198 results about "Buffer (optical fiber)" patented technology

The invention discloses a kilometer deep well roadway toughness regulation and control supporting system and a dynamic design method, and belongs to the field of deep well roadway supporting. The supporting system comprises a multi-layer collaborative structure and an intelligent regulation and control module, the multi-layer collaborative structure sequentially comprises a shape memory alloy energy absorption layer used for resisting impact loads and a gradient pore foam metal buffer layer used for energy grading dissipation from inside to outside, and the multi-layer collaborative structure is connected with roadway surrounding rock in an anchoring mode through an anchor rod anchoring structure; the intelligent regulation and control module comprises a distributed optical fiber sensor array used for monitoring surrounding environment signals of surrounding rock in real time, an electrostriction driver used for regulating and controlling the rigidity of the multi-layer cooperative structure and a multi-channel data fusion terminal used for achieving underground and surface data transmission synchronization. By the adoption of the kilometer deep well roadway toughness regulation and control supporting system and the dynamic design method, the problems that a traditional supporting mode is too high in material rigidity, lacks dynamic regulation and control capacity and is insufficient in impact toughness can be solved.

The invention provides a heterogeneous integrated sub-wavelength structure end face coupler adaptive to a single-mode optical fiber and a preparation method of the heterogeneous integrated sub-wavelength structure end face coupler, and relates to the technical field of integrated optics. The coupler comprises a substrate, an insulating layer, a waveguide layer and a cladding from bottom to top. The waveguide layer comprises an upper lithium niobate ridge waveguide and a lower lithium niobate ridge waveguide, the lower waveguide is wider than the upper waveguide, and the upper waveguide is used for connecting an external waveguide; the heterogeneous integrated coupling region comprises a silicon nitride strip conical waveguide which forms directional coupling with the lower-layer lithium niobate waveguide, so that adiabatic transfer of a light field is realized; the sub-wavelength grating regulation and control region sequentially comprises a silicon nitride tapered waveguide and sub-wavelength grating combination section, a width gradually-changing grating section and an equal-width buffer grating section. The whole structure is symmetrical about the central axis. Through the multi-section adiabatic transformation and heterogeneous integration design, efficient expansion of a mode field is achieved, the coupling efficiency with a single-mode fiber is improved, and the advantages of being insensitive to polarization, good in process compatibility and suitable for high-density integration are achieved.

The present disclosure provides a hybrid optical fiber comprising a hollow core fiber section having a first end and a second end, one or more end fiber sections coupled to at least one end of the hollow core fiber section, and optionally a buffer tube encapsulating at least the hollow core fiber section. A hybrid optical cable may include a sheathing and two or more such hybrid optical fibers. Methods may include fabricating hybrid optical fibers by coupling glass core fiber sections to hollow core fiber sections, winding on a reel, and testing. Another method may involve installing and coupling hybrid optical fibers based on inspection results. The hollow core fiber sections may comprise various designs including anti-resonant, photonic bandgap, or nested structures.

Optical fibers are disposed within v-grooves of an optical fiber attachment region of a photonic integrated chip (PIC). A structural adhesive is disposed over a first portion of the optical fibers within the optical fiber attachment region of the PIC without being disposed over a second portion of the optical fibers within the optical fiber attachment region of the PIC. An optical index matching adhesive is disposed over the second portion of the optical fibers within the optical fiber attachment region of the PIC. A buffer structure is disposed on the structural adhesive and the optical index matching adhesive as they are cured. The buffer structure is removed. The optical fibers, the structural adhesive, and the optical index matching adhesive have a collective vertical height above a top surface of the PIC that is less than a vertical height of flip-chip attachment structures on the top surface of the PIC.

