Fiber optic patch cord, fiber optic laser and laser therapy device

Abstract

The utility model relates to the technical field of fiber lasers, and in particular to an optical fiber jumper armored cable, an optical fiber laser, and a laser therapeutic device. The optical fiber jumper armored cable has an optical fiber, a water vapor channel, and a metal tube. The optical fiber and the water vapor channel are arranged side by side in the metal tube. The optical fiber is used to receive and transmit lasers, and the optical fiber includes a gain optical fiber; one end of the water vapor channel is used to pass water vapor, and the other end is used to output water vapor; the metal tube is also filled with a heat conductive material. The optical fiber jumper armored cable integrates the gain optical fiber therein, so that the gain optical fiber does not need to be coiled in the housing of the fiber laser, which is conducive to increasing the heat dissipation area and improving the heat dissipation performance of the gain optical fiber; the water vapor in the water vapor channel, the metal tube, and the heat conductive material filled therein can play a role in heat conduction and heat dispersion, which can save the gain optical fiber heat dissipation module and reduce the volume and weight of the fiber laser.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber lasers, and in particular to an optical fiber jumper armored cable, an optical fiber laser and a laser therapeutic device. Background Art

[0002] Since its birth, laser has been widely used in clinical medical diagnosis and treatment. It has not only become an advanced means of treating diseases, but also developed into an important branch of medicine. In fact, after almost every laser comes out, people will explore and discover its effective application in the medical field. Focusing the laser to the micron level can be used for various cutting operations; the low-temperature thermal effect of the laser can be used to reduce inflammation and relieve pain; the laser can be absorbed by human pigments to produce photochemical reactions, thereby destroying the entire cell; in the oral field, the use of laser can effectively close the capillaries in the mouth, and can also decompose and denature bacterial proteins to achieve the effects of reducing swelling, stopping bleeding and killing bacteria.

[0003] In the selection of other wavelengths beyond the wavelength range of semiconductor lasers, it is necessary to pump other working materials for stimulation to obtain other wavelengths. Fiber lasers are currently the most widely used lasers. Traditional fiber lasers are mainly composed of pump light emission sources, pump signal beam combining modules, beam splitters, gain fibers, and laser output modules. The gain fibers are coiled in the housing. Because the gain fibers generate heat when working, a gain fiber heat dissipation module is usually set up to dissipate the heat of the gain fibers. The gain fiber heat dissipation module has a certain volume and weight, so it will cause the fiber laser to be larger in size and heavier in weight. Utility Model Content

[0004] The purpose of the utility model is to provide an optical fiber jumper armored cable, an optical fiber laser and a laser therapeutic device to alleviate the technical problems of large volume and heavy weight of the optical fiber laser in the prior art.

[0005] The utility model provides an optical fiber jumper armored cable, which comprises an optical fiber, a water vapor channel and a metal tube, wherein the optical fiber and the water vapor channel are arranged side by side in the metal tube, the optical fiber is used to receive and transmit laser, and the optical fiber comprises a gain optical fiber; one end of the water vapor channel is used to introduce water vapor, and the other end is used to output water vapor; the metal tube is also filled with a heat conductive material.

[0006] Preferably, both ends of the water vapor channel pass through the side wall of the metal tube at locations close to both ends respectively;

[0007] And / or, optical fiber connectors are respectively provided at both ends of the metal tube, and the optical fiber connectors are connected to both ends of the optical fiber.

[0008] Preferably, a sealing layer is provided on the outside of the metal tube.

[0009] Preferably, the sealing layer is made of thermoplastic rubber.

[0010] Preferably, the optical fiber further includes a high-reflection fiber grating and a low-reflection fiber grating, and the high-reflection fiber grating and the low-reflection fiber grating are respectively connected to two ends of the gain optical fiber.

[0011] Preferably, the input end face of the optical fiber is tapered;

[0012] And / or, the output end of the optical fiber is provided with an output end cap.

[0013] Preferably, the metal tube is a metal bellows;

[0014] And / or, the water vapor channel is a water pipe.

