An optical wavelength division demultiplexer device that facilitates flexible adjustment of the angle of incident light

Abstract

The application relates to the technical field of optical communication, in particular to an optical wavelength division demultiplexer capable of flexibly adjusting the angle of incident light rays, which comprises a machine box, a reflecting block, a demultiplexer block, a folding prism and a focusing lens are arranged in the machine box, an incident channel is arranged at the top of the machine box, the incident channel is in communication with the inside of the machine box, the incident channel corresponds to the reflecting block, the demultiplexer block comprises an optical block and a light filter, the reflecting block is slidably arranged in the machine box in the horizontal direction, one side of the reflecting block receiving incident light is provided with a reflecting plate, the reflecting plate is rotatably arranged on the reflecting block, and a limiting component for improving the stability of the reflecting plate is additionally arranged in the machine box. The application aims to strengthen the stability of the reflecting plate of the multiplexer during the adjustment of the angle of incident light rays, thereby effectively ensuring that the signals of the light rays will not be interfered and lost during the reflection process.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of optical communication, in particular to an optical wavelength division demultiplexing device facilitating flexible adjustment of the angle of incident light. BACKGROUND

[0002] A wavelength division multiplexing / demultiplexing device is a core equipment for separating multi-wavelength optical signals in an optical fiber communication system, and its core function is to separate the mixed multi-wavelength optical signals in a transmission optical fiber one by one according to different wavelengths and restore them into independent single-wavelength optical signals for subsequent processing. In a wavelength division multiplexing system, a multiplexer is used at the sending end to combine and transmit optical signals of different wavelengths, and a demultiplexer is used at the receiving end to perform reverse operation.

[0003] In the related art, different wavelengths of optical signals are physically separated by internal optical elements (such as thin film filters, diffraction gratings or arrayed waveguide gratings), and the separated wavelength signals remain independent and do not interfere with each other, ensuring complete recovery of the original information.

[0004] In a wavelength division multiplexing / demultiplexing device, adjusting the incident angle of light plays a key role in device performance. A planar waveguide grating and other demultiplexing structures rely on the diffraction effect of light to separate wavelengths. If the incident angle deviates from the design value, different wavelength signals will overlap at the output end, causing inter-channel crosstalk, which in turn leads to a decrease in adjacent channel isolation and an increase in bit error rate.

[0005] The conventional components for adjusting the incident angle of light are currently insufficient in stability during the adjustment of the incident angle of light, which makes the reflecting plate prone to polarization during the incidence of light, causing the incident angle of light to deviate, and thus the target wavelength signal cannot be accurately coupled to the corresponding output port, resulting in channel crosstalk or signal loss. SUMMARY

[0006] The application provides an optical wavelength division demultiplexing device facilitating flexible adjustment of the angle of incident light, which aims to enhance the stability of the multiplexer reflecting plate during the adjustment of the incident angle of light, effectively prevent the phenomenon of angle deviation of light during incidence, and thus enable the target wavelength signal to be accurately and correctly coupled to the corresponding output port, thereby effectively ensuring that the signal will not have crosstalk and loss.

[0007] The application provides an optical wavelength division demultiplexing device facilitating flexible adjustment of the angle of incident light, which adopts the following technical solution:

[0008] The application discloses an optical wavelength division multiplexing device which is convenient to adjust the angle of incident light rays, and comprises a box, a reflecting block, a demultiplexer block, a folding prism and a focusing lens which are arranged in the box, and an incident channel which is arranged on the top of the box and is in communication with the box and corresponds to the reflecting block.

[0009] The demultiplexer block comprises an optical block and an optical filter, the reflecting block is slidably arranged in the box in the horizontal direction, one side of the reflecting block which receives the incident light is provided with a reflecting plate, the reflecting plate is rotatably arranged on the reflecting block, and a limiting component for improving the stability of the reflecting plate is additionally arranged in the box.

[0010] By adopting the technical scheme, the light waves are incident on one side of the reflecting block through the incident channel, the reflecting block reflects the light waves to the demultiplexer block at a certain angle, the demultiplexer block receives the incident light and separates the incident light into multiple wavelengths. The folding prism and the demultiplexer block are arranged on the left and right sides of the box, the folding prism receives the multiple wavelengths from the demultiplexer block and refracts the wavelengths. The focusing lens is arranged on the side of the folding prism which is far away from the demultiplexer block, and is used for receiving the multiple wavelengths refracted from the folding prism and focusing the wavelengths.

[0011] The reflecting block is slidably arranged in the box in the horizontal direction, the position of the reflecting block in the box is adjusted by sliding, and then the reflection angle of the incident light is adaptively adjusted. Meanwhile, the rotation of the reflecting plate further enhances the flexibility of the adjustment of the reflection angle of the incident light, and then the wavelength separation precision, the coupling efficiency and the environmental adaptability can be effectively ensured. By dynamically adjusting the incident angle, the optical wavelength division multiplexing device can be maintained in the best working state. When the reflecting plate is adjusted to a preset angle, the reflecting plate is stably positioned by the limiting component, and then the phenomenon that the reflection angle of the incident light is polarized due to the deviation and shaking of the reflecting plate during the reflection of the incident light can be effectively prevented, and then the target wavelength signal can be accurately and correctly coupled to the corresponding output port, and then the phenomenon that the signal is cross-talked and lost can be effectively prevented.

