公开(公告)号：US20070297738A1

公开(公告)日：2007-12-27

申请号：US11630320

申请日：2004-07-09

Applicant: Timo Aalto

Inventor： Timo Aalto

IPC: G02B6/24

CPC classification number: G02B6/02042 ,  G02B6/02 ,  G02B6/30

Abstract: The present invention concerns an optical fiber acting as a slab-coupled waveguide. The optical fiber has a cross-section comprising a core (1), which is two dimensional and responsible for the horizontal confinement of the fiber's fundamental mode. A slab (2) is placed in the vicinity of the core (1). The slab (2) extends substantially in a plane, acts as a mode sink for the core, and is at least three times wider than the core (1). A cladding (3) surrounds the core (1) and the slab (2). The cladding (3) is made of one or several materials with refractive indices lower than the core and slab materials. The core (1), slab (2) and cladding (3) and any other protective or supportive structures attached to them form an overall structure that determines the mechanical properties of the fiber. The cross-section of the fiber is formed to make the fiber significantly more flexible in the direction perpendicular to the plane of the slab than in the plane of the slab.

Abstract translation: 本发明涉及一种用作平板耦合波导的光纤。 光纤具有包括芯（1）的横截面，其是二维的，并且负责纤维的基本模式的水平限制。 板（2）放置在芯（1）附近。 板坯（2）基本上在平面上延伸，用作芯体的模槽，并且比芯（1）至少三倍。 包层（3）围绕芯部（1）和板坯（2）。 包层（3）由折射率低于芯材和板材的一种或几种材料制成。 核心（1），板坯（2）和包层（3）以及与其连接的任何其他保护或支撑结构形成确定纤维的机械性能的整体结构。 纤维的横截面形成为使得纤维在与板坯平面垂直的方向上比在板的平面中显着更加柔韧。

公开(公告)号：US20060088239A1

公开(公告)日：2006-04-27

申请号：US10526477

申请日：2003-09-04

Applicant: Timo Aalto ,  Markku Kapulainen ,  Mikko Harjanne ,  Markku Rono

Inventor： Timo Aalto ,  Markku Kapulainen ,  Mikko Harjanne ,  Markku Rono

IPC: G02B6/26

CPC classification number: G02F1/2257 ,  G02F1/0147 ,  G02F1/3133 ,  G02F2201/126

Abstract: A method for controlling an optoelectronic component that includes two waveguides. The refractive index of the first waveguide is changed periodically with a first control signal, the amplitude of which is changed between a first amplitude level and higher second amplitude level. The refractive index of the second waveguide is changed periodically with a second control signal, the amplitude of which is changed between the aforementioned first amplitude level and a lower third amplitude level. When the control signals are on their common first amplitude level, the refractive indices of the waveguides are equal and the phase difference between them is zero. When the first control signal is on the second amplitude level and the second control signal on the third amplitude level, the refractive indices of the waveguides are unequal so that their mutual phase difference has a predetermined target value.

Abstract translation: 一种用于控制包括两个波导的光电子部件的方法。 第一波导的折射率以第一控制信号周期性地改变，第一控制信号的幅度在第一幅度电平和较高的第二幅度电平之间变化。 第二波导的折射率以第二控制信号周期性地改变，第二控制信号的振幅在上述第一幅度电平和较低的第三幅度电平之间变化。 当控制信号处于共同的第一幅度电平时，波导的折射率相等，它们之间的相位差为零。 当第一控制信号处于第二幅度电平并且第三控制信号处于第三幅度电平时，波导的折射率不相等，使得它们的相位差具有预定的目标值。

公开(公告)号：US20050213912A1

公开(公告)日：2005-09-29

申请号：US10510746

申请日：2003-04-11

Applicant: Timo Aalto

Inventor： Timo Aalto

IPC: G02B6/12 ,  G02B6/122 ,  G02B6/125 ,  G02B6/136 ,  G02B6/10 ,  G02B6/26 ,  G02B6/42

CPC classification number: G02B6/136 ,  G02B6/1228 ,  G02B6/125 ,  G02B2006/12097

Abstract: A waveguide, which is part of an integrated optical circuit is arranged onto a planar substrate, and has a core section propagating light to a direction of propagation. The waveguide is a conversion waveguide between a ridge-type waveguide and a strip waveguide. In the conversion waveguide, the core section is made of the one and same material so that the cross-section of the core section transverse to the direction of propagation of light is two-step from both edges. The conversion waveguide has two layers of different widths so that the height of the first layer is equal to the height of the ridge of the ridge-type waveguide, and the height of the second layer is equal to the height of the base part of the ridge-type waveguide.

