Slanted Bragg Grating gain flattening filter having spatially overlapping elementary filters and a manufacturing method therefor
    1.
    发明申请
    Slanted Bragg Grating gain flattening filter having spatially overlapping elementary filters and a manufacturing method therefor 失效
    具有空间重叠的基本滤波器的斜布拉格光栅增益平坦化滤波器及其制造方法

    公开(公告)号:US20060045422A1

    公开(公告)日:2006-03-02

    申请号:US10928293

    申请日:2004-08-26

    IPC分类号: G02B6/34

    CPC分类号: G02B6/02195

    摘要: An optical filter comprises a waveguide and a plurality of Slanted Bragg Gratings written in the waveguide, wherein at least two of the Slanted Bragg Gratings overlap one another. A method of producing an optical filter comprises the steps of passing an ultraviolet light through a first portion of a chirped phase mask onto a first portion of a photosensitive waveguide so as to form a first Slanted Bragg Grating in the first portion of the waveguide and passing the ultraviolet light through a second portion of the chirped phase mask onto a second portion of the photosensitive waveguide so as to form a second Slanted Bragg Grating in the second portion of the waveguide, wherein the first and second Slanted Bragg Gratings overlap one another. A further annealing step may cause a spectrum of the filter to match a target spectrum.

    摘要翻译: 光学滤波器包括写入波导中的波导和多个倾斜布拉格光栅,其中至少两个倾斜布拉格光栅彼此重叠。 一种制造滤光器的方法包括以下步骤:将紫外光通过啁啾相位掩模的第一部分传递到光敏波导的第一部分上,以在波导的第一部分中形成第一倾斜布拉格光栅,并通过 通过啁啾相位掩模的第二部分的紫外光掩模到光敏波导的第二部分上,以在波导的第二部分中形成第二倾斜布拉格光栅,其中第一和第二倾斜布拉格光栅彼此重叠。 进一步的退火步骤可以使滤光片的光谱与目标光谱相匹配。

    Suppresson of undesirable signal propagation mode(s) downstream of mode converter
    2.
    发明授权
    Suppresson of undesirable signal propagation mode(s) downstream of mode converter 失效
    抑制模式转换器下游不良信号传播模式

    公开(公告)号:US07724995B2

    公开(公告)日:2010-05-25

    申请号:US10566376

    申请日:2004-09-29

    IPC分类号: G02B6/26 G02B6/42

    CPC分类号: G02B6/02095 G02B6/14

    摘要: An optical device (D) is dedicated to the transformation of the propagation mode of optical signals. This device comprises at least a first mode converter (3) that is supplied with signals that are propagated in a first guided mode and that delivers the signals in a multimode fibre (4) partly in the first guided mode and partly in a second guided more of a higher order that the first. The multimode fibre (4) comprises at least first passive filtering means (R) which have the task of converting the first guided mode into at least one dissipative cladding mode in order to prevent or limit the propagation of the signals in this first guided mode while at the same time authorising the propagation of the signals having the second guided mode in the multimode fibre (4).

    摘要翻译: 光学装置(D)专用于光信号的传播模式的变换。 该装置至少包括第一模式转换器(3),该第一模式转换器(3)被提供有以第一引导模式传播的信号,并且以多模光纤(4)部分地以第一引导模式传送信号,并部分地以第二导向 一个较高的阶数是第一个。 多模光纤(4)至少包括第一无源滤波装置(R),其具有将第一导模转换成至少一个耗散包层模式的任务,以便防止或限制在该第一导向模式中的信号的传播,同时 同时授权在多模光纤(4)中传播具有第二引导模式的信号。

    Suppresson of Undesirable Signal Propagation Mode(S) Downstream of Mode Converter
    3.
    发明申请
    Suppresson of Undesirable Signal Propagation Mode(S) Downstream of Mode Converter 失效
    抑制模式转换器下游不良信号传播模式(S)

    公开(公告)号:US20090041410A1

    公开(公告)日:2009-02-12

    申请号:US10566376

    申请日:2004-09-29

    IPC分类号: G02B6/26

    CPC分类号: G02B6/02095 G02B6/14

    摘要: An optical device (D) is dedicated to the transformation of the propagation mode of optical signals. This device comprises at least a first mode converter (3) that is supplied with signals that are propagated in a first guided mode and that delivers the signals in a multimode fibre (4) partly in the first guided mode and partly in a second guided more of a higher order that the first. The multimode fibre (4) comprises at least first passive filtering means (R) which have the task of converting the first guided mode into at least one dissipative cladding mode in order to prevent or limit the propagation of the signals in this first guided mode while at the same time authorising the propagation of the signals having the second guided mode in the multimode fibre (4).

