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公开(公告)号：US06256442B1
公开(公告)日：2001-07-03
申请号：US09392000
申请日：1999-09-08
IPC分类号： G02B610
CPC分类号： G02B6/12011 , G02B6/10 , G02B6/12007 , G02B6/12026 , G02B6/12028 , G02B6/125 , G02B2006/12159
摘要： An athermalized integrated optical waveguide device in which thermal spectral shifts are inhibited is provided and in which the light transmitting properties are insensitive to temperature variations and fluctuations. The athermnalized integrated optical waveguide device has at least two waveguide core arms, preferably comprised of a silica glass, with the core arms cladded with a waveguide cladding composition, preferably a silica glass that has a boron concentration different than the cores. The first waveguide arm and the second waveguide arm have a difference in an effective index thermal slope in order to provide an athermalized device such as an intereferometer on a substantially planar substrate. In addition the at least two waveguide core arms are comprised of path segments having different waveguide core dimensions.
摘要翻译： 提供其中抑制热光谱偏移的非热化集成光波导器件，其中透光性对温度变化和波动不敏感。 该无源集成光波导器件具有至少两个波导芯臂，优选由石英玻璃构成，芯臂包覆有波导覆层组合物，优选具有不同于芯的硼浓度的石英玻璃。 第一波导臂和第二波导臂在有效折射率热斜率上具有差异，以便在基本平坦的基板上提供诸如干涉仪之类的非热化器件。 此外，至少两个波导芯臂由具有不同波导芯尺寸的路径段组成。
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公开(公告)号：US5295210A
公开(公告)日：1994-03-15
申请号：US999296
申请日：1992-12-31
申请人： Daniel A. Nolan , David L. Weidman
发明人： Daniel A. Nolan , David L. Weidman
CPC分类号： G02B6/2835 , G02B6/2856
摘要： An achromatic fiber optic coupler of the type wherein three single-mode optical fibers are fused together along a portion of the lengths thereof to form a coupling region. Each fiber includes a core and a cladding, the lowest refractive index of the fiber claddings being n.sub.2. The fibers are disposed in a triangular array in the coupling region. A matrix glass body of refractive index n.sub.3 surrounds the coupling region, n.sub.3 being lower than n.sub.2 by such an amount that the value of .DELTA..sub.2-3 is less than 0.125%, wherein .DELTA..sub.2-3 equals (n.sub.2.sup.2' -n.sub.3.sup.2)/2n.sub.2.sup.2.
摘要翻译： 这种类型的消色差光纤耦合器，其中三个单模光纤沿其长度的一部分熔合在一起以形成耦合区域。 每个光纤包括芯和包层，光纤包层的最低折射率为n2。 纤维在耦合区域中以三角形阵列布置。 折射率为n3的矩阵玻璃体围绕耦合区域，n3低于n2，使得（Delta）2-3的值小于0.125％，其中（Delta）2-3等于（n22'- n32）/ 2n22。
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公开(公告)号：US4877300A
公开(公告)日：1989-10-31
申请号：US261270
申请日：1988-10-24
CPC分类号： G02B6/4202 , G02B6/262
摘要： Disclosed is a mode field modifier which can be used in a fiber-to-fiber connector or a source-to-fiber connector. In a downtaper-type mode field modifier embodiment, the modifier comprises a modifier core of refractive index n.sub.1 surrounded by first and second cladding layers having refractive indices n.sub.2 and n.sub.3, respectively. In an uptaper-type mode field modifier embodiment, the modifier comprises a modifier core of refractive index n.sub.1 surrounded by a cladding layer having a refractive index n.sub.2. The refractive indices are such that n.sub.1 >n.sub.2 >n.sub.3. In both embodiments, there is a nonadiabatic taper intermediate the ends of the mode field modifier, whereby a substantial amount of mode coupling occurs therein.
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公开(公告)号：US5339372A
公开(公告)日：1994-08-16
申请号：US75129
申请日：1993-06-09
CPC分类号： G02B6/2856
摘要： A low loss fiber optic coupler of the type wherein a plurality of single-mode optical fibers are fused together along a portion of the lengths thereof to form a coupling region. Each fiber includes a core and a cladding, the lowest refractive index of the fiber claddings being n.sub.2. Each of the output fibers of the coupler further includes a surface region of refractive index n.sub.4 that inhibits the coupling of light to lossy composite modes, n.sub.4 being lower than n.sub.2.