[0015] Preferably, the heat conductive material is wrapped around the optical fiber and the water vapor channel;

[0016] And / or, the heat-conducting material is flowing thermal grease or optical fiber thermal potting soft glue.

[0017] The utility model also provides a fiber laser, which comprises a pump light emission source and the above-mentioned fiber jumper armor cable, wherein the pump light emission source is connected to the fiber jumper armor cable.

[0018] The utility model also provides a laser therapeutic apparatus, which comprises a human-machine interaction module, a drive control module and the above-mentioned optical fiber laser, wherein the human-machine interaction module is connected to the optical fiber laser via the drive control module.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The fiber jumper armored cable integrates the gain fiber therein, so that the gain fiber does not need to be coiled in the housing of the fiber laser, which is beneficial to increasing the heat dissipation area and improving the heat dissipation performance of the gain fiber; at the same time, the heat generated by the gain fiber can be transferred to the water vapor (high-speed airflow entrained with water flow) flowing through the water vapor channel, and the water vapor in the water vapor channel is used to take away the heat emitted by the gain fiber to achieve the heat dissipation effect, and the metal tube and the heat-conducting material filled therein can play the role of heat conduction and heat dispersion, so that the heat generated by the gain fiber can be more evenly distributed in the heat-conducting material, and then, the water vapor in various parts of the water vapor channel can be fully utilized to increase the heat that can be absorbed by the water vapor, and improve the heat dissipation effect of the water vapor on the gain fiber. On this basis, the gain fiber heat dissipation module can be omitted, and the volume and weight of the fiber laser can be reduced.

[0021] In addition, the water flow entering the water vapor channel can be atomized under the action of high-speed airflow. The atomized water droplets can absorb laser energy and explode. The energy generated by the explosion can impact the tissue, and the water flow can carry away the diseased tissue washed away, thereby achieving the purpose of treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the structure of an optical fiber jumper armored cable provided in an embodiment of the utility model;

[0024] Figure 2 A schematic diagram of the structure of each layer of the optical fiber jumper armored cable provided in an embodiment of the utility model;

[0025] Figure 3 A schematic cross-sectional view of the optical fiber jumper armored cable provided in an embodiment of the utility model;

[0026] Figure 4 A schematic diagram of light propagation at the end face of the optical fiber input end of the optical fiber jumper armored cable provided in an embodiment of the utility model;

[0027] Figure 5 A schematic diagram of the structure of a fiber laser provided in an embodiment of the utility model;

[0028] Figure 6 A schematic diagram of the structure of a collimator in a fiber laser provided in an embodiment of the utility model;

[0029] Figure 7 Another structural schematic diagram of a collimator in a fiber laser provided in an embodiment of the utility model;

[0030] Figure 8 This is a schematic diagram of the structure of a laser therapy device provided in an embodiment of the utility model.

[0031] Description of reference numerals:

[0032] 100-housing; 110-first coupling joint;

[0033] 200- pump light emission source;

[0034] 300-Laser diode;

[0035] 400-fiber jumper armored cable; 410-high reflection fiber Bragg grating; 411-fiber connector; 420-gain fiber; 430-low reflection fiber Bragg grating; 431-output end cap; 440-optical fiber; 450-thermal conductive material; 460-metal tube; 470-sealing layer; 480-water vapor channel;

[0036] 500-photodiode;

[0037] 600-Dual-color mirror;

[0038] 700-collimating lens; 710-lens barrel; 711-snap connection structure; 712-threaded connection structure;

[0039] 800-Human-computer interaction module. DETAILED DESCRIPTION

[0040] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] The present invention will be further described in detail below through specific implementation examples in conjunction with the accompanying drawings.

[0042] The utility model embodiment provides an optical fiber jumper armored cable 400, such as Figure 1-3 As shown, it has an optical fiber 440, a water vapor channel 480 and a metal tube 460. The optical fiber 440 and the water vapor channel 480 are arranged side by side in the metal tube 460. The optical fiber 440 is used to receive and transmit laser, and the optical fiber 440 includes a gain fiber 420; one end of the water vapor channel 480 is used to allow water vapor to enter, and the other end is used to output water vapor; the metal tube 460 is also filled with a heat conductive material 450.

