Single mode optical waveguide
    61.
    发明公开
    Single mode optical waveguide 失效
    Optischer Monomod-Wellenleiter。

    公开(公告)号:EP0255270A2

    公开(公告)日:1988-02-03

    申请号:EP87306341.6

    申请日:1987-07-17

    IPC分类号: G02B6/10 G02F1/00 G02B6/12

    摘要: In a single mode optical waveguide having a substrate (1), a cladding layer (3) formed on the substrate (1), a core portion (2) embedded in the cladding layer (3), and an elongated member (4a, 4b; 14; 14a, 14b) for applying a stress to the core portion (2) or a stress relief groove (5a, 5b; 64) for relieving a stress from the core portion (2) in the cladding layer (3) along the core portion (2). A position, shape and material of the elongated member (4a, 4b; 14; 14a, 14b) or the groove (5a, 5b; 64) are determined in such a way that stress-induced birefringence produced in the core portion (2) in accordance with a difference in thermal expansion coefficient between the substrate (1) and the single mode optical waveguide is a desired value.

    摘要翻译: 在具有基板(1),形成在基板(1)上的包覆层(3),嵌入包覆层(3)中的芯部(2))和细长部件(4a,4b)的单模光波导 用于向芯部施加应力的应力消除槽(5a,5b; 64),用于从包层(3)中的芯部(2)沿着沿着 芯部分(2)。 细长构件(4a,4b; 14; 14a,14b)或槽(5a,5b; 64)的位置,形状和材料以这样的方式确定,即在芯部分(2)中产生的应力引起的双折射 根据基板(1)和单模光波导之间的热膨胀系数的差异是期望值。

    Polariseur par absorption différentielle, son procédé de réalisation, et dispositif mettant en oeuvre ledit procédé
    62.
    发明公开

    公开(公告)号:EP0219401A1

    公开(公告)日:1987-04-22

    申请号:EP86402087.0

    申请日:1986-09-23

    申请人: THOMSON-CSF

    IPC分类号: G02B6/10 G02B6/12

    摘要: L'invention concerne un polariseur par absorption différentielle réalisé en optique intégrée
    Ce polariseur comporte, sur une couche guide d'onde (2) réalisé sur un substrat (1), une couche de matériau diélectrique (3) dont la surface (30) comporte des creux et des bosses et possède donc plusieurs zones inclinées (31). Les creux et les bosses délimitent des épaisseurs minimale (e m ) et maximale (e M ) de la couche (3) qui encadrent l'épaisseur de résonance du diélectrique pour le mode de polarisation (TM) à absorber.
    La couche (3) est de plus revêtue d'une couche métallique (4).
    L'invention concerne également un procédé permettant de réaliser un tel polariseur ainsi qu'un dispositif mettant en oeuvre ce procédé.

    OPTICAL SENSOR CHIP AND OPTICAL SENSING SYSTEM

    公开(公告)号:EP4425150A1

    公开(公告)日:2024-09-04

    申请号:EP22884921.2

    申请日:2022-02-25

    发明人: ZHANG, Xingyu

    IPC分类号: G01N21/21

    摘要: The invention provides an optical sensor chip and an optical sensing system, wherein the optical sensor chip of the invention comprises a bottom cladding, a top cladding stacked on the bottom cladding and an optical waveguide core, the optical waveguide core is arranged between the top cladding and the bottom cladding, the top cladding is provided with an opened region for accommodating a sample to be tested, a part of the optical waveguide core is exposed through the opened region, the optical waveguide core comprises a first polarization rotator and a first polarization splitter, the first polarization splitter includes one input port and two output ports for outputting polarized light, the first polarization rotator is provided with a first end and a second end, the second end of the first polarization rotator is communicated with the input port of the first polarization splitter, and a dimension of the first polarization rotator gradually increases from the first end to the second end. The optical sensor chip of the invention can be designed in different sizes as required, does not need to be provided in a large volume, is convenient to use, does not need a tunable laser, and is low in cost.

    POLARIZER AND POLARIZATION MODULATION SYSTEM

    公开(公告)号:EP3073302B1

    公开(公告)日:2018-09-26

    申请号:EP13899938.8

    申请日:2013-12-20

    IPC分类号: G02B6/27

    摘要: The present invention provides a polarizer and a polarization modulation system. The polarizer includes at least one MMI multi-mode waveguide, where one side of each MMI multi-mode waveguide is connected to an input waveguide, and the other side is connected to an output waveguide; an end portion of the side, on which the output waveguide is located, of the MMI multi-mode waveguide is provided with an adjustable portion, and the adjustable portion is connected to the output waveguide; and the polarizer further includes a controller connected to the adjustable portion, where the controller is configured to perform control to change a material property of the adjustable portion, so that the output waveguide outputs optical signals in different polarization states. The present invention implements adjustable polarization, and the structure is simple.

    MODE MATCHED Y-JUNCTION
    65.
    发明公开

    公开(公告)号:EP3367145A2

    公开(公告)日:2018-08-29

    申请号:EP18154859.5

    申请日:2018-02-02

    发明人: HORTH, Alexandre

    摘要: A mode-matched waveguide Y-junction with balanced or unbalanced splitting comprises an input waveguide, expanding from an input end to an output end, for expanding the input beam of light along a longitudinal axis; first and second output waveguides extending from the output end of the input waveguide separated by a gap. Ideally, each of the first and second output waveguides includes an initial section capable of supporting a fundamental super mode, and having an inner wall substantially parallel to the longitudinal axis, and a mode splitting section extending from the initial section at an acute angle to the longitudinal axis.

