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公开(公告)号：US4494968A
公开(公告)日：1985-01-22
申请号：US538325
申请日：1983-10-03
IPC分类号： C03B37/012 , C03B19/14 , C03B37/014 , C03B37/018 , G02B6/00 , C03B37/075 , G02B5/172
CPC分类号： C03B37/01493 , C03B19/14 , C03B37/014 , C03B2203/10 , C03B2203/22 , C03B2203/30
摘要： A process for manufacturing a preform from which is drawn an optical fiber, the core of which comprises layers of different glass composition. Layers of glass, adjacent ones of which have different composition, are deposited on a substrate. A process is preferred whereby layers of glass soot are deposited. The soot is consolidated and the resultant laminated glass structure is severed to form an elongated azimuthally asymmetric laminated core structure. A layer of cladding glass is added to the core structure, and the resultant preform is drawn into an optical fiber.
摘要翻译： 一种用于制造预成型件的方法，其中拉出了一种光纤，其芯部包括不同玻璃组成的层。 玻璃层，其相邻的具有不同组成的玻璃层沉积在基底上。 优选沉积玻璃烟炱层的方法。 将烟灰固结并将所得到的夹层玻璃结构切断以形成细长的方位不对称层压芯结构。 将一层包层玻璃添加到芯结构中，并将所得预成型件拉制成光纤。
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32.发明授权Spectrally-shaped optical components using a wavelength-dispersive element and a reflective array 失效使用波长分散元件和反射阵列的光谱形状的光学部件公开(公告)号：US06571034B2
公开(公告)日：2003-05-27
申请号：US09894586
申请日：2001-06-28
IPC分类号： G02B626
CPC分类号： G02B6/12021 , G02B6/12014 , G02B6/3512 , G02B6/3532 , G02B6/356 , G02B6/3594 , G02B2006/12164
摘要： The present invention features an optical component based on a wavelength-dispersive element in conjunction with reflective elements to provide wavelength-sensitive control multi-wavelength light signals such as wavelength division multiplexed (WDM) light signals. Both static reflective elements and movable (dynamic) reflective elements are described. Optical devices such as gain-flattening filters and dynamically configurable wavelength selective routers with built-in gain flattening filters are described.
摘要翻译： 本发明的特征在于基于与反射元件结合的波长分散元件的光学部件，以提供诸如波分复用（WDM）光信号的波长敏感的控制多波长光信号。 描述了静态反射元件和可动（动态）反射元件。 描述了诸如增益平坦滤波器和具有内置增益平坦化滤波器的动态可配置波长选择性路由器的光学装置。
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33.发明授权公开(公告)号：US06404964B1
公开(公告)日：2002-06-11
申请号：US09674416
申请日：2000-10-30
IPC分类号： G02B616
CPC分类号： G02B6/29374 , G02B6/03627 , G02B6/03644 , G02B6/03694 , G02B6/29377 , G02B6/29394 , H04B10/25253
摘要： A unitary dispersion managed waveguide fiber with distributed amplification and a system incorporating the waveguide fiber are disclosed. Total dispersion along the waveguide fiber changes from positive to negative along the length of the waveguide over a transmission wavelength range. Distributed amplification is provided by stimulated emission of a dilute concentration of a rare earth dopant in the waveguide, by Raman effects or by both.
摘要翻译： 公开了具有分布式放大的单一色散管理波导光纤和包含波导光纤的系统。 沿着波导的总色散沿着波导的长度在传输波长范围内从正向变化到负。 通过拉曼效应或两者在波导管中稀释稀土掺杂剂的浓度的受激发射来提供分布式放大。
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34.发明授权
公开(公告)号：US6137456A
公开(公告)日：2000-10-24
申请号：US243328
申请日：1999-02-03
CPC分类号： H04N13/0409 , H04N13/0404 , H04N13/0456
摘要： A flat screen autostereoscopic display for bright wide angle stereoscopic images employs a flat screen on which are displayed a light pattern such as a plurality of regularly spaced, thin, vertical light emitting lines. The light lines are formed through use of electrically switchable materials such as liquid crystal or electrochromic materials. A transmissive electronic display, e.g., a liquid crystal display, is located in front of the light lines. The display and light lines are arranged in such a way that an observer sees the light emitting lines through one set of pixels with the left eye and the same lines through a different set of pixels through the right eye. Methods and apparatus for the simultaneous formation of a two-dimensional image and a three-dimensional image on such a transmissive electronic display, and for moving or dragging the display area of the three-dimensional image from one location to another on said display, are also disclosed.
