receive the space restriction. Meanwhile, the distribution quality of the transverse mode of the light beam can be improved by optical fiber coupling.
In order to achieve the above object, the utility model relates to a 532nm free space light-fiber coupler of QBH interface, including setting up the box between laser output and optic fibre, be provided with adjustable beam expander group of divergence angle and XYZ triaxial adjusting mirror group in the box, box one end is provided with the input of being connected with the laser output, the box other end is connected with BH fiber connector, BH fiber connector's output and fiber connection, adjustable beam expander group of divergence angle is provided with 532nm anti-reflection coating film, XYZ triaxial adjusting mirror group is provided with 532nm focusing lens.
Furthermore, the beam expansion multiple of the beam expander set with the adjustable divergence angle is 1-4 times.
Further, the adjustable beam expander set with the divergence angle comprises a mounting seat and a beam expander, wherein the mounting seat is mounted in the box body through a fixing bolt, the beam expander is arranged on the mounting seat, the 532nm antireflection coating is arranged on the beam expander, and an adjusting screw rod for adjusting the divergence angle of the beam expander and a locking spiral ring for locking the adjusting screw rod are arranged on the mounting seat.
Further, the XYZ three-axis adjusting mirror group comprises a mirror bracket fixed in a box body, the 532nm focusing lens is arranged in the middle of the mirror bracket, and the bottom, the top and the side wall of the mirror bracket are respectively provided with a Z-axis rotating adjusting screw rod, an X-axis fine adjusting knob and a Y-axis fine adjusting knob which are used for adjusting the position of the 532nm focusing lens.
Furthermore, the focal length of the 532nm focusing lens is 10-100mm.
Furthermore, the diameter of the optical fiber core in the BH optical fiber connector is 10-200um.
The beneficial effects of the utility model reside in that:
the utility model relates to a 532nm free space light-fiber coupler of QBH interface is through being provided with adjustable beam expander group of divergent angle and ZYX triaxial adjusting mirror group entering optic fibre at laser output and QBH optic fibre in, free space 532nm laser is after adjustable beam expander group of divergent angle, and the light beam focusing gets into optic fibre to reach the purpose of free dimension processing through fiber transmission, make laser can be nimble transmission in the complex space, do not receive the space restriction. Meanwhile, the distribution quality of the transverse mode of the light beam can be improved by optical fiber coupling.
Drawings
Fig. 1 is a diagram of the optical path layout of a 532nm free-space optical-fiber coupler of a QBH interface according to the present invention;
fig. 2 is a schematic structural diagram of the 532nm free space optical-fiber coupler with QBH interface according to the present invention.
Reference numerals: 1-a divergence angle adjustable beam expanding lens group; 2-locking a spiral coil; 3-adjusting the screw rod; 4-XYZ three-axis adjusting lens group; 5-Z axis rotation adjusting screw; 6-QBH fiber connector; 7-X axis fine adjustment knob; 8-Y axis fine adjustment knob; 9-an input terminal; 10-an output end; 11-a box body; 12-a fixing bolt; 13-through hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
The utility model relates to a 532nm free space light of QBH interface-fiber coupler's schematic structure drawing as shown in fig. 1-2, the utility model relates to a 532nm free space light of QBH interface-fiber coupler, including setting up box 11 between laser output and optic fibre, be provided with adjustable beam expander group 1 of divergent angle and XYZ triaxial adjusting mirror group 4 in the box 11, 11 one end of box is provided with the input 9 of being connected with the laser output, the box 11 other end is connected with BH fiber connector 6, BH fiber connector 6's output 10 and fiber connection, adjustable beam expander group 1 of divergent angle is provided with 532nm anti-reflection coating film, XYZ triaxial adjusting mirror group 4 is provided with 532nm focusing lens.
In this embodiment, the adjustable beam expander set with the divergence angle and the three-axis ZYX adjusting lens set are arranged at the output end of the laser and the QBH fiber to enter the fiber, 532nm laser in free space is expanded through the adjustable divergence angle, light beams are focused to enter the fiber, the purpose of free dimension processing is achieved through fiber transmission, the laser can be flexibly transmitted in a complex space and is not limited by space, and meanwhile, the fiber coupling can improve the distribution quality of transverse modes of the light beams
In the embodiment, 532nm laser in free space is expanded by a divergence angle adjustable beam expanding lens group, the beam is focused by a ZYX three-axis adjusting lens group to enter an optical fiber, and the diameter of the optical fiber core is 10-200um; the end face of the optical fiber is positioned at the focal position of the focusing lens, the size of a light spot is adjusted by the beam expanding lens, and the position of the light spot is adjusted by the XTZ three-axis adjusting lens group.