[0043] The optical fiber jumper armored cable 400 provided by the embodiment of the utility model integrates the gain optical fiber 420 therein, so that the gain optical fiber 420 does not need to be coiled in the housing of the optical fiber laser, which is beneficial to increase the heat dissipation area and improve the heat dissipation performance of the gain optical fiber 420; at the same time, the heat generated by the gain optical fiber 420 can be transferred to the water vapor (high-speed airflow entrained with water flow) flowing through the water vapor channel 480, and the water vapor in the water vapor channel 480 is used to take away the heat emitted by the gain optical fiber 420 to achieve the heat dissipation effect, and the metal tube 460 and the heat conductive material 450 filled therein can play the role of heat conduction and heat dispersion, so that the heat generated by the gain optical fiber 420 can be more evenly distributed in the heat conductive material 450, and then, the water vapor in various parts of the water vapor channel 480 can be fully utilized to increase the heat that can be absorbed by the water vapor, and improve the heat dissipation effect of the water vapor on the gain optical fiber 420. On this basis, the gain optical fiber heat dissipation module can be omitted, and the volume and weight of the optical fiber laser can be reduced.

[0044] The water flow entering the water vapor channel 480 can also be atomized under the action of the high-speed airflow. The atomized water droplets can absorb the laser energy and explode. The energy generated by the explosion can impact the tissue, and the water flow can carry away the damaged tissue washed away, thereby achieving the purpose of treatment.

[0045] In the embodiment of the utility model, Figure 1 As shown, the two ends of the water vapor channel 480 pass through the side wall of the metal tube 460 near the two ends; the two ends of the metal tube 460 are respectively provided with optical fiber connectors 411, and the optical fiber connectors 411 are connected to the two ends of the optical fiber 440. Specifically, the optical fiber connector 411 can be an SMA905 connector or an FC connector.

[0046] In the embodiment of the utility model, Figure 2-Figure 3 As shown, a sealing layer 470 is provided on the metal tube 460. Specifically, the sealing layer 470 may be made of thermoplastic rubber, such as TPU (thermoplastic polyurethane rubber).

[0047] See also Figure 2 and Figure 3The above-mentioned fiber jumper armor cable 400 may be provided with an optical fiber 440, a heat conductive material filling layer 450, a metal tube 460 and a sealing layer 470 in sequence from the inside to the outside, that is, the heat conductive material filling layer 450 is wrapped outside the optical fiber 440, the metal tube 460 is sleeved outside the heat conductive material filling layer 450, and the sealing layer 470 is wrapped outside the metal tube 460. A water pipe 480 for water flow may be provided in the metal tube 460. When working, the water flow in the metal tube 460 can be atomized under the action of the high-speed air flow, and the atomized water droplets can absorb the laser energy and explode. The energy generated by the explosion can impact the tissue, and the water flow can carry away the damaged tissue washed away, thereby achieving the purpose of treatment. It should be noted that the water vapor in the water pipe 480 can also absorb and take away the heat generated by the optical fiber 440, the metal tube 460 can achieve the effect of heat conduction and heat dispersion, the thermal conductive material filling layer 450 can protect the optical fiber 440 and perform heat conduction, and can increase the absorption effect of the water vapor in the water pipe 480 on the heat generated by the optical fiber 440, improve the heat dissipation effect of the optical fiber 440, and eliminate the gain optical fiber heat dissipation module; in addition, the sealing layer 470 can play a role of sealing protection.

[0048] In the embodiment of the utility model, Figure 1 As shown, the optical fiber 440 also includes a high-reflection fiber grating 410 and a low-reflection fiber grating 430, which are respectively connected to the two ends of the gain fiber 420. Among them, the high-reflection fiber grating 410 can highly transmit the pump light, almost completely transmit the pump light, and highly reflect the laser reflected by the low-reflection fiber grating, and the reflectivity of the laser can be set to be greater than 99%; the reflectivity of the low-reflection fiber grating 430 to the laser can be set to 5% to 20%, most of the light is transmitted and output, and the reflected light provides the signal laser for the resonant cavity, and the oscillation formed in the resonant cavity is enhanced. The high-reflection fiber grating 410 can be fused with the gain fiber 420.