Abstract translation: 作为集成光电路的一部分的波导被布置在平面基板上，并且具有将光传播到传播方向的核心部分。 波导是脊型波导和带状波导之间的转换波导。 在转换波导中，芯部由相同的材料制成，使得芯部横截于光的传播方向的横截面从两个边缘两步。 转换波导具有不同宽度的两层，使得第一层的高度等于脊型波导的脊的高度，并且第二层的高度等于第二层的基部的高度 脊型波导。

公开(公告)号：US07386196B2

公开(公告)日：2008-06-10

申请号：US10526477

申请日：2003-09-04

Applicant: Timo Aalto ,  Markku Kapulainen ,  Mikko Harjanne ,  Markku Rono

Inventor： Timo Aalto ,  Markku Kapulainen ,  Mikko Harjanne ,  Markku Rono

IPC: G02F1/035

CPC classification number: G02F1/2257 ,  G02F1/0147 ,  G02F1/3133 ,  G02F2201/126

Abstract: A method for controlling an optoelectronic component that includes two waveguides. The refractive index of the first waveguide is changed periodically with a first control signal, the amplitude of which is changed between a first amplitude level and higher second amplitude level. The refractive index of the second waveguide is changed periodically with a second control signal, the amplitude of which is changed between the aforementioned first amplitude level and a lower third amplitude level. When the control signals are on their common first amplitude level, the refractive indices of the waveguides are equal and the phase difference between them is zero. When the first control signal is on the second amplitude level and the second control signal on the third amplitude level, the refractive indices of the waveguides are unequal so that their mutual phase difference has a predetermined target value.

Abstract translation: 一种用于控制包括两个波导的光电子部件的方法。 第一波导的折射率以第一控制信号周期性地改变，第一控制信号的幅度在第一幅度电平和较高的第二幅度电平之间变化。 第二波导的折射率以第二控制信号周期性地改变，第二控制信号的振幅在上述第一幅度电平和较低的第三幅度电平之间变化。 当控制信号处于共同的第一幅度电平时，波导的折射率相等，它们之间的相位差为零。 当第一控制信号处于第二幅度电平并且第三控制信号处于第三幅度电平时，波导的折射率不相等，使得它们的相位差具有预定的目标值。

公开(公告)号：US20100103969A1

公开(公告)日：2010-04-29

申请号：US12520135

申请日：2007-12-21

Applicant: Timo Aalto

Inventor： Timo Aalto

IPC: H01S5/183 ,  H01S5/065 ,  H01S3/08

CPC classification number: H01S5/18394 ,  H01S5/0425 ,  H01S5/18391 ,  H01S2301/166

Abstract: A VCSEL (Vertical Cavity Surface Emitting Laser) structure (1), wherein at least one cross-section of the VCSEL structure perpendicular to the optical axis (2) of the VCSEL structure comprises a mode selecting shape (10) promoting output of the fundamental transverse mode of the resonator while suppressing output of the higher modes. According to the present invention, the mode selecting shape (10) comprises a longitudinal portion (101) being directed past the optical axis (2) and having a one-sided broadening (102) forming a central area (103) around the optical axis, the geometry of the mode selecting shape being chosen to concentrate the fundamental mode in the central area while guiding the possible higher modes away from the optical axis through the longitudinal portion.

Abstract translation: VCSEL（垂直腔表面发射激光）结构（1），其中垂直于VCSEL结构的光轴（2）的VCSEL结构的至少一个截面包括促进基底的输出的模式选择形状（10） 同时抑制较高模式的输出。 根据本发明，模式选择形状（10）包括被引导通过光轴（2）的纵向部分（101），并且具有围绕光轴形成中心区域（103）的单面变宽（102） 选择模式选择形状的几何形状以将基模集中在中心区域，同时通过纵向部分引导可能的较高模式远离光轴。

公开(公告)号：US20070286552A1

公开(公告)日：2007-12-13

申请号：US11579581

申请日：2004-05-18

Applicant: Timo Aalto

Inventor： Timo Aalto

IPC: G02B6/26

CPC classification number: G02B6/125 ,  G02B2006/12147 ,  G02B2006/12195

Abstract: A structure comprises an inner strip waveguide (1) and an outer rib waveguide (2) on a common substrate. The thicker inner waveguide (1) is patterned into an inner core layer (3). The thinner outer waveguide (2) is patterned into an outer core layer (4). The inner and outer waveguides are separated by a gap (5) being less than 500 nm. The structure forms an adiabatic coupler. In the method, the first (inner) waveguide (1) is patterned into the thicker inner core layer (3) by etching trenches (8). A thinner outer silicon layer (4) is attached on top of the inner-core layer (3) and the first waveguide (1) to form an outer core layer (4). The second (outer) waveguide (2) is patterned into the outer core layer (4).

