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1.发明公开Microlenses for coupling optical fibers to elliptical light beams 失效Mikrolinsenfürdie Kopplung von optischen Fasern und elliptischen Lichtstrahlen。
公开(公告)号：EP0558230A1
公开(公告)日：1993-09-01
申请号：EP93301125.6
申请日：1993-02-17
申请人： AT&T Corp.
CPC分类号： G02B6/2552 , G02B6/4203
摘要： An asymmetric hyperbolic microlens on the end of a single-mode optical fiber enhances the fiber's coupling to elliptical laser beams. The lenses, with controlled eccentricity ratios, are made by micromachining the end of the fiber with a pulsed CO₂ laser as the fiber is directed, preferably by computer control, about the focused laser beam. Coupling efficiencies of 90 percent (-0.75 dB) have been realized with single transverse mode lasers at a wavelength of 0.98 µm having an approximately 3 to 1 beam ellipticity. With multimode lasers at 1.48 µm having similar elliptical beams, the asymmetric lenses demonstrate an almost 2 dB increase in coupling efficiency over symmetric hyperbolic microlenses. Such lasers are useful to pump erbium-doped fiber amplifiers. About 120 mw was coupled from such a laser into single-mode fiber.
摘要翻译： 单模光纤末端的非对称双曲线微透镜增强了光纤与椭圆激光束的耦合。 具有受控偏心率的透镜通过用脉冲CO 2激光器微纤维加工光纤的端部，优选通过计算机控制关于聚焦激光束的光纤来制造。 使用具有大约3比1波束椭圆率的波长为0.98微米的单横模激光器实现了90％（-0.75dB）的耦合效率。 对于具有相似椭圆光束的1.48微米的多模激光器，非对称透镜显示出超过对称双曲线微透镜的耦合效率近2 dB的增加。 这种激光器可用于泵浦掺铒光纤放大器。 大约120 mw从这样的激光耦合到单模光纤。
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公开(公告)号：EP0202063A1
公开(公告)日：1986-11-20
申请号：EP86303405.4
申请日：1986-05-06
申请人： AT&T Corp.
IPC分类号： G02B6/28
CPC分类号： G02B6/2552 , G02B6/2804 , G02B6/2852
摘要： An access port assembly (10) for a main lightwave transmission fiber 16 is made by machining a notch (26) into it by carbon dioxide laser nibbling to form notch faces (28, 30) which extend into the core region (18). The end face (32) of a second, receiving fiber (12) is placed in contact with the notch faces (28) to optically couple it to the core (18) of the main fiber (16). An optical epoxy cement (34) holds the two members in position and matches the index of refraction. A third, transmitting fiber (14) is similarly connected to the main fiber (16) in a second notch and perpendicular to the receiving fiber (12).
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3.发明公开Apparatus and methods for interconnecting arrays of optical transmission paths 失效装置和方法用于光传输通道的阵列的连接
公开(公告)号：EP0721122A1
公开(公告)日：1996-07-10
申请号：EP95308513.1
申请日：1995-11-28
申请人： AT&T Corp.
CPC分类号： G02B6/30 , G02B6/3885 , G02B6/4249
摘要： A method of connecting arrays of optical wavepaths is described employing externally located connector pads (1-4,50). After optically aligning the arrays (51,52) to be connected, the connector pads are bonded (58) to the arrays and then to each other. In the preferred embodiments, the pads, which typically are thin silicon wafers, and the arrays are metalized and then soldered together. The use of connector pads to connect arrays of optical transmission paths results in sturdy, stable connections. The technique is fast, simple and inexpensive, and is consistent with current alignment procedures. By using solder to secure the pads to the arrays and to each other, connections can be undone and then redone. Inasmuch as all connections are external to the optical paths, there is no deterioration of the optical connections with time.
摘要翻译： 连接光学波径的阵列的制造方法进行说明用人位于外部的连接器焊盘（1至4.50）。 光学对准所述阵列（51,52）被连接后，连接器焊盘接合（58）连接到阵列，然后海誓山盟。 在优选的实施例中，垫，其通常是薄的硅晶片，并且阵列是金属化的，然后焊接在一起。 使用的连接器焊盘到的光传输路径的结果阵列连接在坚固的，稳定的连接。 该技术是快速，简单和廉价的，并且是与当前的调整步骤是一致的。 通过使用焊料与焊盘固定到所述阵列和海誓山盟，连接可以被撤消，然后重做。 因为所有的连接都是外部的光路，没有随时间的光学连接的劣化。
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公开(公告)号：EP0391598B1
公开(公告)日：1994-05-18
申请号：EP90303318.1
申请日：1990-03-28
申请人： AT&T Corp.