摘要翻译： 一种低损耗光纤耦合器，其中多个单模光纤沿其长度的一部分熔合在一起以形成耦合区域。 每个光纤包括芯和包层，光纤包层的最低折射率为n2。 耦合器的每个输出光纤还包括折射率为n4的表面区域，其阻止光耦合到有损复合模式，n4低于n2。
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公开(公告)号：US5418870A
公开(公告)日：1995-05-23
申请号：US234065
申请日：1994-04-28
IPC分类号： G02B6/122 , G02B6/26 , G02B6/28 , G02B6/34 , G02B6/42 , H01L31/173 , H04B10/12 , H04B10/13 , H04B10/135 , H04B10/14
CPC分类号： G02B6/4246 , G02B6/262 , G02B6/2835 , G02B6/4231 , H01L31/167 , G02B6/29332
摘要： The invention features an optical two-way transmission-receiver communications system utilizing a coaxial coupler having a ring waveguide and a core waveguide. A surface of an integrated source/ring detector substrate is positioned adjacent said coaxial coupler endface. A ring detector on the substrate, which receives light transmissions from the ring waveguide, has an annular opening therein. A light source disposed on the substrate within the annular opening in the ring detector directs light transmissions to the core waveguide of the coaxial coupler. An alignment device positions the substrate with respect to the coaxial coupler so that the light source and detector are respectively aligned with the coaxial coupler core and ring waveguides.
摘要翻译： 本发明的特征在于利用具有环形波导和核心波导的同轴耦合器的光学双向传输 - 接收机通信系统。 集成源/环检测器基板的表面位于所述同轴耦合器端面附近。 接收来自环形波导的光传输的基板上的环形探测器在其中具有环形开口。 设置在环形探测器中的环形开口内的衬底上的光源将光传输引导到同轴耦合器的芯波导。 对准装置将基板相对于同轴耦合器定位，使得光源和检测器分别与同轴耦合器芯和环形波导对准。
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公开(公告)号：US5412745A
公开(公告)日：1995-05-02
申请号：US238384
申请日：1994-05-05
CPC分类号： G02B6/2835 , G02B6/03633
摘要： A fiber optic coupler comprising a plurality of single-mode optical fibers, each of which is tapered to form a small diameter section that extends in contiguous relationship with the small diameter sections of the other fibers to form a coupling region. Each of the fibers has a core surrounded by a cladding of refractive index lower than that of the core. At least one of the fibers has a refractive index pedestal of refractive index n.sub.i between said core and cladding, wherein n.sub.1 >n.sub.i >n.sub.2, n.sub.1 and n.sub.2 being the refractive indices of the core and cladding, respectively.
摘要翻译： 一种光纤耦合器，包括多个单模光纤，每个单模光纤被锥形以形成与其它光纤的小直径部分相邻延伸的小直径部分，以形成耦合区域。 每个纤维具有由折射率低于芯的折射率的包层包围的芯。 所述纤维中的至少一个在所述芯和包层之间具有折射率为ni的折射率基座，其中n1，n2，n1和n2分别是芯和包层的折射率。
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公开(公告)号：US07254297B1
公开(公告)日：2007-08-07
申请号：US09203166
申请日：1998-12-01
申请人： George H. Beall , David L. Weidman
发明人： George H. Beall , David L. Weidman
IPC分类号： G02B6/26
CPC分类号： G02B6/0218
摘要： An athermal optical device and a method for producing the device, such as an athermal optical fiber reflective grating, are described. The athermal optical fiber reflective grating device comprises a negative expansion substrate, an optical fiber mounted on the substrate surface, and a grating defined in the optical fiber. The method for producing the athermal optical fiber reflective grating device comprises providing a negative expansion substrate, mounting an optical fiber with at least one reflective grating defined therein onto the substrate upper surface, and affixing the optical fiber to the substrate at at least two spaced apart locations.