Abstract translation: 一种结构包括在公共衬底上的内条波导（1）和外肋波导（2）。 较厚的内部波导（1）被图案化成内部芯层（3）。 较薄的外波导（2）被图案化成外芯层（4）。 内波导和外波导由小于500nm的间隙（5）分开。 该结构形成绝热耦合器。 在该方法中，通过蚀刻沟槽（8）将第一（内部）波导（1）图案化成较厚的内芯层（3）。 在内核层（3）和第一波导（1）的顶部上安装较薄的外硅层（4）以形成外芯层（4）。 将第二（外）波导（2）图案化成外芯层（4）。

公开(公告)号：US07519251B2

公开(公告)日：2009-04-14

申请号：US11630320

申请日：2004-07-09

Applicant: Timo Aalto

Inventor： Timo Aalto

IPC: G02B6/26 ,  G02B6/02

CPC classification number: G02B6/02042 ,  G02B6/02 ,  G02B6/30

Abstract: The present invention concerns an optical fiber acting as a slab-coupled waveguide. The optical fiber has a cross-section comprising a core (1), which is two dimensional and responsible for the horizontal confinement of the fiber's fundamental mode. A slab (2) is placed in the vicinity of the core (1). The slab (2) extends substantially in a plane, acts as a mode sink for the core, and is at least three times wider than the core (1). A cladding (3) surrounds the core (1) and the slab (2). The cladding (3) is made of one or several materials with refractive indices lower than the core and slab materials. The core (1), slab (2) and cladding (3) and any other protective or supportive structures attached to them form an overall structure that determines the mechanical properties of the fiber. The cross-section of the fiber is formed to make the fiber significantly more flexible in the direction perpendicular to the plane of the slab than in the plane of the slab.

Abstract translation: 本发明涉及一种用作平板耦合波导的光纤。 光纤具有包括芯（1）的横截面，其是二维的，并且负责纤维的基本模式的水平限制。 板（2）放置在芯（1）附近。 板坯（2）基本上在平面上延伸，用作芯体的模槽，并且比芯（1）至少三倍。 包层（3）围绕芯部（1）和板坯（2）。 包层（3）由折射率低于芯材和板材的一种或几种材料制成。 核心（1），板坯（2）和包层（3）以及与其连接的任何其他保护或支撑结构形成确定纤维的机械性能的整体结构。 纤维的横截面形成为使得纤维在与板坯平面垂直的方向上比在板的平面中显着更加柔韧。

公开(公告)号：US07469084B2

公开(公告)日：2008-12-23

申请号：US11579581

申请日：2004-05-18

Applicant: Timo Aalto

Inventor： Timo Aalto

IPC: G02B6/26 ,  G02B6/30 ,  G02B6/10

CPC classification number: G02B6/125 ,  G02B2006/12147 ,  G02B2006/12195

Abstract: A structure comprises an inner strip waveguide (1) and an outer rib waveguide (2) on a common substrate. The thicker inner waveguide (1) is patterned into an inner core layer (3). The thinner outer waveguide (2) is patterned into an outer core layer (4). The inner and outer waveguides are separated by a gap (5) being less than 500 nm. The structure forms an adiabatic coupler. In the method, the first (inner) waveguide (1) is patterned into the thicker inner core layer (3) by etching trenches (8). A thinner outer silicon layer (4) is attached on top of the inner-core layer (3) and the first waveguide (1) to form an outer core layer (4). The second (outer) waveguide (2) is patterned into the outer core layer (4).

Abstract translation: 一种结构包括在公共衬底上的内条波导（1）和外肋波导（2）。 较厚的内部波导（1）被图案化成内部芯层（3）。 较薄的外波导（2）被图案化成外芯层（4）。 内波导和外波导由小于500nm的间隙（5）分开。 该结构形成绝热耦合器。 在该方法中，通过蚀刻沟槽（8）将第一（内部）波导（1）图案化成较厚的内芯层（3）。 在内核层（3）和第一波导（1）的顶部上安装较薄的外硅层（4）以形成外芯层（4）。 将第二（外）波导（2）图案化成外芯层（4）。

公开(公告)号：US07221843B2

公开(公告)日：2007-05-22

申请号：US10510746

申请日：2003-04-11

Applicant: Timo Aalto

Inventor： Timo Aalto

IPC: G02B6/10 ,  G02B6/26 ,  G02B6/42

CPC classification number: G02B6/136 ,  G02B6/1228 ,  G02B6/125 ,  G02B2006/12097

Abstract: A waveguide, which is part of an integrated optical circuit is arranged onto a planar substrate, and has a core section propagating light to a direction of propagation. The waveguide is a conversion waveguide between a ridge-type waveguide and a strip waveguide. In the conversion waveguide, the core section is made of the one and same material so that the cross-section of the core section transverse to the direction of propagation of light is two-step from both edges. The conversion waveguide has two layers of different widths so that the height of the first layer is equal to the height of the ridge of the ridge-type waveguide, and the height of the second layer is equal to the height of the base part of the ridge-type waveguide.

Abstract translation: 作为集成光电路的一部分的波导被布置在平面基板上，并且具有将光传播到传播方向的核心部分。 波导是脊型波导和带状波导之间的转换波导。 在转换波导中，芯部由相同的材料制成，使得芯部横截于光的传播方向的横截面从两个边缘两步。 转换波导具有不同宽度的两层，使得第一层的高度等于脊型波导的脊的高度，并且第二层的高度等于第二层的基部的高度 脊型波导。