Abstract: A flexible cable mounting system has one or more brackets. The flexible cable mounting system has an elongated surface affixed to the one or more brackets and configured to guide one or more cables generally parallel along the elongated surface. The elongated surface has a first portion having a generally linear profile. The elongated surface has a second portion having a generally linear profile. The elongated surface has a third portion disposed between the first portion and the second portion. The third portion is flexibly configured to vary an angle formed between the first portion relative to the second portion.

Abstract: A fire-retardant material comprising from 25 to 50 wt % base oil, from 0.5 to 2.5 wt % polymer, from 0.1 to 1.0 wt % antioxidant, and from 50 to 75 wt % flame retardant.

Abstract: The present disclosure describes apparatuses and methods for separating and installing optical fibers into furcation tubing. A fiber optic furcation assembly can include a fan-out structure. The fan out structure can include a conduit, and the conduit can extend from a first face of the fan-out structure to an opposing second face of the fan-out structure. The fiber optic furcation assembly can also include a furcation tube. The furcation tube can be positioned within the conduit, and the furcation tube can extend to a terminal end beyond the second face of the fan-out structure. The fiber optic furcation assembly can also include a fiber pull. The fiber pull can be positioned within the furcation tube, and the fiber pull can protrude in a first portion beyond the first face of the fan-out structure and the fiber pull can protrude in a second portion beyond the terminal end of the furcation tube, and the fiber optic furcation assembly can also include an attachment structure.

Abstract: A gas diffusion layer for a metal-air battery, the gas diffusion layer including: a porous layer including non-conductive fiber structures, a conductive carbon layer including a carbon material that is disposed on a surface of a non-conductive fiber structure of the plurality of non-conductive fiber structures.

Abstract: An object of the present invention is to provide a yarn having a core-sheath structure, in which yarn the delamination between the core and the sheath can be inhibited, and a method of producing the same. Present invention provides a yarn having a core-sheath structure including a core composed of a polyamide and a sheath composed of a fluororesin, wherein the fluororesin constituting the sheath contains an adhesive functional group and has a melting point of from 220 to 250° C.

Abstract: Embodiments of the disclosure relate to an optical fiber cable. The optical fiber cable includes a cable jacket having a first inner surface and a first outer surface. The first inner surface defines a central bore along a longitudinal axis of the optical fiber cable. The optical fiber cable also includes optical fibers disposed within the central bore and a buffer tube surrounding the optical fibers. The buffer tube has a second inner surface and a second outer surface. The optical fiber cable also includes an armor layer disposed between the first inner surface of the cable jacket and the second outer surface of the buffer tube and a water-blocking adhesive disposed between the armor layer and the first outer surface of the buffer tube. The water-blocking adhesive extends along the longitudinal axis of the optical fiber cable and around a circumference of the buffer tube.

Abstract: An optical fiber ring interferometer is provided, which is based on a common light path for two or more light beam pairs preferably originated from two or more light sources of a substantially different spectrum or from a single light source split spectrum and whereas each light beam of a specific pair is propagating in relative opposite directions, wherein at least one pair of light beams is utilized to detect acousto-mechanical events and to provide information regarding location and other characteristics of detected environmental disturbance.

Abstract: A sealed structure (e.g., sealing module, sealing projection, etc.) transitions the direction of one or more cables passing through the structure. Sealant (e.g., a gel block) is disposed within the structure to seal one or more cables extending along a transition path within the sealed structure. Ducts and/or cables may be anchored to the sealed structure. The sealed structure may be mechanically secured to a closure at a selected rotational orientation.

Abstract: A method is provided for determining temperature changes of an optical fibre having Fiber Bragg Grating patterns provided in at least one portion of the optical fibre. The method involves: emitting light into the optical fibre in a first direction from a first detector arrangement, receiving reflections from the patterns of such emitted light by the first detector arrangement, and processing the reflections for determining a current temperature change related to the optical fibre; and on the basis of predetermined criteria, emitting light into the optical fibre in an opposite, second, direction from a second detector arrangement, receiving reflections from the patterns of such emitted light by the second detector arrangement, and processing the reflections for determining a current temperature change related to the optical fibre. A computer program product comprising program code for implementing the above-described method is also provided, along with an associated system and platform.

