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    TUNABLE LASER SOURCE
    4.
    发明申请
    TUNABLE LASER SOURCE 有权
    可激光源

    公开(公告)号：US20160094017A1

    公开(公告)日：2016-03-31

    申请号：US14502190

    申请日：2014-09-30

    Applicant: Lumentum Operations LLC

    Inventor： Michael C. LARSON

    IPC: H01S5/50 ,  G02B26/00

    CPC classification number: H01S5/0078 ,  G02B6/29352 ,  G02B6/29355 ,  G02B6/29389 ,  G02B6/29395 ,  G02B26/001 ,  H01S3/1055 ,  H01S5/026 ,  H01S5/06256 ,  H01S5/0687 ,  H01S5/1209 ,  H01S5/125 ,  H01S5/50 ,  H01S5/5045 ,  H01S2301/02

    Abstract: A tunable transmission optical filter is optically coupled between a laser section and semiconductor optical amplifier (SOA) section of a tunable laser device. The optical filter may be tuned to provide a high transmission near the lasing peak while suppressing a significant portion of back-propagating amplified spontaneous emission (ASE) of the SOA section. Without the optical filter, the laser output spectrum may develop side lobes of higher intensity after the ASE is amplified and reflected in the forward direction by the laser gain and mirror sections. While lessening the side lobes, the optical filter simultaneously transmits the laser peak for amplification by the SOA section.

    Abstract translation: 可调谐传输滤光器光耦合在可调激光器件的激光器部分和半导体光放大器（SOA）部分之间。 可以调整滤光器以在激光峰附近提供高透射率，同时抑制SOA部分的反向传播放大的自发发射（ASE）的显着部分。 没有光学滤波器，在ASE被放大并通过激光增益和反射镜部分向前方向反射之后，激光输出光谱可能产生更高强度的旁瓣。 在减少旁瓣的同时，光学滤波器同时传输激光峰值以供SOA部分放大。

    GEOMETRY FOR A SEMICONDUCTOR OPTICAL AMPLIFIER
    5.
    发明申请
    GEOMETRY FOR A SEMICONDUCTOR OPTICAL AMPLIFIER 有权

    公开(公告)号：US20230135027A1

    公开(公告)日：2023-05-04

    申请号：US17646334

    申请日：2021-12-29

    Applicant: Lumentum Operations LLC

    Inventor： Yiyin ZHOU ,  Amit MIZRAHI ,  Michael C. LARSON

    IPC: H01S5/50 ,  H01S5/10

    Abstract: In some implementations, a device may generate a data set including at least modal gain values and modal loss values for a semiconductor optical amplifier (SOA) slice. The device may determine, based on the data set, respective widths for a plurality of slices of an SOA using an autoregressive model. A width, of the respective widths, for a slice, of the plurality of slices, may be associated with a maximum conversion efficiency achievable for the slice at a given current density. The device may generate information indicating a geometry for the SOA based on the respective widths for the plurality of slices.

    THERMALLY-CONTROLLED PHOTONIC STRUCTURE
    6.
    发明申请
    THERMALLY-CONTROLLED PHOTONIC STRUCTURE 有权

    公开(公告)号：US20230073927A1

    公开(公告)日：2023-03-09

    申请号：US18054989

    申请日：2022-11-14

    Applicant: Lumentum Operations LLC

    Inventor： Shibnath PATHAK ,  Duanhua KONG ,  Michael C. LARSON ,  Amit MIZRAHI

    IPC: H01S5/024 ,  H01S5/068 ,  H01S5/22 ,  H01S5/06

    Abstract: In some implementations, a thermally-controlled photonic structure may include a suspended region that is suspended over a substrate; a plurality of bridge elements connected to the suspended region and configured to suspend the suspended region over the substrate, where a plurality of openings are defined between the plurality of bridge elements; and at least one heater element having a modulated width disposed on the suspended region. The at least one heater element having the modulated width may include at least one section of a greater width and at least one section of a lesser width. The at least one section of the greater width may be in alignment with an opening of the plurality of openings and the at least one section of the lesser width may be in alignment with a bridge element of the plurality of bridge elements.

