Abstract: A shape sensing enabled instrument includes a flexible guide wire or support rod including an outer surface which encapsulates interior features. The interior features include an optical fiber lumen (105) configured to receive one or more optical fibers for optical shape sensing, and a guide wire support rod or the support rod forming a hollow extending longitudinally along the instrument. The guide wire support rod or the support rod is configured to receive the optical fiber lumen therein to permit rotation and translation of an optical fiber and to protect the optical fiber.

Abstract: An optical probe includes a first region and a second region connected to have a continuous optical waveguide in which a transmission mode is a single mode. The first region connected to a tip-end surface opposed to an optical device includes a region in which a mode field diameter that is maximum at the tip-end surface is gradually decreased toward a boundary between the first region and the second region. The tip-end surface is a curved surface and has a radius of curvature set so that an advancing direction of an optical signal entering through the tip-end surface approximates in parallel to a central-axis direction of the optical waveguide.

Abstract: The method for creating an optical fiber ribbon of the present disclosure includes a first step of arranging a plurality of optical fibers in parallel to each other for creating the optical fiber ribbon. In addition, the method includes a second step of intermittently bonding the plurality of optical fibers partially at specific intervals using a matrix material. Further, intermittent bonding of the plurality of optical fibers is in pattern of text. Furthermore, intermittent bonding of the plurality of optical fibers allows the optical fiber ribbon to bend along preferential axis. Moreover, intermittent bonding of the plurality of optical fibers is in pattern of text.

Abstract: A pre-termination module box and an optical fiber distribution box using same are provided, twelve groups of MDC adapters configured at a front end of a box body and arranged in a horizontal, single row. Each group of the twelve groups of MDC adapters adopts at least one two-core MDC connector, and a plurality of groups of MPO adapters configured at a rear end of the box body and arranged in a horizontal single row to connect with the twelve groups of MDC adapters. A receiving room is formed in the box body for receiving patch cords that are connected between the MDC and MPO adapters, a locking member arranged at the rear end and configured to lock the pre-termination module box in the optical fiber distribution box, which has high wiring capacity and is conducive to reducing a floor area of a central machine room and saving costs.

Abstract: Fiber optic terminals, tools and methods for adjusting a split ratio of a fiber optic terminal are disclosed. In one embodiment, a tool for adjusting a split ratio of a fiber optic terminal includes an axle for insertion into a port of the fiber optic terminal, and a terminal engagement body disposed about the axle. The terminal engagement body includes a terminal engagement feature for engaging an alignment feature within the fiber optic terminal, wherein the axle is free to rotate with respect to the terminal engagement body, and a set-point indicator. The tool further includes an end piece coupled to the axle, and a plurality of set-point markers, wherein rotation of the end piece causes rotation of the axle and an alignment between one set-point marker of the plurality of set-point markers with the set-point indicator indicates the split ratio of the fiber optic terminal.

Abstract: An optical probe package structure is provided, used in a test environment for testing a plurality of optical chips on a wafer, including: a main body, an optical fiber, an optical fiber positioning area, a mode field conversion waveguide structure, and an optical waveguide. Wherein, the mode field conversion waveguide structure is used to convert the propagation field of the optical signal, and the optical signal transmitted by the mode field conversion waveguide structure enters the optical waveguide. The optical waveguide has an emitting end, and the emitting end is provided with a facet, the facet has a facet angle, and the facet angle makes the optical signal after field conversion mode field conversion to produce total reflection and output along a second direction. The optical signal after total reflection enters the optical chips. Thereby, an optical probe package structure that can test before wafer cutting and polishing is provided.

Abstract: An interferometric optical fibre sensor comprises optical fibre defining an optical circuit configured to propagate a first optical wave via an environment in which the optical fibre can be exposed to a stimulus that modifies the first optical wave, and a second optical wave, and to combine the first optical wave and the second optical wave to create an interference signal containing information about the stimulus, wherein optical fibre propagating either or both of the first optical wave and the second optical wave comprises hollow core optical fibre configured to propagate the optical wave or waves by an antiresonant optical guidance effect.

Abstract: A reinforcing sleeve for collectively reinforcing spliced portions of a plurality of optical fiber core wires disposed side by side includes a heat-shrinkable tube, a heat-meltable member, a tension member, and so on. The tension member and the heat-meltable member are inserted into the heat-shrinkable member. A thick portion is provided at a substantially center portion of a width direction of the heat-meltable member. Thus, on a cross section perpendicular to a longitudinal direction of the heat-meltable member, an amount of the heat-meltable member at proximity of the center portion of the width direction of the heat-meltable member is greater than an amount of the heat-meltable member at proximity of the end portions of the width direction of the heat-meltable member. This forms a flow of the heat-meltable member from the center portion toward the end portions in the width direction at the time of melting the heat-meltable member.

Abstract: A head assembly of optical fiber connector comprises a guiding head, a terminal base, an elastic element, a tube body, and a stopping element. The guiding head has a fiber channel for receiving optical fiber. The terminal base has a front base body and the rear base body, wherein the front base body is utilized for accommodating an end portion of the guiding head. The elastic element is utilized to accommodate with the terminal base. The tube body has an accommodation space for accommodating with the terminal base. The stopping element is arranged into the tube body, and has a through hole allowing the rear base body passing therethrough, wherein a second end of the elastic element is leaned against the stopping element. The present invention further provides a protection cap for protecting the head assembly from being damaged and contaminated.

Abstract: The resin composition according to an aspect of the present disclosure is a resin composition containing a photopolymerizable compound comprising urethane (meth)acrylate and a polyrotaxane, and a photopolymerization initiator, and the content of the polyrotaxane is 0.05% by mass or more and 11% by mass or less based on the total amount of the photopolymerizable compound.

