An optical fiber connecting component includes a glass plate having a plurality of first through holes, a resin ferrule fixed to the glass plate and having a plurality of second through holes that are each coaxial with corresponding one of the plurality of first through holes, and a plurality of optical fibers including a glass fiber and a resin coating that covers the glass fiber. The glass fiber exposed from a tip of each of the optical fibers is held in corresponding one of the first through holes and corresponding one of the second through holes, and a material for the resin ferrule has a flexural modulus of 5 GPa or more at 200° C.

The present disclosure relates to lensed optical fiber connector ferrule end faces having molded contact surfaces. The contact surfaces reduce ferrule end face contact area and thereby reduce the influence of trapped dust and debris on lens angular misalignment.

An optical module includes first and second optical fibers, and first and second optical fiber collimators, that are arranged in a light path. The first optical fiber collimator has a first core and a first cladding layer surrounding the first core. The second optical fiber collimator has a second core and a second cladding layer surrounding the second core. The first optical fiber has a third core. The second optical fiber has a fourth core. When the third core has a diameter smaller than the fourth core, a refractive-index difference between the first core and the first cladding layer is larger than that between the second core and the second cladding layer. When the third core has a core diameter larger than the fourth core, the refractive-index difference between the first core and the first cladding layer is smaller than that between the second core and the second cladding layer.

There is provided a light emitting element and an optical waveguide that propagates light from the light emitting element. For example, the optical waveguide is an optical fiber or a silicon optical waveguide. The light propagating through the optical waveguide is light having components of a fundamental mode and a first order mode, and the light propagates through the optical waveguide while having a light intensity distribution in which high intensity portions alternately appear in one direction and another direction opposite to the one direction with respect to the center of a core along the optical waveguide. A light intensity distribution at an output end surface of the optical waveguide is a light intensity distribution corresponding to an intermediate position between a first position where the high intensity portion is in the one direction and a second position where the high intensity portion is in the another direction. In a case of propagating the light having the components of the fundamental mode and the first order mode, it is possible to obtain favorable coupling efficiency regardless of a direction of an optical axis deviation, as in a case of propagating light having only the component of the fundamental mode. A cost is thus reduced by reducing accuracy of positional deviation.

An optical fiber array includes a plurality of single-core fibers each having a core and a cladding and each having, in a distal end surface thereof, a beam expanding portion capable of expanding a mode field diameter (MFD) of light propagating in the core, and a ferrule having an optical fiber holding hole into which the plurality of single-core fibers are inserted, and an end surface in which the optical fiber holding hole opens. A cladding diameter of each of single-core fiber in the beam expanding portion decreases toward the distal end surface. The optical fiber holding hole has a tapered portion whose inner diameter decreases toward the end surface and against which the distal end surfaces abut.

The present disclosure relates to the field of communication technology, and provides a connector for photoelectric hybrid in free space of magnetic absorption comprising matching a male connector and a female connector and provided with a conductive pin and an electrical contact used for conduction, an optical communication module for optical communication and comprising optical fiber connector and lens capable of expanding the light beam output to each other, a spacing formed between the two lenses, and the male connector and the female connector aligned and remained in a plug-in state through a magnetic field. Furthermore, a guiding structure is provided to embody precise alignment of the lens of the male connector and the lens of the female connector. The connector can transmit both optical signals and electrical signals, and has the characteristics of high processing yield, high reliability, and convenient use.

An OSFP optical transceiver having split multiple fiber optical port using reduced amount of MPO terminations is provided that includes two adjacent sockets integrated into the optical port of the OSFP optical transceiver. The two adjacent sockets are vertically oriented with respect to the mounting baseplate of the OSFP optical transceiver, and each of the two adjacent sockets is adapted to receive an MPO receptacle that terminates the proximal end of a bundle of fibers. The OSFP optical transceiver also includes an optical connection between each socket and a corresponding lens in the OSFP optical transceiver, for transmitting optical signals received from other transceivers into the OSFP optical transceiver and optical signals generated in the OSFP optical transceiver to other transceivers.

Fiber optic connectors having a sealing membrane such as a foil or the like disposed on the front end of the connector housing for inhibiting dirt, debris or dust from reaching a ferrule end face are disclosed. The fiber optic connectors may have one or more ferrules with a mating end face that is located rearward of a front end of a connector housing of the fiber optic connector. The sealing membrane is disposed on the front end about a perimeter of the connector housing for inhibiting contaminants from reaching the one or more mating end faces of the respective ferrules until the fiber optic connector is desired to be mated. The sealing membrane is quick and easy to remove and/or pierce, thereby allowing optical mating of the fiber optic connector while providing single-use contaminant protection beforehand.

A multi-fiber ferrule has lenses that have different prescriptions to disperse the light emitted from the multi-fiber ferrule. Alternatively, the lens for each individual optical fiber can be moved relative to the optical fiber or the optical fiber opening in the multi-fiber ferrule to cause the laser beam exiting the multi-fiber ferrule to be redirected into a structure that absorbs or blocks the laser.

An optical system may include an objective lens system having a primary optical axis and a relay lens system having a relay optical axis. The relay optical axis may have a first angular offset with respect to the primary optical axis. The objective lens system may be configured to provide light from a light source to the relay lens system and provide light from the relay lens system to an image sensor. The relay lens system may be configured to provide light from the objective lens system to an end face of an optical fiber, where the end face has a second angular offset with respect to a cross-sectional axis of the optical fiber. The relay lens system may provide light reflected from the end face to the objective lens system.