Alliance Fiber Optic Products, Inc.

Corning Incorporated

Alliance Fiber Optics Products, Inc.

Ximao Feng

Andy Fenglei Zhou

Wen-Lung Kuang

Yao Li

Shudong Xiao

Pushkar Tandon

Scott Robertson Bickham

Kevin Wallace Bennett

Ruchi Sarda Tandon

Lars Martin Otfried Brusberg

Bryan William Wakefield

Gang Xu

Chunlei He

Chia-Hang Chang

Kenhao Liu

The high-density FAU comprises a support substrate having a grooved front-end section that supports glass end sections of the small diameter low-attenuation optical fibers. A cover is disposed on the front-end section and secured thereto to hold the glass end sections in place. The substrate and the cover can be made of the same glass or glasses having about the same CTE. The glass end sections have a diameter d4 so that the pitch P2 of the fibers at the front end of the FAU can be equal to or greater than d4, wherein d4=2r, with rbeing the radius of the glass end section as defined by the optical fiber cladding. The glass end section has a radius rless than 45 microns, allowing for a high-density FAU and a high-density optical interconnection device.

High-density FAUs and optical interconnection devices employing small diameter low attenuation optical fiber

Detachable optical connectors for optical chips and methods of their fabrication are disclosed. In one embodiment, an optical connector includes a ferrule that supports ferrule waveguides. The optical connector further includes a waveguide support coupled to the ferrule and that supports transition waveguides that are optically coupled to the ferrule waveguides. Ends of the ferrule waveguides are exposed at one end of the ferrule to define a first pitch while ends of the second waveguides are exposed at a chip coupling surface of the waveguide support. The transition waveguides provide at least one type of transition for the guided light traveling within the ferrule waveguides to enable either edge coupling, surface coupling or evanescent coupling to chip waveguides of an optical chip. The transition can include a change in mode-field diameter, direction of the guided light, and/or pitch.

Optical connectors and detachable optical connector assemblies for optical chips

A fiber array unit (FAU) includes a substrate, a cover element, and a plurality of optical fibers each including a splice joint connecting fibers of different mode-field diameters with a recoating material arranged over at least a portion of the fibers overlapping the substrate, wherein stripped portions of the fibers are arranged in grooves between the substrate and the cover element. A method for fabricating a compact FAU includes splicing ends of stripped sections of first and second optical fiber segments of different mode-field diameters, applying a recoating material over at least portions of the stripped sections, positioning portions of stripped sections of the second optical fiber segments in grooves defined in a substrate, and arranging a cover over the grooves. Certain embodiments include stripping recoating material portions of the second optical fiber segments before they are placed in the grooves.

Fiber array units with mode-field diameter conversion, and fabrication method

A fiber array unit (FAU) connector includes a support substrate having a rear-end section and an elevated front-end section. The front-end section has a top surface with fiber grooves that support bare glass sections of optical fibers, which have respective fiber end faces that reside at a front end face defined by the front-end section. Two alignment pins reside in parallel alignment pin channels on opposite sides of the fiber grooves. The alignment pin channels terminate at respective front-end recessed surfaces that are axially spaced from the front end face. The alignment pins extend from the alignment pin channels to be even with the front end face. A cover secured to the front-end section holds the bare glass sections of the optical fibers and the alignment pins in place. Alignment sleeves are used to establish pin-to-pin alignment of confronting FAU connectors.

FAU connectors and assemblies employing pin-to-pin alignment

A polarization maintaining fiber array includes a substrate, a cover, and at least two polarization maintaining optical fibers. The substrate includes at least two main grooves, a first additional groove, and a second additional groove, wherein the main grooves are positioned between the first additional groove and the second additional groove. The fiber array includes at least two polarization maintaining optical fibers positioned in the at least two main grooves, a first dummy fiber positioned in the first additional groove, and a second dummy fiber positioned in the second additional groove. The cover is positioned such that it contacts the polarization maintaining optical fibers, the first dummy fiber, and the second dummy fiber.

Polarization maintaining fiber array with increased polarization extinction ratio and method of making

A bend inducing fiber array unit is provided comprising first and second anti-recovery plates and a V-groove chip. Opposing lateral anti-recovery plates are arranged on opposite sides of the first and second anti-recovery plates. Lateral edges on a common side of the anti-recovery plates are secured to a common face of one of the opposing lateral anti-recovery plates to fix the first and second anti-recovery plates relative to each other. A guided portion of the array of optical fibers is positioned in the fiber accommodating grooves of the V-groove chip and the V-groove chip is secured to the second anti-recovery plate such that the fiber accommodating grooves and a fiber guiding face of the first anti-recovery plate are fixed at a relative angle &#x3b8; approximating the bend in the array of optical fibers.

Bend inducing fiber array unit

An apparatus comprises a first array of angled ferrules and a second array of angled ferrules, a plurality of angled fibers, wherein first ends of the plurality of angled fibers are held in the first array of angled ferrules and second ends of the plurality of angled fibers are held in the second array of angled ferrules, a first array of non-angled ferrules and a second array of non-angled ferrules, a first plurality of non-angled fibers held in the first array of non-angled ferrules, a second plurality of non-angled fibers held in the second array of non-angled ferrules, wherein the first array of angled ferrules is aligned and connected with the first array of non-angled ferrules and the second array of angled ferrules is aligned and connected with the second array of non-angled ferrules.

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San Mateo, CA, United States of America

Ximao Feng