An optical module includes a housing; an optical adapter arrangement disposed at the housing; a cable inlet leading from an exterior of the housing to the interior of the housing; and a splice location disposed within the interior of the housing. Optical pigtails extend from the optical adapter arrangement to the splice location. Certain types of modules have a removable splice tray having a bend radius limiting arrangement surrounding multiple splice channels. Certain types of modules have first and second chambers separated by a wall defining a pass-through aperture.

A telecommunications device fixation assembly includes a bracket configured to be mounted to a telecommunications fixture, the bracket defining at least one planar wall and a device holder configured to be removably mounted to the bracket, the device holder defining a device holding portion and a fixation portion, wherein the fixation portion defines at least one pocket configured to receive an edge of the planar wall of the bracket, the fixation portion further including an elastically flexible latch configured to snap fit to a portion of the planar wall of the bracket to fix the device holder to the bracket.

An optical apparatus includes a package, a board, a plurality of first optical cables, and a first optical connector. The package includes an integrated circuit and an optical device that converts an electrical signal from the integrated circuit into an optical signal. The board includes a main surface, and the package is disposed on the main surface. Each of the plurality of first optical cables includes a plurality of optical fibers. Each of the plurality of first optical cables includes a first end portion and a second end portion on a side opposite thereto. Each of a plurality of the first end portions is optically coupled to the optical device, and each of a plurality of the second end portions is attached to the first optical connector. The first optical connector is disposed on the main surface of the board to be entirely located inside an edge of the board.

A floating quad connector assembly is designed to hold two pairs of simplex connecters in a quad formation and to permit the two pairs of connectors to float within the assembly, thereby rendering the quad connector assembly compatible with different quad adapters having different spacings between the two middle simplex ports. Also, a segmental switch module is configured to aggregate multiple category-rated connectors in an array formation while permitting the spacings between the connectors to float, thereby rendering the switch module compatible with port arrays of different port-to-port spacings.

A floating quad connector assembly is designed to hold two pairs of simplex connecters in a quad formation and to permit the two pairs of connectors to float within the assembly, thereby rendering the quad connector assembly compatible with different quad adapters having different spacings between the two middle simplex ports. Also, a segmental switch module is configured to aggregate multiple category-rated connectors in an array formation while permitting the spacings between the connectors to float, thereby rendering the switch module compatible with port arrays of different port-to-port spacings.

A light-emitting device includes a board, a light-emitting element mounted on a surface of the board, a support member on which the board is placed, and a cover having a plate shaped main cover body covering the light-emitting element and a tubular portion which receives a light guide body that guides light emitted from the light-emitting element. The main cover body includes a base, a protrusion protruding from the base toward the board, and a ridge disposed on a protruded end of the protrusion. A step is formed by the protrusion and the ridge, and the protrusion and the ridge extend in a same direction along the base.

An optical member includes a light guide made of a transparent material. The light guide has: an incident surface; an exit surface having exit portions and flat portions; a smooth surface arranged opposite to the flat portions; an upper surface and a lower surface arranged opposite to each other so as to connect the smooth surface and the exit surface; a first protrusion protruding from the upper surface; and a second protrusion protruding from the lower surface. The flat portions reflect the incident light toward the smooth surface by total reflection. The smooth surface reflects the reflected light reflected by the flat portion toward the exit surface by total reflection. The exit portions emit a part of the incident light or a part of light reflected by the smooth surface to the outside.

A fiber optic component holder for holding various sizes of fiber optical components or multiple fiber optical components includes a fiber optical component holder portion configured to hold a fiber optical component. The fiber optical component holder portion is configured to include a receiving portion between a first wall portion and a second wall portion, and the receiving portion is configured to receive a fiber optical component such that the fiber optical component urges a biasing portion to increase a dimension of the receiving portion, and wherein a biasing force of the biasing portion is configured to bias the fiber optical component against a retaining portion. The biasing portion is configured to permit the dimension of the receiving portion to be varied such that the fiber optical component holder portion is configured to receive fiber optical components having various dimensions and/or multiple fiber optical components having same or different dimensions.

A optoelectronic assembly is provided including a photonic integrated circuit (PIC) including at least one electronic connection element and plurality of waveguides disposed on a PIC face, a printed circuit board (PCB) including at least one PCB electronic connection element, which is complementary to the at least one electronic connection element of the PIC and the PIC is configured to be flip chip mounted to the PCB, a lidless fiber array unit including a support substrate having a substantially flat first surface and a signal fiber array including a plurality of optical fibers supported on the first surface, and an alignment substrate disposed on the PIC face and configured to align the plurality of optical fibers of the signal fiber array with the plurality of waveguides.

A method for fabrication a multifiber cable assembly is provided. The method includes selecting a plurality of optical fibers that each have a respective cladding diameter, determining a maximum fiber core position error for the plurality of optical fibers in a plurality of configurations, and determining a desired order of the plurality of optical fibers that minimizes the maximum fiber position total error.