    摘要翻译: 光学装置(D)专用于光信号的传播模式的变换。 该装置至少包括第一模式转换器(3),该第一模式转换器(3)被提供有以第一引导模式传播的信号,并且以多模光纤(4)部分地以第一引导模式传送信号,并部分地以第二导向 一个较高的阶数是第一个。 多模光纤(4)至少包括第一无源滤波装置(R),其具有将第一导模转换成至少一个耗散包层模式的任务,以便防止或限制在该第一导向模式中的信号的传播,同时 同时授权在多模光纤(4)中传播具有第二引导模式的信号。

    Dynamic gain equalizing filter
    4.
    发明授权
    Dynamic gain equalizing filter 失效
    动态增益均衡滤波器

    公开(公告)号:US06873765B2

    公开(公告)日:2005-03-29

    申请号:US10412301

    申请日:2003-04-14

    摘要: A tuneable optical fibre comprising a long-period Bragg grating (5) written in a portion of an optical waveguide (10) comprising a core and an optical cladding (11), characterised in that the portion of the waveguide comprising the grating (5) is at least partially immersed in an external environment consisting of two distinct sections, a first section (1) whose refractive index is higher than that of the optical cladding (11) and a second section (2) whose refractive index is lower than that of the optical cladding (11), the long-period grating being at least partially immersed in one of the said sections so as to almost independently tune the wavelength and/or the contrast of the spectral response of the filter.

    摘要翻译: 一种可调谐光纤,包括写入包括芯和光学包层(11)的光波导(10)的一部分中的长周期布拉格光栅(5),其特征在于,包括光栅(5)的波导部分 至少部分地浸没在由两个不同部分组成的外部环境中,第一部分(1)的折射率高于光学包层(11)的折射率,第二部分(2)的折射率低于 所述光学包层(11),所述长周期光栅至少部分地浸没在所述部分之一中,以便几乎独立地调节所述滤光器的光谱响应的波长和/或对比度。

    Slanted Bragg grating gain flattening filter having spatially overlapping elementary filters and a manufacturing method therefor
    5.
    发明授权
    Slanted Bragg grating gain flattening filter having spatially overlapping elementary filters and a manufacturing method therefor 失效
    具有空间重叠的基本滤波器的倾斜布拉格光栅增益平坦化滤波器及其制造方法

    公开(公告)号:US07376306B2

    公开(公告)日:2008-05-20

    申请号:US10928293

    申请日:2004-08-26

    IPC分类号: G02B6/34

    CPC分类号: G02B6/02195

    摘要: An optical filter comprises a waveguide and a plurality of Slanted Bragg Gratings written in the waveguide, wherein at least two of the Slanted Bragg Gratings overlap one another. A method of producing an optical filter comprises the steps of passing an ultraviolet light through a first portion of a chirped phase mask onto a first portion of a photosensitive waveguide so as to form a first Slanted Bragg Grating in the first portion of the waveguide and passing the ultraviolet light through a second portion of the chirped phase mask onto a second portion of the photosensitive waveguide so as to form a second Slanted Bragg Grating in the second portion of the waveguide, wherein the first and second Slanted Bragg Gratings overlap one another. A further annealing step may cause a spectrum of the filter to match a target spectrum.

