Optical fiber coupler with low loss and high coupling coefficient and method of fabrication thereof
    1.
    发明授权
    Optical fiber coupler with low loss and high coupling coefficient and method of fabrication thereof 失效
    具有低损耗和高耦合系数的光纤耦合器及其制造方法

    公开(公告)号:US07308173B2

    公开(公告)日:2007-12-11

    申请号:US11015565

    申请日:2004-12-18

    IPC分类号: G02B6/26 G02B6/42

    摘要: An optical fiber coupler capable of providing a low loss, high coupling coefficient interface between conventional optical fibers and optical waveguide devices is provided. The novel coupler, which may be polarization maintaining, if a polarization maintaining preform is used in its fabrication includes a core, a cladding, a first end for interfacing with an optical fiber and a second end for interfacing with an optical waveguide device. The sizes of the core and cladding are gradually reduced from the first end to the second end in accordance with a predetermined reduction profile. Various parameters, such as refractive indices and sizes of the core and cladding and the reduction profile are selected to produce a low numerical aperture at the first end and a high numerical aperture at the second end, while advantageously minimizing insertion loss and maximizing the coupling coefficient at each end. In another embodiment, the novel coupler includes a secondary cladding which is also reduced between the first and second ends to improve the strength of the coupler structure at the second end. In yet another embodiment, one or two novel couplers are formed along with a chiral fiber based optical waveguide device as a single continuous element. The optical fiber preform used to fabricate the novel optical fiber coupler can be etched prior to fabrication to facilitate application of the reduction profile.

    摘要翻译: 提供了能够提供常规光纤和光波导器件之间的低损耗高耦合系数接口的光纤耦合器。 如果在其制造中使用偏振保持预制件,则可以是偏振保持的新型耦合器包括芯,包层,用于与光纤连接的第一端和用于与光波导器件接口的第二端。 芯和包层的尺寸根据预定的减小曲线从第一端逐渐减小到第二端。 选择各种参数,例如芯和包层的折射率和尺寸以及减小分布,以在第一端产生低数值孔径,在第二端产生高数值孔径,同时有利地使插入损耗最小化并使耦合系数最大化 在每一端 在另一个实施例中,新型耦合器包括次级包层,其也在第一和第二端之间减小,以提高第二端处的耦合器结构的强度。 在另一个实施例中,一个或两个新颖的耦合器与作为单个连续元件的基于手性光纤的光波导器件一起形成。 用于制造新型光纤耦合器的光纤预制件可以在制造之前进行蚀刻,以便于应用减薄曲线。

    Optimized Configurable Pitch Reducing Optical Fiber Coupler Array
    2.
    发明申请
    Optimized Configurable Pitch Reducing Optical Fiber Coupler Array 审中-公开
    优化可配置节距减少光纤耦合器阵列

    公开(公告)号:US20150212274A1

    公开(公告)日:2015-07-30

    申请号:US14677810

    申请日:2015-04-02

    IPC分类号: G02B6/30

    摘要: The inventive optical fiber coupler array is capable of providing a low-loss, high-coupling coefficient interface with high accuracy and easy alignment between a plurality of optical fibers (or other optical devices) with a first channel-to-channel spacing, and an optical device having a plurality of closely-spaced waveguide interfaces with a second channel-to-channel spacing, where each end of the optical fiber coupler array is configurable to have different channel-to-channel spacing, each matched to a corresponding one of the first and second channel-to-channel spacing. The novel optical coupler array includes a plurality of waveguides (at least one of which may optionally be polarization maintaining), that comprises at least one gradually reduced vanishing core fiber, at least in part embedded within a common housing structure. Alternatively, the novel coupler array may be configured for utilization with at least one of an optical fiber amplifier and an optical fiber laser. Advantageously, the refractive indices and sizes of both inner and outer core, and/or other characteristics of vanishing core waveguides in the novel optical coupler array are optimized to reduce the back reflection for light propagating from the plurality of the optical fibers at the coupler first end to the optical device at the coupler second end, and/or vice versa.

