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1. 发明申请

US20100158438A1 Fiber Optic Diffraction Grating 审中-公开
$Fiber Optic Diffraction Grating$
标题翻译：光纤衍射光栅
公开(公告)号：US20100158438A1
公开(公告)日：2010-06-24
申请号：US12642498
申请日：2009-12-18
申请人： Victor Churikov , Victor Il'ich Kopp
发明人： Victor Churikov , Victor Il'ich Kopp
IPC分类号： G02B6/34
CPC分类号： G02B6/021 , G02B6/02357 , G02B6/02361 , G02B6/02376 , G02B2006/0209
摘要： The present invention is directed to an optical fiber grating having a core, that is capable of controlling the light signal transmission therethrough by causing at least one of: at least one spectral peak, and/or at least one spectral dip in its core light transmission spectrum, corresponding to at least one predetermined wavelength. The inventive optical fiber diffraction grating comprises at least one longitudinally positioned structural element of a predetermined geometric profile and that is configured for diffracting a portion of the transmitted light signal at at least one predefined wavelength thereof, from at least one core mode into at least one of: at least one cladding mode and/or at least one radiating mode. Various embodiments of a number of novel techniques for fabrication of the inventive optical fiber diffraction grating are provided, inclusive of a novel technique for fabricating the inventive grating from a single material. Advantageously, such novel fabrication techniques rely on configuration of a desired geometric profile for the at least one structural element portion of the novel grating, each profile comprising a number of readily configurable parameters that can be selected and/or adjusted during fabrication, to produce a variety of novel fiber diffraction gratings, each having a corresponding specific desirable core transmission spectrum having at least one of: least one spectral peak, and/or at least one spectral dip therein, corresponding to at least one specific desired wavelength, dependent on the configuration of the applicable geometric profile.
摘要翻译：本发明涉及一种具有芯的光纤光栅，该光纤光栅能够通过在其核心光透射中产生至少一个光谱峰值和/或至少一个光谱下降中的至少一个来控制光信号透射光谱，对应于至少一个预定波长。本发明的光纤衍射光栅包括具有预定几何轮廓的至少一个纵向定位的结构元件，并且被配置用于将至少一个预定波长的透射光信号的一部分从至少一个核心模式衍射到至少一个核心模式至少一个包层模式和/或至少一种辐射模式。提供了用于制造本发明的光纤衍射光栅的许多新技术的各种实施例，包括用于从单一材料制造本发明的光栅的新技术。有利地，这种新颖的制造技术依赖于新颖光栅的至少一个结构元件部分的期望几何轮廓的配置，每个轮廓包括可在制造期间选择和/或调整的许多容易配置的参数，以产生各种新颖的光纤衍射光栅各自具有对应于特定期望的核心透射光谱，其具有至少一个光谱峰值，和/或其至少一个光谱倾角，其对应于至少一个特定的期望波长，取决于配置的几何轮廓。

2. 发明申请

US20100008616A1 CHIRAL FIBER POLARIZER 有权
标题翻译：红外线偏光镜
公开(公告)号：US20100008616A1
公开(公告)日：2010-01-14
申请号：US12502717
申请日：2009-07-14
申请人： Victor Il'ich Kopp , Victor Churikov , Guoyin Zhang , Sheng Zhang , Jonathan Singer
发明人： Victor Il'ich Kopp , Victor Churikov , Guoyin Zhang , Sheng Zhang , Jonathan Singer
IPC分类号： G02F1/01
CPC分类号： G02B6/105 , G02B6/024 , G02B6/2726 , G02B2006/0209
摘要： An chiral optical fiber polarizer is provided that is capable of being fabricated in-line along a conventional polarization maintaining fiber, preferably one which includes at least one structure element that is external, and parallel, to the fiber's core. The novel chiral fiber polarizer is preferably positioned between two unmodified optical fiber portions, and includes a modified central portion with altered fiber cladding interface elements on each side thereof. The modified central portion is of a non-circular cross section, and comprises at least one diameter reduced sub-section operable to allow a light signal of said predefined operation wavelength to propagate substantially in the core and in the at least one external structure element, at least one diameter expanded sub-section operable to allow a light signal to propagate substantially in the core, each sub-section being produced in accordance with a corresponding predefined diameter reduction and expansion profile, where the modified central portion is further configured in accordance with at least one helical pitch profile that is operable to, upon receiving a light signal with a first and second linear polarization components: convert the first linear polarization component to a first elliptical polarization component while scattering the first elliptical polarization component, and convert the second linear polarization component to a second elliptical polarization component, transmit therethrough, and convert back to the second linear polarization component prior to exit therefrom. The inventive polarizer also substantially eliminates the possibility of an undesirable SBS effect.
摘要翻译：提供了一种手性光纤偏振器，其能够沿着常规的保偏光纤在线制造，优选包括至少一个外部并平行于纤维芯的结构元件。新型手性光纤偏振片优选位于两个未改性的光纤部分之间，并且包括在其每侧具有改变的光纤包覆界面元件的改性中心部分。改进的中心部分是非圆形横截面，并且包括至少一个直径减小的子部分，其可操作以允许所述预定义的操作波长的光信号基本上在芯部和至少一个外部结构元件中传播，至少一个直径扩大的子部分可操作以允许光信号基本上在芯中传播，每个子部分根据对应的预定义直径减小和扩张轮廓来生产，其中改进的中心部分进一步根据至少一个螺旋桨距轮廓，其可操作以在接收到具有第一和第二线性偏振分量的光信号时：将第一线性偏振分量转换为第一椭圆偏振分量同时散射第一椭圆偏振分量，并将第二线性偏振分量偏振分量转换为第二椭圆偏振分量并且在退出之前转换回第二线性偏振分量。本发明的偏振器也基本上消除了不期望的SBS效应的可能性。

3. 发明申请

US20100008627A1 DUAL TWIST SINGLE HELIX OPTICAL FIBER GRATING 失效
标题翻译：双螺旋单螺旋光纤光栅
公开(公告)号：US20100008627A1
公开(公告)日：2010-01-14
申请号：US12502651
申请日：2009-07-14
申请人： Victor II'ich Kopp , Jonathan Singer , Christopher Draper , Victor Churikov , Daniel Neugroschl
发明人： Victor II'ich Kopp , Jonathan Singer , Christopher Draper , Victor Churikov , Daniel Neugroschl
IPC分类号： 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个螺旋手性光纤光栅，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。

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