The invention relates to the technical field of cables, in particular to a strong-acid-resistant and high-temperature-resistant silicone rubber cable and a processing technology thereof.The strong-acid-resistant and high-temperature-resistant silicone rubber cable sequentially comprises a multi-core insulating wire core, a filling layer, a cabling cable core wrapping tape, a shielding layer, an optical fiber unit, a buffer layer, a fluorocarbon protective layer and a corrosion-resistant and high-temperature-resistant sheath layer from inside to outside. Through the multi-layer protection design of the conductor anticorrosion priming coat, the insulating layer fluorosilicone resin protection layer, the filling layer-wrapping tape-buffer layer ceramic silicone rubber synergistic protection, the hydrophobic anti-permeation interlayer and the sheath layer acid-resistant filler, a compact acid-resistant protection system is formed, the cable is soaked in sulfuric acid / hydrochloric acid with the concentration of 50% and the temperature of 250 DEG C for 720 h, and the cable has the good anti-corrosion performance. The sheath layer and the wrapping tape do not crack, swell or fall off, the insulation performance is not obviously reduced, the problem that an existing cable is prone to aging and damage under strong acid is solved, double corrosion prevention of the conductor is achieved, and strong acid corrosion is thoroughly avoided.

The invention discloses a high-flame-retardant temperature-resistant corrosion-resistant optical fiber composite cable and a preparation method thereof, and belongs to the technical field of cable manufacturing, and the high-flame-retardant temperature-resistant corrosion-resistant optical fiber composite cable sequentially comprises an optical fiber unit, a conductor layer, an insulating layer, a shielding layer, a corrosion-resistant layer and a sheath layer from inside to outside. The optical fiber unit adopts a ceramic silicone rubber buffer layer; the conductor layer is a nickel-plated copper alloy stranded wire, and the oxidation resistance is enhanced through nano titanium dioxide sol treatment; the insulating layer is of a three-layer co-extrusion structure; the shielding layer adopts an aluminum-plastic composite belt and tinned copper wire braided composite structure; the anti-corrosion layer is a polytetrafluoroethylene film subjected to plasma treatment; the sheath layer is made of two-component ceramic silicone rubber, is flexible after being vulcanized at normal temperature, and is converted into a ceramic body at high temperature. According to the optical fiber composite cable, through the collaborative design of a multi-layer structure, the performance of excellent continuous use stability, high salt mist environment corrosion resistance and the like is achieved, the optical fiber composite cable is suitable for high-temperature, corrosion, fire and other severe environments, and the safety and durability of the composite cable are remarkably improved.

The invention provides an STM32-based anaerobic fermentation biogas slurry near infrared transmission spectrum data on-line acquisition device. The device comprises a backwashing anti-blocking biogas slurry filtering system and an on-line liquid near infrared spectrum acquisition system, according to the system, a three-stage filtering mechanism is adopted, an STM32 microcontroller is taken as a core, a miniature optical fiber spectrometer and a halogen tungsten lamp light source are integrated to construct a compact transmission light path, and solid particles in biogas slurry are effectively removed by combining a backwashing anti-blocking T-shaped three-way filter, a double-buffer-bottle liquid level control mechanism and a PID liquid level control strategy; the cavitation phenomenon of a biogas slurry sampling pipeline is inhibited, the stability of sample conveying and the repeatability of spectrum collection are remarkably improved, and an efficient and portable online detection solution is provided for anaerobic fermentation process control; reliable hardware support is provided for application of a near infrared spectrum detection technology in a complex anaerobic fermentation environment.

The invention discloses a cone-ball coupled cavity photoacoustic gas sensor for detecting acetylene dissolved in transformer oil, relates to the field of testing or analyzing materials by using an optical means, and solves the problem that miniaturization and high sensitivity of an existing photoacoustic sensor are difficult to consider at the same time. An optical fiber collimator is arranged at one end of the shell, a sonic sensor is arranged at the other end of the shell, a buffer cavity, a first resonant cavity and a second resonant cavity are sequentially arranged in the shell between the optical fiber collimator and the sonic sensor, the end of the optical fiber collimator is located in the buffer cavity, and the center lines of the optical fiber collimator, the buffer cavity, the resonant cavities and the sonic sensor coincide. The buffer cavity is cylindrical, an air inlet and an air outlet are formed in the side wall of the buffer cavity, the first resonant cavity is in a circular truncated cone shape, and the second resonant cavity is in a segment shape. The buffer cavity, the first resonant cavity and the second resonant cavity are coupled to form a cylindrical-conical-spherical coupled cavity, so that limitation and focusing of acoustic energy are realized, and the amplitude of a photoacoustic signal is enhanced.