[0012] Preferably, the bottom of the reflecting block is integrally connected with a moving seat, a first lead screw is arranged in the horizontal direction through the moving seat, a micro motor is fixed to the side wall of the box, the first lead screw is connected with the driving end of the micro motor, and the moving seat is threadedly sleeved on the first lead screw.

[0013] By adopting the technical scheme, when the reflecting block specifically slides, the micro motor drives the first screw rod to rotate, the first screw rod drives the moving seat to slide along the length direction of the screw rod in the rotating process, and then the moving seat synchronously drives the reflecting block to slide in the machine box, the angle of the incident light reflected on the reflecting block can be adaptively adjusted along with the sliding of the reflecting block, and then the effect of dynamically adjusting the incident angle of the incident light is realized.

[0014] Preferably, one side of the reflecting block is provided with a hinge shaft in the horizontal direction, the reflecting plate is sleeved on the hinge shaft, a first push rod is additionally provided between the reflecting block and the position close to the top of the reflecting plate in the horizontal sliding direction, the outer side of the reflecting block is provided with a first gear, the bottom of the first push rod is provided with a second gear, the first push rod and the second gear are connected in meshing, and the first gear and the second gear are connected through a corresponding rotating shaft.

[0015] By adopting the technical scheme, the first push rod drives the position close to the top of the reflecting plate to rotate in the process of sliding forward and backward, and then the inclination angle of the reflecting plate is adjusted. Along with the rotation of the reflecting plate, the angle of the incident light reflected on the reflecting block can be adaptively adjusted. Specifically, when the reflection angle of the reflecting plate is adjusted, the first gear is rotated to drive the second gear to rotate, the first push rod is synchronously driven to slide in the horizontal direction through the meshing of the second gear and the first push rod, and then the first push rod drives the position close to the top of the reflecting plate to rotate in the process of sliding forward and backward to realize the adjustment of the inclination angle of the reflecting plate.

[0016] Preferably, a sliding rail is formed in the reflecting block in the horizontal direction, the first push rod is located in the sliding rail, a sliding groove is formed in the top inner wall of the sliding rail along the length direction of the sliding rail, a sliding block is integrally connected to the top of the first push rod, the sliding block is slidingly installed in the sliding groove, and the sliding block and the sliding groove are both in a "T" shape structure.

[0017] By adopting the technical scheme, in the process of sliding forward and backward of the first push rod, the sliding block slides in the sliding groove, the sliding of the first push rod is stably guided through the sliding block and the sliding groove, and then the stability of the first push rod in the sliding process is beneficially ensured.

[0018] Specifically, when the reflecting plate is positioned, the side wall of the second plate body and one side of the reflecting plate are kept close. Since the reflecting plate is in an inclined state, the second plate body is inclined to be arranged, so that when the reflecting plate is positioned, the second plate body can be more closely attached to the side wall of the reflecting plate, and then the stability effect of the baffle on the positioning of the reflecting plate is improved.

[0019] Preferably, the second plate body is connected to one end of the first plate body by a torsional spring, and a second push rod is arranged between the first plate body and the second plate body away from the one end of the first plate body in the vertical direction, the second push rod is slidably arranged between the first plate body and the second plate body in the vertical direction, the second push rod is in abutment with the second plate body away from the first plate body, and an air cylinder is fixed to the top of the first plate body in the vertical direction, the second push rod is vertically inserted into the air cylinder, and the air cylinder is filled with compressed air.

[0020] By adopting the above technical scheme, when the reflecting plate rotates clockwise, the included angle between the second plate body and the first plate body increases, and the second push rod is elongated; when the reflecting plate rotates counterclockwise, the included angle between the second plate body and the first plate body decreases, and the second push rod is retracted. The second push rod is realized by the compressed air in the air cylinder, so that the second plate body can always be in parallel abutment with the reflecting plate during the rotation of the reflecting plate, so that the second plate body can be more closely attached to the side wall of the reflecting plate, thereby helping to improve the stability of the limiting effect of the baffle on the reflecting plate.

[0021] Preferably, the bottom of the reflecting plate is integrally connected with an extension plate in the vertical direction, the limiting assembly further comprises a clamping piece, the clamping piece is arranged at the end of the extension plate away from the reflecting plate, and the clamping piece clamps and positions the extension plate.