    摘要翻译: 本发明的光纤耦合器阵列能够提供具有第一通道至沟道间隔的多个光纤(或其他光学器件)之间的高精度和易于对准的低损耗高耦合系数接口,以及 光学装置具有多个具有第二通道至沟道间隔的紧密间隔的波导接口,其中光纤耦合器阵列的每个端部可配置为具有不同的通道间通道,每个与通道间隔 第一和第二通道间距。 新颖的光耦合器阵列包括多个波导(其中的至少一个可以可选地是偏振维持),其包括至少部分地嵌入公共壳体结构内的至少一个逐渐减少的消失的芯光纤。 或者,新颖的耦合器阵列可以被配置为与光纤放大器和光纤激光器中的至少一个一起使用。 有利地,新颖的光耦合器阵列中的消除芯波导的内芯和外芯的折射率和/或其它特性被优化以减少在耦合器第一时从多个光纤传播的光的背反射 在耦合器第二端处连接到光学装置,和/或反之亦然。

    OPTICAL COMPONENT ASSEMBLY FOR USE WITH AN OPTICAL DEVICE
    3.
    发明申请
    OPTICAL COMPONENT ASSEMBLY FOR USE WITH AN OPTICAL DEVICE 有权
    光学元件组件与光学器件一起使用

    公开(公告)号:US20140294345A1

    公开(公告)日:2014-10-02

    申请号:US14306217

    申请日:2014-06-16

    IPC分类号: G02B6/28

    CPC分类号: G02B6/30

    摘要: The inventive optical component assembly advantageously enables a multi-waveguide optical component (such as the inventive optical fiber coupler array, a multi-core optical fiber, etc.), to be coupled to at least one waveguide of an optical device at a predefined coupling angle. The optical component assembly of the present invention comprises a multi-waveguide optical component with an output end, a prism having an input surface, an output surface, and an internal reflective surface with a predefined reflection angle, and a GRIN lens, positioned between the component output end and the prism input surface, along a longitudinal axis of the multi-waveguide optical component. In accordance with the present invention, the length of the GRIN lens, and its refractive index gradient profile are optimized to form an optical image of the output end of the multi-waveguide optical component, at the output surface of the prism, thus enabling the output surface of the prism to be coupled to at least one waveguide of an optical device, with the predefined reflection angle corresponding to the angle at which the multi-waveguide optical component may be coupled to the optical device.

    摘要翻译: 本发明的光学部件组件有利地使得多波导光学部件(例如本发明的光纤耦合器阵列,多芯光纤等)能够以预定的耦合耦合到光学器件的至少一个波导 角度。 本发明的光学部件组件包括具有输出端的多波导光学部件,具有输入表面的棱镜,输出表面和具有预定反射角的内部反射表面,以及位于 分量输出端和棱镜输入表面沿着多波导光学部件的纵向轴线。 根据本发明,GRIN透镜的长度及其折射率梯度分布被优化以在棱镜的输出表面上形成多波导光学部件的输出端的光学图像,因此能够 所述棱镜的输出表面将被耦合到光学装置的至少一个波导,其中所述预定反射角度对应于所述多波导光学部件可耦合到所述光学装置的角度。

    Optical fiber mode coupling device, having an optimized fiber interface and method of fabrication thereof
    4.
    发明授权
    Optical fiber mode coupling device, having an optimized fiber interface and method of fabrication thereof 有权
    光纤模式耦合器件,具有优化的光纤接口及其制造方法

    公开(公告)号:US08457456B2

    公开(公告)日:2013-06-04

    申请号:US12254758

    申请日:2008-10-20

    IPC分类号: G02B6/26

    摘要: An optical fiber mode coupling device, capable of being readily connected to a conventional optical fiber with a high degree of ruggedness, is provided. The inventive mode coupling device only allows transmission of at least one supported fiber mode therethrough, and is preferably configured to maximize the coupling, of at least one desired fiber mode, to the at least one supported fiber mode. Advantageously, the inventive mode coupling device is capable of performing the functions of a mode filter for the signal entering its first end, or serving as a mode conditioner for the signal entering its opposite second end. Thus, in one practical application thereof, the novel mode coupling device functions as a mode filter by maximizing the coupling between at least one desired fiber mode of a multi-mode input signal entering the device's first end, and at least one supported mode of the device, to produce an output signal at the device's second end that comprises at least one predetermined fiber mode, corresponding to at least one desired fiber mode. In another practical application thereof, the novel mode coupling device functions as a mode conditioner by maximizing the coupling between an input signal, comprising at least one predetermined fiber mode, that enters the device's second end, and, and at least one supported mode of the device, to produce an output signal at the device's first end that comprises at least one desired fiber mode, corresponding to a conditioned at least one predetermined fiber mode.

