C-band pulse optical fiber amplifier

Abstract

The utility model discloses a C-band pulse optical fiber amplifier which comprises an optical fiber amplification bin. A sealing mechanism is arranged at the upper end of the optical fiber amplification bin and comprises a sealing plate, L-shaped plates, sliding columns and sliding grooves, the sliding grooves are symmetrically formed in the left end and the right end of the optical fiber amplification bin, the sliding columns are slidably connected into the sliding grooves, the ends, close to the center of the optical fiber amplification bin, of the sliding columns are fixedly connected with the L-shaped plates, and the sliding grooves are formed in the upper end of the optical fiber amplification bin. The C-band pulse optical fiber amplifier further comprises rotary knobs, the rotary knobs are fixedly connected to the ends, away from the center of the optical fiber amplification bin, of the sliding columns, and the width of the L-shaped plates is larger than that of the sliding grooves. Rapid opening and closing of the closing plate can be achieved, and equipment maintenance is facilitated while the sealing performance of the optical fiber amplifier is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical fiber amplifier technical field, concretely is a kind of C waveband pulse optical fiber amplifier. BACKGROUND

[0002] C waveband pulse optical fiber amplifier, especially C waveband pulse type erbium-doped fiber amplifier, is a kind of optical fiber amplifier specially used for low repetition frequency nanosecond laser pulse, adopts erbium ion optical fiber as gain medium, generates particle number inversion under the action of pump light, and then realizes stimulated emission amplification under the induction of signal light;

[0003] The existing C waveband pulse optical fiber amplifier combines pump light generated by pump laser and optical signal by wavelength division multiplexer, and then realizes the transition of optical signal inside the optical fiber, while optical isolator prevents the reverse transmission of optical signal, protects the amplifier from reflected light, and the fixing of closure plate is carried out by the screw thread connection mode of screw and optical fiber amplification bin threaded hole, when the equipment needs to be overhauled, personnel need to rotate the screw to separate from the installation threaded hole, the process is more cumbersome, is not conducive to the quick opening and closing of closure plate, and affects the convenience degree of equipment overhaul. SUMMARY

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art, provide a C waveband pulse optical fiber amplifier, which can realize the quick opening and closing of closure plate, ensure the sealing of optical fiber amplifier and facilitate the overhaul of equipment, and effectively solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a C waveband pulse optical fiber amplifier, comprising an optical fiber amplification bin;

[0006] The optical fiber amplification bin is provided with a closure mechanism at the upper end, the closure mechanism comprises a closure plate, an L-shaped plate, a sliding column and a sliding groove, the sliding grooves are symmetrically arranged at the left and right ends of the optical fiber amplification bin, the sliding columns are slidably connected in the sliding grooves, one end of the sliding column close to the center of the optical fiber amplification bin is fixedly connected with the L-shaped plate, the upper end of the optical fiber amplification bin is provided with a sliding groove, the closure plate is slidably connected in the sliding groove, the inside of the closure plate is provided with a notch, the upper end of the L-shaped plate is matched and installed with the corresponding end of the notch, the quick opening and closing of the closure plate can be realized, the sealing of the optical fiber amplifier is ensured, and the overhaul of equipment is facilitated.

[0007] Further, the closure mechanism further comprises knobs, the knobs are fixedly connected to one end of the sliding column away from the center of the optical fiber amplification bin, the width of the L-shaped plate is greater than the width of the sliding groove, and the length of the L-shaped plate is greater than the length of the sliding groove, so as to ensure the sealing of the optical fiber amplifier and facilitate the movement of the L-shaped plate.

[0008] Further, the closing mechanism further comprises telescopic columns and springs, the telescopic columns are symmetrically fixedly connected to the left and right ends of the bottom wall of the optical fiber amplification bin, the telescopic ends of the telescopic columns are fixedly connected with the lower ends of the vertically adjacent L-shaped plates, the lower ends of the L-shaped plates and the bottom wall of the optical fiber amplification bin are fixedly connected with the springs, and the springs are movably sleeved on the outer surfaces of the horizontally adjacent telescopic columns, so that driving force is provided for the reset of the L-shaped plates.