[0022] The bottom of the reflecting plate and the extension plate are integrally connected with an adapter rod in the horizontal direction, the moving seat is provided with a first waist-shaped hole on the side close to the clamping piece, the first waist-shaped hole is in a curved arc shape, the adapter rod penetrates through the first waist-shaped hole, a second waist-shaped hole is vertically and penetratingly arranged on the extension plate, and the end of the adapter rod close to the extension plate extends into the second waist-shaped hole.

[0023] By adopting the above technical scheme, the clamping of the clamping piece on the extension plate can strengthen the positioning of the reflecting plate, thereby further effectively improving the stability of the reflecting plate as a whole, and thereby effectively preventing the phenomenon that the reflection angle of the incident light is polarized due to the offset and shaking of the reflecting plate during the reflection of the incident light.

[0024] With the rotation of the reflecting plate, the movement track of the reflecting plate is arc-shaped, and the extension plate needs to always maintain a vertical state, and its movement track is horizontal. The adapter rod effectively avoids the movement interference between the reflecting plate and the extension plate during the movement, and the end of the adapter rod in the second waist-shaped hole moves in the vertical direction relative to the extension plate during the movement of the adapter rod in the first waist-shaped hole, thereby effectively ensuring the stability of the reflecting plate and the extension plate during the movement.

[0025] Preferably, the clamping member comprises a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are arranged at the left and right ends of the extension plate and are arranged to slide towards each other or away from each other.

[0026] By adopting the above technical scheme, when the reflection angle of the reflection plate is adjusted, the first clamping plate and the second clamping plate slide towards each other until the first clamping plate and the second clamping plate clamp and position the extension plate.

[0027] Preferably, the side of the moving seat close to the clamping member is provided with a second lead screw in the horizontal direction, the second lead screw is driven by a micro motor, the first clamping plate and the second clamping plate are sleeved on the second lead screw, a threaded hole is formed through the second clamping plate, the second clamping plate and the second lead screw are threadedly connected, the side of the first clamping plate close to the extension plate is connected with the extension plate, an auxiliary spring is sleeved on the second lead screw, and the side of the first clamping plate away from the extension plate is connected with the auxiliary spring.

[0028] By adopting the above technical scheme, in specific use, the extension plate slides in the horizontal direction under the driving of the adapter rod, and simultaneously drives the first clamping plate to slide, and the side of the extension plate always keeps close to the first clamping plate. When the reflection angle of the reflection plate is adjusted, the extension plate remains stationary. At this time, the micro motor is started to drive the second lead screw to rotate, the second lead screw drives the second clamping plate to slide towards the extension plate in the rotating process, until the first clamping plate and the second clamping plate clamp and position the extension plate. The auxiliary spring provides a resisting force to the extension plate to the first clamping plate in the sliding process, and then the clamping and positioning of the extension plate are completed by the first clamping plate and the second clamping plate, so as to effectively guarantee the stability of the reflection plate in the light incidence process.

[0029] In summary, the present application has at least one of the following beneficial technical effects:

[0030] 1. The light wave is incident on the side of the reflection block from the incident channel, the reflection block reflects the light wave to the demultiplexer block at a certain angle, the demultiplexer block receives the incident light and decomposes the incident light into multiple wavelengths. The folding prism and the demultiplexer block are distributed on the left and right sides of the machine box, the folding prism receives multiple wavelengths from the demultiplexer block and refracts these wavelengths. The focusing lens is located on the side of the folding prism away from the demultiplexer block, and is used to receive multiple wavelengths refracted from the folding prism and focus these wavelengths.

[0031] The reflection block is installed in the machine box in a sliding manner in the horizontal direction, and the position of the reflection block in the machine box is adjusted through sliding, and then the reflection angle of the incident light is adaptively adjusted. At the same time, the rotation of the reflection plate further enhances the flexibility of the adjustment of the reflection angle of the incident light, and then the wavelength separation precision, the coupling efficiency and the environmental adaptability can be effectively guaranteed. Through dynamic adjustment of the incident angle, the optical wave division multiplexing device is maintained in the best working state. When the reflection plate is adjusted to the preset angle, the reflection plate is stably positioned by using the limiting assembly, and then the phenomenon that the reflection angle of the incident light is polarized due to the offset and shaking of the reflection plate during the reflection of the incident light can be effectively prevented, and then the target wavelength signal can be accurately and correctly coupled to the corresponding output port, and then the phenomenon that the signal is not disturbed and lost can be effectively ensured.

[0032] 2. The positioning of the reflection plate is further enhanced by clamping the extension plate with the clamping member, and then the stability of the whole reflection plate is further improved, and then the phenomenon that the reflection angle of the incident light is polarized due to the offset and shaking of the reflection plate during the reflection of the incident light can be effectively prevented.

[0033] With the rotation of the reflection plate, the movement track of the reflection plate is arc-shaped, and the extension plate needs to always maintain a vertical state, and the movement track of the extension plate is horizontal. The adapter rod is used to effectively avoid the movement interference of the reflection plate and the extension plate during the movement, and one end of the adapter rod in the second waist-shaped hole moves relative to the extension plate in the vertical direction during the movement of the adapter rod in the first waist-shaped hole, and then the stability of the reflection plate and the extension plate during the movement can be effectively guaranteed by using the adapter rod.

