An optical transceiver includes an internal fiber that optically connects an optical modulator and a VOA, the internal fiber having a lower limit of bending radius, a guide that includes an arc-shaped convex surface, and a lower housing having an internal space and includes the optical modulator, the VOA, the internal fiber, and the guide. The arc-shaped convex surface of the guide and the inner wall of the lower housing forms an arc-shaped path that houses a portion of the internal fiber and bent the portion of the internal fiber with a bending radius larger than the minimum bending radius.

Methods of assembling polarization-maintaining (PM) optical fiber assemblies includes inserting optical fibers through channels of a receptacle with ends of extending past a front face of the receptacle. The first ends are radiated causing the initial fiber diameter to expand and results in an enlarged fiber diameter and forms an enlarged portion for a desired length along the PM optical fibers. The birefringent elements of the optical fibers are aligned to present a desired orientation and the optical fibers are further retracted until the enlarged portions abut the corresponding channels to mechanically lock the orientation of the optical fibers. The optical fiber assembly is further finished to maintain the polarity from the first end to a second end.

A new fiber optic connector provides a smaller form factor by including two ferrule assemblies in a housing. The housing accepts a push-pull mechanism that allows for insertion and removal from a carrier as well as an adapter. The push-pull mechanism may also include a flexure member to return the push-pull mechanism. Polarity of the fiber optic connector may also be selected by use of the push-pull mechanism.

Optical fiber connectors configured to allow ease of change of the connector polarity by providing lockable outer housing. In an embodiment, an optical fiber connector comprises an inner housing, at least one key configured to move along the inner housing so as to change a polarity of said optical fiber connector, and an outer housing disposed around at least a portion of the inner housing and configured to slide in a longitudinal direction so as to expose at least a portion of said at least one key, wherein the outer housing includes a flexible portion configured to lock to the inner housing so as to retain the outer housing in a pulled back position relative to the inner housing. A removable alignment key is reattached to the connector to correspond to a first or second polarity.

A new fiber optic connector provides a smaller form factor by including two ferrule assemblies in a housing. The housing accepts a push-pull mechanism that allows for insertion and removal from a carrier as well as an adapter. The push-pull mechanism may also include a flexure member to return the push-pull mechanism. Polarity of the fiber optic connector may also be selected by use of the push-pull mechanism.

Structured multicore fiber optic cabling systems, network components, and methods of making same. The cabling system includes a multicore fiber optic cable assembly and a plurality of network components. Each cable assembly includes first and second cable connectors and a plurality of multicore optical fibers. One half of the plurality of multicore optical fibers have a first draw direction, and the other half of the plurality of multicore optical fibers have a second draw direction opposite the first draw direction. The first and second cable connectors are configured so that their end faces define a connector core pattern having mirror-image symmetry. Each network component of the cabling system includes a port connector having a port connector interface that has the connector core pattern. Core polarity is preserved between a first network component and a second network component of the plurality of network components connected by the cable assembly.

Optical fiber connectors configured to allow ease of change of the connector polarity by providing lockable outer housing. In an embodiment, an optical fiber connector comprises an inner housing, at least one key configured to move along the inner housing so as to change a polarity of said optical fiber connector, and an outer housing disposed around at least a portion of the inner housing and configured to slide in a longitudinal direction so as to expose at least a portion of said at least one key, wherein the outer housing includes a flexible portion configured to lock to the inner housing so as to retain the outer housing in a pulled back position relative to the inner housing.

A new fiber optic connector provides a smaller form factor by including two ferrule assemblies in a housing. The housing accepts a push-pull mechanism that allows for insertion and removal from a carrier as well as an adapter. The push-pull mechanism may also include a flexure member to return the push-pull mechanism. Polarity of the fiber optic connector may also be selected by use of the push-pull mechanism.

Optical fiber connectors configured to allow ease of change of the connector polarity by providing lockable outer housing. In an embodiment, an optical fiber connector comprises an inner housing, at least one key configured to move along the inner housing so as to change a polarity of said optical fiber connector, and an outer housing disposed around at least a portion of the inner housing and configured to slide in a longitudinal direction so as to expose at least a portion of said at least one key, wherein the outer housing includes a flexible portion configured to lock to the inner housing so as to retain the outer housing in a pulled back position relative to the inner housing.

An optical connector is disclosed. The optical connector provides a first plug, a second plug, a sleeve, a spring, and a shell. The first plug and the second plug jointly rotate without rubbing end surfaces of ferrules thereof. The second plug provides a projection, while, the shell provides a hollow that receives the projection of the second plug. The first plug is pushed against the second plug by the spring put between the first plug and the shell but unable to be detached from the second plug because of the projection of the second plug mated with the hollow of the shell, thereby the ferrules in the respective plugs make physical contact in the respective end surfaces.