CPC分类号： G02B6/2552 , G02B6/4203
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公开(公告)号：EP0182555B1
公开(公告)日：1992-09-09
申请号：EP85308141.2
申请日：1985-11-08
申请人： AT&T Corp.
CPC分类号： G02B6/2852 , G02B6/14
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6.发明公开
公开(公告)号：EP0484011A2
公开(公告)日：1992-05-06
申请号：EP91309593.1
申请日：1991-10-17
申请人： AT&T Corp.
CPC分类号： G02B6/30 , G02B6/2804 , G02B6/2808
摘要： This invention is a new optical packaging and interconnection technology which is particularly effective in not only addressing the problem of attaching fiber pigtails to glass waveguide silicon devices, but also in isolating these waveguide devices from the deleterious effects of their external environment. A silica coverplate (310) is disposed over the device, including a number of waveguides consisting of cores (202) and cladding (203) forming part of the device. A layer (300) of epoxy is interposed between the coverplate and the waveguides. The refractive index of the epoxy (300) is less than or equal to that of the cladding (203). Thus, the epoxy forms an effective extension of the cladding and helps to confine optical radiation below the coverplate (310).
摘要翻译： 本发明是一种新的光学封装和互连技术，其特别有效的不仅在于解决将光纤尾纤连接到玻璃波导硅器件的问题，而且还将这些波导器件与其外部环境的有害影响隔离开来。 二氧化硅覆盖板（310）设置在该器件上方，包括由形成器件的一部分的芯（202）和覆层（203）组成的多个波导。 环氧树脂的一层（300）介于盖板和波导之间。 环氧树脂（300）的折射率小于或等于包层（203）的折射率。 因此，环氧树脂形成包层的有效延伸，并且有助于将光辐射限制在覆盖物（310）下方。
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7.发明公开Method and apparatus for fabricating an expanded beam cylindrically terminated optical fiber taper 失效用于生产柱形端接光纤具有扩展锥形束的方法和装置。
公开(公告)号：EP0303424A2
公开(公告)日：1989-02-15
申请号：EP88307300.9
申请日：1988-08-08
申请人： AT&T Corp.
CPC分类号： C03B37/0124 , C03B37/02736 , G02B6/2552 , G02B6/262
摘要： An apparatus and method are disclosed for fabricating an expanded beam cylindrically terminated optical fiber taper (36-38) from a reduced diameter preform rod (15). The present invention comprises mounting the reduced diameter preform rod in a first moving arrangement (11, 13, 16, 18, 19, 23) and a second moving arrangement (12, 14, 17, 25-29) and uniformly heating the circumference of a predetermined portion at an intermediate point of the preform rod with a heating arrangement (81) to a predetermined temperature, and then uniformly pulling the preform rod while continuing to heat additional material of the preform rod to produce a pair of expanded beam cylindrically terminated optical fiber tapers (37) connected by a predetermined length cylindrical central section of standard optical fiber (38) having a uniform diameter less than that of the original preform rod. The cylindrical central section is then severed midway between the two expanded beam optical fiber tapers to form two separate expanded beam cylindrically terminated optical fiber tapers comprised of (1) a predetermined length cylindrical end section of uniform diameter (36) equal to that of the original preform rod; (2) a reduced diameter optical fiber end section (38) suitable for splicing onto an optical fiber of similar dimensions; and (3) a tapered section (37), connecting the cylindrical end section to the optical fiber end section, having a gradually decreasing diameter that will avoid mode conversion of a lightwave signal propagating therethrough.