[0034] 3. The extension plate is driven by the adapter rod to slide in the horizontal direction, and the first clamping plate is simultaneously driven to slide, and one side of the extension plate always maintains close contact with the first clamping plate. When the reflection angle adjustment of the reflection plate is completed, the extension plate remains stationary. At this time, the micro motor is started to drive the second screw to rotate, and the second screw drives the second clamping plate to slide towards the extension plate during the rotation, and the extension plate is clamped and positioned by the first clamping plate and the second clamping plate. The first clamping plate provides a resisting force to the extension plate through the auxiliary spring during the sliding process of the first clamping plate, and then the clamping and positioning of the extension plate are completed by using the first clamping plate and the second clamping plate, so as to effectively guarantee the stability of the reflection plate during the light incidence. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a structural schematic diagram of the whole embodiment of the present application;

[0036] Figure 2 is a structural schematic diagram of the position relationship of the reflection plate, the hinge shaft and the first gear;

[0037] Figure 3is a structural schematic view of the position relationship of the first gear, the second gear, the first push rod, the first plate body, the second plate body, the second push rod and the air cylinder specifically shown by the embodiment of the present application.

[0038] Figure 4 is a structural schematic view of the position relationship of the slide rail, the slide groove and the sliding block specifically shown by the embodiment of the present application.

[0039] Figure 5 is a structural schematic view of the position relationship of the extension plate, the first waist-shaped hole, the second waist-shaped hole and the adapter rod specifically shown by the embodiment of the present application.

[0040] Figure 6 is a structural schematic view of the position relationship of the first clamping plate, the second clamping plate, the second screw rod and the auxiliary spring specifically shown by the embodiment of the present application.

[0041] Reference signs: 1, machine box; 2, reflecting block; 3, demultiplexer block; 31, optical block; 32, optical filter; 4, folding prism; 5, focusing lens; 6, incident channel; 7, reflecting plate; 8, moving seat; 9, first screw rod; 10, micro motor; 11, hinged shaft; 12, first push rod; 13, first gear; 14, second gear; 15, slide rail; 16, slide groove; 17, sliding block; 18, baffle; 181, first plate body; 182, second plate body; 19, second push rod; 20, air cylinder; 21, extension plate; 22, clamping piece; 221, first clamping plate; 222, second clamping plate; 23, adapter rod; 24, first waist-shaped hole; 25, second waist-shaped hole; 26, second screw rod; 27, auxiliary spring. DETAILED DESCRIPTION

[0042] The following will be described in detail Figures 1-6 , the present application is further described.

[0043] Embodiment:

[0044] The embodiment of the present application discloses an optical wave demultiplexer device facilitating flexible adjustment of incident light angle, referring to Figure 1 and Figure 2 , comprising a machine box 1, the machine box 1 is in the shape of a cuboid as a whole, the machine box 1 is hollow inside, and the inside is provided with a reflecting block 2, a demultiplexer block 3, a folding prism 4 and a focusing lens 5. The top of the machine box 1 is integrally connected with an incident channel 6, the incident channel 6 and the inside of the machine box 1 keep communication, and the incident channel 6 corresponds to the reflecting block 2 in the inside of the machine box 1.

[0045] The light wave is incident on one side of the reflecting block 2 through the incident channel 6, the reflecting block 2 reflects the light wave to the demultiplexer block 3 at a certain angle, the demultiplexer block 3 receives the incident light and decomposes the incident light into multiple wavelengths. The folding prism 4 and the demultiplexer block 3 are distributed on the left and right sides of the machine box 1, the folding prism 4 receives the multiple wavelengths from the demultiplexer block 3 and refracts the wavelengths. The focusing lens 5 is located on the side of the folding prism 4 away from the demultiplexer block 3, which is used to receive the multiple wavelengths refracted from the folding prism 4 and focus the wavelengths.

[0046] Referring to Figure 1 , the demultiplexer block 3 includes an optical block 31 and a filter 32, the reflecting plate 7 reflects the incident light to the optical block 31, and the optical block 31 continues to reflect the incident light to the filter 32 for filtering.

[0047] Referring to Figure 1 and Figure 2 , the reflecting block 2 is slidingly installed in the machine box 1 in the horizontal direction, and the position of the reflecting block 2 in the machine box 1 is adjusted by sliding, thereby adaptively adjusting the reflection angle of the incident light. At the same time, the side of the reflecting block 2 receiving the incident light is provided with a reflecting plate 7, the reflecting plate 7 is rotatably installed on the reflecting block 2, and the rotation of the reflecting plate 7 further enhances the flexibility of adjusting the reflection angle of the incident light, thereby effectively ensuring the wavelength separation precision, coupling efficiency and environmental adaptability. By dynamically adjusting the incident angle, the optical wave decomposition and multiplexing device is maintained in the best working state.

