A quasi-optical waveguide apparatus includes a waveguide having a chamber formed by a substantially cylindrical body and configured to propagate terahertz radiation. A plurality of windows are included wherein each window is coupled to a respective end of the waveguide such that the chamber is substantially sealed from the ambient atmosphere. The plurality of windows are transparent to the terahertz radiation.

A system for automatically inserting fibers is disclosed. The system comprises a cable having a plurality of fibers, a ferrule having a plurality of bores, a moving mechanism movable in a first direction, a second direction, and a third direction that are perpendicular to each other, a cable holder mounted on the moving mechanism and holding the cable, and a vision device. The moving mechanism moves the cable holder under the guidance of the vision device to align the plurality of fibers with the ferrule and insert the plurality of fibers into the plurality of bores.

There is provided a multi-clad fiber assembly for reducing and eliminating deleterious laser-contaminant interrelations, and methods of making these assemblies. There is provided an optical connector having contaminants that are shielded from causing detrimental thermal effects, during laser beam transmittion, by preventing laser-contaminant interactions.

A splice assembly for a fiber optic cable that has first and second fiber optic cable sections. The splice includes a filament alignment member configured to align an end portion of a first filament section of the first fiber optic cable section with an opposed end portion of a second filament section of the second fiber optic cable section; a first spring positioned adjacent the first end of the filament alignment member; a second spring positioned adjacent the second end of the filament alignment member; and a housing having a passage in which the first spring, filament alignment member and second spring are longitudinally positioned. The filament alignment member is longitudinally moveable relative to the housing by compression of one of the springs in a direction of travel of the filament alignment member against a corresponding stop feature.

An optical connector includes: at least a ferrule and n self-forming optical waveguides, wherein the ferrule includes n optical fiber insertion holes, and optical fibers are each inserted into and included in the optical fiber insertion holes, the number n indicates a natural number not including zero, there are variations in an angle of each optical fiber in a core axial direction and a core gap between adjacent ones of the optical fibers, an end surface of the ferrule is formed with roundness, and end portions of the self-forming optical waveguides are each optically connected to the optical fibers.

An optical connector includes: at least a ferrule and n self-forming optical waveguides, wherein the ferrule includes n optical fiber insertion holes, and optical fibers are each inserted into and included in the optical fiber insertion holes, the number n indicates a natural number not including zero, there are variations in an angle of each optical fiber in a core axial direction and a core gap between adjacent ones of the optical fibers, an end surface of the ferrule is formed with roundness, and end portions of the self-forming optical waveguides are each optically connected to the optical fibers.

The application provides an optical fiber splice with an adjustable sleeve, which comprises: a carrier, an optical fiber cable and an adjustable sleeve. The carrier has a first fixed end and a second fixed end along an optical fiber extension direction. The optical fiber cable has a cable part and an optical fiber outlet part. The optical fiber outlet part extends from the cable part and is fixed to the first fixed end. The adjustable sleeve is sleeved on the cable part. An outer peripheral surface of the adjustable sleeve is provided with a plurality of positioning features. Wherein in the optical fiber extension direction, the positions of the positioning features disposed on the adjustable sleeve are deviated from each other by a distance. One of the positioning features is fixed to the second fixed end.

The present disclosure relates to optical fiber alignment devices and systems for use in implementing optical splices between optical fibers. In certain examples, the optical fiber alignment devices and systems can include fiber alignment structures capable of clamping optical fibers in a co-axially aligned orientation.

Optical system comprising two optical fibres which are configured to define between them a Fabry-Perot cavity, and a connecting element bonded to each of the two optical fibres, the connecting element defining a through-passage, at least one of the two optical fibres comprising an end portion arranged in the through-passage and bonded to the connecting element, the two optical fibres extending along an axis and being separated from one another by a distance Le parallel to the axis, one of the optical fibres being bonded to the connecting element at a first bonding zone, and the other optical fibre being bonded to the connecting element at a second bonding zone separated from the first bonding zone by distance parallel to the axis.

An optical fiber guide structure includes a guide member uprightly provided on a connection surface of an optical waveguide device and forming a space for housing a tip of an optical fiber when the optical fiber is connected to the optical waveguide device. The guide member is made of a photocurable resin. On the plane perpendicular to the direction in which the optical fiber is inserted into the space, the diameter of an inscribed circle within an inner wall of the guide member configured to form the space is substantially identical to the outer diameter of the optical fiber. The center of the inscribed circle coincides with the center of the core exposed from the connection surface of the optical waveguide device when viewed in the direction in which the optical fiber is inserted.