High stability reflection type laser collimation optical device

Abstract

This utility model discloses a high-stability reflective laser collimating optical device, belonging to the field of optical device technology. The laser collimating optical device includes a main body, a connector interlocking mechanism, a beam splitter, and a collimating lens assembly. The main body has an optical channel that passes through it, and a beam splitting port connected to the optical channel is provided on the main body. The connector interlocking mechanism is connected to the light inlet of the optical channel. The beam splitter is fixed at the beam splitting port of the optical channel. The collimating lens assembly is fixed in the optical channel. This utility model provides a method of adding a beam splitter before the collimating lens assembly. First, the beam splitter splits the sampled beam input from the target optical fiber to the collimating lens assembly, and splits the non-sampled beam input from the target optical fiber to outside the optical channel. Then, the collimating lens assembly collimates the sampled beam split onto it and outputs it as a collimated beam from the light outlet of the optical channel. This method can maintain the stability and pointing accuracy of the collimated beam during long-term propagation in free space under complex environments.

Description

Technical Field

[0001] This utility model relates to the field of optical device technology, and in particular to a highly stable reflective laser collimating optical device. Background Technology

[0002] With the rapid development of fiber optic technology, fiber optic collimation systems play a crucial role in fields such as laser processing, optical communication, precision measurement, and quantum technology. In a fiber optic collimator system, the primary function is to collimate the divergent light input from the target fiber into a collimated beam, ensuring its stability and pointing accuracy during free-space transmission. However, traditional fiber optic collimators suffer from insufficient thermal stability, poor mechanical stability, and poor long-term stability due to interference from unsampled beams (high-power light), thus failing to guarantee the stability and pointing accuracy of the collimated beam during free-space transmission. Utility Model Content

[0003] The purpose of this invention is to provide a highly stable reflective laser collimating optical device that can maintain the stability and pointing accuracy of the collimated beam during free space transmission in complex environments over a long period of time, in response to the existing technological status quo.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A highly stable reflective laser collimating optical device includes a main body, a connector interlocking mechanism, a beam splitter, and a collimating lens assembly; The main body is provided with an optical channel that passes through it, and the main body is provided with a beam splitter that communicates with the optical channel; The connector interlocking mechanism is connected to the optical inlet of the optical channel and is used to connect the target optical fiber to the main body. The beam splitter is fixed at the beam splitter port of the optical channel and is used to split the sampled beam input from the target fiber into the collimating lens group, and to split the non-sampled beam input from the target fiber into the outside of the optical channel; The collimating lens assembly is fixed in the optical channel and is used to collimate the sampled beam that has been split onto it and output it as a collimated beam from the light outlet of the optical channel.

[0005] Furthermore, an adjustment mechanism is provided at the light inlet of the optical channel, and the connector interlock mechanism is connected to the adjustment mechanism.

[0006] Furthermore, the adjustment mechanism includes a mounting base, a mounting cover, and an adjustment ring, and both the mounting base and the mounting cover are provided with light-transmitting holes; The mounting base is fixed on the main body, and the light-transmitting hole on it corresponds to the light inlet of the light channel. The mounting base has a first mounting groove on the side away from the main body. The adjusting ring is disposed in the first mounting groove, and the adjusting ring can rotate within the first mounting groove; The mounting cover is fixed on the mounting base, and the light-transmitting hole on it corresponds to the light inlet of the light channel. The mounting cover is provided with a first locking pin, and the first locking pin presses against the adjusting ring set in the first mounting groove. The connector interlocking mechanism passes through the light-transmitting hole on the mounting cover and is connected to the adjusting ring.

[0007] Furthermore, each of the left and right sides of the mounting base is provided with a second locking pin that penetrates into the first mounting groove thereon, and both second locking pins abut against the adjusting ring.

[0008] Furthermore, the main body is provided with a positioning groove adapted to the mounting base, and the mounting base is embedded in the positioning groove.

[0009] Furthermore, a first sealing ring is embedded in the bottom surface of the first mounting groove, and a second sealing ring is embedded in the side of the mounting cover near the mounting base, with the second sealing ring corresponding to the position of the adjusting ring.

