公开(公告)号：US20190221995A1

公开(公告)日：2019-07-18

申请号：US16243799

申请日：2019-01-09

Applicant: Lumentum Operations LLC

Inventor： John M. Heaton ,  Konstantin Petrovich Petrov

IPC: H01S5/026 ,  H01S5/125 ,  H01S5/12 ,  H01S5/06

CPC classification number: H01S5/0268 ,  H01S5/0261 ,  H01S5/0264 ,  H01S5/0612 ,  H01S5/1209 ,  H01S5/124 ,  H01S5/125

Abstract: An on-chip wavelength locker may include an optical waveguide splitter to split an input optical signal received from a laser. The on-chip wavelength locker may include a plurality of integrated periodic optical elements, each to receive a respective portion of the input optical signal after splitting of the input optical signal by the optical waveguide splitter, and provide, based on the respective portion of the input optical signal, a respective periodic output optical signal of a plurality of periodic output optical signals. Each periodic output optical signal, of the plurality of periodic output optical signals, may be phase shifted with respect to other periodic output optical signals of the plurality of periodic output optical signals. The on-chip wavelength locker may include a plurality of integrated photodiodes to receive the plurality of periodic output optical signals in association with wavelength locking the laser.

公开(公告)号：US11808892B2

公开(公告)日：2023-11-07

申请号：US16827327

申请日：2020-03-23

Applicant: Lumentum Operations LLC

Inventor： Konstantin Petrovich Petrov ,  Mikhail Dolganov

IPC: H04B10/50 ,  G01S7/484 ,  H01S5/042 ,  H04B10/524

CPC classification number: G01S7/484 ,  H01S5/0428 ,  H04B10/50 ,  H04B10/524

Abstract: A driver circuit, for generating narrow electrical pulses of high repetition rate with high peak current and low after pulse ringing to drive an optical load, may include a source, a first circuit path, and a second circuit path. The first circuit path may be connected to the source and may include inductive elements and a switch. The switch being in a closed state may charge current in the inductive elements through the first circuit path. The second circuit path may connect to the optical load and may be connected to the source. The second circuit path may include the inductive elements and a capacitive element in series with the optical load. The switch transitioning from the closed state to an open state may discharge current from the inductive elements through the second circuit path to provide an electrical pulse to the optical load.

公开(公告)号：US11171466B2

公开(公告)日：2021-11-09

申请号：US16243799

申请日：2019-01-09

Applicant: Lumentum Operations LLC

Inventor： John M. Heaton ,  Konstantin Petrovich Petrov

IPC: H01S5/026 ,  H01S5/12 ,  H01S5/125 ,  H01S5/06 ,  H01S5/0687 ,  G02B6/12 ,  H04B10/079 ,  H01S5/02325

Abstract: An on-chip wavelength locker may include an optical waveguide splitter to split an input optical signal received from a laser. The on-chip wavelength locker may include a plurality of integrated periodic optical elements, each to receive a respective portion of the input optical signal after splitting of the input optical signal by the optical waveguide splitter, and provide, based on the respective portion of the input optical signal, a respective periodic output optical signal of a plurality of periodic output optical signals. Each periodic output optical signal, of the plurality of periodic output optical signals, may be phase shifted with respect to other periodic output optical signals of the plurality of periodic output optical signals. The on-chip wavelength locker may include a plurality of integrated photodiodes to receive the plurality of periodic output optical signals in association with wavelength locking the laser.

公开(公告)号：US11048042B2

公开(公告)日：2021-06-29

申请号：US16730527

申请日：2019-12-30

Applicant: Lumentum Operations LLC

Inventor： Shibnath Pathak ,  Konstantin Petrovich Petrov ,  Brian Daniel ,  Hossein Hodaei ,  Michael C. Larson ,  Amit Mizrahi

IPC: G02B6/125 ,  G02B6/122 ,  G02B6/12

Abstract: A photonic integrated circuit may include a substrate and an optical waveguide integrated with the substrate. The optical waveguide may include a bend section, wherein a bend shape of the bend section is defined by a curvature function to suppress waveguide mode conversion.