The box has a base (10) and a (20) which is hinged to the base (10 and displaceable between a closed position and an open position. At least one peripheral wall (12) of the base (10) is provided with at least two lateral openings (13) each being flanked by two inclined recesses (13a/13b) and each closed by a sealing grommet (30) for the passage of at least one multi-fiber optical cable (CO) and which is pressed into the lateral opening (13) to receive thereon a sealing gasket (24) carried by the lid (20). A splitter accommodation tray (60) has a front face (61) attached to the top wall (21) of the lid (20) and carrying splitter and/or fiber accommodation means (MSF), and a rear face (62) covered by a splitter protective plate (PS). Each splitter and/or fiber accommodation means (MSF) is connectable to a fiber extension (EF1) of an optical cable (CO) received in the base (10) and to fiber extensions (EF2) connected to output adapters (AS) mounted. on at least one peripheral wall (22) of the lid (20) and externally connected to connectors (C) of terminal cables (CT).

An optical module capable of suppressing deterioration of an adhesive layer and having a resistance to high-power light even when high-energy light propagates is configured by connecting an optical fiber to a PLC. The optical fiber is provided with an etching face at a recessed area where a cladding region on its side face is partially removed over a length L in a light propagation direction from an input/output end connected to the PLC, and the PLC is also provided with an etching face at a recessed area where a cladding layer is partially removed over the length L in the light propagation direction from an input/output end connected to the optical fiber. The adhesive layer made of a UV cured resin is interposed between the etching faces to bond and fix the etching faces to each other, and a core of the optical fiber and a core layer of the PLC form a directional coupler for linearly dispersing energy density.

A fiber optics rotary joint (FORJ) connects a system console to a probe having a rotatable core, and transfers rotational motion to the probe core. The FORJ comprises a stationary optical fiber in optical communication with a rotatable optical fiber, a motor having a hollow shaft, and a fiber connector attached to a distal end of the hollow shaft. The motor is configured to rotate the rotatable optical fiber relative to the stationary optical fiber. The rotatable fiber is attached to the proximal end of the hallow shaft and connected to the fiber connector. The distal end of the stationary optical fiber is directly opposed to and aligned with the proximal end of the rotatable optical fiber such that optical axes of the stationary and rotatable optical fibers are substantially collinear with the rotational axis of the motor. The fiber connector transfers optical power and torque to the probe core.

Embodiments are disclosed for a coupling element with embedded modal filtering for a laser and/or a photodiode. An example system includes a laser and an optical coupling element. The laser is configured to emit an optical signal. The optical coupling element is configured to receive the optical signal emitted by the laser. The optical coupling element is also configured to be connected to an optical fiber such that, in operation, the optical signal is transmitted from the laser to the optical fiber via the optical coupling element. Furthermore, the coupling element comprises a tapered section that provides modal filtering of the optical signal.

A process of making a diverging-light fiber optics illumination delivery system includes providing a micro-post comprising a glass-ceramic light-scattering element that includes at least one of a ceramic, a glass ceramic, an immiscible glass, a porous glass, opal glass, amorphous glass, an aerated glass, and a nanostructured glass; and fusion-splicing the glass-ceramic micro-post to the optical fiber by pulling an arc between electrodes across a gap formed by the optical fiber and the glass-ceramic micro-post; maintaining the arc for a time sufficiently long to make facing surfaces of the optical fiber and the micro-post one of malleable and molten; and pushing and thereby fusing together the facing surfaces of the optical fiber and the micro-post. Some embodiments can include fusing the glass-ceramic micro-post to the optical fiber by applying a laser beam to heat up at least one of the facing surfaces of the optical fiber and the glass-ceramic micro-post.