[0009] Further, the bottom wall of the optical fiber amplification bin is provided with a single-chip microcomputer at the middle portion, a pump laser is arranged at the rear end of the bottom wall of the optical fiber amplification bin, an optical isolator is arranged at the front end of the bottom wall of the optical fiber amplification bin, a wavelength division multiplexer is arranged at the front end of the bottom wall of the optical fiber amplification bin, the output end of the pump laser is electrically connected with the input end of the wavelength division multiplexer, the wavelength division multiplexer is bidirectionally electrically connected with the optical isolator, the input ends of the optical isolator, the wavelength division multiplexer and the pump laser are electrically connected with the output end of the single-chip microcomputer, and the input end of the single-chip microcomputer is electrically connected with an external power supply, so that optical signal amplification is realized.

[0010] Further, the right end of the front side surface of the optical fiber amplification bin is provided with an input interface, the input end of the input interface is electrically connected with the output end of an external input optical fiber, the output end of the input interface is electrically connected with the input end of the optical isolator, the right end of the front side surface of the optical fiber amplification bin is provided with an output interface, the output end of the optical isolator is electrically connected with the input end of the output interface, and the output end of the output interface is electrically connected with the input end of an external output optical fiber, so that a channel is provided for unidirectional input and output of optical signals.

[0011] Further, the left and right ends of the optical fiber amplification bin are provided with fan grooves, and the fan grooves are provided with fans, the input ends of the fans are electrically connected with the output end of the single-chip microcomputer, and heat dissipation of the optical fiber amplifier is realized.

[0012] Further, the left end of the front side surface of the optical fiber amplification bin is provided with a control panel, and the control panel is bidirectionally electrically connected with the single-chip microcomputer, so that instructions are sent to each device.

[0013] Compared with the prior art, the C-band pulse optical fiber amplifier has the following advantages:

[0014] The four-point-distributed L-shaped plates achieve the internal support of the notches, and then the position locking of the closing plate is achieved, when the closing plate needs to be opened, any one knob is pressed, the two L-shaped plates on the same side are lowered, the position locking of the closing plate is ended, and then the closing plate is slid to achieve the opening of the closing plate, while the sealing property of the optical fiber amplifier is ensured, the equipment is convenient to maintain. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a structural schematic view of the utility model;

[0016] Fig. 2The utility model discloses a cross section structure schematic diagram in the inside for the utility model.

[0017] Fig. 3 The utility model discloses a place amplification structure schematic diagram for the utility model A.

[0018] In the drawing: 1 optical fiber amplification bin, 2 closed mechanism, 21 closed board, 22 L type board, 23 slide post, 24 slide slot, 25 knob, 26 telescopic column, 27 spring, 3 singlechip, 4 optical isolator, 5 wavelength division multiplexer, 6 pump laser, 7 input interface, 8 output interface, 9 control panel, 10 fan groove, 11 fan. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0020] Please refer to Figs. 1-3 The utility model discloses a kind of technical solutions: a C-band pulse fiber amplifier, including optical fiber amplification bin 1;

