In various aspects, an optical connector with a built-in photodetector for detecting light in the optical connector; an adapter for detachably receiving an optical connector, comprising an electrode configured to electrically contact an electrode of the optical connector; a connection apparatus comprising an arrangement of adapters for detachably receiving a plurality of optical connectors, each adapter comprising an electrode configured to electrically contact an electrode of the respective optical connector; a system with an interface configured to make an optical connection with an optical connector and a processing unit configured to receive from the connector an indication and to generate a feedback signal indicative of said indication; and/or an optical connector responsive to light to generate an electrical signal is provided.

Devices having at least one connector port associated with a rotating securing features are disclosed. A device for making optical connections comprising a shell, at least one connection port, and at least one rotating securing feature is disclosed. In one embodiment, the at least one connection port is disposed on a device with at the least one connection port comprising an optical connector opening extending from an outer surface of the device into a cavity of the device and defining a connection port passageway. The at least one rotating securing feature is associated with the connection port passageway, and the at least one rotating securing feature is secured to the device along a rotational axis that is not aligned with a longitudinal axis of the at least one connection port.

A flexible printed circuit board and optical network allocation device comprising same. The flexible printed circuit board comprises a circuit board body (1), a plurality of protruding interfaces (101) on the circuit board body, an adhesive layer (2) covering the upper surface of the circuit board body (1), components (102), and an uplink interface (103) used for information interaction with the components (102) on the circuit board body (1). Each protruding interface (101) is provided with an electronic label read/write interface (1011) used for reading electronic label information on an optical fiber head and an indicator (1012). The adhesive layer (2) is provided with an open window region (201) in the middle. The components (102) are immobilized on the upper surface of the circuit board body (1) and located in the open window region (201) of the adhesive layer, and are connected to the electronic label read/write interface (1011), the indicator (1012), and the uplink interface (103) respectively, used for controlling and monitoring the read/write information of the electronic label read/write interface (1011) and controlling on/off of the indicator (1012).

An optical module for preventing laser beam leakage and a control method thereof are disclosed. The optical module including a current control circuit, a first transistor, a laser, and a laser control unit. The laser control unit is configured to: if it is detected that an optical fiber is inserted in the optical fiber interface, perform control to turn on the laser, or if it is detected that no optical fiber is inserted in the optical fiber interface, control the laser to remain in an off state. A laser beam is effectively prevented from causing human bodily injury when an optical fiber is not inserted in an optical fiber interface.

An adapter block assembly includes at least one adapter block; a circuit board; a first contact set; and a second contact set. The contact sets are disposed at apertures defined in the adapter block and rotated 180° from each other. Each adapter block includes first and second latching arrangements that retain separately manufactured alignment arrangements against movement along the passages. The first latching arrangements include latching arms disposed at the apertures. The second latching arms include ramps and stops disposed opposite the apertures. Optical connectors suitable for plugging into the adapter block include an outer housing having an area of increased thickness of hold a storage device and an inner housing with a channel to accommodate the area of increased thickness of the outer housing.

Communication devices are disclosed. In an example embodiment, a communication device may include a communication module including an illumination source and a body element. The body element may be configured to allow illumination generated by the illumination source to propagate within and illuminate at least a portion of an outer surface of the body element.

A traceable cable assembly includes a traceable cable having at least one data transmission element, a jacket at least partially surrounding the data transmission element, and first and second tracing optical fibers extending along at least a portion of a length of the traceable cable. The traceable cable assembly also includes a connector provided at each end of the traceable cable. The first and second tracing optical fibers each have a light launch end and a light emission end. The light launch ends of the first and second tracing optical fibers each include a bend. The bend allows for launching of light into the light launch ends without disengaging the first or second connectors from corresponding connector receptacles.

An optical switching unit includes first to twelfth adapters and a panel portion. The panel portion has first to fourth regions. The first and second regions and the third and fourth regions are provided along the first direction, respectively, and the first and third regions and the second and fourth regions are provided along a second direction orthogonal to the first direction, respectively. In the first region, the first to third adapters are disposed along a first direction. The second adapter is located between the first and third adapters and a distance between the first and second adapters is longer than a distance between the second and third adapters. An engagement portion of the second adapter is provided at the side of the first adapter and an engagement portion of the third adapter is provided at the side opposite to the side of the second adapter.

An adapter block assembly includes an adapter block, a circuit board arrangement, and a cover attached to the adapter block so that the circuit board arrangement is held to the adapter block by the cover. Contact assemblies can be disposed between the adapter block and the circuit board arrangement. The cover can be latched, heat staked, or otherwise secured to the adapter block. Each component of the adapter block assembly can include one or more parts (e.g., multiple adapter blocks, multiple circuit boards, and/or multiple cover pieces).

Technologies are generally described to communicatively couple an optical fiber to an optical element using a polymer layer. An optical fiber may be coupled to an optical element, such as an optical waveguide or another optical fiber, using a layer of rewritable photorefractive polymer positioned between the optical fiber and the optical element. Light from a light source may be applied to the optical fiber to initiate a transient photorefractive effect in the polymer layer facilitating corrections of misalignment. A path of high refractive index may be formed in the polymer layer, where the path of high refractive index communicatively couples the optical fiber to the optical element reducing alignment concerns and increasing alignment tolerances of optical elements. In some examples, the path of high refractive index may be re-established by rewriting the polymer layer through another application of light from the light source if the communicative coupling is disrupted.