The present disclosure provides a micro sheath buffer tube with rollable optical fiber ribbons for optical fiber cable to reduce the overall cable diameter. The buffer tube indicates one or more subunits, a micro sheath layer and a plurality of water swellable yarns. The one or more subunits encloses a plurality of optical fiber ribbons. Each optical fiber ribbon of the plurality of optical fiber ribbons includes 12 optical fibers. Further, each of a plurality of optical fibers is a colored optical fiber. In addition, the micro sheath layer surrounds the one or more subunits. Furthermore, the one or more subunits has a coating layer of low smoke zero halogen material.

The invention provides a biological safe and efficient fattening field, and belongs to the technical field of livestock breeding. A negative pressure isolation belt is formed by the outer shell and the inner shell, so that external air is forced to flow through the visible light catalysis quantum dot layer to realize pathogen inactivation while the gas flow rate is controlled. An optical fiber sensing siphon is arranged below the slatted floor to monitor sewage pathogenic bacteria in real time. Live pigs enter the house through the third-stage buffer channel. The system breaks through the limitation of a traditional physical barrier, full-path blocking of a transmission chain of epidemic diseases such as African swine fever is achieved, and the biological safety level is improved by two orders of magnitude.

The utility model discloses an optical fiber drawing coating die through hole tool, which comprises a die through hole guider through hole needle and a die, the top of the small end of the die through hole guider is provided with a through hole needle precise through hole, and the through hole needle is in precise sliding fit with the through hole needle precise through hole of the die through hole guider. The die is installed through an inner hole at the large end of the die through hole guider, is in precise sliding fit with the inner hole and is provided with a positioning structure, so that accurate and stable installation is ensured, a through hole needle is inserted through a through hole needle precise through hole at the top of the small end of the die through hole guider, is in precise sliding fit with the guider and is assisted by a needle hole guide sleeve, and die orifice optical fibers can be automatically and accurately aligned; the alignment accuracy and the knocking fixity are improved, the production efficiency is improved, meanwhile, the accurate positioning structure prevents the die orifice from being damaged due to alignment deviation and knocking deviation, the elastic buffer structure prevents the through hole from damaging the die, the die damage risk is greatly reduced, the die loss is reduced, the production cost is saved, and considerable economic benefits are created for optical fiber production enterprises.

The invention relates to the technical field of optical fiber adapters, in particular to a single-mode optical fiber adaptive connection protection structure of an SLD depolarization light source. The optical fiber adapter comprises an optical fiber adapter body and further comprises a protection tensile mechanism used for conducting overheating protection on the optical fiber adapter body and buffering when the optical fiber adapter body is stretched by external force. An outer connector is inserted into an outer connector, air bags I are extruded when the outer connector is inserted, so that air in the air bags I flows into an air bag II, the air bag II drives a limiting rod, clamping blocks I and an adjusting rod to vertically move through the interior of a driving block, and the two clamping blocks I are attached to a connecting line; the magnetic blocks fixedly installed in the two first clamping blocks provide magnetic force for auxiliary fixation, and the two second clamping blocks are clamped in the reserved grooves formed in the surface of the outer connector, so that the tensile resistance of the connection position of the optical fiber adapter is further improved, disconnection of the outer connector and the outer interface caused by external force is avoided, and the service life of the optical fiber adapter is prolonged. And the use stability of the optical fiber adapter is improved.