[0021] The optical fiber amplification bin 1 is provided with a closing mechanism 2 at the upper end, the closing mechanism 2 comprises a closing plate 21, an L-shaped plate 22, a sliding column 23 and a sliding groove 24, the sliding grooves 24 are symmetrically arranged at the left and right ends of the optical fiber amplification bin 1, the sliding columns 23 are slidably connected in the sliding grooves 24, the L-shaped plates 22 are fixedly connected to the ends of the sliding columns 23 close to the center of the optical fiber amplification bin 1, the upper end of the optical fiber amplification bin 1 is provided with a sliding groove, the closing plate 21 is slidably connected in the sliding groove, the closing plate 21 is provided with a notch in the inside, the upper end of the L-shaped plate 22 is matched and installed with the corresponding end of the notch, the closing mechanism 2 further comprises a knob 25, the knob 25 is fixedly connected to the end of the sliding column 23 away from the center of the optical fiber amplification bin 1, the width of the L-shaped plate 22 is greater than the width of the sliding groove 24, the length of the L-shaped plate 22 is greater than the length of the sliding groove 24, the closing mechanism 2 further comprises a telescopic column 26 and a spring 27, the telescopic columns 26 are symmetrically fixedly connected to the left and right ends of the bottom wall of the optical fiber amplification bin 1, the telescopic ends of the telescopic columns 26 are fixedly connected with the lower ends of the vertically adjacent L-shaped plates 22, the springs 27 are fixedly connected between the lower ends of the L-shaped plates 22 and the bottom wall of the optical fiber amplification bin 1, the springs 27 are movably sleeved on the outer surfaces of the horizontally adjacent telescopic columns 26, in the closing state of the closing plate 21, the upper end of the side surface of the L-shaped plate 22 away from the center of the optical fiber amplification bin 1 is matched with the inner wall of the notch, the four L-shaped plates 22 work cooperatively to lock the horizontal position of the closing plate 21, when the equipment needs to be overhauled, the two knobs 25 on the left are pressed at the same time, the knobs 25 move downward to drive the horizontally adjacent two sliding columns 23 to move downward, the two sliding columns 23 on the left move downward in the corresponding sliding grooves 24 to drive the horizontally adjacent two L-shaped plates 22 to move downward, the two L-shaped plates 22 on the left move downward to make the telescopic ends of the vertically adjacent telescopic columns 26 contract, so that the vertically adjacent springs 27 are elastically compressed, when the upper ends of the L-shaped plates 22 on the left slide out of the inside of the notch, the closing plate 21 is slid to the right, when the upper ends of the two L-shaped plates 22 on the right are matched with the left inner wall of the notch, the pressing of the two knobs 25 on the left is stopped, the elastic force of the spring 27 acts on the vertically adjacent L-shaped plate 22, the two L-shaped plates 22 on the left move upward at the same time, the telescopic ends of the two telescopic columns 26 on the left extend at the same time, the two sliding columns 23 on the left slide upward in the corresponding sliding grooves 24, the sliding of the horizontally adjacent L-shaped plates 22 is limited and guided, finally the two L-shaped plates 22 on the left are reset, at the same time the closing plate 21 is opened, and the equipment is overhauled;

[0022] The middle part of the bottom wall of the optical fiber amplification bin 1 is provided with a single-chip microcomputer 3, the rear end of the bottom wall of the optical fiber amplification bin 1 is provided with a pump laser 6, the front end of the bottom wall of the optical fiber amplification bin 1 is provided with an optical isolator 4, the front end of the bottom wall of the optical fiber amplification bin 1 is provided with a wavelength division multiplexer 5, the output end of the pump laser 6 is electrically connected with the input end of the wavelength division multiplexer 5, the wavelength division multiplexer 5 is bidirectionally electrically connected with the optical isolator 4, the input ends of the optical isolator 4, the wavelength division multiplexer 5 and the pump laser 6 are all electrically connected with the output end of the single-chip microcomputer 3, the input end of the single-chip microcomputer 3 is electrically connected with an external power supply, the right end of the front side surface of the optical fiber amplification bin 1 is provided with an input interface 7, the input end of the input interface 7 is electrically connected with the output end of an external input optical fiber, the output end of the input interface 7 is electrically connected with the input end of the optical isolator 4, the right end of the front side surface of the optical fiber amplification bin 1 is provided with an output interface 8, the output end of the optical isolator 4 is electrically connected with the input end of the output interface 8, the output end of the output interface 8 is electrically connected with the input end of an external output optical fiber, the output end of the external input optical fiber is connected with the input end of the input interface 7, and the input end of the external output optical fiber is connected with the output end of the output interface 8, the optical signal enters the optical isolator 4 through the input interface 7, the optical isolator 4 transmits the optical signal to the input end of the wavelength division multiplexer 5, the single-chip microcomputer 3 realizes the operation of the pump laser 6, the pump laser 6 generates pump light and transmits the pump light to the input end of the wavelength division multiplexer 5, the wavelength division multiplexer 5 combines the pump light and the signal light together, amplifies the optical fiber signal, and then the amplified optical fiber signal enters the output interface 8 through the optical isolator 4 and then moves out through the external output optical fiber, the optical isolator 4 prevents the reverse transmission of the optical signal and protects the amplifier from the damage of reflected light;

[0023] The left and right ends of the optical fiber amplification bin 1 are both provided with a fan groove 10, the inside of the fan groove 10 is provided with a fan 11, the input end of the fan 11 is electrically connected with the output end of the single-chip microcomputer 3, after the optical fiber amplifier works for a certain period of time, the single-chip microcomputer 3 realizes the operation of the fan 11, the left fan 11 introduces the external air into the inside of the optical fiber amplification bin 1, the right fan 11 leads the air in the optical fiber amplification bin 1 out, thereby realizing the rapid exchange of the air in and out of the optical fiber amplification bin 1 and realizing the heat dissipation work of the equipment.