[0049] In the embodiment of the utility model, the input end face of the optical fiber 440 is tapered, see Figure 4 (The arrow to the right indicates the pump light, and the arrow to the left indicates the signal laser). The fiber end face of the fiber connector 411 can be set to a cone, so that the pump light coupling can obtain a larger coupling area, reduce the light density, and extend the service life. The fiber connector 411 is made of a high-reflection fiber grating 410, and its fiber end face is set to a cone, which can solve the problem of end face reflection of the signal light leakage of the high-reflection fiber grating 410, and no laser is reflected back to the fiber resonant cavity, and the laser is more stable.

[0050] In the embodiment of the utility model, Figure 1 As shown, an output end cap 431 is provided at the output end of the optical fiber 440. The output end cap 431 is provided at the laser output end of the low-reflection fiber grating 430, so that the light density of the output end face can be reduced, the end face reflection can be reduced, and the optical cavity can be made more stable.

[0051] In the embodiment of the utility model, the metal tube 460 is a metal bellows, for example, the metal tube 460 can be a stainless steel bellows.

[0052] In the embodiment of the utility model, the water vapor channel 480 can be a water pipe.

[0053] In the embodiment of the utility model, the heat conductive material 450 is wrapped around the optical fiber 440 and the water vapor channel 480; specifically, the heat conductive material 450 can be flowing heat conductive silicone grease or optical fiber heat conductive potting soft glue.

[0054] The utility model also provides a fiber laser, such as Figure 5-Figure 7 As shown, the fiber laser includes a pump light emission source 200 and the above-mentioned fiber jumper armor cable 400, and the pump light emission source 200 is connected to the fiber jumper armor cable 400. Since the fiber laser includes the above-mentioned fiber jumper armor cable 400, it has all the advantages of the above-mentioned fiber jumper armor cable 400, which will not be repeated here.

[0055] The fiber laser also includes a housing 100 and a laser diode 300; a pump light emission source 200 and a laser diode 300 are integrated in the housing 100, and a first coupling joint 110 is installed in the housing 100, and the pump light emitted by the pump light emission source 200 and the aiming light emitted by the laser diode 300 can be coupled to the first coupling joint 110; a high-reflection fiber Bragg grating 410, a gain fiber 420 and a low-reflection fiber Bragg grating 430 arranged in sequence and interconnected along the laser output direction are integrated in the fiber jumper armor cable 400, and a second coupling joint (i.e., the above-mentioned fiber joint 411) is provided at the laser input end of the high-reflection fiber Bragg grating 410, and the first coupling joint 110 and the second coupling joint can be butt-coupled.

[0056] When in use, the pump light emitted by the pump light emission source 200 and the aiming light emitted by the laser diode 300 can be directly coupled into the optical fiber jumper cable 400 through the first coupling joint 110 and the second coupling joint, and transmitted along the high-reflection fiber grating 410, the gain fiber 420 and the low-reflection fiber grating 430 in the optical fiber jumper cable 400, that is, the coupling of the pump light and the aiming light is realized, thereby not only ensuring the completeness of the functions of the optical fiber laser, but also saving the multi-mode optical fiber, the pump combiner and the fusion step of the coupled output, thereby reducing the overall cost; in addition, on the basis of saving the multi-mode optical fiber and the pump combiner, the optical fiber optical path composed of the high-reflection fiber grating 410, the gain fiber 420 and the low-reflection fiber grating 430 are all arranged inside the optical fiber jumper cable 400, which is more conducive to heat dissipation than winding the gain fiber in the housing 100, and the gain fiber heat dissipation module can be reduced or even omitted, thereby greatly compressing the volume and weight of the optical fiber laser, which is particularly suitable for laser therapeutic devices with miniaturization requirements.