1. Name of the product in this design: Fiber Optic Hot Stripping Clamps (HC-6N). 2. Application of this design: This design is used to heat and soften the fiber buffer layer and coating layer, reducing the stress on the fiber during stripping and preventing damage to the fiber. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention relates to the technical field of cables, solves the problem that an existing aerospace cable is insufficient in vibration fatigue resistance and high-energy radiation resistance, and particularly discloses a multi-layer shielding optical fiber composite aerospace cable and a preparation method thereof.The multi-layer shielding optical fiber composite aerospace cable comprises an insulating layer, an inner shielding layer, a buffer bonding layer and an outer shielding layer which are sequentially arranged from inside to outside; a conductor core and an optical fiber bundle are arranged in the insulating layer, and the insulating layer comprises a bonding transition layer, a core insulating layer and an anti-radiation protection layer from inside to outside; the inner shielding layer comprises a nano-silver conductive film and a silicone rubber elastic layer, and the nano-silver conductive film is arranged on the inner side of the silicone rubber elastic layer; the outer shielding layer is provided with a nickel-copper alloy wire woven mesh; and the buffer bonding layer is provided with a modified polyimide adhesive layer. According to the optical fiber composite aerospace cable and the preparation process thereof, the shielding, buffering and interlayer bonding performance of the cable is guaranteed through control over the inner shielding layer, the buffering bonding layer and related preparation parameters, and the optical fiber composite aerospace cable adapts to aerospace application requirements.

An optical fiber cable comprises at least one hollow-core fiber having a tight buffer formed around the hollow-core fiber. The tight buffer has a multi-layer construction whereby an inner layer is tightly formed around an outer surface of the hollow-core fiber and an outer layer is tightly formed around the inner layer. The inner layer is formed of a soft material having a low elastic modulus, whereas the outer layer is formed of a material having a higher elastic modulus than the inner layer.

A kind of board card, cabinet, clock distribution circuit and system applied to quantum computing belong to quantum computing technical field;High-precision clock source is used to synchronize output high-speed clock signal and low-speed clock signal, ensure the synchronization of low-speed reference clock and high-speed sampling clock of multiple cabinets, multiple board cards;Independent clock distribution board card is used, high-speed clock electrical signal is converted into high-speed clock optical signal by microwave modulation light source, after optical power amplification, optical beam splitter, it is distributed to the clock distribution board card of each cabinet by optical fiber, low-speed clock electrical signal is connected to the clock distribution board card of each cabinet by radio frequency cable;High-speed clock optical signal, low-speed clock electrical signal are input to clock distribution board card, then by clock distribution board card distribution to each control board card, reduce the number of PD detector, Buffer, PLL and amplification filtering module on clock signal transmission path, reduce cabinet space use pressure and cost.

The utility model relates to the technical field of micro-lens coupling, in particular to a micro-lens coupling device which comprises an adjusting table, a turnover coupling mechanism is arranged at the top of the adjusting table and comprises a clamping table arranged on the surface of the adjusting table, a hidden groove is formed in the left side of the clamping table, and a turnover plate is hinged to the inner side wall of the hidden groove. A fixing plate is fixedly connected to the inner side wall of the overturning plate, a sliding seat is slidably connected to the interior of the fixing plate, an arc-shaped groove is formed in the inner side of the sliding seat, the outer side wall of the sliding seat is sleeved with a buffer spring, the buffer spring is fixedly connected to the back side of the fixing plate, and an electric telescopic rod is fixedly connected to the back side of the fixing plate; according to the utility model, the sliding seat is accommodated through the hidden groove, so that parts such as the sliding seat are prevented from influencing light path focusing, the pressure is dispersed more uniformly by utilizing the matching of the extrusion block and the fixed plate during coupling, and the pressure of the electric telescopic rod is buffered, so that the damage of the optical fiber and the micro lens caused by overlarge pressure is avoided.

The invention belongs to the technical field of communication transmission optical cables, and particularly relates to a vehicle-mounted thermal shock resistant communication optical cable and a preparation method thereof. The optical cable comprises an optical unit, a low-expansion braid layer, a heat conduction buffer layer and a functional sheath from inside to outside. The low-expansion braid layer is formed by weaving ceramic fibers and aramid fibers in a mixed mode and can generate radial shrinkage to restrain thermal deformation of the optical cable when heated. The heat-conducting buffer layer is formed by dipping the woven layer in a suspension prepared by mixing ceramic powder and polyacrylic acid and curing, and forms an integrated composite structure with the woven layer, so that a three-dimensional heat-conducting network can be constructed to realize efficient heat conduction and stress buffering; the functional sheath is formed by mixing, extruding and foaming sheath matrix resin and graphite nanosheets, and a micro-slip interface formed by the graphite nanosheets is utilized to dissipate vibration energy and assist in heat dissipation. The three components cooperate to form a thermal-induced shrinkage-heat conduction buffer-vibration dissipation thermal-vibration-resistant system, so that the problems of sheath cracking and signal attenuation in a vehicle-mounted thermal-vibration environment are effectively solved, and the long-term reliability of the optical cable is remarkably improved.