    摘要翻译: 光学滤波器包括写入波导中的波导和多个倾斜布拉格光栅,其中至少两个倾斜布拉格光栅彼此重叠。 一种制造滤光器的方法包括以下步骤:将紫外光通过啁啾相位掩模的第一部分传递到光敏波导的第一部分上,以在波导的第一部分中形成第一倾斜布拉格光栅,并通过 通过啁啾相位掩模的第二部分的紫外光掩模到光敏波导的第二部分上,以在波导的第二部分中形成第二倾斜布拉格光栅,其中第一和第二倾斜布拉格光栅彼此重叠。 进一步的退火步骤可以使滤光片的光谱与目标光谱相匹配。

    Optical amplification system
    6.
    发明申请
    Optical amplification system 审中-公开
    光放大系统

    公开(公告)号:US20060285199A1

    公开(公告)日:2006-12-21

    申请号:US11101552

    申请日:2005-04-08

    IPC分类号: H01S3/00

    CPC分类号: H04B10/296 G02B6/02095

    摘要: An optical amplification system is described which comprises an optical amplifier and an optical filter. The gain of the optical amplifier is changeable to different gain values. For every one of the gain values, a wavelength-dependent gain curve exists. At least for one of the gain values, the gain curve varies over the wavelength. An apodized long-period grating (LPG) is used as the optical filter. The apodized LPG provides at least one wavelength-dependent attenuation curve which compensates the gain curve varying over the wavelength.

    摘要翻译: 描述了包括光放大器和滤光器的光放大系统。 光放大器的增益可以改变为不同的增益值。 对于每个增益值,存在波长相关的增益曲线。 至少对于增益值之一,增益曲线在波长上变化。 使用变迹长周期光栅(LPG)作为滤光器。 变迹的LPG提供至少一个波长依赖的衰减曲线,其补偿在波长上变化的增益曲线。

    Optical device comprising an optical component and an optical medium with different refractive indices
    7.
    发明授权
    Optical device comprising an optical component and an optical medium with different refractive indices 有权
    光学装置包括光学部件和具有不同折射率的光学介质

    公开(公告)号:US07613378B2

    公开(公告)日:2009-11-03

    申请号:US11146123

    申请日:2005-06-07

    IPC分类号: G02B6/00

    CPC分类号: G02B1/06 G02B1/02 G02B6/0239

    摘要: The present invention consists in an optical device comprising an optical component and an optical medium with different refractive indices, said optical component being at least partly immersed in said optical medium, which device is characterized in that said optical medium contains a salt that is in the liquid state in the range of temperatures at which said optical component is used and stored, i.e. in a range of temperatures generally from −40° C. to +200° C. The optical component may in particular be a Bragg long-period grating (LPG) or a photonic crystal fiber.

    摘要翻译: 本发明包括一种光学装置,其包括光学部件和具有不同折射率的光学介质,所述光学部件至少部分地浸没在所述光学介质中,该装置的特征在于所述光学介质包含位于 在所述光学部件被使用和存储的温度范围内,即在通常为-40℃至+ 200℃的温度范围内的液体状态。光学部件可以特别地是布拉格长周期光栅( LPG)或光子晶体光纤。

    Optical device comprising an optical component and an optical medium with different refractive indices
    8.
    发明申请
    Optical device comprising an optical component and an optical medium with different refractive indices 有权
    光学装置包括光学部件和具有不同折射率的光学介质

    公开(公告)号:US20050276541A1

    公开(公告)日:2005-12-15

    申请号:US11146123

    申请日:2005-06-07

    CPC分类号: G02B1/06 G02B1/02 G02B6/0239

    摘要: The present invention consists in an optical device comprising an optical component and an optical medium with different refractive indices, said optical component being at least partly immersed in said optical medium, which device is characterized in that said optical medium contains a salt that is in the liquid state in the range of temperatures at which said optical component is used and stored, i.e. in a range of temperatures generally from −40° C. to +200° C. The optical component may in particular be a Bragg long-period grating (LPG) or a photonic crystal fiber.

    摘要翻译: 本发明包括一种光学装置,其包括光学部件和具有不同折射率的光学介质,所述光学部件至少部分地浸没在所述光学介质中,该装置的特征在于所述光学介质包含位于 在所述光学部件被使用和存储的温度范围内,即在通常为-40℃至+ 200℃的温度范围内的液体状态。光学部件可以特别地是布拉格长周期光栅( LPG)或光子晶体光纤。