High-precision electric optical fiber delay line
By adjusting the free optical path of the fiber optic delay line, the problem of fixed delay in existing fiber optic delay lines is solved, enabling flexible adjustment of optical signal delay and improving the practicality and stability of fiber optic delay lines.
Patent Information
- Application Number
- CN202520455122.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-17
AI Technical Summary
Existing fiber optic delay lines have a fixed optical signal delay, requiring replacement of the fiber optic delay line to change the delay, which reduces their practicality.
The free optical path is changed by adjusting the mechanism, which includes a limit rod, slider, slide groove, mounting frame, corner prism and fiber collimator. The slider is adjusted by using a microcontroller and motor to drive the lead screw, so as to flexibly adjust the degree of optical signal delay.
It enables flexible adjustment of optical signal delay, improves the practicality of fiber optic delay lines, and enhances the stability and flexibility of optical signal processing.
Smart Images
Figure CN223857501U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to optical information processing technical field, concretely is a kind of high-precision electric optical fiber delay line. BACKGROUND
[0002] In order to enhance the anti-interference ability in optical information processing process, improve stability, when using optical fiber to transfer optical signal, optical fiber delay line is usually used, optical fiber delay line is one of key devices in optical information processing technology, it is a kind of device using optical fiber to realize optical signal time delay;
[0003] The existing optical fiber delay line, based on the feature that light needs a certain time to propagate in optical fiber, after the time-delayed optical signal is transmitted through a certain length of optical fiber, time delay is realized;
[0004] The existing optical fiber delay line has the following problems: the optical signal delay degree of single optical fiber delay line is usually fixed, if the delay degree of optical signal needs to be changed, the optical fiber delay line needs to be removed, and then the appropriate optical fiber delay line is replaced, which reduces the practicability of the optical fiber delay line, therefore, we provide a kind of high-precision electric optical fiber delay line. UTILITY MODEL CONTENTS
[0005] The technical problem to be solved by the utility model is to overcome the defects of the prior art, provide a kind of high-precision electric optical fiber delay line, change free optical path by adjusting mechanism, to realize the change of the delay degree of optical signal, the delay time is proportional to the length of free optical path, improve the practicability of the optical fiber delay line, can effectively solve the problems in the background art.
[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of high-precision electric optical fiber delay line, including shell and adjusting mechanism;
[0007] Adjusting mechanism: it includes limiting rod, sliding block, sliding slot, mounting frame, corner cube prism and optical fiber collimator, the left and right sides of the inside of shell are equipped with limiting rod, one sliding block is slidably connected between the two limiting rods, the upper surface of the partition board provided in the inside of shell is provided with sliding slot, the upper end of sliding block is slidably connected in the inside of sliding slot, the upper surface of sliding block is fixedly connected with mounting frame, corner cube prism is provided in the inside of mounting frame, mounting hole is provided in the left and right sides of the front side of shell, optical fiber collimator is provided in the inside of mounting hole, the optical fiber collimator of left side is input end, and the optical fiber collimator of right side is output end, change free optical path by adjusting mechanism, to realize the change of the delay degree of optical signal, the delay time is proportional to the length of free optical path, improve the practicability of the optical fiber delay line.
[0008] Further, the single-chip microcomputer is fixedly connected to the right side of the shell, an input end of the single-chip microcomputer is electrically connected to an external power supply, and thus the normal work of the control device is facilitated.
[0009] Further, the adjusting mechanism further comprises a lead screw, the inside of the shell is rotatably connected with the lead screw, and the outer surface of the lead screw is threadedly connected with the threaded hole in the middle of the sliding block, so that the normal work of the adjusting mechanism is facilitated.
[0010] Further, the rear side of the shell is provided with a motor, the front end of an output shaft of the motor is fixedly connected with the rear end of the lead screw, and the input end of the motor is electrically connected with the output end of the single-chip microcomputer, so that a driving force is provided.