In a preferred embodiment, the beam expansion multiple of the beam expander set 1 with the adjustable divergence angle is 1-4 times, and the structure of this embodiment is beneficial to adjusting the size of a light spot and improving the transmission efficiency of an optical fiber.
In a preferred embodiment, the adjustable divergence angle beam expander set 1 includes a mounting seat mounted in the box body through a fixing bolt 12 and a beam expander arranged on the mounting seat, the 532nm antireflection coating is arranged on the beam expander, and the mounting seat is provided with an adjusting screw 3 for adjusting the divergence angle of the beam expander and a locking screw 2 for locking the adjusting screw.
In a preferred embodiment, the XYZ three-axis adjusting mirror group 4 comprises a mirror frame fixed in a box 11, the 532nm focusing lens is arranged in the middle of the mirror frame, and the bottom, the top and the side walls of the mirror frame are respectively provided with a Z-axis rotation adjusting screw 5, an X-axis fine adjusting knob 7 and a Y-axis fine adjusting knob 8 for adjusting the position of the 532nm focusing lens, which is beneficial for the XTZ three-axis adjusting mirror group to adjust the position of the light spot.
In a preferred embodiment, the 532nm focusing lens has a focal length of 10-100mm, and the structure of the embodiment is favorable for the focusing lens to adjust the position of the light spot.
In a preferred embodiment, the diameter of the optical fiber core in the BH optical fiber connector 6 is 10 to 200um, and the optical fiber coupling in this embodiment improves the distribution quality of the transverse mode of the light beam.
The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a 532nm free space light-fiber coupler of QBH interface, is including setting up the box between laser output and optic fibre, its characterized in that: the divergence angle adjustable beam expander set is characterized in that a divergence angle adjustable beam expander set and an XYZ three-axis adjusting lens set are arranged in the box body, one end of the box body is provided with an input end connected with an output end of a laser, the other end of the box body is connected with a BH optical fiber connector, an output end of the BH optical fiber connector is connected with an optical fiber, the divergence angle adjustable beam expander set is provided with a 532nm antireflection coating, and the XYZ three-axis adjusting lens set is provided with a 532nm focusing lens.
2. The 532nm free-space optical-fiber coupler of QBH interface of claim 1, characterized in that: the divergence angle adjustable beam expander set has the beam expansion multiple of 1-4 times.
3. The 532nm free-space optical-fiber coupler of QBH interface of claim 1, characterized in that: the adjustable beam expander set with the divergence angle comprises a mounting seat and a beam expander, wherein the mounting seat is mounted in a box body through a fixing bolt, the beam expander is arranged on the mounting seat, the 532nm antireflection coating is arranged on the beam expander, and the mounting seat is provided with an adjusting screw rod for adjusting the divergence angle of the beam expander and a locking spiral ring for locking the adjusting screw rod.
4. The 532nm free-space optical-fiber coupler of QBH interface of claim 1, characterized in that: the XYZ three-axis adjusting mirror group comprises a mirror bracket fixed in a box body, the 532nm focusing lens is arranged in the middle of the mirror bracket, and a Z-axis rotation adjusting screw, an X-axis fine adjusting knob and a Y-axis fine adjusting knob which are used for adjusting the position of the 532nm focusing lens are arranged at the bottom, the top and the side wall of the mirror bracket respectively.
5. The 532nm free-space optical-fiber coupler of QBH interface of claim 1, characterized in that: the focal length of the 532nm focusing lens is 10-100mm.
6. The 532nm free-space optical-fiber coupler of QBH interface of claim 1, characterized in that: the diameter of an optical fiber core in the BH optical fiber connector is 10-200um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222934448.3U CN218547065U (en) | 2022-11-04 | 2022-11-04 | 532nm free space optical-fiber coupler with QBH interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222934448.3U CN218547065U (en) | 2022-11-04 | 2022-11-04 | 532nm free space optical-fiber coupler with QBH interface |
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| Publication Number | Publication Date |
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| CN218547065U true CN218547065U (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222934448.3U Active CN218547065U (en) | 2022-11-04 | 2022-11-04 | 532nm free space optical-fiber coupler with QBH interface |
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| CN (1) | CN218547065U (en) |
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- 2022-11-04 CN CN202222934448.3U patent/CN218547065U/en active Active
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