[0057] The coupling mode between the first coupling joint 110 and the second coupling joint is end face coupling. Specifically, the first coupling joint 110 and the second coupling joint can be butt-coupled in a detachable connection manner. Thus, during the debugging stage, an ordinary optical fiber of the same specification can be installed at the first coupling joint 110 instead of the optical fiber jumper armor cable 400. In this state, the coupling of the pump light emission source is adjusted until the pump light emitted by the pump light emission source 200 and the aiming light emitted by the laser diode 300 are coupled to the first coupling joint 110. After the debugging is completed, the ordinary optical fiber of the same specification is removed, and the second coupling joint of the optical fiber jumper armor cable 400 is butt-coupled with the first coupling joint 110. Thus, the pump light can be directly coupled into the optical fiber jumper armor cable 400 to realize pump coupling. This method will not cause loss to the optical fiber jumper armor cable 400 and the high-reflection fiber Bragg grating 410, gain fiber 420 and low-reflection fiber Bragg grating 430 therein during debugging, which is beneficial to prolonging the service life of the optical fiber jumper armor cable 400 and the high-reflection fiber Bragg grating 410, gain fiber 420 and low-reflection fiber Bragg grating 430 therein. Specifically, the first coupling connector 110 and the second coupling connector can be connected in a pluggable manner, which is easy to operate.

[0058] In the embodiment of the utility model, Figure 5 As shown, a photodiode 500 can also be installed in the housing 100. The signal laser reflected by the low-reflection fiber Bragg grating 430 can enter the housing 100 through the gain fiber 420, the high-reflection fiber Bragg grating 410, the second coupling joint and the first coupling joint 110, and is received by the photodiode 500 in the housing 100. Therefore, the photodiode 500 can monitor the power of the fiber laser in real time, and further, the fiber laser can be monitored and protected in real time.

[0059] Furthermore, if Figure 5As shown, a dichroic mirror 600 may also be installed in the housing 100, and the position of the dichroic mirror 600 only needs to meet the following requirements: the pump light and the aiming light can be input from one side of the dichroic mirror 600, and output from the other side and directed toward the first coupling connector 110; the dichroic mirror 600 can reflect the signal laser that is injected into the housing 100 through the first coupling connector 110 to the photodiode 500. Among them, the dichroic mirror 600 can have high transmittance of the pump light and the aiming light and low transmittance of the signal laser, so that most of the pump light and the aiming light can smoothly pass through the dichroic mirror 600 and be coupled to the first coupling joint 110; and the signal laser reflected by the low-reflection fiber grating 430 can be directed to the dichroic mirror 600 after entering the housing 100 from the first coupling joint 110, and be reflected by the dichroic mirror 600 to the photodiode 500, so that the photodiode 500 can monitor the laser power and protect the chip of the pump light emission source 200. In addition, compared with the traditional technology of setting a splitting component (such as a fiber beam splitter) in the optical path, or using a reflector in space to derive part of the laser to monitor the laser power, the fiber laser provided in this embodiment can reduce the component cost and reduce the space volume.

[0060] Specifically, the optical fiber connectors (the second coupling connector and the output end cap 431) at both ends of the optical fiber jumper cable 400 can be SMA905 connectors or various optical fiber connectors such as FC.

[0061] In the embodiment of the utility model, Figure 5 As shown, a collimator 700 may be further provided, and the collimator 700 is arranged opposite to the output end of the optical fiber jumper cable 400. The divergent light output from the output end of the optical fiber jumper cable 400 may be output as collimated laser after passing through the collimator 700, which is convenient for use.

[0062] See also Figure 6 and Figure 7 The collimator lens 700 can be set to a structure that can be detachably connected to the user's treatment handpiece, scanning handpiece or coupling module, which can be easily disassembled and disinfected. Specifically, a snap connection structure 711 or a threaded connection structure 712 can be set on the lens barrel 710 of the collimator lens 700, so that the collimator lens 700 is snap-connected or threadedly connected to the user's treatment handpiece, scanning handpiece or coupling module, which meets the detachable requirements and has high connection reliability.

[0063] By modulating the output of the pump light emission source 200, continuous or quasi-continuous laser output can be obtained; the selection of the fiber size determines the size of the output peak: for 10 / 130um fiber, the cladding size is 130um, the coupled maximum pump power is below 150W, and through pump pulse overshoot, a peak output close to 100W can be obtained; for optical fibers with a cladding size of 250um or larger than 400um, higher power can be obtained. The frequency and pulse width of the pump light emission source 200 are modulated to obtain the target laser frequency and pulse width, with a pulse width range of 100us-CW and a frequency of 1Hz-5kHz.