Abstract: An assembly for pulling, pushing, or blowing a plurality of preterminated fiber optic cables of a multi fiber cable through a duct includes a sleeve, a rod configured to be coupled with the sleeve, and a plurality of dust caps. The sleeve is configured to receive to be coupled with a multi fiber cable and to permit a plurality of preterminated fiber optic cables of the multi fiber cable to pass through the sleeve, and the rod includes a first end configured to be coupled with the sleeve. Each of the plurality of dust caps is configured to be coupled with a ferrule of one of the preterminated fiber optic cables, and each of the plurality of dust caps is configured to be coupled with the rod, thereby coupling the preterminated fiber optic cables with the rod.

Abstract: A polymer optical fibre (POF) (30) for transmitting light of wavelength, ?i, between two separate elements of an active implantable medical device (AIMD), includes a core (31) which is cylindrical and made of a cyclic olefin polymer (COP) or copolymer (COC), having a core refractive index at the wavelength, ?i, n_core, A cladding (32) which has a cladding refractive index at the wavelength, ?i, n_clad<n_core, and which is made of a cladding copolymer including monomers of tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride. The cladding being itself enclosed in a coating (33) which is made of a coating polymer formed of one of the monomers of the cladding copolymer. The POF has a numerical aperture, NA, at the wavelength, ?i, of at least 0.5.

Abstract: A fiber optic cable transition assembly for transitioning a plurality of optical fibers from a multi-fiber cable to a plurality of furcation tubes. The fiber optic transition assembly has a housing with a front opening and an internal passageway that is defined by a wall and a narrow region. The housing is adapted to receive epoxy adhesive. The fiber optic transition assembly has a boot that is positioned at least partially inside the housing for receiving the multi-fiber cable to provide strain relief to the plurality of optical fibers extending therethrough. The fiber optic transition assembly has a plug supported by the boot and retained by the housing to prevent epoxy adhesive from entering the multi-fiber cable.

Abstract: An optical fiber cable includes a plurality of optical fibers, a tensile strength member set that is disposed along the plurality of optical fibers in a longitudinal direction of the optical fiber cable, and a sheath that covers the plurality of optical fibers from outside and encloses the tensile strength member set in the sheath. In the optical fiber cable, at least four tensile strength member sets are embedded in the sheath in a state where the four tensile strength member sets are apart from each other in a radial direction of the optical fiber cable, the sheath includes a flame-retardant inorganic substance and a release agent, and a distance from one of the four tensile strength member sets to a surface layer of the sheath is 0.5 mm or more.

Abstract: This disclosure relates generally to a sensor based wearable fabric design for identifying distortion in movements and quantifying range of motion. Accurate quantification of multi-axial range of motion involved in complex movements of human body parts is challenging. The disclosure discloses a system and method providing a wearable fabric comprising a plurality of honey-comb structure with a plurality of adjacently placed hexagon structures. An optical sensor unit is placed on each side of each hexagon structure comprised in the plurality of honey-comb structures. A deformation of the plurality of sides of hexagon structure is determined to generate signatures of movement patterns of one or more body parts of a subject. Further, a comparison of generated signatures with stored signatures of the movement patterns is performed to determine an error indicative of a distortion in the movement patterns. The system and method accurately quantify range of motion with increased measurement accuracy.

Abstract: A flame-retardant electric cable having a core comprising at least one electric conductor, an electrically insulating coating and an outermost layer made from a flame-retardant polymer composition comprising: a) polyvinylchloride (PVC) as base polymer; b) 25-45% (70-110 phr) by weight of at least one metal hydroxide; c) 0.4-3% (about 1-8 phr) by weight of an optionally surface-treated montmorillonite having average particle dimensions of from 5 to 20 ?m; d) 1.2-3% (about 3-8 phr) by weight of antimony trioxide; wherein the sum of the amount of montmorillonite and antimony trioxide is at least 5.5 phr and wherein the antimony trioxide and montmorillonite are in a ratio of from 1:0.1 to 1:2.5.

Abstract: A communication cable is provided that retains low signal attenuation even after multiple cycles through significant temperature changes. The cable includes a communication element, a tight buffer element that surrounds the communication element, a strengthening element that surrounds the tight buffer element, an inner jacket that surrounds the strengthening element, and an outer jacket that surrounds the inner jacket. The outer jacket protects the interior components and is made of a hard material, and the inner jacket protects the communication element from the mechanical stresses of temperature-induced thermal expansion and contraction of the outer jacket.