Abstract: An optical apparatus, comprising a semiconductor substrate, a dielectric layer located on the semiconductor substrate, wherein a membrane portion of the dielectric layer is located over a cavity in a surface of the semiconductor substrate, a resistive heater located on the membrane portion, the resistive heater being controllable by a current applied to the resistive heater and an etalon optical filter located on the resistive heater and over the cavity, an optical passband of the etalon optical filter being wavelength tunable by the resistive heater. A method of manufacturing the optical apparatus is also disclosed.

Abstract: An optical fiber cleaning assembly includes a cleaning tape, a first spool having the cleaning tape wound thereon, a second spool onto which the cleaning tape is drawn, a drive mechanism configured to move the cleaning tape from the first spool to the second spool, and one or more first connectors configured to mate with one or more connectors of a system, the system including a first optical fiber. The optical fiber cleaning assembly further includes one or more second connectors configured to mate with one or more optical fiber connectors of a device while the optical fiber cleaning assembly is attached to the system by the one or more first connectors, the device including a second optical fiber. The drive mechanism is configured to move the cleaning tape from the first spool to the second spool to wipe the face of the first or second optical fiber.

Abstract: An optical device has a light path for guiding a light beam along a circular arc. The light path has at least one light path segment having a number of light path elements arranged tangentially along the light path. Each of the light path elements is at least partially limited in a radial direction by a first interface. The first interfaces of a respective light path segment are each configured to reflect at least light incident from the light path at an angle of incidence greater than a predetermined angle onto the respective first interface to keep a light beam propagating along the light path in a direction of travel predetermined for the respective light path segment on the light path. A first tangential end of the first interfaces is spaced radially further apart from the center of the circular arc than a second tangential end.

Abstract: The fiber optic adapter according to the present disclosure may include an adapter housing defining a channel to receive a fiber optic connector having one or more ferrules, and a first shutter and a second shutter attached to opposing sidewalls of the adapter housing. Each of the first and second shutters have a first member and a second member. The first member is configured to extend into the channel. the first members of the first and second shutters are sized and shaped to cooperatively close the channel. At least one of the first member is resiliently movable upon insertion of the fiber optic connector into the channel to open the channel. The fiber optic adapter may prevent the entry of the dust and other debris.

Abstract: Photonics structures including a slotted waveguide and methods of fabricating such photonics structures. The photonics structure includes a slotted waveguide having a first waveguide core and a second waveguide core laterally positioned adjacent to the first waveguide core. The first waveguide core is separated from the second waveguide core by a slot. The photonics structure further includes a metamaterial structure having a plurality of elements separated by a plurality of gaps and a dielectric material in the plurality of gaps. The metamaterial structure and the slot of the slotted waveguide are positioned with an overlapping arrangement.

Abstract: An adapter with novel alignment features engages alignment features on a plug, providing general alignment of the ferrule holders and ferrules in the plug. After the plug engages the adapter, the ferrule holders engage a second set of alignment features in the adapter to provide fine alignment for the ferrules.

Abstract: The method comprises the steps of A) equipping the end of the fiber with an added microstructure (MS) arranged so as to provide support on a surrounding structure forming a support (SE) distinct from the photonic device (PIL) and to prevent any contact with a sensitive surface (FA) of the photonic device, B) optimally aligning, in position and in angle, the fiber end with the sensitive surface, and C) exerting on the microstructure and/or the optical fiber a bearing pressure (P) against the surrounding support structure, maintaining an optimal spacing distance (D) and alignment between the fiber end and the sensitive surface.

Abstract: A fiber optic probe is provided with a distal sampling end, a proximal end, and light delivery and collection paths therethrough. The probe includes a window disposed at the distal sampling end of the fiber optic probe, the window having a distal end and a proximal end. A lens is disposed at the proximal end of the window, the lens having a distal end, a proximal end, and an aperture. A light delivery optical fiber is provided having a distal end and a proximal end, the distal end being received by the lens aperture. An optical isolator provided within the lens aperture to optically isolate the light delivery path and the light collection path. A collection optical fiber is provided in optical communication with the fiber collection filter. The probe may include a lens collection filter disposed between the window and the lens.

Abstract: An optical-fiber ribbon includes optical fibers (e.g., reduced-diameter optical fibers) arranged in parallel within optical-fiber units, wherein at least one adjacent pair of optical-fiber units is separated by a longitudinal adhesive-free spacing for a portion of the optical-fiber ribbon's length. Typically, each adjacent pair of optical-fiber units is separated by an adhesive-free spacing for a respective portion of the optical-fiber assembly's longitudinal length. In an exemplary embodiment, longitudinal adhesive-free spacings effectively increase the width of an optical-fiber ribbon formed of reduced-diameter optical fibers so that the optical-fiber ribbon achieves a more conventional optical-fiber ribbon width, thereby facilitating mass-fusion splicing using standard splicing equipment.

Abstract: An optical device includes a modulator and a tap coupler. The modulator includes an optical waveguide that is formed of a thin-film lithium niobate (LN) substrate and through which light passes, and an electrode that applies voltage to the optical waveguide, and modulates a phase of light that passes through the optical waveguide in accordance with an electric field in the optical waveguide, where the electric field corresponds to the voltage. The tap coupler includes at least a part formed of the thin-film LN substrate, and splits a part of the light that passes through an inside of the optical waveguide. The tap coupler includes a delayed interferometer that splits a part of the light that passes through the optical waveguide, at a split ratio corresponding to a phase difference of light that passes through an inside of the tap coupler from the optical waveguide.