In some embodiments, the present disclosure is directed at an optical fiber connector that occupies a small volume, and can therefore fit into small optical modules. In some embodiments, the optical fiber connector may comprise a removable faceplate. During installation, the faceplate may be removed to allow an optical fiber plug with a flange to be placed within the optical fiber connector. The flange may comprise one or more spring tabs. The faceplate may then be re-attached to the optical fiber connector, wherein at least a portion of the faceplate engages with the flange and secures the optical fiber plug with the optical fiber connector. The one or more spring tabs may also engage with the removable faceplate, thereby holding the optical fiber plug in place so as to ensure proper light transmission from the fiber to an opposing fiber.

An alignment sleeve for an optical fiber adapter includes features to bring precision alignment between optical fiber cores. The sleeve includes a tubular inner area to accept first and second ferrule ends of first and second connectors. First and second tabs project from first and second ends of the sleeve. The first and second tabs slide into holes in the ferrule holders or barrels of the first and second connectors, so as to provide rotational alignment of the first and second ferrules, which may be presenting multi-core optical fibers. A mid-portion of the sleeve may include geometrical features to enable a snap fit of the sleeve into a housing of the adapter. More than one tab may be employed at the ends of the sleeve, and the tabs may have defined spacing and/or dimensions to enable security keying, only permitting coupling between connectors possessing matching holes in the ferrule barrels.

There is provided an optical assembly (100) comprising an optical fiber arrangement (220, 230) and a lens arrangement (120). The lens arrangement (120) is spatially disposed relative to the fiber arrangement (220, 230) so as to be capable of providing an axial substantially collimated beam of radiation in response to receiving radiation from the optical fiber arrangement (220, 230) and capable of providing a focused beam of radiation to the optical fiber arrangement (220, 330) in response to receiving substantially collimated radiation to the lens arrangement (120). The assembly (100) further comprises a configuration of elements (110, 130, 200, 260) for spatially disposing the optical fiber arrangement (220, 230) relative to the lens arrangement (120). The configuration of elements (110, 130, 200, 260) provides for independent adjustment of relative lateral position between the optical fiber arrangement (220, 230) and the lens arrangement (120) in relation to axial position of the optical fiber arrangement (220, 230) relative to the lens arrangement (120). Such independent adjustment assists in fabrication of the assembly (100).

A composite structure includes a base and an auxiliary portion of dissimilar materials. The auxiliary portion is shaped by stamping. As the auxiliary portion is stamped, it interlocks with the base, and at the same time forming a desired structured feature on the auxiliary portion, such as a structured reflective surface, an alignment feature, etc. With this approach, relatively less critical structured features can be shaped on the bulk of the base with less effort to maintain a relatively larger tolerance, while the relatively more critical structured features on the auxiliary portion are more precisely shaped with further considerations to define dimensions, geometries and/or finishes at relatively smaller tolerances. The auxiliary portion may include a composite structure of two dissimilar materials associated with different properties for stamping different structured features.

In order to retain a multi-core adapter securely to a holder for an optical adapter so as to prevent the multi-core adapter from coming off from the holder even in the case that a stress pulling an optical connector plug in a downward direction or a stress in a direction of pushing the adapter to the holder for the optical adapter acts on the plug in a state in which the optical connector plug is inserted into the multi-core adapter, the holder for the optical adapter to which the multi-core adapter for interconnecting a pair of facing LC type optical connector plugs is provided with a plurality of receiving portions which are arranged within an approximately rectangular tubular casing so as to be adjacent via a reinforcing intermediate partition portion, and is formed by fitting and arranging the multi-core adapters in the receiving portions.

Optical fiber connector assembly for a fiber optic cable includes an optical fiber having an end portion terminated with a ferrule. The optical fiber connector assembly includes: a sleeve configured to at least partially house the end portion of the optical fiber terminated with the ferrule; a connector including a body extending lengthwise and having an internal passageway for the sleeve, the body having a distal portion, configured to house the sleeve and to mate with a corresponding receptacle, and a proximal portion configured to be coupled to an end portion of the fiber optic cable, the proximal portion having on its lateral surface at least one aperture; and a crimping element adapted to couple the proximal portion of the body to the end portion of the fiber optic cable at the at least one aperture. A pre-connectorized fiber optic cable includes a fiber optic cable and the optical fiber connector assembly mounted upon an end portion of the fiber optic cable.

A fiber optic adapter assembly is provided with a floating adapter module. The adapter assembly includes a housing, an adapter module, and a single biasing member disposed in the housing and concentrically aligned with the adapter module. The single biasing member can bias the adapter module in a direction toward an end of the housing and be compressible in the opposite direction toward the other end of the housing.

A fiber optic connector and cable assembly includes a cable with one or more strength members secured to a connector that is connectable to both a hardened and a non-hardened fiber optic adapter. The cable can include multiple cable types with various shapes and strength member configurations. The connector includes a connector housing having a one-piece main body and a cover piece mounted thereon. The one-piece main body defines a plug portion compatible with the adapters. A ferrule assembly is mounted in the plug portion and biased outwardly by a spring. An insert within the connector housing includes a spring stop for holding the spring and a cable retention portion for securing the strength members of the cable. The spring stop and the cable retention portion can be included on a one-piece insert or they can separately be included on separate inserts. The cable retention portion of the insert and the cover piece can take various forms suited for a particular cable of a given fiber optic connector and cable assembly.

A multi-polarity fiber optic connector is configured to provide a plurality of connector polarity options. Two LC connectors are grouped together using a duplex cable boot assembly which is secured over a backpost extending from a plug frame of each LC connector. Each LC connector has a release latch attached to the outer surface of the plug frame. A dual release latch has a hook that secures the dual release latch to the duplex cable boot. The dual latch release is configured to depress each LC connector latch release together. To change the duplex LC connector from a first polarity to a second polarity, a user pulls on one of the two cable boots that makes up the duplex cable boot assembly and then rotates each LC connector housing, or the user pulls on the dual latch release and then rotates each LC connector housing. User rotates each LC connector housing 180 degrees about a longitudinal axis of the LC connector to change the connector polarity from a first polarity to a second polarity where the first polarity is opposite the second polarity.

A coaxial transmitter optical subassembly (TOSA) including an optical fiber coupling receptacle coupled to a laser package may be used in an optical transceiver for transmitting an optical signal at a channel wavelength. The optical fiber coupling receptacle may include a housing having a first open end to receive a ferrule-terminated optical fiber. The receptacle may also include a fiber-coupling ferrule holding an optical fiber segment and secured within the housing to optically couple the optical fiber segment to a laser of the TOSA through a second open end of the housing opposite the first open end. The receptacle may further include a sleeve disposed on an interior surface of the housing to provide a cavity to secure the ferrule-terminated optical fiber and align the optical fiber to the optical fiber segment.