知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

13 records (took 0.021 seconds)

    Tunable laser source
    1.
    发明授权
    Tunable laser source 有权
    可调谐激光源

    公开(公告)号：US09312662B1

    公开(公告)日：2016-04-12

    申请号：US14502190

    申请日：2014-09-30

    Applicant: Lumentum Operations LLC

    Inventor： Michael C. Larson

    IPC: H01S5/50 ,  H01S5/00 ,  H01S5/026 ,  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。

    Thermally-controlled photonic structure
    2.
    发明授权
    Thermally-controlled photonic structure 有权

    公开(公告)号：US11502480B2

    公开(公告)日：2022-11-15

    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: H01S3/04 ,  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.

    Calibrating and controlling nested Mach-Zehnder interferometer that includes pre-stages
    3.
    发明授权
    Calibrating and controlling nested Mach-Zehnder interferometer that includes pre-stages 有权

    公开(公告)号：US11194220B2

    公开(公告)日：2021-12-07

    申请号：US16917113

    申请日：2020-06-30

    Applicant: Lumentum Operations LLC

    Inventor： Amit Mizrahi ,  Michael C. Larson

    IPC: G02F1/035 ,  G02F1/225 ,  G02B6/293 ,  G02F1/21

    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.

    Combined splitter, isolator and spot-size converter
    6.
    发明授权
    Combined splitter, isolator and spot-size converter 有权
    组合分离器，隔离器和点尺寸转换器

    公开(公告)号：US09563073B2

    公开(公告)日：2017-02-07

    申请号：US14316997

    申请日：2014-06-27

    Applicant: Lumentum Operations LLC

    Inventor： Wei Xiong ,  Michael C. Larson ,  Zhaoming Li ,  Fenhong Zhou

    IPC: G02B27/28 ,  G02F1/09 ,  G02B6/27 ,  G02B6/32 ,  G02B6/42

    CPC classification number: G02F1/093 ,  G02B6/2746 ,  G02B6/32 ,  G02B6/4209 ,  G02B6/4286

    Abstract: An integrated and compact multifunctional optical isolator (i.e., a combined splitter, isolator, and spot-size converter), which is suitable for use in a TOSA, includes input optics including a first polarizer, a Faraday rotator, and a second polarizer. The input optics include a wedge having a partially reflective coating disposed on a first face thereof. The input beam is incident on the first face at a non-normal angle of incidence such light passing through the wedge is refracted to a second face of the wedge, which is tilted relative to the first face by a predetermined wedge angle. At least one of the non-normal angle of incidence and the predetermined wedge angle is determined dependence upon a refractive index of the wedge material and a target anamorphic magnification of the input beam of light.

    Abstract translation: 适用于TOSA的集成且紧凑的多功能光隔离器（即，组合分离器，隔离器和点尺寸转换器）包括包括第一偏振器，法拉第转子和第二偏振器的输入光学器件。 输入光学器件包括具有设置在其第一面上的部分反射涂层的楔形物。 输入光束以非正常入射角入射在第一面上，通过楔形物的光折射到相对于第一面倾斜预定楔角的楔形物的第二面。 根据楔形材料的折射率和输入光束的目标变形倍率来确定非正常入射角和预定楔角中的至少一个。

Patent Agency Ranking