[0011] Further, the adjusting mechanism further comprises a connecting block, a guide groove, a pointer and a scale, the upper surface of the sliding block is provided with the connecting block, the left side of the shell is provided with the guide groove, the connecting block is slidably connected to the inside of the guide groove, the right end of the connecting block is provided with the pointer, and the left side of the shell is provided with the uniformly distributed scale, so that accurate adjustment is facilitated.
[0012] Further, the front side of the shell is provided with a supporting seat, the upper surface of the supporting seat is provided with the placing block on the left and right sides, the upper surface of the supporting seat is provided with the fixing seat on the left and right sides, the inside of the fixing seat is provided with the slot, the inside of the slot is provided with the limiting column, one pulling block is slidably connected between the two limiting columns, and the lower surface of the pulling block is provided with the clamping block corresponding to the placing block, so that the optical fiber is fixed.
[0013] Further, the outer surface of the limiting column is movably provided with the spring, and the spring is located between the upper surface of the pulling block and the inner wall of the slot on the same side, so that the optical fiber is fixed.
[0014] Compared with the prior art, the high-precision electric optical fiber delay line has the following advantages:
[0015] Under the limitation of the limiting rod, the rotation of the lead screw drives the sliding block to slide along the sliding groove, the mounting frame drives the corner cube prism to move, the distance between the light collimator and the corner cube prism is changed, the length of the free optical path is changed, the delay degree of the optical signal is changed, in the adjusting process, the connecting block drives the pointer to move, the position of the pointer on the scale is observed, when the adjustment reaches the appropriate degree, the adjustment can be stopped, the delay time is proportional to the length of the free optical path, and the practicability of the optical fiber delay line is improved. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a structural schematic view of the utility model;
[0017] Figure 2 It is a structural schematic view of the utility model in section;
[0018] Figure 3 It is the structure schematic view of the utility model A place amplification;
[0019] Figure 4 It is the structure schematic view of the utility model B place amplification.
[0020] In the figure: 1 shell, 2 single-chip microcomputer, 3 adjusting mechanism, 301 limit rod, 302 sliding block, 303 sliding slot, 304 mounting frame, 305 corner cube prism, 306 optical fiber collimator, 307 lead screw, 308 connecting block, 309 guide slot, 310 pointer, 311 scale, 4 motor, 5 support seat, 6 placing block, 7 fixed seat, 8 slot, 9 limit post, 10 pull block, 11 clamping block, 12 spring. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0022] Please refer to Figures 1-4 The utility model provides a kind of high-precision electric optical fiber delay line, including shell 1 and adjusting mechanism 3, also including single-chip microcomputer 2, single-chip microcomputer 2 is fixedly connected to the right side surface of shell 1, the input end of single-chip microcomputer 2 is electrically connected external power supply, the front side of shell 1 is equipped with support seat 5, the upper surface of support seat 5 is equipped with placing block 6 on left and right sides, the upper surface of support seat 5 is equipped with fixed seat 7 on left and right sides, the inside of fixed seat 7 is all equipped with slot 8, the inside of slot 8 is all equipped with limit post 9, one pull block 10 is slidably connected between two limit posts 9, the lower surface of pull block 10 is equipped with clamping block 11 corresponding to placing block 6 one by one, the outer surface of limit post 9 is movably equipped with spring 12, spring 12 is all located between the upper surface of pull block 10 and the inner wall of same side slot 8, staff pulls pull block 10 upwards, then the end of output optical fiber is inserted into left optical fiber collimator 306, then the first end of input optical fiber is inserted into right optical fiber collimator 306, then pull block 10 is loosened, under the action of spring 12 rebound force and the restriction of limit post 9, pull block 10 moves downwards along slot 8, so that clamping block 11 moves downwards, until clamping block 11 and placing block 6 fix two optical fibers together with shell, then optical fiber inputs optical signal from the port of left optical fiber collimator 306, after the reflection of corner cube prism 305, incident optical signal is parallel with reflected optical signal, the direction of optical signal is reversed, and is reflected to right optical fiber collimator 7 and outputs, optical signal is received and forms a free optical path.
