The present invention provides systems, methods, and apparatuses for subsea optical to electrical distribution. The present invention comprises one or more routing units adapted to convert optical signals to electrical signals and route the converted electrical signals to an appropriate end device. The routing unit is a compact device that may be installed without the use of heavy equipment.

An optical transmission module includes: a photoelectric conversion element that converts an electrical signal to an optical signal; a photoelectric conversion element-driving IC that drives the photoelectric conversion element; an optical fiber that transmits the optical signal; a guide holding member that holds the optical fiber; a cable that supplies power to at least one of the photoelectric conversion element and the photoelectric conversion element-driving IC; and a substrate on which the photoelectric conversion element and the photoelectric conversion element-driving IC are mounted. The substrate has first and second planes which are perpendicular to each other. The photoelectric conversion element is mounted on the first plane. The optical fiber is connected to a back side of the first plane. An optical axis of the optical fiber is perpendicular to the first plane. The cable is connected to the second plane in parallel with the optical axis of the optical fiber.

A fully connectorized optic fiber tap assembly is described that includes a first upstream connector interface configured to receive a downstream connector of a first upstream optic fiber line, and a first downstream connector interface configured to receive an upstream connector of a first downstream optic fiber line. The tap assembly further includes a set of service drop line connector interfaces. Moreover, an optic fiber tap of the assembly is configured to: receive an optical signal from the upstream connector interface, extract a portion of the optical signal, direct the extracted portion of the optical signal to the set of service drop line connector interfaces, and pass a remaining portion of the optical signal to the downstream connector interface. The fully connectorized optic fiber tap assembly is configured to be connected to the first upstream optic fiber line and the first downstream optic fiber line without splicing.

A method for connecting a number of users with at least one signal bearing optical fiber (110.sub.1÷z; 210.sub.1÷5) contained in an optical cable (105; 205) is proposed. The method comprises the following steps: a) interrupting said signal bearing optical fiber (110.sub.1÷z; 210.sub.1÷5) at a first branch point (115.sub.x|1; 215p.sub.1÷5), obtaining a first optical fiber segment (110.sub.x|1; 210i.sub.1÷5) upstream of said branch point (115.sub.x|1; 215p.sub.1÷5) and a second optical fiber segment (110.sub.x|2) downstream of said branch point (115.sub.x|1; 215p.sub.1÷5); b) providing an optical splitter (120.sub.x|1; 220p.sub.1÷5) at the branch point (115.sub.x|1; 215p.sub.1÷5), the optical splitter (120.sub.x|1; 220p.sub.1÷5) comprising an input and two outputs; c) coupling the first optical fiber segment (110.sub.x|1; 210i.sub.1÷5) with the input of the optical splitter (120.sub.x|1; 220p.sub.1÷5); d) coupling a first output of the optical splitter (120.sub.x|1; 220p.sub.1÷5) with a first user; e) coupling a second output of the optical splitter (120.sub.x|1; 220p.sub.1÷5) with a downstream optical fiber segment (110.sub.x|1; 210.sub.6÷8|1÷5) of an interrupted optical fiber (110.sub.x; 210.sub.6÷8) contained in the optical cable (105; 205), and f) coupling said downstream optical fiber segment (110.sub.x|1; 210.sub.6÷8|1÷5) with at least one further user at a further branch point (215s.sub.1÷5|a÷c) downstream said first branch point (115.sub.x|1; 215p.sub.1÷5).

An optical assembly includes a base plate, a light transmitting component arranged on the base plate, a lens component arranged on the base plate along an optical path of light transmitted from the light transmitting component, a supporting member, and an auxiliary member. The supporting member includes a bottom surface that bonds to the base plate and a side surface that connects to the auxiliary member. The auxiliary member includes a side surface on which the lens component is disposed and a bonding surface that bonds to the side surface of the supporting member. The lens component is configured to focus and couple, or collimate, an optical signal transmitted from the light transmitting component. A bottom surface of the auxiliary member and a bottom surface of the lens component are both higher than the top surface of the base plate.

Systems and methods for optical data communication in high temperatures and harsh environments are provided herein. The embodiments utilize a combination of a short wavelength light source combined with a wide bandgap detector in order to transmit optical signals. An optical data communication system may include a light source connected to a light detector via an optical fiber. The light source and the light detector may also be physically adjacent to any dielectric gap that can be spanned without having an optical fiber intermediary.

A Fibre Channel Forwarder (FCF) routing system includes a target device coupled to a Fibre Channel (FC) networking device via a first link, and a Fibre Channel Forwarder (FCF) device that is coupled to an initiator device via a second link, the FC networking device via a third link that is mapped to the second link, and the FC networking device via a fourth link that is mapped to the second link. The FCF device receives, via the second link, first traffic that originates from the initiator device and that is addressed to the target device. The FCF device determines, using an initiator device identifier included in the first traffic and a link mapping table, that the third link and the fourth link are mapped to the second link on which the first traffic was received and load balances the first traffic between the third link and the fourth link.

In a video signal transmission system using fiber optic cable, an improved optical transceiver module (fiber module) having integrated video signal processing capabilities can be used in video signal transmitters for video sources, video signal receivers for display devices, or video switching devices. The improved fiber module has a form factor complying with the Small Form-factor Pluggable standard, and a standard optical fiber connector. In addition to an optical transceiver, the improved fiber modules includes a ¼ inch signal processing chip programmed to perform video signal processing. The mainboard of the video signal transmitter or receiver or the video switching device has additional signal processing chips for processing non-video signals such as audio, data, network, RS-232, and IR remote control signals, but they do not perform video signal processing. Another embodiment is a fiber optic cable with an electrical signal connector module that integrates a video signal processing chip.

An object is to respectively provide excitations light from a plurality of light sources to an odd number of fiber pairs. Optical amplifiers are disposed in three fiber pairs including two optical fibers through which optical signals are transmitted, respectively. The optical multiplexer/demultiplexer has inputs connected to light sources and three outputs. An optical multiplexer/demultiplexer has inputs connected to light sources and three outputs. In optical multiplexers/demultiplexers, one input is alternatively connected to any one of the three outputs of the optical multiplexer/demultiplexer, the other input is alternatively connected to any one of the three outputs of the optical multiplexer/demultiplexer, one output is alternatively connected to one optical fiber of any one of the three pairs, and the other output is alternatively connected to the other optical fiber of any one of the three pairs.

Technologies for switching network traffic include a network switch. The network switch includes one or more processors and communication circuitry coupled to the one or more processors. The communication circuity is capable of switching network traffic of multiple link layer protocols. Additionally, the network switch includes one or more memory devices storing instructions that, when executed, cause the network switch to receive, with the communication circuitry through an optical connection, network traffic to be forwarded, and determine a link layer protocol of the received network traffic. The instructions additionally cause the network switch to forward the network traffic as a function of the determined link layer protocol. Other embodiments are also described and claimed.