The utility model relates to optical fiber detection equipment technical field, especially optical fiber protection kit of inner pressure collection platform, the utility model discloses a bottom fixed interface, clamping groove, deposit mouth, detection flow channel, joint suite, linear flow channel, open mouth and protection cover, clamping groove is opened in bottom fixed interface top, deposit mouth is opened in the inner wall of clamping groove, and detection flow channel is penetrated in the bottom of bottom fixed interface, and joint suite is located in bottom fixed interface top, and the outer edge of joint suite is matched with the inner diameter of clamping groove, and linear flow channel is penetrated in the center axis of joint suite, and open mouth is opened in the bottom of linear flow channel, and the bottom of protection cover is placed in deposit mouth, and protection cover is the conical shape of upper narrow and lower wide, and protection cover is made of elastic plastic material, and joint suite is compressed and tight protection kit through open mouth, and the inner wall of sealed flow channel is close to the outer surface of optical fiber, forms pressure buffer area, when the container generates high pressure, and protection cover can carry out pressure buffering, and it is convenient for the data acquisition of optical fiber under various pressures.

The utility model relates to the technical field of welding devices, and discloses an optical fiber sensor alignment welding device, which comprises a bottom plate, a support frame and an alignment welding assembly, the alignment welding assembly is arranged at the top of the bottom plate, the support frame is arranged at the top of the bottom plate, a second motor is fixedly connected in the support frame, and the second motor is fixedly connected in the bottom plate. A connecting block is slidably connected into the supporting frame, a positioning plate is fixedly connected to the top of the connecting block, the positioning plate is slidably connected into the supporting frame, a buffering pad is fixedly connected to the inner side of the positioning plate, and the buffering pad slides in the supporting frame through the connecting block. The second motor is started to drive the two positioning plates to clamp and fix the PCB, and the buffer pad can play a role in buffering, so that the edge of the PCB is prevented from being damaged, the clamping efficiency is improved, the welding position of the optical fiber sensor is prevented from deviating, and the alignment precision during welding of the optical fiber sensor is improved.

An optical fiber cable includes a central element, extending along a longitudinal axis of the optical fiber cable, and a plurality of routable subunits, each routable subunit having a rigidly stranded ribbon stack and a tight buffer layer surrounding the ribbon stack, wherein the subunits are SZ-stranded around the central element to form a cable core. A binder film continuously and contiguously surrounds the plurality of routable subunits along the longitudinal axis and a cable sheath continuously and contiguously surrounds the binder film along the longitudinal axis, wherein the cable sheath has an inside surface and an outside surface, the inside surface defining an elliptical shape and the outside surface defining a generally circular shape.

The invention provides a fiber drawing furnace air pressure compensation system, a multistage micropore sealing device and a control method. The multistage micropore sealing device comprises a sealing sleeve, a hollow channel is formed in the sealing sleeve and used for optical fibers to penetrate through, the hollow channel comprises an upper channel, at least two air blowing channels and a lower channel, every two adjacent air blowing channels are communicated through a buffer channel, and a plurality of air outlet holes are formed in the side walls of the air blowing channels in the circumferential direction. A hollow air inlet chamber is formed between the side wall of the hollow channel and the outer side wall of the sealing sleeve, an air inlet hole communicated with the air inlet chamber is formed in the outer side wall of the sealing sleeve, and air flow introduced from the air inlet hole flows out through the air outlet hole after passing through the air inlet chamber so as to seal the optical fiber in the hollow channel. The multi-stage micropore sealing device has strong homogenization capability on uneven local airflow, and can ensure the uniformity and stability of an outlet air curtain even if the eccentricity degree of the optical fiber preform is high, so that the problem of airflow disturbance caused by offset of the preform is solved.

