公开(公告)号：US20230018578A1

公开(公告)日：2023-01-19

申请号：US17405101

申请日：2021-08-18

Applicant: Mellanox Technologies, Ltd.

Inventor： Paraskevas Bakopoulos ,  Nikolaos (Nikos) Argyris ,  Boaz Atias ,  Elad Mentovich

IPC: G02F1/21 ,  G02F1/225

Abstract: Embodiments are disclosed for generating an optical Pulse Amplitude Modulation 4-level (PAM-4) signal from bandwidth-limited duobinary electrical signals in a Mach-Zehnder modulator. An example system includes an MZM structure that comprises a first waveguide interferometer arm structure associated with a first semiconductor device and a second waveguide interferometer arm structure associated with a second semiconductor device. A polybinary electrical signal is applied to or between the first semiconductor device and the second semiconductor device to convert an input optical signal provided to the MZM structure into an optical PAM-4 signal.

公开(公告)号：US20220390673A1

公开(公告)日：2022-12-08

申请号：US17362405

申请日：2021-06-29

Applicant: Mellanox Technologies, Ltd.

Inventor： Dimitrios Kalavrouziotis ,  Yaakov Gridish ,  Paraskevas Bakopoulos ,  Anders Gösta Larsson ,  Elad Mentovich

IPC: G02B6/14 ,  H01S3/067 ,  G02B6/122 ,  G02B6/26

Abstract: Embodiments are disclosed for a coupling element with embedded modal filtering for a laser and/or a photodiode. An example system includes a laser and an optical coupling element. The laser is configured to emit an optical signal. The optical coupling element is configured to receive the optical signal emitted by the laser. The optical coupling element is also configured to be connected to an optical fiber such that, in operation, the optical signal is transmitted from the laser to the optical fiber via the optical coupling element. Furthermore, the coupling element comprises a tapered section that provides modal filtering of the optical signal.

公开(公告)号：US20220377441A1

公开(公告)日：2022-11-24

申请号：US17332148

申请日：2021-05-27

Applicant: Mellanox Technologies LTD.

Inventor： Ioannis (Giannis) Patronas ,  Paraskevas Bakopoulos ,  Elad Mentovich ,  Barak Gafni ,  Adam V. Richards

IPC: H04Q11/00 ,  H04L12/715

Abstract: A device for a network switch comprises N input ports, and an electrical block including a plurality of electrical switches configured to route signals in an electrical domain. Each electrical switch includes M input ports, and the device further comprises an optical block coupled to the electrical block. The optical block is configured to route signals in an optical domain. A configuration of the optical block and a configuration of the electrical block are based on at least a number of the N input ports.

公开(公告)号：US20220246781A1

公开(公告)日：2022-08-04

申请号：US17249140

申请日：2021-02-22

Applicant: Mellanox Technologies, Ltd.

Inventor： Yuri Berk ,  Vladimir Iakovlev ,  Tamir Sharkaz ,  Elad Mentovich ,  Matan Galanty ,  Itshak Kalifa ,  Paraskevas Bakopoulos

IPC: H01L31/105 ,  H01L31/0304

Abstract: Various embodiments of improved PIN-type photodiodes are provided. In an example embodiment, the PIN-type photodiode includes a p-type contact; an n-type contact; a first absorbing layer disposed between the p-type contact and the n-type contact; and a second absorbing layer disposed between the first absorbing layer and the n-type contact. The first absorbing layer is characterized by a first absorption coefficient and the second absorbing layer is characterized by a second absorption coefficient. The second absorption coefficient is greater than the first absorption coefficient. In another example embodiment, the PIN-type photodiode includes a p-type contact; an n-type contact; a first absorbing layer disposed between the p-type contact and the n-type contact; and a non-absorbing accelerating layer disposed between absorbing layers and non-absorbing drift layer and the n-type contact.

公开(公告)号：US20220210174A1

公开(公告)日：2022-06-30

申请号：US17145343

申请日：2021-01-10

Applicant: Mellanox Technologies, Ltd.

Inventor： Dimitrios Syrivelis ,  Dimitrios Kalavrouziotis ,  Paraskevas Bakopoulos ,  Elad Mentovich

IPC: H04L29/06 ,  G06N3/04 ,  G06N5/04

Abstract: An apparatus includes multiple ports, packet communication processing circuitry coupled to the ports, and a processor that is configured to receive, from the packet communication processing circuitry, metadata that is indicative of a temporal pattern of control messages communicated via one or more of the ports, and to identify a network attack by applying anomaly detection to the temporal pattern of the control messages.

公开(公告)号：US20220190929A1

公开(公告)日：2022-06-16

申请号：US17438143

申请日：2019-05-08

Applicant: Mellanox Technologies, Ltd.