[0048] At the same time, the machine box 1 is additionally provided with a limiting component for effectively improving the stability of the reflecting plate 7, when the reflecting plate 7 is adjusted to a preset angle, the reflecting plate 7 is stably positioned by the limiting component, thereby effectively preventing the phenomenon that the reflection angle of the incident light is polarized due to the offset and shaking of the reflecting plate 7 during the reflection of the incident light, thereby enabling the target wavelength signal to be accurately and correctly coupled to the corresponding output port, thereby effectively ensuring that the signal will not appear cross talk and loss phenomenon.

[0049] Specifically, referring to Figure 1 and Figure 2 , the bottom of the reflecting block 2 is integrally connected with a moving seat 8, a first lead screw 9 penetrates through the moving seat 8 in the horizontal direction, and a micro motor 10 is fixed outside the machine box 1, the driving end of the first lead screw 9 and the micro motor 10 is connected, and the moving seat 8 is threadedly sleeved on the first lead screw 9.

[0050] When the reflecting block 2 specifically slides, the first screw rod 9 is driven to rotate by the micro motor 10, the first screw rod 9 drives the moving seat 8 to slide along the length direction of the screw rod in the rotating process, and then the moving seat 8 synchronously drives the reflecting block 2 to slide in the machine box 1, and the angle of the incident light reflected on the reflecting block 2 can be adaptively adjusted with the sliding of the reflecting block 2, thereby achieving the effect of dynamically adjusting the incident angle of the incident light.

[0051] Specifically, referring to Figure 1 , Figure 2 and Figure 3 , the reflecting block 2 is provided with a hinge shaft 11 on one side in the horizontal direction, and the reflecting plate 7 is sleeved on the hinge shaft 11 at the middle position. The first push rod 12 is additionally provided between the reflecting block 2 and the reflecting plate 7 near the top position in the horizontal direction, the first push rod 12 drives the reflecting plate 7 near the top position to rotate in the process of sliding forward and backward, thereby adjusting the inclination angle of the reflecting plate 7, and the angle of the incident light reflected on the reflecting block 2 can be adaptively adjusted with the rotation of the reflecting plate 7.

[0052] Specifically, referring to Figure 1 , Figure 2 and Figure 3 , the first gear 13 is installed on the outside of the reflecting block 2, the second gear 14 is installed on the bottom of the first push rod 12, one side of the first push rod 12 and the second gear 14 is provided with teeth, and the first push rod 12 and the second gear 14 are engaged.

[0053] Specifically, when the reflecting angle of the reflecting plate 7 is adjusted, the first gear 13 is rotated to drive the second gear 14 to rotate, the first push rod 12 is synchronously driven to slide in the horizontal direction by the meshing of the second gear 14 and the first push rod 12, and then the first push rod 12 drives the reflecting plate 7 near the top position to rotate in the process of sliding forward and backward to adjust the inclination angle of the reflecting plate 7.

[0054] The upper top cover of the machine box 1 can be disassembled, when the reflecting angle of the reflecting plate 7 needs to be adjusted, the upper top cover of the machine box 1 is disassembled to adjust the reflecting angle of the reflecting plate 7, and then the upper top cover is reassembled on the machine box 1 after the reflecting angle is adjusted to the preset angle.

[0055] Further, referring to Figure 1 , Figure 3 and Figure 4The sliding rail 15 is provided in the horizontal direction in the reflecting block 2, and the first push rod 12 is located in the sliding rail 15. The top inner wall of the sliding rail 15 is provided with a sliding groove 16 in the length direction, and the top of the first push rod 12 is integrally connected with a sliding block 17, which is slidingly installed in the sliding groove 16. The sliding block 17 and the sliding groove 16 are both in the shape of a “T”. During the forward and backward sliding of the first push rod 12, the sliding block 17 slides in the sliding groove 16, and the sliding block 17 and the sliding groove 16 are used to stably guide the sliding of the first push rod 12, thereby being beneficial to the stability of the first push rod 12 during the sliding.

[0056] Specifically, referring to Figure 1 、 Figure 3 and Figure 4 , the limiting assembly includes a baffle 18, which is installed on the side of the reflecting plate 7 away from the first push rod 12 in the horizontal direction. The first push rod 12 and the baffle 18 are located on the same side of the reflecting plate 7, and the first push rod 12 acts on the top end of the reflecting plate 7, and the baffle 18 acts on the bottom end of the reflecting plate 7.

[0057] When the first push rod 12 pushes the reflecting plate 7 to the preset inclination angle, the baffle 18 abuts against the side of the reflecting plate 7 away from the first push rod 12, and the baffle 18 is used to resist the end of the reflecting plate 7 away from the first push rod 12. In this state, the first push rod 12 and the baffle 18 act on the upper and lower ends of the reflecting plate 7, respectively. The first push rod 12 and the baffle 18 are used to act differently on the upper and lower ends of the reflecting plate 7 to achieve the effect of stably limiting the reflecting plate 7, thereby effectively preventing the phenomenon of polarization of the reflection angle of incident light due to the offset and shaking of the reflecting plate 7 during reflection.