The utility model relates to the field of fluorescence spectrophotometer equipment, in particular to a novel fluorescence spectrophotometer optical fiber fixing support which comprises a base and a clamping jaw, a limiting seat is fixedly arranged at the top end of the base, a clamping block is movably connected to the top end of the limiting seat, a guide rod is connected to the top end of the clamping block in a threaded mode, and a sleeve is arranged on the outer surface of the guide rod in a sleeved mode. The clamping jaw is fixedly arranged on the side wall of the sleeve, a clamping groove is formed in the side wall of the clamping jaw, and a protective pad is fixedly arranged on the inner side wall of the clamping groove; compared with a traditional optical fiber fixing support of the fluorescence spectrophotometer, the stability of movement of the clamping block in the direction is improved through cooperation of the base, the limiting base, the clamping block and the buffering assembly, and vibration energy of the base can be converted into internal energy to be consumed through cooperation of the bottom plate, the spring, the damper and the top plate; and the heat conduction sheet and the bottom plate are matched to improve the heat transmission efficiency, so that the vibration influence on the guide rod, the sleeve and the clamping jaw is reduced, the optical fiber clamping stability is improved, and the signal transmission stability is improved.

The application discloses a sensing and communication integrated composite optical cable and a preparation method thereof. The optical cable comprises, from outside to inside, an outer sheath, a buffer layer, a filling layer, an armored layer and a cable core. The cable core comprises three kinds of optical fiber units with different functions. The application integrates and optimally arranges a communication unit for high-speed data communication, a quasi-distributed sensing unit for quasi-distributed high-precision monitoring and a full-distributed sensing unit for full-distributed field monitoring, so that the wiring, space, weight and cost are greatly reduced. The laser-welded rhombic mesh stainless steel belt is used as the armored layer, the mesh allows the adhesive to penetrate and solidify, and mechanical interlocking anchoring with the structure to be measured is formed. The boron nitride nanosheet-doped high-thermal-conductivity silicon gel is used as the filling layer, and a three-dimensional thermal conduction network wrapping the optical fiber is formed. The integrated nitinol shape memory alloy wire with a preset phase change temperature is mixed with aramid to form a buffer layer that can be actively tightened, and the optical cable is endowed with intelligent active protection capability under extreme working conditions.

The utility model discloses a multi-interface optical fiber patch cord with buffer and extrusion prevention, which relates to the technical field of optical fiber patch cords, and comprises a patch cord body, an interface mounting plate, an interface mechanism arranged on the interface mounting plate, a mounting mechanism arranged on the patch cord body, a first fixing mechanism arranged on the mounting mechanism, a clamping groove, a sliding groove and a limiting column, the second fixing mechanism is arranged in the sliding groove, and the buffering mechanism is arranged on the mounting mechanism; through the cooperation between the first fixing mechanism and the mounting mechanism, the first air bag is used for replacing a spring, a sliding block and other large-size mechanical assemblies, so that the overall size is reduced, and the space is saved; through the cooperation between the second fixing mechanism and the buffering mechanism, the number of additional fixing parts is reduced while the fixing and buffering effects are achieved, the size is further reduced, and therefore the fixing device is suitable for being installed in the narrow environment.

The invention relates to a high-modulation-efficiency phase modulator based on a silicon nitride-lithium niobate waveguide. The modulator comprises an optical transmission unit and an electric transmission unit, the optical transmission unit comprises a quartz substrate layer, a silicon dioxide buffer layer arranged above the quartz substrate layer, a composite waveguide arranged above the middle position of the silicon dioxide buffer layer, and a silicon dioxide cladding covering the outer side of the composite waveguide; the electric transmission unit comprises a metal traveling wave electrode, and the metal traveling wave electrode adopts an embedded double-layer capacitor microstructure load traveling wave electrode. By optimizing the design of the electrode structure and the waveguide structure, the modulation efficiency is remarkably improved, broadband response and low optical loss are considered at the same time, and the device is suitable for application scenes sensitive to phase modulation efficiency and power consumption, such as high-speed optical fiber communication, coherent optical transmission systems, optical phased arrays and quantum optical experiments.