[0023] Adjusting mechanism 3: it includes limit rod 301, sliding block 302, sliding groove 303, mounting frame 304, corner cube prism 305 and optical fiber collimator 306, the inside of shell 1 is equipped with limit rod 301 on both sides, slidingly connected with a sliding block 302 between the two limit rods 301, the upper surface of the partition plate provided in the inside of shell 1 is provided with sliding groove 303, the upper end of sliding block 302 is slidingly connected in the inside of sliding groove 303, the upper surface of sliding block 302 is fixedly connected with mounting frame 304, corner cube prism 305 is provided in the inside of mounting frame 304, mounting hole is provided on both sides of the front side of shell 1, optical fiber collimator 306 is provided in the inside of mounting hole, the left optical fiber collimator 306 is input end, and the right optical fiber collimator 306 is output end, adjusting mechanism 3 further includes screw rod 307, screw rod 307 is rotatably connected in the inside of shell 1, screw thread hole is provided on the outer surface of screw rod 307 and the middle part of sliding block 302, motor 4 is provided on the rear side of shell 1, the output shaft front end of motor 4 is fixedly connected with the rear end of screw rod 307, the input end of motor 4 is electrically connected with the output end of single-chip microcomputer 2, adjusting mechanism 3 further includes connecting block 308, guide groove 309, pointer 310 and scale 311, connecting block 308 is provided on the upper surface right end of sliding block 302, guide groove 309 is provided on the left side of shell 1, connecting block 308 is slidingly connected in the inside of guide groove 309, pointer 310 is provided on the right end of connecting block 308, scale 311 is provided on the left side of shell 1, when the degree of delay of optical signal needs to be adjusted, single-chip microcomputer 2 is controlled to open motor 4, the output shaft of motor 4 drives screw rod 307 to rotate, the rotation of screw rod 307 drives sliding block 302 connected with screw thread to slide along sliding groove 303 under the limitation of limit rod 301, the movement of sliding block 303 drives corner cube prism 305 to move through mounting frame 304, so that the distance between optical collimator 306 and corner cube prism 305 changes, so that the length of free optical path changes, so as to realize the change of the degree of delay of optical signal, in the process of adjusting, the movement of sliding block 303 drives pointer 310 to move along guide groove 309 through connecting block 308, the staff observes the position of pointer 310 on scale 311, when the appropriate degree is adjusted, the adjustment can be stopped.
[0024] The working principle of the high-precision electric optical fiber delay line is as follows: the staff pulls the pull block 10 upwards, then inserts the tail end of the output optical fiber into the left optical fiber collimator 306, then inserts the head end of the input optical fiber into the right optical fiber collimator 306, then releases the pull block 10, under the action of the spring 12 and the limitation of the limiting column 9, the pull block 10 moves downwards along the slot 8, the clamping block 11 moves downwards, until the clamping block 11 and the placing block 6 fix the two optical fibers and the shell together, then the optical fiber inputs the optical signal from the port of the left optical fiber collimator 306, after the reflection of the corner cube prism 305, the incident optical signal is parallel to the reflected optical signal, the direction of the optical signal is reversed, and the optical signal is output on the right optical fiber collimator 7, the optical signal is received and forms a free optical path, when the delay degree of the optical signal needs to be adjusted, the single-chip microcomputer 2 controls the motor 4 to be started, the output shaft of the motor 4 drives the screw rod 307 to rotate, the rotation of the screw rod 307 drives the sliding block 302 connected with the screw rod 307 to slide along the sliding groove 303 under the limitation of the limiting rod 301, the movement of the sliding block 303 drives the corner cube prism 305 to move through the mounting frame 304, so that the distance between the optical collimator 306 and the corner cube prism 305 changes, so that the length of the free optical path changes, so as to change the delay degree of the optical signal, in the adjusting process, the movement of the sliding block 303 drives the pointer 310 to move along the guide groove 309 through the connecting block 308, the staff observes the position of the pointer 310 on the scale 311, and when the adjustment is appropriate, the adjustment can be stopped.