[0010] Furthermore, it also includes a lens mount, on which the collimating lens assembly is encapsulated and fixed. The main body is provided with a second mounting groove that communicates with the optical channel thereon. The lens mount is inserted into the second mounting groove, and the collimating lens assembly corresponds to the position of the optical channel.

[0011] Furthermore, the main body is provided with two positioning pins, and the mirror base is provided with two positioning pin holes adapted to the positioning pins, with the two positioning pins respectively inserted into the two positioning pin holes.

[0012] Furthermore, the beam splitter is fixed to the outer wall of the main body.

[0013] The beneficial effects of this utility model are as follows: 1. This utility model provides a highly stable reflective laser collimating optical device. A beam splitter is added before the collimating lens group. First, the sampled beam input from the target fiber is split into the collimating lens group based on the beam splitter, and the non-sampled beam input from the target fiber is split outside the optical channel. Then, the sampled beam split onto the collimating lens group is collimated and output as a collimated beam from the output port of the optical channel. According to the above design, this laser collimating optical device can maintain the stability and directional accuracy of the collimated beam during free space transmission in complex environments for a long time. It also features a compact structure and ease of integration, thus meeting the stringent requirements of optical systems for the stability of the collimated optical path. 2. This utility model provides a highly stable reflective laser collimating optical device. The connector interlocking mechanism is connected to the main body through an adjustment mechanism. The position of the connector interlocking mechanism relative to the optical channel is adjusted based on the adjustment mechanism, thereby adjusting the position of the target optical fiber relative to the optical channel to compensate for structural deviations. Attached Figure Description

[0014] Figure 1 This is a perspective view of a highly stable reflective laser collimating optical device according to the present invention; Figure 2 This is a cross-sectional view of a highly stable reflective laser collimating optical device according to the present invention; Figure 3 This is a perspective view of the main support in a high-stability reflective laser collimating optical device according to this utility model; Figure 4 This is a perspective view of the adjustment mechanism in a high-stability reflective laser collimating optical device according to this utility model; Figure 5 This is a cross-sectional view of the adjustment mechanism in a high-stability reflective laser collimating optical device of this utility model; Figure 6 This is a schematic diagram of the structure of the adjustment mechanism without a mounting cover connected to the main body in a high-stability reflective laser collimating optical device of this utility model; Figure 7 This is a perspective view of the mounting base in a high-stability reflective laser collimating optical device according to this utility model; Figure 8 This is a perspective view of the adjustment component in a high-stability reflective laser collimating optical device according to this utility model; Figure 9 This is a perspective view of the mounting cover in a high-stability reflective laser collimating optical device according to this utility model; Figure 10 This is a perspective view of the mirror mount in a high-stability reflective laser collimating optical device according to this utility model.

[0015] Labeling instructions: 1. Main body base, 101. Optical channel, 102. Beam splitter port, 103. Positioning slot, 104. Second mounting slot, 2. Lens mount, 201. Positioning pin hole, 3. Collimating optical path, 4. Adjustment mechanism, 5. Connector interlocking mechanism, 6. Target optical fiber, 7. Beam splitter, 8. Collimating lens group, 9. Positioning pin, 10. Mounting base, 1001. First mounting slot, 11. Adjustment ring, 12. Mounting cover, 13. First locking pin, 14. First sealing ring, 15. Second sealing ring, 16. Second locking pin. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Example 1: Please see Figures 1-3 As shown in Figures 1 and 10, a highly stable reflective laser collimating optical device includes a main body 1, a connector interlocking mechanism 5, a beam splitter 7, and a collimating lens group 8.

[0018] The main body 1 has an optical channel 101 that passes through it, and the optical channel 101 has an inlet and an outlet. The main body 1 has a beam splitter 102 that communicates with the optical channel 101, and the optical channel 101 also has a beam splitter 102.

[0019] The connector interlock mechanism 5 is connected to the light inlet of the optical channel 101 and is used to connect the target optical fiber 6 to the main body base 1.

[0020] Beam splitter 7 is fixed at beam splitter port 102 of optical channel 101. It is used to split the sampled beam input from target fiber 6 to collimating lens group 8, and to split the non-sampled beam input from target fiber 6 outside optical channel 101. After the non-sampled beam input from target fiber 6 is split outside optical channel 101, it undergoes absorption processing or other processing.

