Cisco Technology, Inc.

General Electric Company

Weizhuo Li

Vipulkumar K Patel

Mark Andrew Webster

Sean P Anderson

Tao Ling

Norbert Schlepple

Shiyi Chen

David Mulford Shaddock

David Piede

Stacey Joy Kennerly

Aaron Jay Knobloch

Rao Yelamarty

Jean-Luc Joseph Tambasco

Jock T Bovington

Neeraj Kumar Dubey

David William Vernooy

Kal Shastri

The optical devices described herein include a lens arrangement for coupling light between light sources and optical fibers with a reduced size compared to the use of optical waveguides, while also allowing for the use of power sensitive optical components, such as components with lower power density configurations. The lens arrangements include a collimating lens, a focusing lens, and at least one optical component positioned between the collimating lens and the focusing lens.

Dual lens optical coupling to multicore fiber

Embodiments include a fiber to photonic chip coupling system including a collimating lens which collimate a light transmitted from a light source and an optical grating including a plurality of grating sections. The system also includes an optical dispersion element which separates the collimated light from the collimating lens into a plurality of light beams and direct each of the plurality of light beams to a respective section of the plurality of grating sections. Each light beam in the plurality of light beams is diffracted from the optical dispersion element at a different wavelength a light beam of the plurality of light beams is directed to a respective section of the plurality of grating sections at a respective incidence angle based on the wavelength of the light beam of the plurality of light beams to provide optimum grating coupling.

Broadband optical coupling using dispersive elements

An apparatus includes a ribbon, an optical waveguide, and an IC. The ribbon includes a first end. The optical waveguide is disposed within the ribbon and terminates at the first end. The IC includes a curved surface. The first end of the ribbon bends to mate with the curved surface such that the optical waveguide is optically coupled to a corresponding waveguide in the IC.

Opto-electrical flexible glass interposer

A system includes an optical source, an integrated circuit, an optical fiber, and a polarization controller. The optical source is arranged emit an optical signal. The integrated circuit includes a mirror. The optical fiber carries the optical signal from the optical source to the integrated circuit. The mirror reflects a transverse magnetic component of the optical signal through the optical fiber to the optical source. The polarization controller adjusts, based on the transverse magnetic component, the optical signal emitted from the optical source such that the transverse magnetic component is reduced.

Forward polarization control for remote laser

A system and related method and assembly are disclosed. The system comprises one or more optical fibers configured to propagate one or more optical signals. The system further comprises at least a first cylindrical lens element fixedly connected with the one or more optical fibers and configured to expand the one or more optical signals along a predefined dimension. The system further comprises at least a second cylindrical lens element optically coupled with the first cylindrical lens element and configured to condense the expanded one or more optical signals along the predefined dimension.

Optical fiber coupling using multiple cylindrical lenses

Embodiments herein include an optical system that passively aligns a fiber array connector (FAC) to a waveguide in a photonic chip. A substrate of the FAC is machined or etched to include multiple grooves along a common axis or plane to hold optical waveguides, or more specifically, the fibers of the optical cables in the FAC. To align the fibers to the photonic chip, one of the fibers is disposed in an alignment trench which has a width that is substantially the same as the diameter of the fiber. When the fiber registers with the alignment trench, the fiber is aligned with a waveguide disposed at the end of the trench. Because the pitch between the fibers can be precisely controlled, aligning one of the fibers using the alignment trench results in the other fibers becoming passively aligned to respective waveguides in the photonic chip.

Passive fiber optic butt coupling using a semiconductor etched feature

An optical coupling may involve orienting a waveguide and a lens such that light rays are focused on a surface. The lens may involve the use of a material having a variable refractive index to focus rays of light along first axis and a curved surface to focus the rays of light along a second axis.

Multi-axis graded-index photonic coupling

A high-temperature pressure sensor is provided. The sensor includes a quartz substrate with a cavity etched on one side. A reflective coating is deposited on at least a portion of the cavity. The sensor further includes a ferrule section coupled to the quartz substrate with the cavity therebetween. The cavity exists in a vacuum, and cavity gap is formed between the reflective metal coating and a surface of the ferrule. The sensor also includes an optical fiber enclosed by the ferrule section and extending from the cavity gap to an opposing end of the ferrule section and a metal casing surrounding the ferrule section and the quartz substrate with an opening for said optical fiber extending therefrom. The pressure applied to the quartz substrate changes the dimensions of the cavity gap and a reflected signal from the reflective coating is processed as a pressure.

Growing community of inventors

Berkeley Heights, NJ, United States of America

Weizhuo Li