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11. 发明授权

US5668901A Low reflectivity fiber bragg grating with rectangular reflection function 失效
标题翻译：具有矩形反射功能的低反射率光纤布拉格光栅
公开(公告)号：US5668901A
公开(公告)日：1997-09-16
申请号：US601201
申请日：1996-02-14
申请人： Donald B. Keck , Robert A. Modavis
发明人： Donald B. Keck , Robert A. Modavis
IPC分类号： G02B5/18 , G02B6/26 , G02B6/32 , G02B6/34 , G02B6/42 , G02B27/44
CPC分类号： G02B6/02085 , G02B6/02133
摘要： Fiber Bragg gratings of low reflectivity are given a squared reflectivity function in the form of a tophat configuration having a flat top and lacking undesirable side lobes. Such a reflectivity function for a fiber Bragg grating is achieved by interfering a diffracted beam with a plane wavefront beam so as to impose a sinc function on the resulting interference pattern that imprints the grating on an optical fiber.
摘要翻译：具有低反射率的光纤布拉格光栅具有平坦的反射功能，其形式为具有平坦顶部并且不具有不期望的旁瓣的波峰形式。通过用衍射光束与平面波前光束进行干涉来实现对光纤布拉格光栅的这种反射功能，以便在将光栅压印在光纤上的所得到的干涉图案上施加sinc函数。

12. 发明授权

US4704151A Method for drawing fiber optic coupler 失效
标题翻译：绘制光纤耦合器的方法
公开(公告)号：US4704151A
公开(公告)日：1987-11-03
申请号：US765653
申请日：1985-08-15
申请人： Donald B. Keck
发明人： Donald B. Keck
IPC分类号： G02B6/28 , C03B37/014 , C03B37/028 , C03B23/20 , C03B19/09 , C03B37/10
CPC分类号： C03B37/028 , C03B37/014
摘要： A low loss fiber optic coupler is fabricated by forming a coupler preform having a plurality of spaced glass cores extending longitudinally through a matrix of glass having a refractive index lower than that of the cores. The coupler preform is heated and stretched by first pulling means to form a glass rod which is drawn by second pulling means past an intermittant source of localized heat. When the localized heat source is turned on, the second pulling means draws the rod downwardly at a rate faster than the first pulling means. Since the rod is softened by the localized heat source, a necked-down coupling region is formed. The rod is severed to form a plurality of coupler units. When an end of a unit is immersed in acid, the matrix glass dissolves, thereby leaving the unit cores and surrounding etch-resistant cladding glass protruding from the newly formed endface of the unit.
摘要翻译：通过形成具有多个间隔开的玻璃核心的耦合器预制件来制造低损耗光纤耦合器，该玻璃核心纵向延伸穿过折射率低于芯子的折射率的玻璃矩阵。联接器预成型件通过第一拉动装置被加热和拉伸，以形成玻璃棒，该玻璃棒被第二牵引装置拉过经过局部热的间歇源。当局部热源接通时，第二牵引装置以比第一牵引装置更快的速度将杆向下拉。由于杆被局部热源软化，所以形成颈缩耦合区域。杆被切断以形成多个联接器单元。当单元的端部浸入酸中时，基体玻璃溶解，从而使单元芯和周围的耐蚀刻包层玻璃从单元的新形成的端面突出。

13. 发明授权

US4478489A Polarization retaining single-mode optical waveguide 失效
标题翻译：极化保持单模光波导
公开(公告)号：US4478489A
公开(公告)日：1984-10-23
申请号：US479490
申请日：1983-03-28
申请人： Michael G. Blankenship , Donald B. Keck
发明人： Michael G. Blankenship , Donald B. Keck
IPC分类号： C03B37/012 , C03B37/014 , C03B37/018 , G02B6/10 , G02B5/172
CPC分类号： G02B6/105 , C03B37/01217 , C03B37/014 , C03B37/018 , C03B2201/02 , C03B2201/10 , C03B2201/28 , C03B2201/31 , C03B2201/42 , C03B2203/31
摘要： A single mode optical waveguide is fabricated in a manner such that the core thereof is subjected to a stress-induced birefringence. This characteristic is accomplished by introducing into the cladding region of the fiber on opposite sides of the core longitudinally extending regions of glass having a thermal coefficient of expansion different from that of the remainder of the cladding. A number of novel techniques are disclosed for forming such a fiber.
摘要翻译：单模光波导以这样的方式制造，使得其芯受到应力诱导的双折射。该特性是通过将纤维纵向延伸的区域的纤维的相对两侧的纤维的包层区域引入热膨胀系数不同于包层的其余部分而实现的。公开了用于形成这种纤维的许多新技术。

