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1. 发明申请

WO1998021613A1 1XN AND NXN FIBER OPTIC COUPLERS 审中-公开
标题翻译： 1XN和NXN光纤耦合器
公开(公告)号：WO1998021613A1
公开(公告)日：1998-05-22
申请号：PCT/US1997020106
申请日：1997-11-05
申请人： E-TEK DYNAMICS, INC.
发明人： E-TEK DYNAMICS, INC. , PAN, Jing-Jong , SHIH, Ming , WU, Weiti , KO, Yu-Li , YU, Donna, S.
IPC分类号： G02B06/26
CPC分类号： G02B6/2856 , G02B6/3636 , G02B2006/2865
摘要： The present invention provides fiber optic couplers (20) for use with at least three optic fibers (10). The optic fibers (10) arranged in linear-array, that is, the optical fibers (10) are coupled side by side. The fibers (10) along either end of the linear-array are coupled only to a single fiber (10A), while the remaining fibers are generally coupled between only two adjacent fibers (10). Generally, at least one of the fibers (10) has a propagation constant different than the other fibers (10). Such variations in the propagation constant are used to vary the coupling coefficients among the fibers (10) of the linear-array, thereby providing a repeatable mechanism, to vary coupled power ratios among the fibers (10) of coupler (20). Theoretical calculations and empirical experience have shown that varying the propagation constant of fibers (10) among a linear-array, generally by pre-pulling the fibers (10) by varying amounts, allows repeatable manufacturing of 1x3, 3x3, 1x4, 4x4, 1xN and even NxN fiber couplers having even coupled power ratios.
摘要翻译：本发明提供了用于至少三个光纤（10）的光纤耦合器（20）。以线阵列布置的光纤（10），即光纤（10）并排耦合。沿着线性阵列的任一端的纤维（10）仅耦合到单个纤维（10A），而剩余的纤维通常仅在两个相邻的纤维（10）之间耦合。通常，纤维（10）中的至少一个具有与其它纤维（10）不同的传播常数。使用传播常数的这种变化来改变线阵列的光纤（10）之间的耦合系数，从而提供可重复的机构，以改变耦合器（20）的光纤（10）之间的耦合功率比。理论计算和经验经验表明，通常通过以不同的量预拉伸纤维（10），改变线性阵列中纤维（10）的传播常数允许重复制造1x3,3x3,1x4,4x4,1XN 甚至具有偶耦合功率比的NxN光纤耦合器。

2. 发明申请

WO1996019743A1 INTEGRABLE FIBEROPTIC COUPLER AND RESULTING DEVICES AND SYSTEMS 审中-公开
标题翻译：可整合的光纤耦合器和结构设备和系统
公开(公告)号：WO1996019743A1
公开(公告)日：1996-06-27
申请号：PCT/US1995016283
申请日：1995-12-14
申请人： E-TEK DYNAMICS, INC.
发明人： E-TEK DYNAMICS, INC. , PAN, Jing-Jong , SHIH, Ming , XU, Jingyu
IPC分类号： G02B06/12
CPC分类号： G02B6/2746 , G02B6/2848 , G02B6/29311 , G02B6/29362 , G02B6/2937 , G02B6/2938 , G02B6/327 , G02B6/4246 , H04J14/02 , Y10S372/703
摘要： A fiberoptic coupler capable of many functions is presented. The basic fiberoptic coupler has a first sleeve (33), a second sleeve (36), a first collimating GRIN (34) or conventional lens, and a second collimating lens (35) or conventional lens. The first sleeve (33) holds end sections of two or more input optical fibers (30, 31) along the longitudinal axis of the sleeve. The second sleeve (36) holds an end section of at least one output optical fiber (32). The end face of the second sleeve faces the first sleeve end face. The first collimating GRIN (34) or conventional lens in front of the first sleeve end face collimates light signals from the input optical fibers and the second collimating GRIN (35) or conventional lens in form of the second sleeve end face focusses light signals from at least one of the input optical fibers (30, 31) into the single output fiber (32), or at least one of the output optical fibers (32, 39). With only one output fiber the coupler operates as a combiner. If more than one output fiber is held by the second sleeve, the input and output fibers can be arranged so that a light signal from one input fiber is sent to one output fiber. For added functionality, optical elements, such as isolators and wavelength-dependent filters can be inserted between the first and second collimating lenses.
摘要翻译：提出了一种具有很多功能的光纤耦合器。基本光纤耦合器具有第一套筒（33），第二套筒（36），第一准直GRIN（34）或常规透镜，以及第二准直透镜（35）或常规透镜。第一套筒（33）沿着套筒的纵向轴线保持两个或更多个输入光纤（30,31）的端部。第二套筒（36）保持至少一根输出光纤（32）的端部。第二套筒的端面面向第一套筒端面。在第一套筒端面前面的第一准直GRIN（34）或常规透镜对来自输入光纤的光信号进行准直，并且第二准直GRIN（35）或第二套筒端面形式的常规透镜聚焦来自至少一个输入光纤（30,31）输入到单个输出光纤（32）中，或至少一个输出光纤（32,39）。只有一个输出光纤，耦合器作为组合器工作。如果多个输出光纤被第二套筒保持，则输入和输出光纤可被布置成使得来自一个输入光纤的光信号被发送到一个输出光纤。为了增加功能，可以在第一和第二准直透镜之间插入诸如隔离器和波长依赖滤光器之类的光学元件。