Abstract: The invention relates to a plasma chemical vapor deposition (PCVD) apparatus for deposition of one or more layers of silica onto an interior wall of an elongated hollow glass substrate tube. The apparatus comprises a microwave generator, a plasma generator receiving microwaves from said generator in use, a cylindrical cavity extending through said generator, and a cylindrical liner positioned in the cavity. The substrate tube passes through the liner in use. The cylindrical liner has at least one section having a reduced inner diameter over a part of the length of the liner, the at least one section providing a contact zone for the substrate tube. The microwave generator is configured to generate microwaves having a wavelength Lw in the range of 40 to 400 millimeters, wherein a length of said at least one section having the reduced inner diameter is at most 0.1×Lw.

Abstract: A transition tube is provided for receipt of a fiber optic cable with a jacket portion and a stripped fiber portion. The transition tube allows the optical fiber to be placed within a gel block seal so that the gel block need not contact the jacket of the optical fiber cable. In some examples, the transition tube contains inner geometry to allow easy insertion of an optical fiber cable. In other examples, an end of the cable is sealed within the transition tube.

Abstract: A multi-fiber cable assembly includes a pigtail segments spliced to a trunk segment using multiple mass fusion splices. The splices are disposed within an encapsulation at a common axial location. A flexible conduit extends from one end of the encapsulation to protect bare fibers of the trunk segment. A protective sheath extends from the opposite end of the encapsulation to protect the pigtail segments. The conduit and sheath are axially fixed to the encapsulation.

Abstract: A device including a cable transceiver including cable electrical connections including data electrical connections and control electrical connections, and a hardware memory device, the hardware memory device storing a string identifying a cable and being electrically accessible from externally to the cable transceiver via the control electrical connections. The cable, in electrical connection with the cable electrical connections, may be included in the device. A device for verifying cable authenticity is also described, the device including interface hardware for interfacing a plurality of cables with the device, and verifier circuitry configured to verify that each of the plurality of cables is genuine based on a string stored in a hardware memory device included in each of the plurality of cables. Related apparatus and methods are also described.

Abstract: The present disclosure relates to a holder for attaching an optical component to a structure such as a tray. The holder includes integrated first mounting features including end tabs and integrated second mounting features including dovetail projections.

Abstract: A fiber optic connector assembly includes a connector housing defining a locking portion defined on an outer surface of the connector housing, an adapter assembly selectively coupled to the connector housing, the adapter assembly including a conversion housing extending around the connector housing and defining a conversion front end, a retention housing including a connector retention feature engaged with the locking portion of the connector housing and the retention housing defining one or more outwardly-extending retention features, and a release member, engageable with the retention housing, where the release member is positionable between an engaged position, in which axial movement between the retention housing and the conversion housing is restricted, and a disengaged position, in which the retention housing is removable from the conversion housing.

Abstract: The present invention relates to a rapid optical fiber link restoration solution rapidly deployed by pulling, blowing, jetting or hanging in an aerial, on-ground, underground or inside a duct includes an optical fiber connector and an optical fiber cable. The optical fiber connector is connected at both ends of the optical fiber cable. Particularly, the optical fiber cable is dielectric and has a tensile strength 2500 N and a crush resistance of 2000 N/100 mm. Moreover, the optical fiber connector has water resistance for 1.5 meters of water-head for a maximum period of 30 minutes.

Abstract: An optical cable includes a main body and a termination segment extending from an end of the main body. The main body includes middle portions of optical fibers. The termination segment includes end portions of the optical fibers and multi-fiber connectors attached to the end portions of the optical fibers. The multi-fiber connectors are staggered along a length of the termination segment.

Abstract: A fiber optic cable assembly comprises: a cable jacket; distinct groups of optical fibers carried within the cable jacket and extending beyond a first end of the cable jacket; a furcation body positioned on the first end of the cable jacket such that the distinct groups of optical fibers extend beyond the furcation body; and a pulling grip assembly having a proximal end selectively secured to the furcation body, a distal end opposite the proximal end, and an interior between the proximal end and the distal end that contains fiber end sections. The interior of the pulling grip assembly is sealed off from an exterior of the cable assembly to provide sealed protection for the fiber end sections over an ambient temperate range of at least between ?20 to 50° C. while applying a tensile load of at least 300 lbs to the distal end of the pulling grip assembly.