14. 发明授权

US4415230A Polarization retaining single-mode optical waveguide 失效
标题翻译：极化保持单模光波导
公开(公告)号：US4415230A
公开(公告)日：1983-11-15
申请号：US248947
申请日：1981-03-30
申请人： Donald B. Keck
发明人： Donald B. Keck
IPC分类号： C03B37/012 , C03B37/014 , C03B37/018 , G02B6/024 , G02B6/10 , G02B5/172
CPC分类号： G02B6/105 , C03B37/01217 , C03B37/014 , C03B37/018 , C03B2201/02 , C03B2201/10 , C03B2201/28 , C03B2201/31 , C03B2201/42 , C03B2203/31
摘要： A single mode optical waveguide is constructed in a manner such that the core thereof is subjected to a stress-induced birefringence. The fiber comprises an oblong core surrounded by an oblong inner cladding layer. An outer layer of stress cladding glass, which has a circular outer surface, surrounds the inner cladding layer. The TCE of the stress cladding glass is different from that of the inner cladding glass.
摘要翻译：单模光波导以这样的方式构造，使得其芯受到应力引起的双折射。纤维包括由长方形内包层包围的长方形芯。具有圆形外表面的应力包层玻璃的外层包围内包层。应力包层玻璃的TCE与内包层玻璃的TCE不同。

15. 发明授权

US3934061A Method of forming planar optical waveguides 失效
标题翻译：形成平面光波导的方法
公开(公告)号：US3934061A
公开(公告)日：1976-01-20
申请号：US380482
申请日：1973-07-18
申请人： Donald B. Keck , Peter C. Schultz
发明人： Donald B. Keck , Peter C. Schultz
IPC分类号： B23K26/40 , C03B19/14 , C03B37/014 , C03C17/02 , C03C17/34 , C03C23/00 , G02B6/13 , C03C17/04 , G02B5/14
CPC分类号： G02B6/13 , C03B19/14 , C03B37/014 , C03C17/02 , C03C17/3417 , C03C23/0025
摘要： A method of producing a planar optical waveguide by applying to at least a portion of one flat surface of a substantially flat glass substrate having a predetermined desired index of refraction a first coating of glass having an index of refraction greater than that of said glass substrate. Thereafter a second coating of glass having an index of refraction less than that of the first coating of glass is applied over the exposed surface of the first coating of glass. The thickness of the first coating of glass being determined as a function of the highest mode order and the wavelength of light to be propagated within a waveguide having infinite width, and the indices of refraction of the substrate and each of the applied coatings.
摘要翻译：一种制造平面光波导的方法，该方法通过将具有预定折射率的基本平坦的玻璃基板的一个平坦表面的至少一部分施加到折射率大于所述玻璃基板的折射率的第一玻璃涂层。此后，在第一玻璃涂层的暴露表面上施加折射率小于第一涂层涂层的第二玻璃涂层。玻璃的第一涂层的厚度被确定为在具有无限宽度的波导内要传播的光的最高模式顺序和波长的函数，以及基底和每个涂覆的涂层的折射率。