摘要翻译： 描述了一种无热光学器件及其制造方法，如无热光纤反射光栅。 无热光纤反射光栅装置包括负扩展基板，安装在基板表面上的光纤和光纤中限定的光栅。 制造无光纤光纤反射光栅装置的方法包括提供负扩展基板，将其中限定有至少一个反射光栅的光纤安装在基板上表面上，并将光纤以至少两个间隔开的方式固定到基板 位置。
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公开(公告)号：US06640031B2
公开(公告)日：2003-10-28
申请号：US10171316
申请日：2002-06-12
申请人： Liang Dong , Gang Qi , David L. Weidman
发明人： Liang Dong , Gang Qi , David L. Weidman
IPC分类号： G02B634
CPC分类号： G02B6/02014 , G02B6/02023 , G02B6/02261 , G02B6/0228 , G02B6/03611 , G02B6/03644 , G02B6/0365 , G02B6/03672 , G02B6/14 , G02B6/29377
摘要： A dispersion compensating module, mode converter, coupler and dispersion compensated optical fiber therein. The dispersion compensating fiber has a plurality of core segments, the refractive index profile being selected to exhibit properties such that an LP02 mode at 1550 nm may be propagated a distance (generally 0.5-3.0 km), upon conversion to LP02, to compensate for dispersion of a length of transmission waveguide preferably greater than 25 km propagating in an LP01 mode. In another embodiment, the dispersion compensating module has a mode converter having a reflective fiber grating for converting a first to a second mode interconnected to a dispersion compensated fiber propagating in the second mode. The mode converter has a coupler adapted to operatively couple light propagating in a first mode from a first fiber into a second, and a reflective fiber grating operatively coupled to the second fiber; the grating being capable of converting light from the first into the second mode. According to another embodiment, an optical fiber coupler is provided having a first fiber with a first propagation constant in a first mode, and a second fiber within the coupler having a second propagation constant, the second fiber including a necked-down portion which is formed prior to fusion of the fibers, the necked-down portion being formed such that the local propagation constant of the second fiber substantially matches the first propagation constant thereby enhancing first mode coupling.
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9.发明授权公开(公告)号：US06483618B2
公开(公告)日：2002-11-19
申请号：US09450607
申请日：1999-11-30
IPC分类号： H04J1402
CPC分类号： G02B6/2932 , G02B6/29361 , G02B6/29383 , H04J14/02
摘要： A wavelength division demultiplexer includes a channel dropping component for receiving optical signals transmitted through a plurality of optical channels, defined by successively different light wavelength bands at intervals ranging between a first channel having the lowest wavelength band to a last channel having the highest wavelength band. The channel dropping component separates at least one channel having a wavelength band intermediate the lowest wavelength band and the highest wavelength band. The demultiplexer further includes an edge filter for separating optical signals received from the channel dropping component that have wavelengths below the intermediate wavelength band from optical signals having wavelengths above the intermediate wavelength band. The separated optical signals are transmitted from the edge filter in two different optical paths. The demultiplexer further includes a channel separator for separating optical signals transmitted in at least one of the optical paths from one another.
摘要翻译： 波分解复用器包括：信道丢弃分量，用于接收通过多个光信道发射的光信号，所述光信号由具有最低波长带的第一信道与具有最高波长带的最后一个信道之间的间隔的连续不同的光波长带限定。 信道丢弃组件分离具有在最低波长带和最高波长带之间的波长带的至少一个信道。 解复用器还包括边缘滤波器，用于从具有高于中间波长带的波长的光信号中分离出具有低于中间波长带的波长的信道丢弃分量接收的光信号。 分离的光信号从边缘滤波器以两个不同的光路传输。 解复用器还包括用于分离在至少一个光路中彼此传输的光信号的信道分离器。
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10.发明授权Coaxial optical fiber coupler transmitter-receiver apparatus and method of making same 失效同轴光纤耦合器发射机 - 接收装置及其制造方法
公开(公告)号：US5177803A
公开(公告)日：1993-01-05
申请号：US692493
申请日：1991-04-29
申请人： Mark A. Newhouse , David L. Weidman
发明人： Mark A. Newhouse , David L. Weidman
CPC分类号： G02B6/29352 , G02B6/2552 , G02B6/2835 , G02B6/29332 , G02B6/4203 , G02B6/4246
摘要： An optical two-way transmission-received communications system utilizing a coaxial coupler in place of a standard coupler, the optical system being capable of operation either in a single or multiple wavelength mode by designing the coupling region to have the proper length (i.e., either in 3dB or WDM operation), and further comprising a transmitter and a detector adjacent a coaxial coupler. The detector of the system is provided with a hole in its center in order to allow the transmitter access to the core waveguide of the coaxial coupler. The coaxial coupler may be formed from a rod in tube structure with a core waveguide extension adjacent the Tx/Rx and an integral pigtail on the opposite side of the coupler.
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