[0058] Referring to Figure 2 、 Figure 3 and Figure 4 , the baffle 18 includes a first plate body 181 and a second plate body 182. The first plate body 181 is horizontally arranged, and the second plate body 182 is obliquely installed on the top of the first plate body 181 near the end close to the reflecting plate 7. When the reflecting plate 7 is limited, the side wall of the second plate body 182 is in close contact with one side of the reflecting plate 7. Since the reflecting plate 7 is in an inclined state, the second plate body 182 is obliquely arranged, so that the second plate body 182 can be more closely attached to the side wall of the reflecting plate 7 when limiting the reflecting plate 7, thereby helping to improve the stability of the baffle 18 in limiting the reflecting plate 7.

[0059] Further, the second plate body 182 is rotationally installed on the first plate body 181, which enables the inclination of the second plate body 182 to be adjusted, and as the reflection plate 7 is adjusted in angle, the inclination of the reflection plate 7 is constantly changed. The second plate body 182 is rotationally installed on the first plate body 181, and the inclination of the second plate body 182 can be adaptively adjusted according to the specific inclination angle of the reflection plate 7, so that the second plate body 182 and the reflection plate 7 can always be kept in parallel state, thereby facilitating the second plate body 182 to always be closely attached to the side wall of the reflection plate 7, thereby helping to improve the stability of the baffle 18 limiting the reflection plate 7.

[0060] Specifically, referring to Figure 3 , the second plate body 182 is connected to the first plate body 181 by a torsion spring at one end close to the first plate body 181, and a second push rod 19 is additionally provided between the first plate body 181 and the other end of the second plate body 182 away from the first plate body 181 in the vertical direction. The second push rod 19 is slidingly installed between the first plate body 181 and the second plate body 182 in the vertical direction, and the other end of the second push rod 19 away from the first plate body 181 abuts against the second plate body 182. The second push rod 19 pushes the second plate body 182 to rotate during sliding in the vertical direction, thereby adjusting the inclination of the second plate body 182.

[0061] Referring to Figure 3 , the top of the first plate body 181 is fixed with an air cylinder 20 in the vertical direction, and the second push rod 19 is vertically inserted into the air cylinder 20. The air cylinder 20 is filled with compressed air, and the second push rod 19 is slidingly installed in the air cylinder 20 in the vertical direction by using the compressed air.

[0062] As shown in Figure 3 , when the reflection plate 7 rotates clockwise, the included angle between the second plate body 182 and the first plate body 181 increases, and the second push rod 19 is elongated; when the reflection plate 7 rotates counterclockwise, the included angle between the second plate body 182 and the first plate body 181 decreases, and the second push rod 19 is retracted. The second push rod 19 is elongated and retracted by using the compressed air in the air cylinder 20, so that the second plate body 182 can always be kept in parallel abutment with the reflection plate 7 during the rotation of the reflection plate 7, and the second plate body 182 can be more closely attached to the side wall of the reflection plate 7, thereby helping to improve the stability of the baffle 18 limiting the reflection plate 7.

[0063] Further, referring to Figure 1 , Figure 3 and Figure 5The bottom of the reflecting plate 7 is integrally connected with an extension plate 21 in the vertical direction, the extension plate 21 is in the shape of a cuboid as a whole, and the extension plate 21 always remains in the vertical state during the rotation of the reflecting plate 7. Meanwhile, the limiting assembly further comprises a clamping piece 22, which is installed at the end of the extension plate 21 away from the reflecting plate 7. When the reflecting angle of the reflecting plate 7 is adjusted, the clamping piece 22 clamps and positions the extension plate 21, the clamping of the extension plate 21 by the clamping piece 22 strengthens the positioning of the reflecting plate 7, thereby further effectively improving the stability of the reflecting plate 7 as a whole, and thereby effectively preventing the phenomenon that the reflecting angle of the incident light deviates during the reflection of the incident light due to the deviation and shaking of the reflecting plate 7.

[0064] Specifically, referring to Figure 1 , Figure 3 and Figure 5 , the bottom of the reflecting plate 7 and the extension plate 21 are integrally connected with an adapter rod 23 in the horizontal direction, the first side of the moving seat 8 close to the clamping piece 22 is provided with a first waist-shaped hole 24, the first waist-shaped hole 24 is in the shape of a curved arc, and the adapter rod 23 penetrates through the first waist-shaped hole 24. Meanwhile, the second waist-shaped hole 25 is provided on the extension plate 21 in the vertical direction, and the end of the adapter rod 23 close to the extension plate 21 extends into the second waist-shaped hole 25.