    摘要翻译: 提供了能够容易地连接到具有高度坚固性的常规光纤的光纤模式耦合装置。 本发明的模式耦合装置仅允许透射至少一个支撑的光纤模式,并且优选地被配置为使至少一个所需光纤模式的耦合最大化到所述至少一个支持的光纤模式。 有利地,本发明的模式耦合装置能够执行用于进入其第一端的信号的模式滤波器的功能,或者用作用于进入其相对的第二端的信号的模式调节器。 因此,在其一个实际应用中,新型模式耦合器件通过使进入器件的第一端的多模式输入信号的至少一个所需光纤模式与至少一个支持的模式 设备,以在设备的第二端产生包括对应于至少一个所需光纤模式的至少一个预定光纤模式的输出信号。 在另一个实际应用中,新颖的模式耦合器件通过最大化进入器件的第二端的至少一个预定的光纤模式的输入信号与至少一个支持的模式 设备,以在设备的第一端产生包括至少一个期望的光纤模式的输出信号,对应于经调节的至少一个预定的光纤模式。

    Configurable Chiral Fiber Tip-Positioned Sensor
    5.
    发明申请
    Configurable Chiral Fiber Tip-Positioned Sensor 审中-公开
    可配置手性光纤尖端定位传感器

    公开(公告)号:US20130188175A1

    公开(公告)日:2013-07-25

    申请号:US13354688

    申请日:2012-01-20

    IPC分类号: G01N21/17

    CPC分类号: G01K11/3206 G01N21/21

    摘要: The inventive configurable chiral fiber sensor with a tip-positioned sensing element, is readily configurable for use in a variety of applications (such as applications involving pressure, temperature, and even axial twist sensing), and is particularly suitable for applications requiring highly precise and accurate sensor readings within corresponding predefined limited sensing ranges. Advantageously, the inventive configurable chiral fiber sensor with a tip-positioned sensing element, is operable to utilize a wide variety of light sources, photodetectors, and related devices for sensor interrogation.

    摘要翻译: 具有尖端定位的感测元件的本发明的可配置手性光纤传感器易于配置以用于各种应用(例如涉及压力,温度,甚至轴向扭转感测的应用),并且特别适用于需要高精度和 精确的传感器读数在相应的预定义的有限感应范围 有利地,具有尖端定位的感测元件的本发明的可配置手性光纤传感器可操作以利用各种各样的光源,光电检测器和相关设备进行传感器询问。

    High Density Optical Packaging Header Apparatus
    6.
    发明申请
    High Density Optical Packaging Header Apparatus 审中-公开
    高密度光学包装头装置

    公开(公告)号:US20120257857A1

    公开(公告)日:2012-10-11

    申请号:US13442175

    申请日:2012-04-09

    IPC分类号: G02B6/38

    摘要: The inventive high density optical packaging header apparatus, in various embodiments thereof, provides configurable, modular, and highly versatile solutions for simultaneously connecting multiple optical fibers/waveguides to optical-fiber-based electronic systems, components, and devices, and is readily usable in a variety of applications involving highly flexible and modular connection of multiple optical fibers/waveguides assembled in a header block configuration to optical-fiber-based system/component backplanes, while providing advantageous active and passive alignment features.

    摘要翻译: 本发明的高密度光学包装集管装置在其各种实施例中提供了用于将多个光纤/波导同时连接到基于光纤的电子系统,部件和装置的可配置的,模块化和高度通用的解决方案,并且可以容易地用于 各种应用涉及以标头块配置组装成基于光纤的系统/组件背板的多个光纤/波导的高度灵活和模块化连接,同时提供有利的主动和被动对准特征。

    Dual twist single helix optical fiber grating
    7.
    发明授权
    Dual twist single helix optical fiber grating 失效
    双捻单螺旋光纤光栅