Abstract: An optical fiber cable includes a central strength member, a bedding compound surrounding the central strength member, a plurality of buffer tubes stranded around the central strength member and the bedding compound such that the bedding compound forms to the buffer tubes and occupies substantially the entirety of an inner core area between the buffer tubes and the central strength member. At least one of the buffer tubes contains a plurality of optical fibers and a jacket surrounds the plurality of buffer tubes. The cable may further include a second bedding compound that fills interstices in an outer core area between the buffer tubes and the jacket.

Abstract: Systems and methods to implement a USB and Thunderbolt optical signal transceiver are described. One method includes detecting presence of a USB sideband signal received over an optical communication channel and associated with a USB communication request. Responsive to the detecting, the method may determine that the USB communication request corresponds to a USB communication mode and perform a sideband negotiation. The USB communication mode may be enabled. A specified number of channels associated with the USB communication request may be determined. USB communication may be performed using the specified number of channels over the optical communication channel in the USB communication mode.

Abstract: An image forming apparatus includes an image forming unit configured to perform image formation on a sheet, a casing configured to house the image forming unit, an operation unit configured to receive an operation performed by a user, an electric wire extending from the casing to be connected to the operation unit and configured to transmit an electrical signal, a reinforcing member provided separate from and independent of the electric wire, the reinforcing member interconnecting the casing and the operation unit, and a covering configured to enclose therein the electric wire and the reinforcing member, wherein the reinforcing member is fixed to the casing and the operation unit in such a manner that a distance between a portion fixed to the casing and a portion fixed to the operation unit in the reinforcing member is shorter than a total length of the electric wire.

Abstract: An assembly assembled by a plurality of sections put together, wherein the section includes an elongated structure having a left end and a right end, an optical fiber having a left end and a right end and extending from its left end to its right end so that: the left ends of the elongated structure and of the optical fiber are located on the same left side of the section, and the right ends of the elongated structure and of the optical fiber are located on the same right side of the section, each end of the optical fiber is enclosed in a junction box, the box of the right or left end of the optical fiber of the section being assembled with the junction box of the left end or right end of the optical fiber of another similar section to optically connect the optical fibers of two sections.

Abstract: A fiber optic pigtail assembly that includes a plurality of optical fibers and at least one optical connector. The optical fibers each have a first end opposite a second end. The plurality of optical fibers are ribbonized together from the first end of each of the plurality of optical fibers partway toward the second end of each of the plurality of optical fibers and form a ribbonized end portion. The at least one optical connector is connected to the second end of each of the plurality of optical fibers. A loose portion of the plurality of optical fibers is positioned between the at least one optical connector and the ribbonized end portion.

Abstract: Devices, assemblies, and methods for anchoring portions of telecommunications cables, including protective sheaths and strength members. In some examples, the devices and assemblies are adjustable to accommodate different sized cables and cable components. According to one embodiment, an assembly includes two members that cooperate via a ratcheting mechanism to adjust to different cable diameters, the assembly further including features adapted to anchor strength member yarn of a cable.

Abstract: A distributed utility system includes water source supply lines capable of being placed in fluid communication with a separate water source, water discharge lines capable of being placed in fluid communication with a separate water discharge destination, a water source and destination control manifold to allow selected water source supply lines to be placed in fluid communication with selected water discharge lines, and a storm water collection and distribution system. The storm water system includes a storm water collection conduit and a collected storm water discharge line in fluid communication with the storm water collection conduit, and the storm water discharge line can be placed in fluid communication with the plurality of water discharge lines via the control manifold. The distributed utility system further includes a utility line disposed within at least one of the water source supply lines, water discharge lines and collected storm water discharge line.

Abstract: Cable adapters, connector assemblies, and optical cable assemblies incorporating an integral seal are disclosed. According to one aspect, a cable adapter includes a first end, a second end, and a passageway extending between the first end and the second end. The cable adapter further includes a seal groove within a surface of the second end, at least one opening within the seal groove, wherein the at least one opening is fluidly coupled to the passageway, and a seal within the seal groove. The seal includes a sealing material disposed within the seal groove, the at least one opening, and along an interior surface of the passageway.

