An optical ferrule assembly includes a hybrid optical ferrule having a glass portion assembled to a polymeric portion. The polymeric portion includes a groove for receiving and supporting an optical fiber having opposing open front and back ends. A light redirecting member includes an input surface for receiving light from the optical fiber and a light redirecting side. The open back end of the groove and the input surface define a recessed region therebetween. The glass portion includes an optically transparent glass insert disposed in the recessed region conforming in shape to an internal shape of the recessed region. An optical fiber is received and supported in the groove. The optical fiber includes a fiber end laser welded to the glass insert so that a central light ray from the optical fiber propagates through the glass insert before being received and redirected by the light redirecting side.

A manufacturing method for manufacturing a multi-fiber connector, including: shaping a part of each of a plurality of optical fibers such that a part of an outer peripheral surface of a glass fiber including one end portion becomes a flat surface; arranging each of the plurality of optical fibers in a positioning component such that the entire flat surface protrudes from the positioning component; rotationally aligning each of the plurality of optical fibers such that the flat surface comes into contact with a reference surface of a jig; fixing each of the plurality of optical fibers to the positioning component; and cutting and removing a part of the glass fiber which protrudes from the positioning component and includes the flat surface and grinding a cut surface of each of the plurality of optical fibers which is exposed from the positioning component.

A fiber optic cassette includes a body defining a front and an opposite rear. A cable entry location is defined on the body for a cable to enter the cassette, wherein a plurality of optical fibers from the cable extend into the cassette and form terminations at non-conventional connectors adjacent the front of the body. A flexible substrate is positioned between the cable entry location and the non-conventional connectors adjacent the front of the body, the flexible substrate rigidly supporting the plurality of optical fibers. Each of the non-conventional connectors adjacent the front of the body includes a ferrule, a ferrule hub supporting the ferrule, and a split sleeve surrounding the ferrule.

Methods, devices, and systems for welding optical fibers and perforated elements by pulsed laser beam are provided. In one aspect, a method includes focusing a pulsed laser beam onto a region of a joining surface formed by an outer circumference of an optical fiber and an inner circumference of a hole of a perforated element, a beam direction of the pulsed laser beam running in an axial direction of the joining surface, and moving a laser focus of the pulsed laser beam in the region axially in or counter to the beam direction to produce at least one weld seam in the region. The optical fiber and the perforated element are locally melted in the region by the pulsed laser beam focused into a material of the optical fiber and a material of the perforated element and are thereby welded to one another.

A ferrule-based fiber optic connectors having a ferrule retraction balancing characteristic for preserving optical performance are disclosed. The fiber optic connector comprises a connector assembly, a connector sleeve assembly and a balancing resilient member. The connector assembly comprises a ferrule and a resilient member for biasing the ferrule forward and the connector sleeve assembly comprises a housing and a ferrule sleeve, where the connector assembly is at least partially disposed in the passageway of the housing and the ferrule of the connector assembly is at least partially disposed in the ferrule sleeve. The balancing resilient member biases the housing to a forward position with the biasing resilient member having a predetermined resilient force that is greater than the friction force required for displacement of the ferrule within the ferrule sleeve.

A fiber optic cassette includes a body defining a front and an opposite rear. A cable entry location is defined on the body for a cable to enter the cassette, wherein a plurality of optical fibers from the cable extend into the cassette and form terminations at non-conventional connectors adjacent the front of the body. A flexible substrate is positioned between the cable entry location and the non-conventional connectors adjacent the front of the body, the flexible substrate rigidly supporting the plurality of optical fibers. Each of the non-conventional connectors adjacent the front of the body includes a ferrule, a ferrule hub supporting the ferrule, and a split sleeve surrounding the ferrule.

Aspects and techniques of the present disclosure relates to an improved process for easily securing an optical fiber within a ferrule of a fiber optic connector which negates the use of epoxies or adhesives. The present disclosure further relates to a method for anchoring an optical fiber in a connector of the kind described, where a solvent agent is used rather than epoxies or adhesives.

The present invention provides an optical signal transmission device, including a lens base, a cover plate, an optical fiber plug and a printed circuit board (PCB), wherein an insert block is formed at a front end of the optical fiber plug, and a plurality of optical fibers penetrate the optical fiber plug; a socket is provided at a rear end of the lens base, the insert block is inserted into the socket and the two closely cooperate with each other; a recess is provided in the top of the lens base, and a reflective bevel is formed on the inner wall of the recess; and the cover plate is stacked on the top of the lens base, downwardly-extending fastening plates are respectively formed at peripheral edges of the cover plate.

A method of manufacturing a fiber ferrule assembly that includes inserting an exposed end portion of a plurality of optical fibers including a core and a cladding into an array of insertion holes disposed in a glass ferrule plate. The glass ferrule plate includes a glass material that differs from a glass material of both the core and the cladding. The method further includes chemically etching the glass ferrule plate and the exposed end portion of the plurality of optical fibers using a chemical etchant for an etching time period. The glass ferrule plate etches at a first etching rate, the exposed end portion etches at a second etching rate, and the first etching rate is faster than the second etching rate such that, after the etching time period, the exposed end portion of each of the plurality of optical fibers protrude from a second surface of the glass ferrule plate.

A method of terminating an optical fiber having an inner core with a fiber optic connector including a ferrule having a micro-bore and an end face with a mating location is disclosed. The method includes determining a bore bearing angle of a bore offset of the micro-bore in the ferrule; determining a core bearing angle of a core offset of the inner core in the optical fiber; orienting the ferrule and the optical fiber relative to each other to minimize the distance between the inner core and the mating location; heating the ferrule to an processing temperature above room temperature; and coupling the optical fiber to the micro-bore of the ferrule. The size of the micro-bores and optical fibers may be selected to maximize the number of interference fits in a population of ferrules and optical fibers while minimizing failed fittings between the ferrules and optical fibers in the populations.