公开(公告)号：US20210091530A1

公开(公告)日：2021-03-25

申请号：US16990544

申请日：2020-08-11

Applicant: Fujitsu Optical Components Limited

Inventor： Kazumasa Takabayashi ,  Suguru Akiyama

IPC: H01S5/00 ,  H01S5/042 ,  H01S5/10

Abstract: An optical amplifier includes an optical amplifier chip that includes a pair of semiconductor optical amplifiers (SOAs), a U-shaped waveguide connecting the pair of SOAS, and two electrodes that respectively correspond to the pair of SOAS and are separated from each other, and a base substrate that includes a common metal wiring connecting the two electrodes, and on which the optical amplifier chip is mounted.

公开(公告)号：US11984696B2

公开(公告)日：2024-05-14

申请号：US16990544

申请日：2020-08-11

Applicant: Fujitsu Optical Components Limited

Inventor： Kazumasa Takabayashi ,  Suguru Akiyama

IPC: H01S5/00 ,  H01S5/042 ,  H01S5/10

CPC classification number: H01S5/0014 ,  H01S5/04256 ,  H01S5/101

Abstract: An optical amplifier includes an optical amplifier chip that includes a pair of semiconductor optical amplifiers (SOAs), a U-shaped waveguide connecting the pair of SOAS, and two electrodes that respectively correspond to the pair of SOAS and are separated from each other, and a base substrate that includes a common metal wiring connecting the two electrodes, and on which the optical amplifier chip is mounted.

公开(公告)号：US20230035193A1

公开(公告)日：2023-02-02

申请号：US17845365

申请日：2022-06-21

Applicant: Fujitsu Optical Components Limited

Inventor： Yukie Iga ,  Hirotomo Izumi ,  Kazumasa Takabayashi ,  Suguru Akiyama

IPC: G02F1/21 ,  G02F1/225 ,  H01S5/00

Abstract: A wavelength filter includes a first filter circuit and a second filter circuit. The first filter circuit that has a passband that is obtained from a vernier effect by connecting, in series, a plurality of ring resonators each having a different transmission wavelength interval and that is within a gain band of an optical amplifier, and that passes, from the gain band, light at a selected wavelength and light that has a wavelength in a recursive mode and that is produced on a short wavelength side or a long wavelength side of the selected wavelength. The second filter circuit is connected to the first filter circuit in series and suppresses the light at the wavelength in the recursive mode from the light passing through the first filter circuit.

公开(公告)号：US20190280776A1

公开(公告)日：2019-09-12

申请号：US16276215

申请日：2019-02-14

Applicant: Fujitsu Optical Components Limited

Inventor： Shuntaro Makino ,  KOHEI SHIBATA ,  Suguru Akiyama

IPC: H04B10/40 ,  H04B10/516 ,  G02F1/225 ,  G02F1/01

Abstract: An optical transceiver device includes: an optical circuit that includes an optical modulator to generate a modulated optical signal and an optical reception circuit to convert a received optical signal into an electric signal and implemented in a rectangular optical circuit area; a driver circuit that drives the optical modulator and arranged along a first side of the optical circuit area; an amplifier circuit that converts an output signal of the optical reception circuit into a voltage signal and arranged along a second side of the optical circuit area, the second side being orthogonal to the first side; a first electrical component that is electrically coupled to the driver circuit and arranged in an area adjacent to the driver circuit; and a second electrical component that is electrically coupled to the amplifier circuit and arranged in an area adjacent to the amplifier circuit.