Abstract: The present invention relates to a pre-terminated (pre-terminated) optical fibre cable assembly (10,90), which is configured to be installed through a duct (20). The pre-terminated optical fibre construction (10,90) includes at least one optical fibre (46). A protective sleeve (26) is added to the optical fibre (46) before adding a terminal connector (24) to the leading end of at least one optical fibre (46). The protective sleeve (26) extends from behind the terminal connector (24) along part of the length of the optical fibre (46). When the cable is installed through a duct, the protective sleeve protects the portion of the fibre that protrudes from the end of the duct, for example in a communications cabinet (16). A residual length (28) of the protective sleeve remains within the duct. Terminal connectors and protective sleeves can be applied at both ends of the cable assembly, or only one end.

Abstract: A pre-terminated end of a fiber optic cable has a protective cap that protects the optical fiber and the ferrule assembly at the terminal end. The protective cap has an attachment feature enabling a pull cord to attach to the protective cap. The protective cap has a body including an exterior surface and a receptacle formed in the body and configured to receive a portion of the fiber optic cable, and the attachment feature. The attachment feature includes a cavity formed in a tip of the body and at least two openings formed in the exterior surface of the body and connected to the cavity.

Abstract: An optical combiner includes: an optical fiber bundle formed by a plurality of first optical fibers; and a second optical fiber including an end surface joined to an end surface of the optical fiber bundle by fusion-splicing. The plurality of first optical fibers includes a predetermined first optical fiber and other first optical fibers. The predetermined first optical fiber is composed of one or more materials having higher softening temperatures than one or more materials of the other first optical fibers.

Abstract: A fiber optic cable assembly comprises: a cable jacket; distinct groups of optical fibers carried within the cable jacket and extending beyond a first end of the cable jacket; a furcation body positioned on the first end of the cable jacket such that the distinct groups of optical fibers have respective fiber end sections extending beyond the furcation body; and a pulling grip assembly protecting the fiber end sections. The pulling grip assembly includes a pulling band releasably secured to the cable jacket by a clamp, and is configured to withstand significant tensile loads despite being easily removable.

Abstract: An optical fiber carrying structure that includes a jacket and a rip cord is provided. Optical fiber cables are used to transmit data over distance. Generally, large distribution cables that carry a multitude of optical fibers from a hub are sub-divided at network nodes into subunits. To remove a jacket of a subunit, the subunit may be provided with an access feature such as a rip cord. Described herein is a rip cord for use with optical fiber carrying structures.

Abstract: The present invention provides a portable charging light-emitting cable for new energy vehicles, including power configuration wires, a signal wire, electroluminescent wires, a filling layer and an outer protective sleeve. The power configuration wires are evenly arranged around the signal wire. At least more than two electroluminescent wires are mutually helically twisted with the power configuration wires in the same number of groups around an outer wall of the signal wire into a cable shape. Each electroluminescent wire is arranged between two adjacent power configuration wires. According to the present invention, the electroluminescence technology is incorporated into light-emitting charging cables. While charging, cables emit light evenly, which is suitable for charging observation at night, and rich colors are provided to play a warning role to prevent accidents. During the light-emitting process, light-emitting wires do not generate any heat, and energy consumption is extremely low.

Abstract: A mode-dependent loss measurement device measures a mode-dependent loss of a measurement target optical fiber including a coupled MCF. The device includes a light source, a light receiver, a mode coupled state changer, and an analysis unit. The light source inputs light to an input end of an excitation optical fiber including another coupled MCF. The light receiver detects a sum of powers of outputted light beams from a plurality of core end faces positioned on an output end of the measurement target optical fiber. The mode coupled state changer changes a mode coupled state of the excitation optical fiber. The analysis unit obtains a mode-dependent loss of the measurement target optical fiber from variations in optical powers detected by the light receiver.

Abstract: The present disclosure relates to a cable assembly including a sleeve and a plurality of cables that extend through the sleeve. The cable assembly also includes a grommet positioned within the sleeve at a location offset from one end of the sleeve. The grommet forms a dam location. The cable assembly further includes a bonding material at least partially filling a region of the sleeve located between the dam location and the end of the sleeve. The bonding material bonds the fiber optic cables and the grommet relative to the sleeve. The cables extend through the grommet and the bonding material and include break-out portions that extend outwardly beyond the end of the sleeve.