    公开(公告)号:US08218921B2

    公开(公告)日:2012-07-10

    申请号:US12502651

    申请日:2009-07-14

    IPC分类号: G02B6/00 G02B6/02 G02B6/34

    CPC分类号: G02B6/02071

    摘要: A single helix chiral fiber grating of a predetermined grating strength is provided that is operable to control light transmission in a predetermined wavelength range. The novel fiber grating comprises a first optical fiber with a first interface portion at a first end, a second interface portion at a second end, and a middle portion therebetween. The first optical fiber is configured with at least one fiber core, surrounded by a corresponding at least one cladding, with a first longitudinal section disposed within the first interface portion, a second longitudinal section disposed within the second interface portion, and also includes a longitudinal helical section, disposed therebetween within the middle portion, that comprises a longitudinal helix structure of a single predetermined handedness, having a predetermined pitch profile, and having a predetermined helix diameter profile selected and configured to produce the predetermined grating strength. The helical section of the novel fiber grating is preferably produced by placing the first optical fiber, proximal to and parallel with a second fiber (or equivalent elongated member), and longitudinally twisting them together to form a double helix structure. Advantageously, the diameter of the second fiber (or a diameter profile thereof) may be selected to achieve the predetermined helix diameter profile in the helical section of the first fiber. The second fiber may be left proximal to the first fiber after fabrication or removed.

    摘要翻译: 提供具有预定光栅强度的单螺旋手性光纤光栅,其可操作以控制预定波长范围内的光透射。 新型光纤光栅包括第一光纤,第一光纤具有第一端部的第一接口部分,第二端部处的第二接口部分及其间的中间部分。 第一光纤配置有至少一个纤维芯,被相应的至少一个包层围绕,第一纵向部分设置在第一界面部分内,第二纵向部分设置在第二界面部分内,并且还包括纵向 螺旋部分,设置在中间部分之间,其包括具有预定螺距轮廓的单个预定螺纹度的纵向螺旋结构,并且具有预定的螺旋直径轮廓,其被选择并构造成产生预定的光栅强度。 新型光纤光栅的螺旋部分优选地通过将第一光纤放置在第二光纤(或等效的细长部件)上并与第二光纤(或相当的细长部件)平行)并将其纵向绞合在一起以形成双螺旋结构来制造。 有利地,可以选择第二纤维的直径(或其直径轮廓)以实现第一纤维的螺旋部分中的预定的螺旋直径轮廓。 在制造或移除之后,第二纤维可以靠近第一纤维。

    OPTICAL FIBER COUPLER ARRAY
    8.
    发明申请
    OPTICAL FIBER COUPLER ARRAY 审中-公开
    光纤耦合器阵列

    公开(公告)号:US20130121641A1

    公开(公告)日:2013-05-16

    申请号:US13692989

    申请日:2012-12-03

    IPC分类号: G02B6/26

    摘要: An optical fiber coupler array capable of providing multiple low loss, high coupling coefficient interfaces between a predetermined number of low numerical aperture optical fibers and an optical waveguide device with at least a corresponding number of waveguide interfaces. The novel coupler array includes a plurality of coupler inner cores and a plurality of corresponding coupler outer cores, within a medium surrounding each outer core, and also includes a first end for interfacing with optical fibers and a second end for interfacing with a plurality of waveguide interfaces of an optical waveguide device. The sizes of the inner and outer cores are gradually reduced from the first end to the second end in accordance with at least one predetermined reduction profile, such that the coupler array comprises a plurality of low numerical aperture waveguides at the first end, and a plurality of high numerical aperture waveguides at the second end.

    摘要翻译: 一种光纤耦合器阵列,其能够在预定数量的低数值孔径光纤和具有至少相应数量的波导接口的光波导器件之间提供多个低损耗,高耦合系数接口。 新型耦合器阵列包括多个耦合器内芯和多个对应的耦合器外芯,在围绕每个外芯的介质内,并且还包括用于与光纤连接的第一端和用于与多个波导接口的第二端 光波导器件的接口。 根据至少一个预定的减小轮廓,内芯和外芯的尺寸从第一端逐渐减小到第二端,使得耦合器阵列在第一端包括多个低数值孔径波导,并且多个 的高数值孔径波导在第二端。

    Optical fiber coupler array
    9.
    发明授权
    Optical fiber coupler array 有权
    光纤耦合器阵列