[0021] In this embodiment, for example, the beam splitter 7 is fixed on the outer wall of the main body 1.

[0022] The collimating lens group 8 is fixed in the optical channel 101 and is used to collimate the sampled beam that has been split onto it and output it as a collimated beam from the light outlet of the optical channel 101.

[0023] In this embodiment, by way of example, it also includes a lens mount 2, a collimating lens group 8 is encapsulated and fixed on the lens mount 2, and a second mounting groove 104 is provided on the main body 1, which is connected to the optical channel 101 provided thereon. The lens mount 2 is inserted into the second mounting groove 104, and the collimating lens group 8 corresponds to the position of the optical channel 101.

[0024] Preferably, the main body 1 is provided with two positioning pins 9, and the lens base 2 is provided with two positioning pin holes 201 adapted to the positioning pins 9. The two positioning pins 9 are respectively inserted into the two positioning pin holes 201, so that the collimating lens group 8 can be assembled into the optical channel 101 more accurately and quickly.

[0025] In summary, this invention adds a beam splitter 7 before the collimating lens group 8. First, the sampling beam (low-power light) input from the target fiber 6 is split into the collimating lens group 8 based on the beam splitter 7, and the non-sampling beam (high-power light) input from the target fiber 6 is split into the outside of the optical channel 101. Then, the sampling beam split into it is collimated based on the collimating lens group 8 and output as a collimated beam from the light outlet 102 of the optical channel 101. It can maintain the stability and directional accuracy of the collimated beam during free space transmission in complex environments for a long time. At the same time, it has the characteristics of compact structure and easy integration, so as to meet the stringent requirements of the optical system for the stability of the collimated optical path 3.

[0026] Example 2: Please see Figures 1-10 As shown, based on Embodiment 1, an adjustment mechanism 4 is provided at the light inlet of the optical channel 101, and the connector interlock mechanism 5 is connected to the adjustment mechanism 4.

[0027] In one embodiment, the adjustment mechanism 4 includes a mounting base 10, a mounting cover 12, and an adjustment ring 11. Both the mounting base 10 and the mounting cover 12 have light-transmitting holes. The mounting base 10 is fixed on the main body base 1, and the light-transmitting hole provided on it corresponds to the light-inlet position of the light channel 101. The mounting base 10 has a first mounting groove 1001 on the side away from the main body base 1. The adjusting ring 11 is disposed in the first mounting groove 1001, and the adjusting ring 11 can rotate within the first mounting groove 1001; The mounting cover 12 is fixed on the mounting base 1, and the light-transmitting hole on it corresponds to the light inlet of the light channel 101. The mounting cover 12 is provided with a first locking pin 13 (the first locking pin 13 is threadedly connected to the mounting cover 12), and the first locking pin 13 presses against the adjusting ring 11 set in the first mounting groove 1001. The connector interlocking mechanism 5 passes through the light-transmitting hole on the mounting cover 12 and is connected to the adjusting ring 11.

[0028] Preferably, the main body 1 is provided with a positioning groove 103 adapted to the mounting base 10, and the mounting base 10 is embedded in the positioning groove 103, so that the mounting base 10 can be assembled onto the main body 1 more accurately and quickly.

[0029] According to the above design, after the first locking pin 13 is released, the connector interlocking mechanism 5 can rotate relative to the optical channel 101, that is, the target optical fiber 6 can rotate relative to the optical channel 101. After the adjustment is completed, the first locking pin 13 continues to press against the adjusting ring 11 set in the first mounting groove 1001.

[0030] In another embodiment, each of the left and right sides of the mounting base 1 is provided with a second locking pin 16 that passes through the first mounting groove 1001 provided thereon (the first locking pin 16 is threadedly connected to the mounting base 10), and both second locking pins 16 abut against the adjusting ring 11.

[0031] According to the above design, after the second locking pin 16 is adjusted to the left or right simultaneously, the connector interlocking mechanism 5 can move to the left or right relative to the optical channel 101, that is, the target optical fiber 6 can move to the left or right relative to the optical channel 101.