Inventor： Don Becker ,  Dmitrios Kalavrouziotis ,  Paraskevas Bakopoulos ,  Vladimr Iakolev ,  Elad Mentovich

IPC: H04B10/61 ,  H04B10/2569 ,  H04B10/67

Abstract: A passive dual polarization unit and coherent transceiver and/or receiver including one or more passive dual polarization units are provided. An example passive dual polarization unit includes a polarization splitter configured to split an input signal into a TE mode and TM mode signals; TE/TM splitters each designed to split the TE/TM mode signals into first TE/TM signals and second TE/TM signals; a first TE signal polarization rotation component for receiving the first TE signal and providing a third TM signal having the same magnitude and time dependence as the first TE signal; a first TM signal polarization rotation component for receiving the first TM signal and providing a third TE signal having the same magnitude and time dependence as the first TM signal; and TE/TM couplers that couple the second TE/TM signals and the third TE/TM signals to generate output TE/TM signals.

公开(公告)号：US20210311273A1

公开(公告)日：2021-10-07

申请号：US17315312

申请日：2021-05-09

Applicant: MELLANOX TECHNOLOGIES, LTD.

Inventor： Dimitrios Kalavrouziotis ,  Donald Becker ,  Boaz Atias ,  Paraskevas Bakopoulos ,  Elad Mentovich

IPC: G02B6/43 ,  H04B10/25 ,  G02B6/42 ,  G02B6/44

Abstract: A network device includes an enclosure, a multi-chip module (MCM), an optical-to-optical connector, and a multi-core fiber (MCF) interconnect. The enclosure has a panel. The MCM is inside the enclosure. The optical-to-optical connector, which is mounted on the panel of the enclosure, is configured to transfer a plurality of optical communication signals. The MCF interconnect includes multiple fiber cores for routing the plurality of optical communication signals between the MCF and the panel. The MCF has a first end at which the multiple fiber cores are coupled to the MCM, and a second end at which the multiple fiber cores are connected to the optical-to-optical connector on the panel.

公开(公告)号：US20210297151A1

公开(公告)日：2021-09-23

申请号：US16921993

申请日：2020-07-07

Applicant: Mellanox Technologies, Ltd.

Inventor： Dotan David Levi ,  Avi Urman ,  Lior Narkis ,  Liron Mula ,  Paraskevas Bakopoulos ,  Ariel Almog ,  Roee Moyal ,  Gal Yefet

IPC: H04B7/26 ,  H04W72/04 ,  H04W74/08 ,  H04L12/931 ,  H04L12/861

Abstract: A network element one or more network ports, network time circuitry and packet processing circuitry. The network ports are configured to communicate with a communication network. The network time circuitry is configured to track a network time defined in the communication network. In some embodiments the packet processing circuitry is configured to receive a definition of one or more timeslots that are synchronized to the network time, and to send outbound packets to the communication network depending on the timeslots. In some embodiments the packet processing circuitry is configured to process inbound. packets, which are received from the communication network, depending on the timeslots.

公开(公告)号：US10996401B2

公开(公告)日：2021-05-04

申请号：US16313503

申请日：2016-06-30

Applicant: Mellanox Technologies, Ltd.

Inventor： Elad Mentovich ,  Itshak Kalifa ,  Sylvie Rockman ,  Anna Sandomirsky ,  Giannis Poulopoulos ,  Dimitrios Kalavrouziotis ,  Paraskevas Bakopoulos ,  Hercules Avramopoulos ,  Xin Yin ,  Geert Van Steenberge

IPC: G02B6/12 ,  G02B6/30 ,  G02B6/122 ,  G02B6/42 ,  H01S5/183

Abstract: An optical coupler and method of assembly are described that provide efficient coupling from the photonic integrated circuit (PIC) waveguide layer to external components, such as optical fibers, VCSELs, photodetectors, and gain blocks, among others. The optical coupler includes a PIC that can be supported by a printed circuit board, an optoelectronic transducer supported by the PIC that can convert between optical signals and corresponding electrical signals, and a coupled waveguide assembly. The coupled waveguide assembly includes a low-index waveguide, a high-index waveguide, and a reflective surface that changes a pathway of the optical signals to direct the optical signals from the optoelectronic transducer into the low-index waveguide or from the low-index waveguide into the optoelectronic transducer.

公开(公告)号：US12045178B2

公开(公告)日：2024-07-23

申请号：US17673105

申请日：2022-02-16

Applicant: MELLANOX TECHNOLOGIES, LTD.

Inventor： Dimitrios Syrivelis ,  Paraskevas Bakopoulos ,  Ioannis (Giannis) Patronas ,  Elad Mentovich ,  James Stephen Fields, Jr. ,  Haggai Eran ,  Liran Liss

IPC: G06F13/16

CPC classification number: G06F13/1642

Abstract: A system comprises a first processing block configured to receive, from a first local resource, a formatted transaction in a format that is not recognizable by a remote endpoint; determine a first transaction category, from among a plurality of transaction categories, of the formatted transaction based on content of the formatted transaction; perform one or operations on the formatted transaction based on the first transaction category to form a reformatted transaction in a format that is recognizable by the remote endpoint; and place the reformatted transaction in a queue for transmission to the remote endpoint.