    公开(公告)号:US08326099B2

    公开(公告)日:2012-12-04

    申请号:US12502613

    申请日:2009-07-14

    IPC分类号: G02B6/26 G02B6/04

    摘要: An optical fiber coupler array capable of providing multiple low loss, high coupling coefficient interfaces between a predetermined number of low numerical aperture optical fibers and an optical waveguide device with at least a corresponding number of waveguide interfaces. The novel coupler array includes a plurality of coupler inner cores and a plurality of corresponding coupler outer cores, within a medium surrounding each plural outer core, and also includes a first end for interfacing with plural optical fibers and a second end for interfacing with a plurality of waveguide interfaces of an optical waveguide device. The sizes of the inner and outer cores are gradually reduced from the first end to the second end in accordance with at least one predetermined reduction profile. Various parameters, such as refractive indices and sizes of the inner and outer cores and the medium (as well as the reduction profile) are selected to produce a plurality of low numerical aperture waveguides at the first end, and a plurality of high numerical aperture waveguides at the second end, while advantageously minimizing insertion loss and maximizing the coupling coefficient at each end. Advantageously, the novel coupler array may be fabricated as an array of individually drawn couplers from multiple parallel fused performs (arranged in a row, or in another geometric cross section). Alternately, the novel coupler array may be fabricated from a single perform (glass or polymer) embedded with a plurality of parallel inner and outer core sets.

    摘要翻译: 一种光纤耦合器阵列,其能够在预定数量的低数值孔径光纤和具有至少相应数量的波导接口的光波导器件之间提供多个低损耗,高耦合系数接口。 新颖的耦合器阵列包括多个耦合器内芯和多个对应的耦合器外芯,在围绕每个多个外芯的介质中,并且还包括用于与多个光纤连接的第一端和用于与多个光纤连接的第二端 的光波导器件的波导接口。 根据至少一个预定的减小轮廓,内芯和外芯的尺寸从第一端逐渐减小到第二端。 选择各种参数,例如内芯和外芯和介质的折射率和尺寸(以及减小曲线)以在第一端产生多个低数值孔径波导,以及多个高数值孔径波导 在第二端,同时有利地使插入损耗最小化并且使每个端部处的耦合系数最大化。 有利的是,新的耦合器阵列可以由多个平行的熔合执行(以一排或另一个几何横截面排列)的单独拉制的耦合器的阵列制造。 替代地,新颖的耦合器阵列可以由嵌入有多个平行的内部和外部芯组的单个功能(玻璃或聚合物)制造。

    Chiral Fiber Apparatus and Method for Controllable Light Extraction from Optical Waveguides
    10.
    发明申请
    Chiral Fiber Apparatus and Method for Controllable Light Extraction from Optical Waveguides 审中-公开
    手动光纤装置及光波导可控光提取方法

    公开(公告)号:US20110292676A1

    公开(公告)日:2011-12-01

    申请号:US13149073

    申请日:2011-05-31

    IPC分类号: F21V8/00

    摘要: The system and method of the present invention advantageously enable controllable light extraction from optical fiber waveguides and offer highly configurable light signal guidance and control capabilities, as well as additional advantageous features associated with waveguides, by providing, in various exemplary embodiments thereof, a multitude of novel techniques by which the parameters relating to utilization of various light signals (such as direction of their emission, magnitude of the emission, physical surface area of the emission, etc.), can be readily controlled and configured as a matter of design choice. Additionally, the inventive system and method, in various exemplary embodiments thereof, also enable and facilitate selective configuration of, and/or control over, various characteristics of the light signals guided/controlled/extracted thereby, such as the signals' wavelength, polarization, intensity, amplitude, etc. To achieve the above-noted beneficial functions, the system and method of the present invention utilize a physical property of a standard, or a specialty, chiral optical fiber to scatter light signals entering the fiber in directions away from the fiber core (through the fiber cladding), to thereby advantageously enable selective and controllable extraction of light signals of a desired predetermined wavelength (or, optionally of a predetermined range of wavelengths) therefrom.

    摘要翻译: 本发明的系统和方法有利地实现了光纤波导的可控光提取,并提供了高度可配置的光信号引导和控制能力以及与波导相关联的附加的有利特征,通过在其各种示例性实施例中提供大量 作为设计选择,可以容易地控制和配置与各种光信号(例如其发射方向,发射的大小,发射的物理表面积等)有关的参数的新技术。 另外,在本发明的各种示例性实施例中,本发明的系统和方法还使得能够和促进由其引导/控制/提取的光信号的各种特性的选择性配置和/或控制,例如信号的波长,极化, 强度,幅度等。为了实现上述有益功能,本发明的系统和方法利用标准或特殊的手性光纤的物理特性来散射进入光纤的光信号,方向远离 纤维芯(通过光纤包层),从而有利地使得能够选择性和可控地提取从其所需的预定波长(或可选地,预定的波长范围)的光信号。