公开(公告)号：US20210296850A1

公开(公告)日：2021-09-23

申请号：US16903159

申请日：2020-06-16

Applicant: LuxNet Corporation

Inventor： FANG-JENG LIN ,  YU-CHUN FAN ,  PI-CHENG LAW ,  YI-CHING CHIU

IPC: H01S5/026 ,  H01S5/028 ,  H01S5/20 ,  H01S5/06

Abstract: A method for increasing the bandwidth of an electroabsorption modulator (EAM) includes the following steps. First, a plurality of p-i-n active waveguides for the EAM are defined on a p-i-n optical waveguide forming an EAM having a shorter p-i-n active waveguide length. Then, the bandwidth of the EAM can be increased. Second, the high-impedance transmission lines are used in series to connect the EAM sections to reduce the microwave reflection and then increase the device bandwidth. Finally, the impedance-controlled transmission lines for the signal input and output can not only reduce the parasitic effects resulting from packaging, but also reduce the microwave reflection resulting from the impedance mismatch at the device input and load.

公开(公告)号：US10892598B2

公开(公告)日：2021-01-12

申请号：US16679014

申请日：2019-11-08

Applicant: INPHI CORPORATION ,  Luxnet Corporation

Inventor： Radhakrishnan L. Nagarajan ,  Peng-Chih Li ,  Pi-Cheng Law

IPC: H01S5/06 ,  H04B10/50 ,  H01S5/024 ,  H01S5/00 ,  H01S5/022 ,  G02B6/42 ,  H01S5/068 ,  H01S5/125

Abstract: A packaged transmitter device includes a base member comprising a planar part mounted with a thermoelectric cooler, a transmitter, and a coupling lens assembly, and an assembling part connected to one side of the planar part. The device further includes a circuit board bended to have a first end region and a second end region being raised to a higher level. The first end region disposed on a top surface of the planar part includes multiple electrical connection patches respectively connected to the thermoelectric and the transmitter. The second end region includes an electrical port for external connection. Additionally, the device includes a cover member disposed over the planar part. Furthermore, the device includes a cylindrical member installed to the assembling part for enclosing an isolator aligned to the coupling lens assembly along its axis and connected to a fiber to couple optical signal from the transmitter to the fiber.

公开(公告)号：US10559941B2

公开(公告)日：2020-02-11

申请号：US16160817

申请日：2018-10-15

Applicant: INPHI CORPORATION ,  LUXNET CORPORATION

Inventor： Radhakrishnan L. Nagarajan ,  Peng-Chih Li ,  Pi-Cheng Law

IPC: H01S5/06 ,  G02B6/42 ,  H01S5/00 ,  H01S5/022 ,  H01S5/125 ,  H04B10/50 ,  H01S5/024 ,  H01S5/068

Abstract: A packaged transmitter device includes a base member comprising a planar part mounted with a thermoelectric cooler, a transmitter, and a coupling lens assembly, and an assembling part connected to one side of the planar part. The device further includes a circuit board bended to have a first end region and a second end region being raised to a higher level. The first end region disposed on a top surface of the planar part includes multiple electrical connection patches respectively connected to the thermoelectric and the transmitter. The second end region includes an electrical port for external connection. Additionally, the device includes a cover member disposed over the planar part. Furthermore, the device includes a cylindrical member installed to the assembling part for enclosing an isolator aligned to the coupling lens assembly along its axis and connected to a fiber to couple optical signal from the transmitter to the fiber.

公开(公告)号：US09887516B2

公开(公告)日：2018-02-06

申请号：US15372524

申请日：2016-12-08

Applicant: INPHI CORPORATION ,  Luxnet Corporation

Inventor： Radhakrishnan L. Nagarajan ,  Peng-Chih Li ,  Pi-Cheng Law

IPC: H04B10/50 ,  G02B6/42 ,  H01S5/00 ,  H01S5/022 ,  H01S5/024 ,  H01S5/068 ,  H01S5/06 ,  H01S5/125

CPC classification number: H01S5/0612 ,  G02B6/4204 ,  G02B6/4212 ,  G02B6/4215 ,  G02B6/4271 ,  G02B6/4287 ,  G02B6/4296 ,  H01S5/0064 ,  H01S5/0224 ,  H01S5/02248 ,  H01S5/02284 ,  H01S5/02288 ,  H01S5/02415 ,  H01S5/02438 ,  H01S5/068 ,  H01S5/125 ,  H04B10/501

Abstract: A packaged transmitter device includes a base member comprising a planar part mounted with a thermoelectric cooler, a transmitter, and a coupling lens assembly, and an assembling part connected to one side of the planar part. The device further includes a circuit board bended to have a first end region and a second end region being raised to a higher level. The first end region disposed on a top surface of the planar part includes multiple electrical connection patches respectively connected to the thermoelectric and the transmitter. The second end region includes an electrical port for external connection. Additionally, the device includes a cover member disposed over the planar part. Furthermore, the device includes a cylindrical member installed to the assembling part for enclosing an isolator aligned to the coupling lens assembly along its axis and connected to a fiber to couple optical signal from the transmitter to the fiber.