The utility model discloses a high speed wide spectrum response photoelectric detector, comprising a multi-Pi n butterfly tube shell and a buffer assembly, the lower end of the multi-Pi n butterfly tube shell is provided with the buffer assembly used for buffering the multi-Pi n butterfly tube shell, the buffer assembly comprises a buffer plate, an upper installation block, a spring buffer, a lower installation block, a support plate and a limit assembly, the lower end of the multi-Pi n butterfly-shaped tube shell is fixedly connected with a buffer plate, the spring buffer is installed through an upper installation block and a lower installation block, and the upper installation block and the lower installation block are installed through the supporting plate and the buffer plate respectively. External vibration energy is absorbed, the axial displacement of the optical fiber end face and the optical chip is reduced, the stability of signal transmission is enhanced, meanwhile, the buffer assembly is of a quick release structure, the buffer assembly is convenient to replace, and detection work is convenient to carry out.

The utility model discloses an anti-bending optical fiber communication quick connector, which belongs to the technical field of optical fiber communication connectors and comprises a connector assembly, the connector assembly comprises a connector shell, an optical fiber cable and a ceramic pin, the optical fiber cable and the ceramic pin are centripetally inserted from two ends of the connector shell respectively, and a telescopic support positioning plate is fittingly inserted into each insertion port. The ends, away from the connector shell, of the two telescopic supporting and positioning plates are fixedly provided with anti-bending movable supporting frame plates, stress buffering assemblies are symmetrically arranged on the outer walls of the two symmetrical sides of the connector shell, and the outer walls of the other two sides of the connector shell are each provided with a dynamic locking structure for locking and loosening the positions of the anti-bending movable supporting frame plates. According to the utility model, the durability and the service life of the optical fiber cable are improved, and signal transmission interruption or quality reduction caused by bending of the optical fiber cable can be effectively avoided especially in a high-risk operation environment or an occasion requiring frequent plugging and unplugging.

The invention relates to the technical field of optical fiber communication, and discloses a multi-optical-fiber composite optical cable which is characterized in that a water-blocking tape, a woven tape, a buffer layer, a metal tape and an outer sheath are sequentially arranged on the outer side of a cable rack module; the central reinforcing piece penetrates through the axis position of the framework and is used for providing mechanical support; the framework is provided with a plurality of placing grooves in the circumferential direction, and the placing grooves are used for integrating a G655 optical fiber, a G652D optical fiber and a power line respectively, providing power support and having the advantages of the two optical fibers. Rib marks are used for distinguishing identification and positioning of contents in the placing grooves, multiple units cooperate to meet the requirement for synchronous transmission of optical fiber signals and electric signals, construction difficulty and time cost are reduced, and laying efficiency is improved. When the optical cable is laterally pressed, energy is absorbed through deformation of the honeycomb structure of the buffer layer, and the braid layer, the buffer layer and the metal belt are arranged on the inner side of the outer sheath and jointly resist signal interference, so that compatibility and adaptability of different optical fibers in the optical cable are improved, and transmission stability and communication quality of optical fiber signals and electric signals are ensured.

The utility model relates to the technical field of optical fiber auxiliary connecting equipment, and discloses a laser optical fiber anti-bending auxiliary connecting device which comprises a bent pipe, the two ends of the bent pipe are communicated with protective straight pipes, and each protective straight pipe is composed of a hard pipeline and a buffer sleeve in the hard pipeline. The diameter of the inner side of the bent pipe and the diameter of the inner side of the protective straight pipes are matched with the outer diameter of a laser optical fiber, an elastic pressing assembly capable of conducting limit bending alarm is connected between the two protective straight pipes, and an adjusting assembly capable of adjusting the gap between the two protective straight pipes is arranged in the elastic pressing assembly. The two ends of the elastic pressing assembly are fixedly and slidably connected with the two protective straight pipes respectively, and a tension buffering assembly is arranged on the side, fixedly connected with the elastic pressing assembly, of each protective straight pipe. The laser optical fiber anti-bending auxiliary connecting device has the advantage that irreversible damage caused by bending or extrusion of the optical fiber can be effectively prevented.