Optical phase shifter, optical interferometer based thereupon, and method of manufacture thereof

    公开(公告)号:US10386660B2

    公开(公告)日:2019-08-20

    申请号:US15476313

    申请日:2017-03-31

    Applicant: Jia Jiang

    Inventor: Jia Jiang

    Abstract: A phase shifting optical device and method of manufacture is provided. In an embodiment, the phase shifting optical device may include a first arm defining a first arm optical path, a second arm defining a second arm optical path, a beam splitter for splitting an input optical beam into first and second sub-beams for propagating in the first and second arm optical paths, respectively, and a beam combiner for combining the first and second sub-beams propagated in the first and second arm optical paths, respectively, into an output optical beam. The first arm including a carrier modification element to induce a phase shift in the first arm optical path relative to the second arm optical path. A cladding may be provided proximate to the first arm, the cladding having a temperature coefficient of refractive index (dn/dT)cl opposite in sign to a temperature coefficient of refractive index (dn/dT)a of the first arm.

    POLARIZATION-SPLIT WAVELENGTH FILTER
    4.
    发明申请
    POLARIZATION-SPLIT WAVELENGTH FILTER 审中-公开
    偏振分离波长滤波器

    公开(公告)号:US20160209593A1

    公开(公告)日:2016-07-21

    申请号:US14597928

    申请日:2015-01-15

    Applicant: Jia Jiang

    Inventor: Jia Jiang

    CPC classification number: G02B6/2773 G02B6/2934

    Abstract: A polarization-splitting and wavelength filter comprising an input waveguide for receiving an optical input with both a Transverse Electric (TE) polarization and a Transverse Magnetic (TM) polarizations. The polarization-splitting and wavelength filter includes a first ring/racetrack resonator disposed along the input waveguide wherein the first ring/racetrack resonator includes a first coupler for coupling the TE polarization of a first wavelength. The polarization-splitting and wavelength filter also includes a second ring/racetrack resonator disposed along the input waveguide, wherein the second ring/racetrack resonator includes a second coupler for coupling the TM polarization of a second wavelength.

    Abstract translation: 一种偏振分离和波长滤波器,包括用于接收具有横向电(TE)极化和横向磁(TM)偏振两者的光输入的输入波导。 偏振分离和波长滤光器包括沿着输入波导设置的第一环/轨道谐振器,其中第一环/轨道谐振器包括用于耦合第一波长的TE偏振的第一耦合器。 偏振分离和波长滤波器还包括沿着输入波导设置的第二环/轨道谐振器,其中第二环/轨道谐振器包括用于耦合第二波长的TM偏振的第二耦合器。

    Optical edge coupler with controllable mode field for photonic chip

    公开(公告)号:US10345524B2

    公开(公告)日:2019-07-09

    申请号:US15388861

    申请日:2016-12-22

    Abstract: An optical coupler at an edge of a photonic integrated circuit (PIC) is provided and configured to match a mode of a waveguide of the PIC to a mode of an external optical fiber. A core of the waveguide terminates prior to the edge and can include an inverted taper for mode enlargement. The waveguide cladding includes an inverted taper and is surrounded by an outer cladding material of lower refractive index, forming a second waveguide. The cladding and outer cladding cooperate to guide light between the core and the edge while the inverted taper contributes to mode enlargement. The outer cladding material is selected to have a refractive index which facilitates the mode matching to optical fiber. The coupler can be provided using lithography. Material underneath the waveguide cladding can be removed by an undercutting process and the outer cladding material deposited in place thereof.

    OPTICAL PHASE SHIFTER, OPTICAL INTERFEROMETER BASED THEREUPON, AND METHOD OF MANUFACTURE THEREOF

    公开(公告)号:US20180284493A1

    公开(公告)日:2018-10-04

    申请号:US15476313

    申请日:2017-03-31

    Applicant: Jia Jiang

    Inventor: Jia Jiang

    Abstract: A phase shifting optical device and method of manufacture is provided. In an embodiment, the phase shifting optical device may include a first arm defining a first arm optical path, a second arm defining a second arm optical path, a beam splitter for splitting an input optical beam into first and second sub-beams for propagating in the first and second arm optical paths, respectively, and a beam combiner for combining the first and second sub-beams propagated in the first and second arm optical paths, respectively, into an output optical beam. The first arm including a carrier modification element to induce a phase shift in the first arm optical path relative to the second arm optical path. A cladding may be provided proximate to the first arm, the cladding having a temperature coefficient of refractive index (dn/dT)cl opposite in sign to a temperature coefficient of refractive index (dn/dT)a of the first arm.

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