[0065] With the rotation of the reflecting plate 7, the movement track of the reflecting plate 7 is in the shape of an arc, while the extension plate 21 needs to always remain in the vertical state, and its movement track is in the horizontal state. The adapter rod 23 effectively avoids the movement interference between the reflecting plate 7 and the extension plate 21 during the movement, and the end of the adapter rod 23 in the second waist-shaped hole 25 moves relative to the extension plate 21 in the vertical direction during the movement of the adapter rod 23 in the first waist-shaped hole 24, thereby effectively ensuring the stability of the reflecting plate 7 and the extension plate 21 during the movement.

[0066] Specifically, referring to Figure 5 and Figure 6 , the clamping piece 22 comprises a first clamping plate 221 and a second clamping plate 222, the first clamping plate 221 and the second clamping plate 222 are distributed at the left and right ends of the extension plate 21, and the first clamping plate 221 and the second clamping plate 222 are arranged to slide towards each other or away from each other. When the reflecting angle of the reflecting plate 7 is adjusted, the first clamping plate 221 and the second clamping plate 222 slide towards each other until the first clamping plate 221 and the second clamping plate 222 clamp and position the extension plate 21.

[0067] Specifically, referring to Figure 1 and Figure 6The second side of the moving base 8 close to the clamping part 22 is horizontally provided with a second screw rod 26 driven by a small motor. The first clamping plate 221 and the second clamping plate 222 are sleeved on the second screw rod 26, and the second clamping plate 222 is provided with a threaded hole penetratingly formed thereon, and the second clamping plate 222 is threadedly connected with the second screw rod 26. The first clamping plate 221 is connected with the extension plate 21 at the side close to the extension plate 21, and the second screw rod 26 is sleeved with an auxiliary spring 27, and the first clamping plate 221 is connected with the auxiliary spring 27 at the side away from the extension plate 21.

[0068] In use, the extension plate 21 is driven by the adapter rod 23 to slide in the horizontal direction, and simultaneously drives the first clamping plate 221 to slide, and the side of the extension plate 21 always keeps close to the first clamping plate 221. When the reflection angle of the reflection plate 7 is adjusted, the extension plate 21 keeps static. At this time, the micro motor 10 is started to drive the second screw rod 26 to rotate, and the second screw rod 26 drives the second clamping plate 222 to slide towards the extension plate 21 in the rotating process, until the first clamping plate 221 and the second clamping plate 222 clamp and position the extension plate 21. The first clamping plate 221 provides a resisting force to the extension plate 21 through the auxiliary spring 27 in the sliding process, and then the first clamping plate 221 and the second clamping plate 222 complete the clamping and positioning of the extension plate 21, so as to effectively guarantee the stability of the reflection plate 7 in the light incidence process.

[0069] The implementation principle of the optical wave division multiplexing device according to the embodiment of the present application is as follows:

[0070] The light waves are incident on the side of the reflection block 2 through the incident channel 6, and the reflection block 2 reflects the light waves to the demultiplexer block 3 at a certain angle. The demultiplexer block 3 receives the incident light and divides the incident light into multiple wavelengths. The folding prism 4 and the demultiplexer block 3 are distributed on the left and right sides of the box 1, the folding prism 4 receives the multiple wavelengths from the demultiplexer block 3 and refracts these wavelengths. The focusing lens 5 is located on the side of the folding prism 4 away from the demultiplexer block 3, and is used to receive the multiple wavelengths refracted from the folding prism 4 and focus these wavelengths.

[0071] The demultiplexer block 3 includes an optical block 31 and a filter 32. The reflection plate 7 reflects the incident light to the optical block 31, and the optical block 31 continues to reflect the incident light to the filter 32 for filtering.

[0072] The reflection block 2 is slidingly arranged in the horizontal direction in the machine box 1, and the position of the reflection block 2 in the machine box 1 is adjusted by sliding, so as to adaptively adjust the reflection angle of the incident light. Meanwhile, the side of the reflection block 2 receiving the incident light is provided with a reflection plate 7, and the reflection plate 7 is rotationally arranged on the reflection block 2, and the rotation of the reflection plate 7 further enhances the flexibility of the adjustment of the reflection angle of the incident light, so as to effectively guarantee the wavelength separation precision, the coupling efficiency and the environmental adaptability. By dynamically adjusting the incident angle, the optical wave division multiplexing device can be maintained in the best working state.

[0073] Meanwhile, the machine box 1 is additionally provided with a limiting component for effectively improving the stability of the reflection plate 7, and when the reflection plate 7 is adjusted to a preset angle, the reflection plate 7 is stably limited by the limiting component, so as to effectively prevent the reflection plate 7 from deviating and shaking during the reflection of the incident light, and the polarization of the reflection angle of the incident light is caused, so as to accurately and correctly couple the target wavelength signal to the corresponding output port, and effectively ensure that the signal does not appear the phenomenon of crosstalk and loss.