[0024] The left end of the front side surface of the optical fiber amplification bin 1 is provided with a control panel 9, the control panel 9 is bidirectionally electrically connected with the single-chip microcomputer 3, and the single-chip microcomputer 3 is given the optical fiber signal instruction required for amplification through the control panel 9.

[0025] The working principle of the C-band pulse optical fiber amplifier is as follows: in operation, personnel first connect the output end of the external input optical fiber with the input end of the input interface 7, and connect the input end of the external output optical fiber with the output end of the output interface 8, the optical signal enters the optical isolator 4 through the input interface 7, the optical isolator 4 transmits the optical signal to the input end of the wavelength division multiplexer 5, then the single-chip microcomputer 3 is instructed by the control panel 9 to amplify the optical fiber signal, the single-chip microcomputer 3 controls the pump laser 6 to operate, the pump laser 6 generates pump light, and transmits the pump light to the input end of the wavelength division multiplexer 5, the wavelength division multiplexer 5 combines the pump light and the signal light together, and amplifies the optical fiber signal, the amplified optical fiber signal enters the output interface 8 through the optical isolator 4, and then is removed through the external output optical fiber, the optical isolator 4 prevents the reverse transmission of the optical signal, and protects the amplifier from damage caused by reflected light, in the closed state of the closure plate 21, the upper ends of the side surfaces of the L-shaped plates 22 away from the center of the optical fiber amplification bin 1 are attached to the inner walls of the notches, the four L-shaped plates 22 work cooperatively to lock the horizontal position of the closure plate 21, when the equipment needs to be overhauled, personnel press the two knobs 25 on the left side at the same time, the downward movement of the knobs 25 drives the two slide columns 23 horizontally adjacent to move downward, the two slide columns 23 on the left side move downward in the corresponding slide grooves 24, and drive the two L-shaped plates 22 horizontally adjacent to move downward, the downward movement of the two L-shaped plates 22 on the left side makes the telescopic ends of the telescopic columns 26 vertically adjacent to contract, and then the springs 27 vertically adjacent are elastically compressed, when the upper ends of the L-shaped plates 22 on the left side slide out of the notches, personnel slide the closure plate 21 to the right, when the upper ends of the two L-shaped plates 22 on the right side are attached to the left inner walls of the notches, personnel stop pressing the two knobs 25 on the left side, the elastic force of the springs 27 acts on the L-shaped plates 22 vertically adjacent, the two L-shaped plates 22 on the left side move upward at the same time, the telescopic ends of the two telescopic columns 26 on the left side extend at the same time, and the two slide columns 23 on the left side slide upward in the corresponding slide grooves 24 at the same time, which provides limiting and guiding effects for the sliding of the L-shaped plates 22 horizontally adjacent, and finally the two L-shaped plates 22 on the left side are reset, and the closure plate 21 is opened, and personnel overhaul the equipment, after the optical fiber amplifier works for a certain period of time, the single-chip microcomputer 3 controls the fan 11 to operate, the fan 11 on the left side introduces external air into the optical fiber amplification bin 1, the fan 11 on the right side leads the air in the optical fiber amplification bin 1 out, and then the rapid exchange of the air in and out of the optical fiber amplification bin 1 is realized, and then the heat dissipation of the equipment is realized.

[0026] It is worth noting that the optical isolator 4 disclosed in the above embodiment can be selected from a micro isolator 1572 (C band) nm GFF hybrid type, the wavelength division multiplexer 5 can be selected from a ZS-C182761M, the pump laser 6 can be selected from a BFRA-C-1550-1400SM-M / B, and the single-chip microcomputer 3 controls the optical isolator 4, the wavelength division multiplexer 5, the pump laser 6, the control panel 9 and the fan 11 to work, which all adopt the method commonly used in the prior art.

