An optical device is provided. The optical device includes a fiber array and an optical assembly. The fiber array includes a common channel and a plurality of divided. channels arranged in parallel in a first direction and extending along a second direction, and the fiber array has a first surface from a top view perspective. The optical assembly is coupled to the first surface of the fiber array. The first surface and the common channel of the fiber array form an angle less than 90 degrees from the top view perspective.

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 photonic integrated circuit (PIC)-based imager blade includes a number of PIC imager units stacked on top of one another. Each PIC imager unit includes a PIC coupled, at a first end and a second end, to a first set of lenslets and a second set of lenslets, respectively. An electronic integrated circuit (EIC) is coupled to the PIC. Pairs of lenslets of the first and second set of lenslets are optically coupled to respective waveguides embedded in the PIC. The PIC imager units have different lengths, and longer PIC imager units include larger lenslets.

The optical device can comprise a substrate having a first face opposite a second face, a thickness between the first face and the second face, the first face and the second face being planar, the first face being parallel the second face, the substrate being transparent to an electromagnetic radiation in a given spectrum; a planar polarization-dichroic focusing lens covering the first face, the lens having a first focusing power for a first polarization of the electromagnetic radiation and a second focusing power for a second polarization of the electromagnetic radiation, the second focusing power being different from the first focusing power; and a planar polarization-dichroic mirror covering the second face, the mirror being reflective to the first polarization and transparent to the second polarization.

To provide an optical communication connector, an optical transmitter, an optical receiver, an optical communication system, and an optical communication cable that make it possible to prevent reduction in communication quality at low cost. An optical communication connector according to the present technology is capable of spatial optical coupling, and the optical communication connector includes a first lens and a second lens. The first lens magnifies light emitted from a light emitter. The second lens shapes light incident from the first lens and outputs the shaped light.

This disclosure generally relates to high-speed fiber optic networks that use light signals to transmit data over a network. The disclosed subject matter includes devices and methods relating to lens receptacles and/or optoelectronic subassemblies. In some aspects, the disclosed devices and methods relate to a lens receptacle including a receptacle body extending between a receptacle top and a receptacle bottom, the receptacle body including: a port body defining a receptacle port with a port opening at the receptacle top; a receptacle window defining a base of the receptacle port; a lens array including lenses positioned on the receptacle window; and at least one receptacle alignment feature.

An optical connection structure 1 includes a waveguide substrate; a Si waveguide formed on one surface of the waveguide substrate and having a first end surface; an optical fiber having a second end surface facing the first end surface; a terrace section extending further toward the optical fiber side from an end portion on the optical fiber side of the waveguide substrate; and a lens disposed on the terrace section, and arranged on an optical axis connecting the first end surface and the second end surface.

A ferrule with a fiber of this disclosure includes: a ferrule including a positioning hole, a plurality of fiber holes, and an endface perpendicular to an axial direction of the fiber holes; a lensed fiber with a GRIN lens that has been fusion spliced to a tip of an optical fiber; and a plate that can transmit light propagating through the optical fiber, the plate being attached to the endface of the ferrule, the plate being contacted against with an endface of the lensed fiber that has been inserted into each of the fiber holes, wherein the ferrule is formed with a recess that is depressed from the endface of the ferrule, a refractive index matching material is filled in a space surrounded with the plate and the recess.

A collimator device and a collimator lens array for an optical circuit switch are provided. The collimator includes a fiber array including multiple optical fibers disposed in a hole array. An optical lens array is aligned and coupled to the fiber array. A spacer is disposed between the fiber array and the optical lens array and provides substantially uniform spacing between lenses in the optical lens array and corresponding fibers in the fiber array. Multiple pads are positioned along edges of a surface of the spacer facing the optical lens array defining a first separation gap between the spacer and the optical lens array. A first epoxy bonds the spacer to the optical lens array, and a second epoxy bonds the spacer to the fiber array. The optical lens array includes a glass substrate having a first surface defining lenses in a two-dimensional array.

An optical functional device includes a package case accommodating an optical functional element, an input optical fiber, and an output optical fiber. The optical functional device includes a first reflecting surface that reflects input light output from the input optical fiber to an optical path of output light, a second reflecting surface that reflects the input light to the optical functional element, and a third reflecting surface that reflects the output light in a direction in which the output light becomes further away from an optical axis of the input optical fiber. An optical axis of a leaked light beam transmitted through the second reflecting surface after being reflected by the first reflecting surface or an extension line of the optical axis in an optical propagation medium does not include a portion that is aligned with an optical axis of the output light reflected by the third reflecting surface.