[0074] The above are the preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An optical wavelength division demultiplexing device for facilitating flexible adjustment of the angle of incident light rays, characterized by: The utility model provides a kind of optical signal splitter, including machine box (1), the inside of machine box (1) is equipped with reflection block (2), demultiplexer block (3), folding prism (4) and focusing lens (5), the top of machine box (1) is equipped with incident channel (6), the inside of machine box (1) keeps communication with incident channel (6), and incident channel (6) corresponds to reflection block (2), demultiplexer block (3) includes optical block (31) and optical filter (32), reflection block (2) is slidably installed in machine box (1) along horizontal direction, the side of reflection block (2) for receiving incident light is equipped with reflection plate (7), reflection plate (7) is rotatably installed on reflection block (2), limit component for improving the stability of reflection plate (7) is additionally provided in machine box (1); The limit component includes a baffle (18), the baffle (18) includes a first plate body (181) and a second plate body (182), the first plate body (181) is horizontally arranged at the bottom of the reflection plate (7), the second plate body (182) is obliquely arranged at the top of the first plate body (181) near the end of the reflection plate (7), and the second plate body (182) and the side wall of the reflection plate (7) are closely attached; The bottom of the reflection block (2) is integrally connected with a moving seat (8), a first lead screw (9) penetrates through the moving seat (8) in the horizontal direction, and a micro motor (10) is fixed to the side wall of the machine box (1), the first lead screw (9) is connected with the driving end of the micro motor (10), and the moving seat (8) is threadedly sleeved on the first lead screw (9); A hinge shaft (11) is installed on one side of the reflection block (2) in the horizontal direction, the reflection plate (7) is sleeved on the hinge shaft (11), a first push rod (12) is slidably arranged between the reflection block (2) and the reflection plate (7) near the top in the horizontal direction, a first gear (13) is installed on the outside of the reflection block (2), a second gear (14) is installed on the bottom of the first push rod (12), the first push rod (12) and the second gear (14) are engaged and connected, and the first gear (13) and the second gear (14) are connected by corresponding rotating shafts.

2. The optical wavelength division demultiplexing device according to claim 1, wherein: A slide rail (15) is formed in the reflection block (2) in the horizontal direction, the first push rod (12) is located in the slide rail (15), a sliding groove (16) is formed in the top inner wall of the slide rail (15) along the length direction, a sliding block (17) is integrally connected to the top of the first push rod (12), the sliding block (17) is slidably installed in the sliding groove (16), and the sliding block (17) and the sliding groove (16) are both in the shape of a "T".

3. The optical wavelength division demultiplexing device according to claim 2, wherein: The second plate body (182) is connected to one end of the first plate body (181) by a torsion spring hinge, and a second push rod (19) is arranged between the first plate body (181) and the second plate body (182) away from one end of the first plate body (181) in the vertical direction, the second push rod (19) is slidably arranged between the first plate body (181) and the second plate body (182) in the vertical direction, one end of the second push rod (19) away from the first plate body (181) abuts the second plate body (182), and a gas cylinder (20) is fixed to the top of the first plate body (181) in the vertical direction, the second push rod (19) penetrates the gas cylinder (20) in the vertical direction, and the gas cylinder (20) is filled with compressed air.

4. The optical wavelength division demultiplexing device according to claim 3, wherein: The bottom of the reflecting plate (7) is integrally connected with an extension plate (21) in the vertical direction, and the limiting assembly further comprises a clamping piece (22), which is arranged at one end of the extension plate (21) away from the reflecting plate (7), and is used for clamping and positioning the extension plate (21); The bottom of the reflecting plate (7) and the extension plate (21) are integrally connected with an adapter rod (23) in the horizontal direction, the mobile seat (8) is provided with a first waist-shaped hole (24) on one side close to the clamping piece (22), the first waist-shaped hole (24) is in a curved arc shape, the adapter rod (23) penetrates the first waist-shaped hole (24), and the extension plate (21) is provided with a second waist-shaped hole (25) penetrating in the vertical direction, and one end of the adapter rod (23) close to the extension plate (21) extends into the second waist-shaped hole (25).

5. The optical wavelength division demultiplexing device according to claim 4, wherein: The clamping piece (22) comprises a first clamping plate (221) and a second clamping plate (222), the first clamping plate (221) and the second clamping plate (222) are arranged on the left and right ends of the extension plate (21), and the first clamping plate (221) and the second clamping plate (222) are arranged to slide towards or away from each other.

6. The optical wavelength division demultiplexing device according to claim 5, wherein: The mobile seat (8) is provided with a second lead screw (26) on one side close to the clamping piece (22) in the horizontal direction, the first clamping plate (221) and the second clamping plate (222) are sleeved on the second lead screw (26), the second clamping plate (222) is provided with a threaded hole penetrating therethrough, the second clamping plate (222) is threadedly connected with the second lead screw (26), one side of the first clamping plate (221) close to the extension plate (21) is connected with the extension plate (21), the second lead screw (26) is sleeved with an auxiliary spring (27), and one side of the first clamping plate (221) away from the extension plate (21) is connected with the auxiliary spring (27).

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