[0032] Furthermore, a first sealing ring 14 is embedded in the bottom surface of the first mounting groove 1001, and a second sealing ring 15 is embedded in the side of the mounting cover 12 near the mounting base 1, with the second sealing ring 15 corresponding to the position of the adjusting ring 11. The first sealing ring 14 and the second sealing ring 15 can effectively prevent dust and other harmful substances from entering the optical channel 101.

[0033] In summary, this utility model connects the connector interlock mechanism 5 to the main body 1 through the adjustment mechanism 4. Based on the adjustment mechanism 4, the position of the connector interlock mechanism 5 relative to the optical channel 101 is adjusted, thereby adjusting the position of the target optical fiber 6 relative to the optical channel 101 to compensate for structural deviations.

[0034] Of course, the above are only preferred embodiments of this utility model and are not intended to limit the scope of application of this utility model. Therefore, any equivalent changes made to the principle of this utility model should be included within the protection scope of this utility model.

Claims

1. A highly stable reflective laser collimating optical device, characterized in that: Includes the main body, connector interlocking mechanism, beam splitter and collimating lens assembly; The main body is provided with an optical channel that passes through it, and the main body is provided with a beam splitter that communicates with the optical channel; The connector interlocking mechanism is connected to the optical inlet of the optical channel and is used to connect the target optical fiber to the main body. The beam splitter is fixed at the beam splitter port of the optical channel and is used to split the sampled beam input from the target fiber into the collimating lens group, and to split the non-sampled beam input from the target fiber into the outside of the optical channel; The collimating lens assembly is fixed in the optical channel and is used to collimate the sampled beam that has been split onto it and output it as a collimated beam from the light outlet of the optical channel.

2. The high-stability reflective laser collimating optical device according to claim 1, characterized in that: An adjustment mechanism is provided at the light inlet of the optical channel, and the connector interlock mechanism is connected to the adjustment mechanism.

3. The high-stability reflective laser collimating optical device according to claim 2, characterized in that: The adjustment mechanism includes a mounting base, a mounting cover, and an adjustment ring, and both the mounting base and the mounting cover are provided with light-transmitting holes; The mounting base is fixed on the main body, and the light-transmitting hole on it corresponds to the light inlet of the light channel. The mounting base has a first mounting groove on the side away from the main body. The adjusting ring is disposed in the first mounting groove, and the adjusting ring can rotate within the first mounting groove; The mounting cover is fixed on the mounting base, and the light-transmitting hole on it corresponds to the light inlet of the light channel. The mounting cover is provided with a first locking pin, and the first locking pin presses against the adjusting ring set in the first mounting groove. The connector interlocking mechanism passes through the light-transmitting hole on the mounting cover and is connected to the adjusting ring.

4. The high-stability reflective laser collimating optical device according to claim 3, characterized in that: The mounting base has a second locking pin on each of its left and right sides that passes through the first mounting groove thereon, and both second locking pins abut against the adjusting ring.

5. The high-stability reflective laser collimating optical device according to claim 3, characterized in that: The main body is provided with a positioning groove that is adapted to the mounting base, and the mounting base is embedded in the positioning groove.

6. The high-stability reflective laser collimating optical device according to claim 3, characterized in that: A first sealing ring is embedded in the bottom surface of the first mounting groove, and a second sealing ring is embedded in the side of the mounting cover near the mounting base, with the second sealing ring corresponding to the position of the adjusting ring.

7. The high-stability reflective laser collimating optical device according to claim 1, characterized in that: It also includes a lens mount, the collimating lens assembly is encapsulated and fixed on the lens mount, the main body is provided with a second mounting groove communicating with the optical channel thereon, the lens mount is inserted into the second mounting groove, and the collimating lens assembly corresponds to the position of the optical channel.

8. The high-stability reflective laser collimating optical device according to claim 7, characterized in that: The main body is provided with two positioning pins, and the mirror base is provided with two positioning pin holes adapted to the positioning pins. The two positioning pins are respectively inserted into the two positioning pin holes.

9. The high-stability reflective laser collimating optical device according to claim 1, characterized in that: The beam splitter is fixed to the outer wall of the main body.

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