公开(公告)号：US12032210B2

公开(公告)日：2024-07-09

申请号：US17881507

申请日：2022-08-04

Applicant: Luminous Computing, Inc.

Inventor： Mitchell A. Nahmias

IPC: G02B6/293 ,  G02B6/42 ,  G06E3/00 ,  H04B10/70 ,  H04J14/02

CPC classification number: G02B6/29355 ,  G02B6/4215 ,  G06E3/008 ,  H04B10/70 ,  H04J14/02

Abstract: A system for photonic computing, preferably including an input module, computation module, and/or control module, wherein the computation module preferably includes one or more filter banks and/or detectors. A photonic filter bank system, preferably including two waveguides and a plurality of optical filters optically coupled to one or more of the waveguides. A method for photonic computing, preferably including controlling a computation module, controlling an input module, and/or receiving outputs from the computation module.

公开(公告)号：US20240078046A1

公开(公告)日：2024-03-07

申请号：US18462096

申请日：2023-09-06

Applicant: Luminous Computing, Inc.

Inventor： Dave Baker ,  Anahita Shayesteh ,  Mitchell A. Nahmias ,  Vishal Kasliwal

IPC: G06F3/06

CPC classification number: G06F3/0659 ,  G06F3/0611 ,  G06F3/0683

Abstract: A computer system comprises one or more processing units and a plurality of memory locations interconnected by a plurality of data links, each processing unit comprising a data request engine and a processor. A method for accessing data in memory of the computer system, includes: receiving a data access job at a first data request engine specifying data to be accessed; and generating a plurality of memory access requests to request the plurality of data partitions needed to fulfill the data access job. The plurality of memory access requests are then delivered to the plurality of memory locations, and the plurality of data partitions are copied or moved from the plurality of memory locations to the first processing unit via the data links. The data access job specifies a plurality of data partitions of a source data structure distributed over the plurality of memory locations of the computer system. One purpose of this computer system is to accelerate the accessing of the rows or vectors in an embedding table for machine learning.

公开(公告)号：US20240078016A1

公开(公告)日：2024-03-07

申请号：US18149013

申请日：2022-12-30

Applicant: Luminous Computing, Inc.

Inventor： David Cureton BAKER ,  Ari NOVACK ,  Donovan POPPS ,  Benjamin Wiley MELTON ,  Bryan COPE ,  Mark BAUR ,  Anahita SHAYESTEH

IPC: G06F3/06

CPC classification number: G06F3/0613 ,  G06F3/0629 ,  G06F3/0659 ,  G06F3/0673

Abstract: Conventional high performance computer connections are electron-based systems, which require the memory packages to be as close as mechanically possible to the computation engine. Low power and high bandwidth communication, e.g. photonic, links can drastically change the architecture of high-performance computers by eliminating the bottlenecks in communication. A computer system comprises: a plurality of memory aggregation devices configured to retrieve data from and store data in a plurality of random access memory modules forming a unified contiguous memory address space disaggregated from a central processing unit; a plurality of computational devices configured for simultaneously launching a plurality of data signals including memory read and/or write requests for the data to the plurality of memory aggregation devices; and a plurality of communication links coupling each of the plurality of memory aggregation devices to each of the plurality of computational devices for transferring the data therebetween.

公开(公告)号：US20240077781A1

公开(公告)日：2024-03-07

申请号：US18461105

申请日：2023-09-05

Applicant: Luminous Computing, Inc.

Inventor： Mitchell A NAHMIAS ,  Michael J. HOCHBERG ,  Thomas W. BAEHR-JONES ,  Ari NOVACK ,  David Cureton BAKER ,  Matthew CHANG ,  Lei WANG ,  Matthew STRESHINSKY ,  Wuchun WU ,  Hamidreza NAHAVANDI ,  Brian West

IPC: G02F1/225 ,  G02F1/21

CPC classification number: G02F1/2252 ,  G02F1/212

Abstract: Conventional high performance computer connections are electron-based systems, which require the memory packages to be as close as mechanically possible to the computation engine. Low power and high bandwidth communication, e.g. photonic, links can drastically change the architecture of high-performance computers by eliminating the bottlenecks in communication and augment existing memory systems to allow them to be both high capacity and high bandwidth simultaneously. A computer system comprises: a plurality of memory aggregation devices configured to retrieve data from and store data in a plurality of random access memory modules forming a unified contiguous memory address space disaggregated from a processing unit; a plurality of computational devices configured for simultaneously launching a plurality of data signals including memory read and/or write requests for the data to the plurality of memory aggregation devices; and a plurality of communication links coupling each of the plurality of memory aggregation devices to each of the plurality of computational devices for transferring the data therebetween.

公开(公告)号：US20230121555A1

公开(公告)日：2023-04-20

申请号：US18047500

申请日：2022-10-18

Applicant: Luminous Computing, Inc.

