Semiconductor laser module
    1.
    发明授权

    公开(公告)号:US11552455B2

    公开(公告)日:2023-01-10

    申请号:US16437465

    申请日:2019-06-11

    Abstract: A disclosed semiconductor laser module includes a semiconductor laser device; a semiconductor optical amplifier configured to receive laser light emitted from the semiconductor laser device and amplify the laser light that has been received; and a first light receiving device that measures an intensity of a part of the laser light emitted from the semiconductor laser device, for monitoring a wavelength of the laser light, wherein the semiconductor optical amplifier is located rearward in relation to a light receiving surface of the first light receiving device along a propagation direction of the laser light emitted from the semiconductor device.

    Lid portion and semiconductor laser module

    公开(公告)号:US11367993B2

    公开(公告)日:2022-06-21

    申请号:US16985289

    申请日:2020-08-05

    Abstract: A lid portion, that is mounted on a package that houses an optical isolator at a certain position, includes: a main body portion that is in contact with an upper end portion of a sidewall of the package; and a thick portion that is provided on a lower surface of the main body portion and determines a position of the lid portion with respect to the package. Further, the thick portion is provided on the lower surface other than a lower surface region of the main body portion, the lower surface region being directly above the optical isolator housed in the package when the lid portion is mounted on the package.

    Optical module
    5.
    发明授权

    公开(公告)号:US12191627B2

    公开(公告)日:2025-01-07

    申请号:US17397020

    申请日:2021-08-09

    Abstract: An optical module includes: an optical functional element outputting a first light beam; a first optical part receiving the first light beam, having a predetermined effect on the first light beam, and outputting the affected first light beam as a second light beam; a second optical part receiving the second light beam, having a predetermined effect on the second light beam, outputting the affected second light beam as a third light beam, and reflecting a reflected light beam in a direction not coupled to the first optical part, the reflected light beam being generated from the second light on an incident surface on which the second light beam is incident; a housing accommodating the optical functional element, the first optical part, and the second optical part; and an optical attenuator provided inside the housing and attenuating power of the reflected light beam incident on the optical attenuator.

    Optical module
    7.
    发明授权

    公开(公告)号:US10558063B2

    公开(公告)日:2020-02-11

    申请号:US15223594

    申请日:2016-07-29

    Abstract: An optical module includes an optical element configured to be driven at a high frequency, a circuit board arranged at a height different from a height of the optical element, and a wiring sub-mount including a wiring electrically connecting the optical element and the circuit board, the wiring being such that a height of a connection surface of one end portion of the wiring and a height of a connection surface of another end portion of the wiring are different from each other.

    Semiconductor laser module
    8.
    发明授权

    公开(公告)号:US11677210B2

    公开(公告)日:2023-06-13

    申请号:US16985277

    申请日:2020-08-05

    CPC classification number: H01S5/02251 H01S5/02253 H01S5/02326

    Abstract: A semiconductor laser module that includes a package accommodating therein a plurality of optical components, includes: a semiconductor laser device that emits laser light toward one end side in the package; an optical fiber having an incident end of the laser light on another end side in the package, the another end being in an opposite direction of an emission direction in which the semiconductor laser device emits the laser light; and a turn-back unit that turns back the laser light toward the another end side in the package, the another end being in the opposite direction of the emission direction in which the semiconductor laser device emits the laser light, and outputs the laser light to the incident end of the optical fiber.

    Optical module
    10.
    发明授权

    公开(公告)号:US11283234B2

    公开(公告)日:2022-03-22

    申请号:US16986391

    申请日:2020-08-06

    Abstract: An optical module includes: an optical component; a light receiving element receiving a laser beam through the optical component; a package housing the optical component and the light receiving unit; and a shielding portion that prevents stray light, which is generated by at least one of the laser beam and the laser beam emitted through the optical component is reflected or scattered in the package or at the optical component, from being incident on the light receiving element.

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