16. 发明授权

US4501468A Integral optical imaging devices using grin lens systems 失效
标题翻译：使用咧嘴透镜系统的整体光学成像设备
公开(公告)号：US4501468A
公开(公告)日：1985-02-26
申请号：US520458
申请日：1983-08-04
申请人： Nicholas F. Borrelli , Donald B. Keck , David L. Morse , Paul A. Sachenik
发明人： Nicholas F. Borrelli , Donald B. Keck , David L. Morse , Paul A. Sachenik
IPC分类号： G02B27/18 , C03C23/00 , G02B3/00 , G02B5/17
CPC分类号： G02B3/0087 , C03C23/0095 , G02B3/0012 , G02B3/0056 , G02B3/0068
摘要： An integral optical imaging device is disclosed in which two or more porous glass bodies, embodying arrays of cylindrical gradient index lens systems, are rigidly maintained in a stacked relationship such that the lens systems are in register. This enhances the accumulative lens power and effective thickness of the device.
摘要翻译：公开了一种整体光学成像装置，其中体现圆柱形梯度折射率透镜系统的阵列的两个或多个多孔玻璃体被牢固地保持在堆叠关系中，使得透镜系统处于对准状态。这增强了设备的累积透镜功率和有效厚度。

17. 发明授权

US4436368A Multiple core optical waveguide for secure transmission 失效
标题翻译：用于安全传输的多芯光波导
公开(公告)号：US4436368A
公开(公告)日：1984-03-13
申请号：US288925
申请日：1981-07-31
申请人： Donald B. Keck
发明人： Donald B. Keck
IPC分类号： G02B6/44 , G02B5/172
CPC分类号： G02B6/02042 , G02B6/4469
摘要： A glass optical fiber has multiple cores and a cladding. The index of refraction of all cores is greater than the index of refraction of the cladding and the index of refraction of a first core is greater then the index of refraction of a second core. The change in the ratio of light loss from the first and second cores is detected to identify perturbations of the optical fiber before it reaches a level sufficient for a secure signal to be tapped.
摘要翻译：玻璃光纤具有多个芯和一个包层。所有芯的折射率大于包层的折射率，第一芯的折射率大于第二芯的折射率。检测来自第一和第二核心的光损失率的变化，以便在光纤达到达到要被攻击的安全信号足够的水平之前识别光纤的干扰。

18. 发明授权

US4395270A Method of fabricating a polarization retaining single-mode optical waveguide 失效
标题翻译：制造偏振保持单模光波导的方法
公开(公告)号：US4395270A
公开(公告)日：1983-07-26
申请号：US253224
申请日：1981-04-13
申请人： Michael G. Blankenship , Donald B. Keck
发明人： Michael G. Blankenship , Donald B. Keck
IPC分类号： C03B37/012 , C03B37/014 , C03B37/018 , G02B6/10 , C03B19/00 , C03B37/075
CPC分类号： C03B37/018 , C03B37/01217 , C03B37/014 , G02B6/024 , C03B2201/02 , C03B2201/10 , C03B2201/28 , C03B2201/31 , C03B2201/42 , C03B2203/31
摘要： A method of making a glass optical fiber having a core surrounded by cladding containing diametrically opposed regions of different TCE than the cladding. Three manufacturing techniques are disclosed. (1) A first glass rod having core and cladding glass is placed centrally in a glass tube. Rods of glass having a TCE different from that of the cladding glass are put on opposite sides of the first rod. Rods of cladding glass are placed in the interstices. (2) A soot preform is deposited on a rotating mandrel. In one embodiment, mandrel rotation is halted to deposit one longitudinally extending region and then rotated 180.degree. to deposit the other such region. In a modified embodiment the mandrel continuously rotates and the deposition burner is continuously supplied with reactant gas for forming a base glass and is also provided with pulses of a reactant gas for modifying the base glass to form the diametrically opposed regions. (3) A CVD process is modified by inserting a pair of tubes into the substrate tube when the longitudinally extending regions are to be deposited. There is passed between the first tube and the pair of tubes a gas which reacts to form particles of a base glass and there is passed through the pair of tubes another gas which reacts to form dopant glass particles which combine with base glass particles to form longitudinal strips of doped base glass within the tube.
摘要翻译：一种制造玻璃光纤的方法，其具有由包含不同TCE的直径相对的区域的包层包围的芯。公开了三种制造技术。（1）将具有芯和包层玻璃的第一玻璃棒放置在玻璃管中央。具有与包层玻璃不同的TCE的玻璃棒放在第一棒的相对侧上。包层玻璃棒放置在间隙中。（2）烟灰预制件沉积在旋转的心轴上。在一个实施例中，停止心轴旋转以沉积一个纵向延伸的区域，然后旋转180度以沉积另一个这样的区域。在改进的实施例中，心轴连续旋转，并且沉积燃烧器连续地供应有用于形成基础玻璃的反应气体，并且还具有用于改变基础玻璃以形成直径相对的区域的反应气体的脉冲。（3）当要沉积纵向延伸区域时，通过将一对管插入衬底管中来修饰CVD工艺。在第一管和一对管之间通过气体，其反应形成基础玻璃的颗粒，并且通过该对管另一气体，其反应形成掺杂剂玻璃颗粒，其与基础玻璃颗粒结合以形成纵向管内的掺杂基底玻璃条。