Inventor： Thomas W. BAEHR-JONES ,  Hari SHANKAR ,  Florian BOHN

IPC: H04B10/63 ,  H04B10/50

Abstract: Mixing between I and Q components in coherent homodyne optical signals can occur due to phase shifts, e.g. relative to the local oscillator, relative to the other signal components. In some examples, the phase shifts can arise due to thermal expansion of the optical waveguides and/or can include polarization mixing. A descrambler functions to correct for mixing between multiple signal components. The descrambler may be configured to at least partially correct for a phase difference between a first plurality of modulated optical data signals and a first local oscillator reference signal; and a controller may be configured for determining a first correction parameter for at least partially correcting for the phase difference, and for transmitting the first correction parameter to the descrambler. The controller may be configured for determining the first correction parameter from a first pilot signal transmitted with the first plurality of modulated optical data signals.

公开(公告)号：US20220269002A1

公开(公告)日：2022-08-25

申请号：US17671049

申请日：2022-02-14

Applicant: Luminous Computing, Inc.

Inventor： Lei Wang ,  Thomas W. Baehr-Jones ,  Mitchell A. Nahmias

IPC: G02B6/12 ,  G02B6/136 ,  G02B6/132

Abstract: A photonic integrated circuit (PIC) system, preferably including a substrate, one or more photonic connections, and a plurality of circuit blocks. The circuit blocks preferably include one or more waveguides that are optically coupled to the photonic connections, such as by transition features. A method of PIC fabrication, preferably including defining a PIC structure and defining circuit blocks. The circuit blocks are preferably defined onto one or more template regions defined by the PIC structure. Photonic connections are preferably defined as part of the PIC structure. Transition features, such as transitions between the photonic connections and the circuit blocks, are preferably defined concurrently with defining the circuit blocks.

公开(公告)号：US10908634B1

公开(公告)日：2021-02-02

申请号：US16923557

申请日：2020-07-08

Applicant: Luminous Computing, Inc.

Inventor： Matthew Chang ,  Mitchell A. Nahmias

IPC: G06E1/00 ,  G06E1/04 ,  H03F3/45 ,  G02B6/42 ,  G02B6/293

Abstract: A system for parallel photonic computation, preferably including one or more source modules, a plurality of multiplication modules, and a plurality of summation modules. In one embodiment, each multiplication module can include a set of input modulators, a splitter, and a plurality of multiplication banks. Each summation module can include one or more detectors. Each summation module preferably receives an output from multiple multiplication modules and computes the sum of all channels of all the received outputs. A method for parallel photonic computation, preferably including generating input signals, computing products, and computing sums.

公开(公告)号：US20200300695A1

公开(公告)日：2020-09-24

申请号：US16826008

申请日：2020-03-20

Applicant: Luminous Computing, Inc.

Inventor： Mitchell A. Nahmias ,  Michael Gao

IPC: G01J1/44 ,  H03M1/12 ,  G01J1/04

Abstract: A system for analog-to-digital conversion, preferably including one or more optical inputs, optical sources, phase remodulators, and/or photonic circuits, and optionally including detector banks and/or digital electronics. A method for analog-to-digital conversion, preferably including receiving an optical input signal, generating a phase-modulated optical signal, and/or generating a plurality of optical outputs, and optionally including generating a plurality of electrical outputs and/or encoding a digital representation of the outputs.

公开(公告)号：US12085790B2

公开(公告)日：2024-09-10

申请号：US18134871

申请日：2023-04-14

Applicant: Luminous Computing, Inc.

Inventor： Mitchell A. Nahmias ,  Michael Gao

IPC: G02F1/21 ,  G02F1/025 ,  G02F1/03 ,  G02F1/035

CPC classification number: G02F1/0327 ,  G02F1/025 ,  G02F1/035 ,  G02F2202/32 ,  G02F2203/50

Abstract: A photonic computing system, preferably including an input module, a computation module, and/or control module. The photonic computing system can include one or more optical filter banks, such as in the computation module and/or any other suitable modules. Each optical filter bank preferably includes a plurality of photonic bandgap phase modulators. Each photonic bandgap phase modulator preferably includes a set of photonic crystal segments. The photonic crystal segments can preferably be controlled to transition light propagation between two or more photonic bands.

公开(公告)号：US12045080B1

公开(公告)日：2024-07-23

申请号：US17170794

申请日：2021-02-08

Applicant: Luminous Computing, Inc.

Inventor： Thomas W. Baehr-Jones ,  Mitchell A. Nahmias

IPC: G06E3/00

CPC classification number: G06E3/005 ,  G06E3/006 ,  G06E3/008

Abstract: An optical computation system, preferably including an optical source, a splitter, and one or more phase accumulator banks. A phase accumulator bank, preferably including two optical paths, a plurality of phase accumulator units, and a detector module, and optionally including one or more compensation phase shifters. A method, preferably including receiving one or more optical inputs, receiving one or more electrical inputs, controlling one or more phase accumulator units based on the electrical inputs, and generating one or more electrical outputs based on optical signals.