[0025] It is worth noting that the single-chip microcomputer 2 disclosed in the above embodiment can be selected as PY32MD310, and the motor 4 can be selected as Y180L-615, and the single-chip microcomputer 2 controls the motor 4 to work by using the method commonly used in the prior art.
[0026] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation obtained by using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.
Claims
1. A high precision electrically tunable optical fiber delay line, characterized in that: It comprises a shell (1) and an adjusting mechanism (3); The adjusting mechanism (3) comprises a limiting rod (301), a sliding block (302), a sliding groove (303), a mounting frame (304), a corner cube prism (305) and a fiber collimator (306), the left and right sides of the inside of the shell (1) are each provided with a limiting rod (301), a sliding block (302) is slidably connected between the two limiting rods (301), a sliding groove (303) is formed in the upper surface of the partition plate provided in the inside of the shell (1), the upper end of the sliding block (302) is slidably connected to the inside of the sliding groove (303), the upper surface of the sliding block (302) is fixedly connected with the mounting frame (304), the inside of the mounting frame (304) is provided with the corner cube prism (305), mounting holes are formed in the left and right sides of the front side of the shell (1), and the inside of each mounting hole is provided with a fiber collimator (306); the left fiber collimator (306) is an input end, and the right fiber collimator (306) is an output end.
2. A high precision electrically tunable optical fiber delay line according to claim 1, characterized in that: It also comprises a single-chip microcomputer (2), which is fixedly connected to the right side of the shell (1), and the input end of the single-chip microcomputer (2) is electrically connected with an external power supply.
3. A high precision electrically tunable optical fiber delay line according to claim 2, characterized in that: The adjusting mechanism (3) further comprises a lead screw (307), the inside of the shell (1) is rotatably connected with the lead screw (307), and the outer surface of the lead screw (307) is threadedly connected with a threaded hole formed in the middle portion of the sliding block (302).
4. A high precision electrically tunable optical fiber delay line according to claim 3, characterized in that: The rear side of the shell (1) is provided with a motor (4), the front end of the output shaft of the motor (4) is fixedly connected with the rear end of the lead screw (307), and the input end of the motor (4) is electrically connected with the output end of the single-chip microcomputer (2).
5. The high precision electrically tunable optical fiber delay line according to claim 1, characterized in that: The adjusting mechanism (3) further comprises a connecting block (308), a guide groove (309), a pointer (310) and a scale (311), the upper surface of the right end of the sliding block (302) is provided with the connecting block (308), the left side of the shell (1) is provided with the guide groove (309), the connecting block (308) is slidably connected to the inside of the guide groove (309), the right end of the connecting block (308) is provided with the pointer (310), and the left side of the shell (1) is provided with the uniformly distributed scale (311).
6. A high precision electrically tunable optical fiber delay line according to claim 1, characterized in that: The front side of the shell (1) is provided with a supporting seat (5), the upper surface of the supporting seat (5) is provided with a placing block (6) on the left and right sides, the upper surface of the supporting seat (5) is provided with a fixing seat (7) on the left and right sides, the inside of the fixing seat (7) is provided with a notch (8), the inside of the notch (8) is provided with a limiting column (9), a pulling block (10) is slidably connected between the two limiting columns (9), and the lower surface of the pulling block (10) is provided with a clamping block (11) corresponding to the placing block (6).
7. A high precision electrically tunable optical fiber delay line according to claim 6, characterized in that: The outer surfaces of the limiting columns (9) are movably provided with springs (12), and the springs (12) are located between the upper surfaces of the pulling blocks (10) and the inner walls of the notches (8) on the same side.