    THERMALLY-CONTROLLED PHOTONIC STRUCTURE
    8.
    发明申请
    THERMALLY-CONTROLLED PHOTONIC STRUCTURE 有权

    公开(公告)号：US20210344166A1

    公开(公告)日：2021-11-04

    申请号：US17032787

    申请日：2020-09-25

    Applicant: Lumentum Operations LLC

    Inventor： Shibnath PATHAK ,  Duanhua KONG ,  Michael C. LARSON ,  Amit MIZRAHI

    IPC: H01S5/068 ,  H01S5/06 ,  H01S5/22

    Abstract: In some implementations, a thermally-controlled photonic structure may include a suspended region that is suspended over a substrate; a plurality of bridge elements connected to the suspended region and configured to suspend the suspended region over the substrate, where a plurality of openings are defined between the plurality of bridge elements; and at least one heater element having a modulated width disposed on the suspended region. The at least one heater element having the modulated width may include at least one section of a greater width and at least one section of a lesser width. The at least one section of the greater width may be in alignment with an opening of the plurality of openings and the at least one section of the lesser width may be in alignment with a bridge element of the plurality of bridge elements.

    CALIBRATING AND CONTROLLING NESTED MACH-ZEHNDER INTERFEROMETER THAT INCLUDES PRE-STAGES
    9.
    发明申请
    CALIBRATING AND CONTROLLING NESTED MACH-ZEHNDER INTERFEROMETER THAT INCLUDES PRE-STAGES 有权

    公开(公告)号：US20210263387A1

    公开(公告)日：2021-08-26

    申请号：US16917113

    申请日：2020-06-30

    Applicant: Lumentum Operations LLC

    Inventor： Amit MIZRAHI ,  Michael C. LARSON

    IPC: G02F1/225 ,  G02B6/293

    Abstract: A nested Mach-Zehnder device may comprise a parent pre-stage interferometer, a parent interferometer coupled to the parent pre-stage interferometer, a first child pre-stage interferometer, a first child interferometer coupled to the first child pre-stage interferometer, a second child pre-stage interferometer, a second child interferometer coupled to the second child pre-stage interferometer, wherein a phase of each interferometer is electrically adjustable. The nested Mach-Zehnder device may comprise one or more components to: determine a performance parameter associated with a constellation diagram generated by the nested Mach-Zehnder device; determine that the performance parameter does not satisfy a threshold, and cause a phase of at least one pre-stage interferometer, of the parent pre-stage interferometer, the first child pre-stage interferometer, or the second child pre-stage interferometer, to be electrically adjusted to cause the performance parameter to satisfy the threshold.

    MULTI-CHANNEL LIDAR OPTICAL SUB-ASSEMBLY WITH SHARED OPTICS
    10.
    发明申请
    MULTI-CHANNEL LIDAR OPTICAL SUB-ASSEMBLY WITH SHARED OPTICS 有权

    公开(公告)号：US20210063541A1

    公开(公告)日：2021-03-04

    申请号：US16685409

    申请日：2019-11-15

    Applicant: Lumentum Operations LLC

    Inventor： Jiamin ZHENG ,  Barrie P. KEYWORTH ,  Josh P. KEMP ,  Michael C. LARSON ,  Paul COLBOURNE

    IPC: G01S7/481 ,  G01S7/499 ,  G01S17/32 ,  G01S7/491 ,  G02B27/28 ,  G02B6/12 ,  H04J14/06 ,  H04J14/02

    Abstract: An optical device may include a laser component to emit a source beam and an optical component to split the source beam to generate a first beam and a second beam. The optical device may include a multiplexing component to multiplex the first beam and the second beam to form a first multiplexed beam, an optical system to receive the first multiplexed beam and demultiplex the first beam and the second beam, and a scanning component to scan a field of view with the first beam and the second beam and receive the first beam and the second beam reflected from the field of view. The optical system may multiplex the first beam and the second beam reflected from the field of view to form a second multiplexed beam, and a demultiplexing component may demultiplex the first beam and the second beam reflected from the field of view.

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