International Business Machines Corporation

Jean Benoit Heroux

Toshiyuki Yamane

Seiji Takeda

Masao Tokunari

Hsiang Han Hsu

Daiju Nakano

A chip packaging structure that includes an optoelectronic (OE) chip mounted on a first surface of a substrate and whose optically active area is directed laterally; and a lens array for the optoelectronic (OE) chip that is mounted on the first surface of the substrate and faces to the optoelectronic (OE) chip, wherein the lens array has inside a reflector reflecting light from a first direction to a second direction, in which the first direction is substantially perpendicular to the second direction.

Lateral mounting of optoelectronic chips on organic substrate

Provided is a reservoir computing system that is miniaturized and has a reduced learning cost. The reservoir computing system uses a reservoir that includes a first optical output section that outputs a first optical signal; a first optical waveguide that propagates the first optical signal output by the first optical output section; an optical receiving section that receives the first optical signal from the first optical waveguide; a storage section that stores received optical data corresponding to the first optical signal and output by the optical receiving section; and a feedback section that applies, to the first optical signal, feedback corresponding to the received optical data stored in the storage section.

Reservoir and reservoir computing system

A photonic neural component includes optical transmitters, optical receivers, inter-node waveguides formed on a board, transmitting waveguides configured to receive optical signals emitted from the optical transmitters and transmit the received optical signals to the inter-node waveguides, mirrors to partially reflect optical signals propagating on the inter-node waveguides, receiving waveguides configured to receive reflected optical signals produced by the mirrors and transmit the reflected optical signals to the optical receivers, and filters configured to apply weights to the reflected optical signals. The transmitting waveguides and receiving waveguides are formed on the board such that one of the transmitting waveguides and one of the receiving waveguides crosses one of the inter-node waveguides with a core of one of the crossing waveguides passing through a core or clad of the other.

Waveguide architecture for photonic neural component

A photonic neural component including optical transmitters, optical receivers, inter-node waveguides formed on a board, multiplexers configured to multiplex input optical signals onto the inter-node waveguides, transmitting waveguides configured to receive optical signals emitted from the optical transmitters and transmit the received optical signals to the inter-node waveguides via the multiplexers, mirrors to partially reflect optical signals propagating on the inter-node waveguides, receiving waveguides configured to receive reflected optical signals produced by the mirrors and transmit the reflected optical signals to the optical receivers, and filters configured to apply weights to the reflected optical signals. The transmitting waveguides and receiving waveguides are formed on the board such that one of the transmitting waveguides and one of the receiving waveguides crosses one of the inter-node waveguides with a core of one of the crossing waveguides passing through a core or clad of the other.

Waveguide architecture for photonic neural component with multiplexed optical signals on inter-node waveguides

A waveguide corner structure includes a plate on which mirrors are formed; and a waveguide member including waveguide cores and holes, each of the holes being drilled in a portion replacing an angular bent portion of corresponding waveguide cores. The plate is mounted on the waveguide member so that each of the mirrors is inserted in corresponding one of the holes for a change of a direction of a light beam at the portion of corresponding waveguide cores.

Growing community of inventors

Kawasaki, Japan

Jean Benoit Heroux