公开(公告)号：US20250035965A1

公开(公告)日：2025-01-30

申请号：US18911975

申请日：2024-10-10

Applicant: MELLANOX TECHNOLOGIES, LTD.

Inventor： Oren STEINBERG ,  Anders Gösta LARSSON ,  Attila FÜLÖP ,  Elad MENTOVICH ,  Isabelle CESTIER ,  Moshe B. ORON

IPC: G02F1/017 ,  G02F1/015 ,  H01L31/0232 ,  H01L31/0304 ,  H01L31/109

Abstract: Processes and devices for continuous compositional grading in photodetectors and electro-absorption modulators (EAM) are provided. An example photodetector includes a multi-layered structure comprising a collector region, an absorber region, a grading layer, and a peripheral layer, all aligned along a detection axis. The grading layer, positioned adjacent to the absorber region, includes multiple sub-layers that define a continuous compositional grading to facilitate smooth carrier transport and reduce recombination. Similarly, an example electro-absorption modulator (EAM) device includes a waveguide mesa formed on a semiconductor substrate, comprising a multi-quantum well (MQW) core layer, upper and lower near-core cladding layers, and upper and lower central cladding layers. The EAM device features both upper and lower grading layers, each positioned between the near-core cladding layers and the adjacent central cladding layers. These grading layers include multiple sub-layers that define a continuous compositional grading, facilitating smooth transitions between the MQW core and surrounding cladding layers.

公开(公告)号：US20240310662A1

公开(公告)日：2024-09-19

申请号：US18120802

申请日：2023-03-13

Applicant: Mellanox Technologies, Ltd.

Inventor： Moshe B. ORON ,  Oren STEINBERG ,  Isabelle CESTIER ,  Elad MENTOVICH ,  Timothy DE KEULENAER

IPC: G02F1/035 ,  G02F1/03

CPC classification number: G02F1/035 ,  G02F1/0311 ,  G02F1/0316

Abstract: Systems and methods are described herein for an electro-absorption modulator (EAM) device. An example EAM device comprises an optical waveguide comprising a waveguide core configured to facilitate a propagation of an optical signal therethrough; a segmented traveling wave electrode structure comprising electrode segments disposed on the optical waveguide; and an electrical transmission line operatively coupled to the electrode segments via conducting bridges, wherein the electrical transmission line is configured to facilitate a propagation of an electrical signal therethrough, wherein the electrode segments are configured to overcome bandwidth and extinction ratio constraints of a lumped EAM.

公开(公告)号：US20250076690A1

公开(公告)日：2025-03-06

申请号：US18242652

申请日：2023-09-06

Applicant: Mellanox Technologies, Ltd.

Inventor： Oren STEINBERG ,  Moshe B. ORON ,  Isabelle CESTIER ,  Elad MENTOVICH ,  Timothy De KEULENAER ,  Jochem VERBIST

IPC: G02F1/015 ,  G02F1/025 ,  G02F1/35

Abstract: Systems and methods are described herein for an electro-absorption modulator (EAM) device. An example EAM device comprises an optical waveguide comprising a waveguide core configured to facilitate propagation and modulation of an optical signal therethrough; a segmented structure comprising diode segments disposed on the waveguide; and an electrical transmission line operatively coupled to the diode segments. The electrical transmission line is configured to facilitate propagation of an electrical signal therethrough. The electrical transmission line includes a first transmission line rail and a second transmission line, where a first subset of diode segments is operatively coupled to the first transmission line rail and a ground rail, and a second subset of diode segments is operatively coupled to the second transmission line and the ground rail. The diode segments from the first subset are disposed alternately with the diode segments from the second subset.

公开(公告)号：US20240310660A1

公开(公告)日：2024-09-19

申请号：US18120719

申请日：2023-03-13

Applicant: Mellanox Technologies, Ltd.

Inventor： Oren STEINBERG ,  Moshe B. ORON ,  Isabelle CESTIER ,  Elad MENTOVICH ,  Timothy DE KEULENAER ,  Jochem VERBIST

IPC: G02F1/015 ,  G02F1/017

CPC classification number: G02F1/0157 ,  G02F1/01708 ,  G02F2202/102 ,  G02F2202/108

Abstract: Systems and methods are described herein for an electro-absorption modulator (EAM) device. An example EAM device comprises an optical waveguide comprising a waveguide core configured to facilitate propagation of an optical signal therethrough; a segmented structure comprising diode segments disposed on the waveguide; and a differential electrical transmission line operatively coupled to the diode segments. The electrical transmission line includes a first transmission rail and a second transmission rail, and the electrical transmission line is configured to facilitate propagation of an electrical signal therethrough. The EAM device is configured for operation by a differential radio frequency (RF) source that is configured to supply the electrical signal to the EAM device, and the EAM device is formed on a semi-insulating substrate.

公开(公告)号：US20240047603A1

公开(公告)日：2024-02-08

申请号：US17881927

申请日：2022-08-05

Applicant: Mellanox Technologies, Ltd.

Inventor： Oren STEINBERG ,  Anders Gösta LARSSON ,  Attila FÜLÖP ,  Elad MENTOVICH ,  Isabelle CESTIER ,  Moshe B. ORON

IPC: H01L31/18 ,  H01L31/109 ,  H01L31/0304

CPC classification number: H01L31/1848 ,  H01L31/109 ,  H01L31/03048

Abstract: Processes for continuous compositional grading for realization of low charge carrier barriers in electro-optical heterostructure semiconductor devices are provided. An example process includes forming, onto one or more semiconductor layers of an electro-optical semiconductor device, a first semiconductor layer associated with a first bandgap value and forming, onto the first semiconductor layer, a grading layer associated with a continuous compositional grading. The example method further includes forming, onto the grading layer, a second semiconductor layer associated with a second bandgap value. The second bandgap value is different than the first bandgap value.