Abstract: An optical fibre includes a glass core, a glass cladding, a primary coating layer and a secondary coating layer. The glass cladding surrounds the glass core. The glass cladding has a cladding refractive index. The primary coating layer is sandwiched between the glass cladding and the secondary coating layer. The primary coating layer may have one of a primary in-situ modulus in the range of 0.1 to 0.2 mega pascal and a primary coating thickness in the range of 2.5 micrometers to 10 micrometers. The secondary coating layer may have one or more of the secondary in-situ modulus greater than or equal to 1.2 giga pascal and the secondary coating thickness in a range of 2.5 to 17.5 micrometers.

Abstract: An optical cable includes a single optical connector configured for insertion into an optical receptacle so as to receive optical signals at a plurality of different wavelengths from the optical receptacle, and multiple electrical connectors, configured for insertion into respective electrical receptacles. Each electrical connector includes a transceiver configured to convert the optical signals into electrical output signals for output to an electrical receptacle. The optical cable further includes a plurality of optical fibers, having respective first ends connected together to the single optical connector so as to receive the optical signals. Each of the optical fibers has a respective second end coupled to a respective one of the electrical connectors. Wavelength selection optics are associated with the optical fibers so that the transceiver in each of the electrical connectors receives the optical signals at a different, respective one of the wavelengths.

Abstract: A fiber splice closure for housing an optical connection between a distribution cable and at least one drop cable of an optical network includes a base and an insert. The base includes round drop cable ports configured to receive a drop cable containing a first optical fiber. Screw holes are arranged in a radial side wall of the drop cable ports and receive a fixing device to secure the drop cable. A round port receives a distribution cable containing a second optical fiber. A clamp secures the distribution cable to the base. An insert has first and second wrap guides that house excess first optical fiber.

Abstract: A cable-tie carrier is disclosed herein that includes a chip holder with a recess cavity for holding an electronic chip and a cable that is removably attached to the chip holder. The electronic chip stores identification information or testing data that may be used to identify and track the part. External computing devices (e.g., smart phone, tablet, scanner) may access the stored identification information or testing data for a user. The electronic chip is fastened, magnetically attached, or stuck with adhesive to the chip holder to position a transmitter (or antenna) to face out of the recess cavity.

Abstract: A distributed utility system includes water source supply lines capable of being placed in fluid communication with a separate water source, water discharge lines capable of being placed in fluid communication with a separate water discharge destination, a water source and destination control manifold to allow selected water source supply lines to be placed in fluid communication with selected water discharge lines, and a storm water collection and distribution system. The storm water system includes a storm water collection conduit and a collected storm water discharge line in fluid communication with the storm water collection conduit, and the storm water discharge line can be placed in fluid communication with the plurality of water discharge lines via the control manifold. The distributed utility system further includes a utility line disposed within at least one of the water source supply lines, water discharge lines and collected storm water discharge line.

Abstract: A fiber optic cable breakout assembly includes: a fiber optic cable including a plurality of first optical fibers and a first jacket surrounding the optical fibers; a breakout canister; a plurality of pigtail cords, each of the pigtail cords including a second optical fiber partially encased in a second jacket and an optical connector, each of the pigtail cords extending away from the canister, each of the optical fibers extending through the canister; and a flexible furcation tube attached to and extending between the fiber optic cable and the breakout canister, the furcation tube including an armored inner layer and a polymeric outer layer, wherein each of the first optical fibers is spliced to a respective second optical fiber within the inner layer of the furcation tube.

Abstract: A pre-terminated end of a fiber optic cable has a protective cap that protects the optical fiber and the ferrule assembly at the terminal end. The protective cap has an attachment feature enabling a pull cord to attach to the protective cap. The protective cap has a body including an exterior surface and a receptacle formed in the body and configured to receive a portion of the fiber optic cable, and the attachment feature. The attachment feature includes a cavity formed in a tip of the body and at least two openings formed in the exterior surface of the body and connected to the cavity.

Abstract: Telecommunications assemblies and modules incorporating demateable fiber optic connection interfaces for coupling non-ferrulized optical fibers.

Abstract: Disclosed is an optical probe of an optical coherence tomography (OCT) system according to an exemplary embodiment of the present disclosure. The optical probe of the OCT system includes: an optical fiber receiving light generated from a light source and transferring the received light to a plurality of lenses and receiving light reflected from tissue from the plurality of lenses and transferring the received light to an optical coherence system; a plurality of lenses including a first lens positioned at a distal end of the optical fiber and a second lens positioned at a predetermined point in a longitudinal direction of the optical fiber; and a sheath capable of accommodating the optical fiber therein.