Implementations described and claimed herein provide systems and methods for a configurable optical peering fabric to dynamically create a connection between participant sites without any physical site limitations or necessity of specialized client and network provider equipment being located within such a facility. Client sites to a network may connect to a configurable switching element to be interconnected to other client sites in response to a request to connect the first client site with a second site, also connected to network, via the switching element. A request may trigger verification of the requested and, upon validation, transmission of an instruction to the switching element to enable the cross connect within the switching element. The first site and the second site may thus be interconnected via the switching element in response to the request, without the need to co-locate equipment or to manually install a jumper between client equipment.

A WSS is provided. The WSS includes a first common port, a second common port, a grating, a spatial light modulator, and a plurality of branch ports. The first common port is configured to receive a first-band optical signal, and the second common port is configured to receive a second-band optical signal. The grating is configured to perform wavelength demultiplexing on the first-band optical signal and the second-band optical signal, to output a plurality of first optical signals, where the first optical signals are optical signals of a single wavelength.

Embodiments of the present invention provide an optical branching assembly, a passive optical network, and an optical transmission method, which relate to the field of communications and are used to implement a functional diversity of the optical branching assembly. The optical branching assembly includes: a substrate and an optical power distribution area disposed on a surface of the substrate, where the optical power distribution area is coupled to a first optical waveguide, multiple second optical waveguides, and at least one third optical waveguide, and is used to distribute optical power of an optical signal, transmitted through the first optical waveguide, to each of the second optical waveguides and the at least one third optical waveguide; and the third optical waveguide is coupled to the first optical waveguide, where a reflective material is disposed on the third optical waveguide.

An optical trunk switch is configured to support an OTDR. The system includes a transmit switch having two inputs and outputs, the first input is configured to connect to a signal input, the second input is configured to receive a OTDR signal, the first output is configured to connect to one of a primary fiber and a standby fiber, and the second output is configured to connect to the other fiber. The system further includes a receive switch having two inputs and outputs, the first input is configured to connect to one of the primary fiber and the standby fiber, the second input is configured to connect to the other fiber, the first output is configured to connect to a signal output, and the second output is configured to connect to a OTDR signal; and one or more OTDR ports.

An optical cross-connect component mutually connecting an end of a first optical fiber group and an end of a second optical fiber group is disclosed. The optical cross-connect component includes a plurality of first connectors housing therein the end of the first optical fiber group, and a plurality of second connectors housing therein the end of the second optical fiber group. The m×n optical fibers in the first optical fiber group are housed in any of the plurality of first connectors, and the m×n optical fibers in the second optical fiber group are housed in any of the plurality of second connectors. The end of the first optical fiber group and the end of the second optical fiber group are connected so as to be butted to each other.

A method and system implementations thereof include receiving data from a passive optical network (PON) outside a building; wirelessly transmitting the received PON data to inside the building; and applying the received PON data to a network inside the building. The data received outside the building is from an optical line termination (OLT). The PON data wireless transmitted inside the building may be applied to an optical line terminal (ONT) inside the building. Alternatively, the wirelessly received PON data may be converted to Ethernet format and applied to a user interface and/or a gateway interface all inside the building. The wireless transmission of PON data may be via a first transceiver mounted on a surface outside the building and a second transceiver mounted on a surface inside the building. The surface may be a corridor, a window, a door, a walls and a façade.

A first device transmits a first Fibre Channel frame with a first priority to a second device. The first device receives a second Fibre Channel frame from the second device, where the second Fibre Channel frame has a second priority indicated by the second device. The first device determines whether to adopt the second priority indicated by the second device or whether to continue to use the first priority for transmitting subsequent Fibre Channel frames to the second device.

Methods and systems for bias control in an optical switch fabric include monitoring optical power at outputs of a plurality of switch elements in an N×N switch fabric that has N inputs, N outputs, and M≧2 stages. A bias control of a first of the plurality of switch elements is adjusted. It is determined whether the optical power at the outputs of the first switch element after bias control adjustment conform more closely to a predetermined criterion relative to the monitored optical power at the outputs of the first switch element prior to adjustment. The adjusting and determining steps are repeated for each of the remainder of the plurality of switch elements.

Systems and methods are provided for amplifying optical signals within one of two optical bands, such as C-band and L-band. An optical amplifying device, according to one implementation, may include a shared optical coil configured to propagate an optical signal. The optical amplifying device may further include a first junction configured to separate the shared optical coil into a first-band optical fiber and a second-band optical coil and a pump device configured to amplify the optical signal in the shared optical coil and the second-band optical coil. The first-band optical fiber may be configured to propagate the optical signal when the optical signal resides in a channel of a first plurality of channels within a first optical band. The second-band optical coil may be configured to propagate the optical signal when the optical signal resides in a channel of a second plurality of channels within a second optical band.

Aspects of the present disclosure describe systems, methods. and structures directed to an integrated 3-way branching unit switch module suitable for undersea application.