摘要翻译： 用于明亮的广角立体图像的平面屏幕自动立体显示器使用平面屏幕，其上显示诸如多个规则间隔的薄的垂直发光线之类的光图案。 光线通过使用电可切换材料如液晶或电致变色材料形成。 透光电子显示器，例如液晶显示器，位于光线前面。 显示器和光线被布置成使得观察者通过穿过右眼的不同像素集合通过具有左眼和相同线的一组像素观察发光线。 在这种透射电子显示器上同时形成二维图像和三维图像，并且用于在所述显示器上将三维图像的显示区域从一个位置移动或拖动到另一个位置的方法和装置是 也披露。
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公开(公告)号：US5867616A
公开(公告)日：1999-02-02
申请号：US513260
申请日：1995-08-10
申请人： A. Joseph Antos , Venkata A. Bhagavatula , William J. Cherenak , Dipakbin Q. Chowdhury , Daniel A. Nolan
发明人： A. Joseph Antos , Venkata A. Bhagavatula , William J. Cherenak , Dipakbin Q. Chowdhury , Daniel A. Nolan
IPC分类号： G02B6/024 , C03B37/012 , C03B37/014 , G02B6/02 , G02B6/028 , G02B6/10 , G02B6/00
CPC分类号： G02B6/02285 , C03B37/01205 , C03B37/01493 , G02B6/105 , C03B2203/18 , C03B2203/20 , C03B2203/24 , C03B2203/30 , C03B2203/32 , C03B2203/36 , G02B2006/0209
摘要： A single mode optical waveguide having reduced polarization mode dispersion and a method for making such a waveguide is disclosed. Perturbations are introduced into the waveguide core to couple power between the two polarization modes. A model calculation shows that the perturbation length may be of the order of the correlation length. The inventive waveguide is robust in that polarization mode dispersion is reduced even if perturbations are impressed on the fiber after manufacture.
摘要翻译： 公开了具有降低的偏振模色散的单模光波导和制造这种波导的方法。 扰动被引入到波导芯中以在两个偏振模式之间耦合功率。 模型计算表明扰动长度可以是相关长度的数量级。 本发明的波导是鲁棒的，因为即使在制造之后在光纤上施加扰动，偏振模色散也被减小。
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36.发明授权
公开(公告)号：US5768450A
公开(公告)日：1998-06-16
申请号：US586134
申请日：1996-01-11
CPC分类号： G02B6/12011 , G02B6/12014
摘要： Wavelength dispersion in an optical demultiplexer is accomplished by varying propagation constants of a central pathway traverse to the direction of wavefront propagation through the central pathway. The propagation constant can be varied by changing the dimensions or refractive qualities of the central pathway, which can be formed as a common waveguide or as a plurality of individual waveguides.
摘要翻译： 光解复用器中的波长色散通过改变穿过中心通道的波前传播方向的中心路径的传播常数来实现。 传播常数可以通过改变中心路径的尺寸或折射质量来改变，中心路径可以形成为公共波导或多个独立的波导。
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公开(公告)号：US5613028A
公开(公告)日：1997-03-18
申请号：US513654
申请日：1995-08-10
CPC分类号： G02B6/02247 , C03B37/01205 , G02B6/02285 , G02B6/105 , C03B2203/18 , C03B2203/20 , C03B2203/24 , C03B2203/36 , G02B6/02066
摘要： Disclosed is a single mode optical waveguide fiber having periodic perturbations in the core to provide a birefringence which mixes the polarization modes of launched light. In addition, perturbations are introduced into the core which serve to manage total dispersion. The total dispersion of pre-selected segments of the waveguide are caused to change sign so that the sum of products, total dispersion times length, algebraically add to a pre-selected value. The two distinct core perturbation types serve to control both polarization mode dispersion and total dispersion. Methods for making the subject waveguide are also discussed.
摘要翻译： 公开了一种在芯中具有周期性扰动以提供混合发射光的偏振模式的双折射的单模光纤。 此外，扰动引入核心，用于管理总分散。 导致波导的预先选择的段的总色散改变符号，使得乘积的总和，总色散乘以时间长度，代数地增加到预先选择的值。 两种不同的核心扰动类型用于控制偏振模色散和总色散。 还讨论了制造对象波导的方法。
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公开(公告)号：US5253319A
公开(公告)日：1993-10-12
申请号：US840749
申请日：1992-02-24
CPC分类号： G02B6/122 , G02B6/2808 , G02B6/2817
摘要： A planar optical waveguide comprises a substrate 1, a waveguide core layer 2, at least one planar optical element, wherein said planar optical element comprises at least one optically functional interface 3 which is adjacent to a cavity 4, and an overclad layer 5. The cavity enhances the optical characteristics of the planar optical element because of the substantial difference in the refractive index of the cavity as compared to the refractive index of said waveguide core layer.
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公开(公告)号：US5125946A
公开(公告)日：1992-06-30
申请号：US625153
申请日：1990-12-10
CPC分类号： G02B6/13
摘要： A metehod of manufacturing planar optical waveguides in which a planar optical preform which is stretched to form a planar optical cane with substantially smaller cross-sectional dimensions than the original preform, and in which the optical circuitry pattern is achieved by lithographic techniques. Optical fiber preforms may be inserted in slots in a substrate to form the planar optical preform.
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公开(公告)号：US4804248A
公开(公告)日：1989-02-14
申请号：US945021
申请日：1986-12-22
CPC分类号： H04B10/2581
摘要： A single-mode transmission optical fiber may have a bandwidth much greater than that necessary to transmit a desired predetermined maximum data rate. The single-mode fiber is connected to a bandwidth limiting device comprising the serial combination of an input optical fiber, a mode converter and multimode fiber. If the multimode fiber is capable of propagating two modes, for example, the mode converter converts the LP01 signal from the transmission fiber to the LP01 and LP11 modes. These two modes propagate at different speeds through the multimode fiber. Means connected to the output end of the multimode fiber detects the two modes. If the time delay difference .DELTA.t between the two modes is small with respect to the width of a pulse in the transmitted pulse train, the pulse train will be detected without distortion. Transmission at a higher data rate causes .DELTA.t to be large with respect to pulse width. Thus, a transmitted pulse causes the generation of a false pulse, whereby operation at the higher data rate is impossible. Also disclosed are methods of making suitable mode converters.
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