摘要翻译： 的装置和方法都是游离缺失盘用于从减小的直径预制棒（15）的制造在扩展光束圆柱形端接光纤锥（36-38）。 本发明包括安装在缩径预制棒在第一移动装置（11，13，16，18，19，23）和一个第二移动装置（12，14，17，25-29），并均匀地加热的周围 在在预制棒用的加热装置（81）的中间点的预定部分，以规定的温度，然后均匀拉预制棒，同时继续加热预制棒的附加材料以产生一对扩展光束的圆柱形端光学 通过标准光纤（38）的预定长度的圆柱形中心部分连接的光纤锥形（37），其具有均匀的直径小于原始预制棒。 圆柱形中心部分，然后在两个扩展光束光纤之间中途切断逐渐变细，以形成两个分开的扩束圆柱形端接光纤变细均匀直径（36）的（1）的预定长度的圆柱形端部的由等于做了原始的 预制棒; （2）直径减小的光纤端部（38）适合于拼接光纤走上类似尺寸的; 和（3）的锥形部分（37）连接的圆筒状端部的光纤端部，其直径逐渐减小一个光波信号通过传播那里的thatwill避免模式转换。
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8.发明公开Optical fiber to strip waveguide interconnect 失效Verbindung zwischen optischer Faser und Steigwellenleiter。
公开(公告)号：EP0558227A1
公开(公告)日：1993-09-01
申请号：EP93301119.9
申请日：1993-02-17
申请人： AT&T Corp.
IPC分类号： G02B6/30
CPC分类号： G02B6/30 , G02B6/2551
摘要： This invention is directed toward joining, with glass, a waveguide (34) supported by a substrate (26) to an optical fiber (40). In a preferred embodiment, a glass material which melts at a temperature that is lower than the temperature to which the waveguide can be safely heated is applied to either the optical fiber (40) and/or the waveguide (34). The glass material is then heated to cause it to connect the optical fiber to the waveguide. A feature of the invention is the presence of heat breaking slots (38) in the substrate (26) upon which the waveguide resides to thermally isolate the end of each waveguide and the underlying substrate from adjacent waveguides and the portions of the substrate which underlie said adjacent waveguides. The heat breaks restrict heat from being conducted along the end of the substrate from one waveguide region to adjacent waveguide regions when heat is being applied to make a connection.
摘要翻译： 本发明涉及通过玻璃将由衬底（26）支撑的波导（34）连接到光纤（40）。 在优选实施例中，在低于波导可以被安全加热的温度的温度下熔化的玻璃材料被施加到光纤（40）和/或波导（34）上。 然后将玻璃材料加热以使其将光纤连接到波导。 本发明的一个特征是在衬底（26）中存在散热槽（38），波导位于其上以使每个波导的端部和下面的衬底与相邻波导和基底的位于所述 相邻波导。 当施加热量以进行连接时，热断裂限制了从衬底端部从一个波导区域传导到相邻波导区域的热量。
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公开(公告)号：EP0484011A3
公开(公告)日：1993-03-10
申请号：EP91309593.1
申请日：1991-10-17
申请人： AT&T Corp.
CPC分类号： G02B6/30 , G02B6/2804 , G02B6/2808
摘要： This invention is a new optical packaging and interconnection technology which is particularly effective in not only addressing the problem of attaching fiber pigtails to glass waveguide silicon devices, but also in isolating these waveguide devices from the deleterious effects of their external environment. A silica coverplate (310) is disposed over the device, including a number of waveguides consisting of cores (202) and cladding (203) forming part of the device. A layer (300) of epoxy is interposed between the coverplate and the waveguides. The refractive index of the epoxy (300) is less than or equal to that of the cladding (203). Thus, the epoxy forms an effective extension of the cladding and helps to confine optical radiation below the coverplate (310).
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公开(公告)号：EP0182555A2
公开(公告)日：1986-05-28
申请号：EP85308141.2
申请日：1985-11-08
申请人： AT&T Corp.
CPC分类号： G02B6/2852 , G02B6/14
摘要： The present invention relates to a mode scrambling arrangement for a multimode or graded-index optical fiber and, more particularly, to an optical fiber mode scrambler achieved by forming a deformation (13) as, for example, a groove or notch on one side of the multimode or graded-index optical fiber (10, 11, 12) orthogonal to the longitudinal axis (14) thereof. The groove or notch can be produced by any suitable etching or machining process to extend through the cladding layer (11) and at least very slightly into the outer surface of the core (10) of the multimode or graded-index optical fiber. The depth of the groove or notch into the core can be controlled by monitoring the mode pattern in the multimode fiber during the etching or machining process to provide maximum mode scrambling with minimal loss.
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