An optical fiber (F2) having a length defining a longitudinal direction is disclosed. The optical fiber (F2) has at least two fiber cores (C21, C22) extending along the length of the optical fiber (F2), and an optical coupling member (OCM2) is arranged at a proximal optical fiber end of the optical fiber (F2). The coupling member (OCM2) has a first distal end face (OF2) optically connected to the proximal optical fiber end, and a proximal second end face (IF2) spaced apart from the first distal end face (OF2) in the longitudinal direction of the optical fiber (F2), the optical coupling member (OCM2) being configured to couple light into each of the fiber cores (C21, C22, C23).

The disclosure relates to diagnostic, surgical, and/or therapeutic devices for being introduced into the human or animal body or for in vitro examination of human or animal blood samples or other body cells, in particular to an endoscope or a disposable endoscope that includes at least one illumination light guide and/or image guide for transmitting electromagnetic radiation, the illumination light guide or image guide having a proximal end face for incoupling or outcoupling of electromagnetic radiation and a distal end face for incoupling or outcoupling of electromagnetic radiation. The proximal and/or distal end faces consist of plastic elements that are transparent at least partially or in sections thereof, the transparent plastic being biocompatible and/or having non-toxic properties to human or animal cell cultures for exposure durations of less than one day. This allows for the production of assemblies for disposable endoscopes, inter alia.

A ranging apparatus for use in a plasma processing chamber having an internal space and a window is disclosed. The ranging apparatus includes at least one external light emitting device disposed external to the plasma processing chamber. The external light emitting device emits at least one source light beam to the internal space through the window. The ranging apparatus includes a base wafer disposed on a stage in the internal space. The ranging apparatus includes at least one optical circuit fixed to the base wafer. The optical circuit deflects the source light beam to a target in the internal space, and deflects a reflection light beam to the window. The ranging apparatus includes at least one external light receiving device disposed external to the plasma processing chamber. The external light receiving device receives the deflected reflection light beam through the window.

This optical communication device (1) is provided with a plurality of light-receiving elements (11) and a plurality of optical fibers (12). The plurality of optical fibers each includes a light-incident end portion (12a) for communication light and a light-emission end portion (12b) for communication light. The plurality of light-emission end portions is each arranged near each of the plurality of light-receiving elements. The plurality of light-incident end portions is each configured to be capable of being arranged in a predetermined position in a predetermined direction.

The present invention relates to an optical fiber device for removing cladding light, an apparatus and a method for etching the same. The optical fiber device comprises: a first optical fiber section through an N.sup.th optical fiber section arranged in sequence along a light travelling direction; and a first tapered coupling section coupling a K.sup.th optical fiber section and a (K+1).sup.th optical fiber section, where the K.sup.th optical fiber section is any one of the first optical fiber section through the N.sup.th optical fiber section and the (K+1) optical fiber section is any one of the first optical fiber section through the N.sup.th optical fiber section adjacent to the K.sup.th optical fiber section, wherein the K.sup.th optical fiber section comprises: at least one first subsection and at least one second subsection alternately arranged along the light travelling direction, each of the at least one first subsection having a diameter D.sub.2K−1 and a length L.sub.2K−1; and each of the at least one second subsection having a diameter D.sub.2K and a length L.sub.2K; and a second tapered coupling section coupling the first subsection and the second subsection adjacent to the first subsection, wherein the diameter D.sub.2K−1 and the length L.sub.2K−1 of the first subsection and the diameter D.sub.2K and the length L.sub.2K of the second subsection of the K.sup.th optical fiber section and a diameter D.sub.2K+1 and a length L.sub.2K+1 of the first subsection and a diameter D.sub.2K+2 and a length L.sub.2K+2 of the second subsection of the (K+1).sup.th optical section satisfy D.sub.2K−1>D.sub.2K, D.sub.2K+1>D.sub.2K+2, L.sub.2K−1>L.sub.2K+1, L.sub.2K>L.sub.2K+2 and D.sub.2K−1=D.sub.2K+1, and satisfy D.sub.2K>D.sub.2K+2 for odd K and D.sub.2K<D.sub.2K+2 for even K (where N is a natural number, and K is any natural number satisfying 1≤K≤N−1).