19. 发明授权

US4360371A Method of making polarization retaining single-mode optical waveguide 失效
标题翻译：制造偏振保持单模光波导的方法
公开(公告)号：US4360371A
公开(公告)日：1982-11-23
申请号：US249022
申请日：1981-03-30
申请人： Michael G. Blankenship , Donald B. Keck , Arnab Sarkar
发明人： Michael G. Blankenship , Donald B. Keck , Arnab Sarkar
IPC分类号： C03B37/012 , C03B37/014 , C03B37/018 , G02B6/10 , C03B19/00 , C03B37/075
CPC分类号： G02B6/105 , C03B37/01217 , C03B37/014 , C03B37/01486 , C03B37/018 , C03B37/01869 , C03B2201/02 , C03B2201/10 , C03B2201/28 , C03B2201/31 , C03B2201/42 , C03B2203/12 , C03B2203/302 , C03B2203/31
摘要： A single mode optical waveguide is fabricated in a manner such that the core thereof is subjected to a stress-induced birefringence. A hollow intermediate product is formed by depositing layers of cladding and core glass on the inner surface of a substrate tube. Opposite sides of the intermediate product are heated to cause it to collapse into a solid preform foreproduct having an oblong cross-section. A layer of flame hydrolysis-produced soot having a circular outer surface is deposited on the preform foreproduct and is consolidated to form a dense glass cladding layer thereon. The TCE of the outer cladding layer is different from that of the preform foreproduct on which it is deposited so that when the resultant preform is drawn into a fiber, a stress-induced birefringence exists in the core.
摘要翻译：单模光波导以这样的方式制造，使得其芯受到应力诱导的双折射。通过在衬底管的内表面上沉积包层和芯玻璃层形成中空的中间产物。加热中间产物的相对侧以使其塌陷成具有长方形横截面的固体预制件前体产品。将具有圆形外表面的火焰水解生成的烟灰层沉积在预成型件前体上并被固结以在其上形成致密的玻璃包覆层。外包层的TCE不同于其沉积的预制品前体产品的TCE，使得当将所得的预成型件拉制成纤维时，在芯中存在应力诱导的双折射。

20. 发明授权

US5579428A Solitons in dispersion flattened waveguide 失效
标题翻译：分散平坦波导中的孤子
公开(公告)号：US5579428A
公开(公告)日：1996-11-26
申请号：US482716
申请日：1995-06-07
申请人： Alan F. Evans , Donald B. Keck
发明人： Alan F. Evans , Donald B. Keck
IPC分类号： G02B6/036 , G02B6/28 , G02F1/365 , H04B10/17 , H04B10/18 , G02B6/18
CPC分类号： G02B6/02238 , G02B6/03644
摘要： A combination of dispersion flattened single mode optical waveguide fiber and soliton signal pulses yields an optimum telecommunication system capacity. The dispersion flattened fiber serves to relax tolerances on soliton center wavelength and intensity. In addition, the inventive combination facilitates the design and use of long haul systems using optical amplifiers.
摘要翻译：色散平坦单模光纤和孤子信号脉冲的组合产生最佳的电信系统容量。分散平坦纤维用于放松孤子中心波长和强度的公差。此外，本发明的组合有助于使用光放大器的长距离系统的设计和使用。

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