    POLARIZATION MODE CONVERTER
    67.
    发明公开

    公开(公告)号:EP3312647A4

    公开(公告)日:2018-07-04

    申请号:EP15898038

    申请日:2015-07-16

    发明人: TU XIN

    IPC分类号: G02B6/126 G02B6/14 H04J14/04

    摘要: A polarization mode converter is provided and includes a rectangular waveguide (101), a first tapered waveguide (102), and a second tapered waveguide (103). A height of the rectangular waveguide (101) is a first height H1. A side of the first tapered waveguide (102) is connected to the rectangular waveguide (101). A width of the first tapered waveguide (102) changes gradually. A height of the first tapered waveguide (102) is a second height H2, and the second height H2 is less than the first height H1. The second tapered waveguide (103) is unconnected to the rectangular waveguide (101), and the second tapered waveguide (103) is unconnected to the first tapered waveguide (102). A width of the second tapered waveguide (103) changes gradually. A height of the second tapered waveguide (103) is the first height H1. A distance between a first end of the second tapered waveguide (103) and the rectangular waveguide (101) is a first distance, a distance between a second end of the second tapered waveguide (103) and the rectangular waveguide (101) is a second distance, and the second distance is greater than the first distance. The first tapered waveguide (102) is located between the rectangular waveguide (101) and the second tapered waveguide (103).

    POLARIZATION MODE CONVERTER
    69.
    发明公开
    POLARIZATION MODE CONVERTER 审中-公开
    极化模式转换器

    公开(公告)号:EP3312647A1

    公开(公告)日:2018-04-25

    申请号:EP15898038.3

    申请日:2015-07-16

    发明人: TU, Xin

    IPC分类号: G02B6/126

    摘要: A polarization mode converter is provided and includes a rectangular waveguide (101), a first tapered waveguide (102), and a second tapered waveguide (103). A height of the rectangular waveguide (101) is a first height H1. A side of the first tapered waveguide (102) is connected to the rectangular waveguide (101). A width of the first tapered waveguide (102) changes gradually. A height of the first tapered waveguide (102) is a second height H2, and the second height H2 is less than the first height H1. The second tapered waveguide (103) is unconnected to the rectangular waveguide (101), and the second tapered waveguide (103) is unconnected to the first tapered waveguide (102). A width of the second tapered waveguide (103) changes gradually. A height of the second tapered waveguide (103) is the first height H1. A distance between a first end of the second tapered waveguide (103) and the rectangular waveguide (101) is a first distance, a distance between a second end of the second tapered waveguide (103) and the rectangular waveguide (101) is a second distance, and the second distance is greater than the first distance. The first tapered waveguide (102) is located between the rectangular waveguide (101) and the second tapered waveguide (103).

    摘要翻译: 提供偏振模转换器,并且包括矩形波导(101),第一锥形波导(102)和第二锥形波导(103)。 矩形波导(101)的高度是第一高度H1。 第一锥形波导(102)的一侧连接到矩形波导(101)。 第一锥形波导(102)的宽度逐渐变化。 第一锥形波导(102)的高度是第二高度H2,并且第二高度H2小于第一高度H1。 第二锥形波导(103)不连接到矩形波导(101),第二锥形波导(103)不连接到第一锥形波导(102)。 第二锥形波导(103)的宽度逐渐变化。 第二锥形波导(103)的高度是第一高度H1。 第二锥形波导(103)的第一端与矩形波导(101)之间的距离为第一距离,第二锥形波导(103)的第二端与矩形波导(101)之间的距离为第二距离 距离,并且第二距离大于第一距离。 第一锥形波导(102)位于矩形波导(101)和第二锥形波导(103)之间。

    Method and system for grating couplers incorporating perturbed waveguides
    70.
    发明授权
    Method and system for grating couplers incorporating perturbed waveguides 有权
    包含扰动波导的光栅耦合器的方法和系统

    公开(公告)号:EP2685298B1

    公开(公告)日:2018-02-21

    申请号:EP13175823.7

    申请日:2013-07-09

    申请人: Luxtera, Inc.

    IPC分类号: G02B6/34 G02B6/124

    摘要: Methods and systems for grating couplers (117A-117H) incorporating perturbed waveguides are disclosed and may include in a semiconductor photonics die (130), communicating optical signals into and/or out of the die utilizing a grating coupler (117A-117H) on the die, where the grating coupler comprises perturbed waveguides. The perturbed waveguides may comprise a variable width along their length. The grating coupler may comprise a single polarization grating coupler comprising perturbed waveguides and a non-perturbed grating. The grating coupler may comprise a polarization splitting grating coupler (PSGC) (403)that includes two sets of perturbed waveguides at a non-zero angle, or a plurality of non-linear rows of discrete shapes. The PSGC may comprise discrete scatterers (805) at an intersection of the sets of perturbed waveguides. The grating couplers may be etched in a silicon layer on the semiconductor photonics die or deposited on the semiconductor photonics die. The grating coupler may comprise individual scatterers (805) between the perturbed waveguides.