[0064] In this embodiment, the wavelength of the pump laser diode can be selected from 793nm, 915nm, 940nm, 976nm, etc. according to the target wavelength and the type of gain medium; it is suitable for ytterbium-doped fiber, thulium-doped fiber, erbium-ytterbium co-doped gain fiber, etc.; laser wavelengths such as 1064nm, 1030nm, 1560nm, 1900 to 2100nm can be obtained.

[0065] See also Figure 8 This embodiment also provides a laser therapy device, which includes a human-computer interaction module 800, a drive control module and the above-mentioned fiber laser, and the human-computer interaction module 800 is connected to the fiber laser through the drive control module.

[0066] The laser therapy device provided in this embodiment has all the advantages of the above-mentioned fiber laser because it has the above-mentioned fiber laser. It not only ensures the completeness of the functions of the fiber laser, but also reduces the overall cost and greatly compresses the volume and weight of the fiber laser. It is especially suitable for laser therapy devices with miniaturization requirements.

[0067] The power of the laser therapy device provided in this embodiment is medium to low power, with an average power below 15W and a peak power that can reach hundreds of watts.

[0068] In the description of the present invention, it should be noted that the terms "up", "down", "left", "right", "front", "back", "vertical", "horizontal", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0069] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An optical fiber jumper armored cable, characterized in that: The optical fiber jumper armored cable comprises an optical fiber (440), a water vapor channel (480) and a metal tube (460); the optical fiber (440) and the water vapor channel (480) are arranged side by side in the metal tube (460); the optical fiber (440) is used to receive and transmit laser light, and the optical fiber (440) includes a gain optical fiber (420); one end of the water vapor channel (480) is used to allow water vapor to enter, and the other end is used to output water vapor; the metal tube (460) is also filled with a heat conductive material (450).

2. The optical fiber jumper armored cable according to claim 1, characterized in that: The two ends of the water vapor channel (480) respectively pass through the side wall of the metal tube (460) at locations close to the two ends; And / or, optical fiber connectors (411) are respectively provided at both ends of the metal tube (460), and the optical fiber connectors (411) are connected to both ends of the optical fiber (440).

3. The optical fiber jumper armored cable according to claim 1, characterized in that: The metal tube (460) is provided with a sealing layer (470) on the outside.

4. The optical fiber jumper armored cable according to claim 3, characterized in that: The sealing layer (470) is made of thermoplastic rubber.

5. The optical fiber jumper armored cable according to claim 1, characterized in that: The optical fiber (440) further comprises a high-reflection optical fiber grating (410) and a low-reflection optical fiber grating (430), and the high-reflection optical fiber grating (410) and the low-reflection optical fiber grating (430) are respectively connected to two ends of the gain optical fiber (420).

6. The optical fiber jumper armored cable according to claim 5, characterized in that: The input end face of the optical fiber (440) is tapered; And / or, the output end of the optical fiber (440) is provided with an output end cap (431).

7. The optical fiber jumper armored cable according to claim 1, characterized in that: The metal tube (460) is a metal bellows; And / or, the water vapor channel (480) is a water pipe.

8. The optical fiber jumper armored cable according to any one of claims 1 to 7, characterized in that: The heat conductive material is wrapped around the optical fiber (440) and the water vapor channel (480); And / or, the heat-conducting material is flowing thermal grease or optical fiber thermal potting soft glue.

9. A fiber laser, characterized in that: It comprises a pump light emission source (200) and the optical fiber jumper armored cable (400) according to any one of claims 1 to 8, wherein the pump light emission source (200) is connected to the optical fiber jumper armored cable (400).

10. A laser therapeutic apparatus, characterized in that: It comprises a human-machine interaction module (800), a drive control module and the optical fiber laser according to claim 9, wherein the human-machine interaction module (800) is connected to the optical fiber laser via the drive control module.

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