[0027] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made by using the content of the present application specification and drawings, are also included in the patent protection range of the present application.

Claims

1. A C-band pulsed fiber amplifier characterized by: Including optical fiber amplification bin (1); The upper end of the optical fiber amplification bin (1) is provided with a closing mechanism (2), the closing mechanism (2) comprises a closing plate (21), an L-shaped plate (22), a sliding column (23) and a sliding groove (24), the sliding groove (24) is symmetrically arranged at the left and right ends of the optical fiber amplification bin (1), the inside of the sliding groove (24) is slidably connected with the sliding column (23), one end of the sliding column (23) close to the center of the optical fiber amplification bin (1) is fixedly connected with the L-shaped plate (22), the upper end of the optical fiber amplification bin (1) is provided with a sliding groove, the inside of the sliding groove is slidably connected with the closing plate (21), the inside of the closing plate (21) is provided with a notch, and the upper end of the L-shaped plate (22) is matched and installed with the corresponding end of the notch.

2. A C-band pulsed fiber amplifier as claimed in claim 1, characterized in that: The closing mechanism (2) further comprises a knob (25), the knob (25) is fixedly connected to one end of the sliding column (23) away from the center of the optical fiber amplification bin (1), the width of the L-shaped plate (22) is greater than the width of the sliding groove (24), and the length of the L-shaped plate (22) is greater than the length of the sliding groove (24).

3. A C-band pulsed fiber amplifier as claimed in claim 1, characterized in that: The closing mechanism (2) further comprises a telescopic column (26) and a spring (27), the telescopic column (26) is symmetrically fixedly connected to the left and right ends of the bottom wall of the optical fiber amplification bin (1), the telescopic ends of the telescopic column (26) are fixedly connected with the lower ends of the vertically adjacent L-shaped plates (22), the springs (27) are fixedly connected between the lower ends of the L-shaped plates (22) and the bottom wall of the optical fiber amplification bin (1), and the springs (27) are movably sleeved on the outer surfaces of the horizontally adjacent telescopic columns (26).

4. The C-band pulsed fiber amplifier of claim 1, wherein: The middle part of the bottom wall of the optical fiber amplification bin (1) is provided with a single-chip microcomputer (3), the rear end of the bottom wall of the optical fiber amplification bin (1) is provided with a pump laser (6), the front end of the bottom wall of the optical fiber amplification bin (1) is provided with an optical isolator (4), the front end of the bottom wall of the optical fiber amplification bin (1) is provided with a wavelength division multiplexer (5), the output end of the pump laser (6) is electrically connected with the input end of the wavelength division multiplexer (5), the wavelength division multiplexer (5) is bidirectionally electrically connected with the optical isolator (4), the input ends of the optical isolator (4), the wavelength division multiplexer (5) and the pump laser (6) are electrically connected with the output end of the single-chip microcomputer (3), and the input end of the single-chip microcomputer (3) is electrically connected with an external power supply.

5. A C-band pulsed fiber amplifier as claimed in claim 4, characterized in that: The right end of the front side surface of the optical fiber amplification bin (1) is provided with an input interface (7), the input end of the input interface (7) is electrically connected with the output end of an external input optical fiber, the output end of the input interface (7) is electrically connected with the input end of the optical isolator (4), the right end of the front side surface of the optical fiber amplification bin (1) is provided with an output interface (8), the output end of the optical isolator (4) is electrically connected with the input end of the output interface (8), and the output end of the output interface (8) is electrically connected with the input end of an external output optical fiber.

6. A C-band pulsed fiber amplifier as claimed in claim 4, characterized in that: The left and right ends of the optical fiber amplification bin (1) are provided with fan grooves (10), the inside of the fan groove (10) is provided with a fan (11), and the input end of the fan (11) is electrically connected with the output end of the single-chip microcomputer (3).

7. A C-band pulsed fiber amplifier as claimed in claim 4, characterized in that: The left end of the front side surface of the optical fiber amplification bin (1) is provided with a control panel (9), and the control panel (9) is bidirectionally electrically connected with the single-chip microcomputer (3).

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