3. 发明申请

WO1994017436A1 AN OPTICAL DEVICE WITH LOW POLARIZATION MODE DISPERSION 审中-公开
标题翻译：具有低极化模式分布的光学器件
公开(公告)号：WO1994017436A1
公开(公告)日：1994-08-04
申请号：PCT/US1994000776
申请日：1994-01-18
申请人： E-TEK DYNAMICS, INC.
发明人： E-TEK DYNAMICS, INC. , PAN, Jing-Jong , SHIH, Ming
IPC分类号： G02F01/01
CPC分类号： G02F1/1335 , G02B5/3083 , G02B6/266 , G02B6/2746 , G02B6/278 , G02B6/4208 , G02F1/093 , G02F1/1326 , G02F2203/06 , G02F2203/48
摘要： The present invention provides for a compensating element in the form of a birefringent plate (20) in an optical isolator which uses a first GRIN lens to collimate the light signal from an input optical fiber, a first birefringent polarizer wedge (12), an optical Faraday rotator (13), a second birefringent polarizer wedge (14), and a second GRIN lens to recollimate the light signal to an output optical fiber. Polarization mode dispersion through said optical isolator is substantially reduced by arranging the fast optical axis of the plate (20) to be perpendicular to the fast optical axis of the polarizer (12) on the same side of the Faraday rotator (13) as the plate (20) and selecting the thickness (d) of the plate (20) in a predetermined manner. The present invention also allows for minimization of "walk-off", which also contributes to some polarization mode dispersion through the isolator.
摘要翻译：本发明提供了一种光隔离器中双折射板（20）形式的补偿元件，其使用第一GRIN透镜来校准来自输入光纤的光信号，第一双折射偏振片（12），光学法拉第旋转器（13），第二双折射偏振片（14）和第二GRIN透镜，用于将光信号重新聚光到输出光纤。通过将板（20）的快速光轴布置在垂直于法拉第转子（13）的同一侧的偏振片（12）的快速光轴上，通过所述光隔离器的极化模式色散大大降低，（20），并以预定的方式选择板（20）的厚度（d）。本发明还允许“走走”最小化，这也有助于通过隔离器的一些偏振模式色散。

4. 发明申请

WO1994017432A1 A POLARIZATION-INDEPENDENT OPTICAL SWITCH/ATTENUATOR 审中-公开
标题翻译：极化独立光开关/衰减器
公开(公告)号：WO1994017432A1
公开(公告)日：1994-08-04
申请号：PCT/US1994000665
申请日：1994-01-18
申请人： E-TEK DYNAMICS, INC.
发明人： E-TEK DYNAMICS, INC. , PAN, Jing-Jong
IPC分类号： G02B06/32
CPC分类号： G02F1/1335 , G02B5/3083 , G02B6/266 , G02B6/2746 , G02B6/278 , G02B6/4208 , G02F1/093 , G02F1/1326 , G02F2203/06 , G02F2203/48
摘要： An optical device which controls the strength of an optical signal from an input fiber (27) to an output fiber (28) responsive to a signal on a control terminal. The device has a first GRIN lens (21) associated with the input fiber (27), a first birefringent polarizer (22), a liquid crystal cell (20), a second birefringent polarizer (24) and a second GRIN lens (25) associated with the output fiber (28). The liquid crystal cell (20), located between the first (22) and second (24) polarizes and connected to a control terminal, controllably rotates the optical signal from the optical axis of the first polarizer toward the optical axis of the second polarizer responsive to the signal on said control terminal. The operation of the device is independent of the polarization of the optical signal in the input fiber. Furthermore, the device can be operated as an optical switch or an optical attenuator by suitably arranging the axes of the polarizers and liquid crystal cell.
摘要翻译：一种光学装置，其响应于控制终端上的信号来控制从信号光纤（27）到输出光纤（28）的光信号的强度。该装置具有与输入光纤（27），第一双折射偏振器（22），液晶单元（20），第二双折射偏振器（24）和第二GRIN透镜（25）相关联的第一GRIN透镜（21）与输出光纤（28）相关联。位于第一（22）和第二（24）之间的液晶单元（20）偏振并连接到控制端子，可控制地使光信号从第一偏振器的光轴朝向第二偏振器的光轴响应到所述控制终端上的信号。器件的操作与输入光纤中光信号的极化无关。此外，通过适当地布置偏振器和液晶单元的轴，该装置可以作为光开关或光衰减器来操作。

5. 发明申请

WO1997014064A1 COMPACT FIBEROPTIC CIRCULATOR WITH LOW POLARIZATION MODE DISPERSION 审中-公开
标题翻译：具有低极化模式分布的紧凑型光纤循环器
公开(公告)号：WO1997014064A1
公开(公告)日：1997-04-17
申请号：PCT/US1996016328
申请日：1996-10-10
申请人： E-TEK DYNAMICS, INC.
发明人： E-TEK DYNAMICS, INC. , PAN, Jing, Jong , HUANG, Yonglin
IPC分类号： G02B05/30
CPC分类号： G02B6/2746 , G02B5/3083 , G02B6/272 , G02B6/278 , G02B27/283 , G02F1/093
摘要： A compact optical circulator which can be expanded into a large number of optical ports is provided. For each port (1, 2, 3, 4), the circulator has an optical port assembly (10, 20, 30, 40) which has an end of an optical fiber (15, 25, 35, 45), a collimator subassembly (11, 21, 31, 41), and a birefringent crystal (12, 22, 32, 42). The collimator subassembly (11) collimates light from the optical fiber end (15) into a beam of collimated light and focusses a beam of collimated light to the optical fiber end (15) in a reverse direction. The birefringent crystal (12) is dimensioned and arranged with respect to the collimator subassembly (11) to split the collimated light beam from the collimator subassembly (11) into two parallel beams of light linearly polarized perpendicularly to each other, and to combine parallel beams of light linearly polarized perpendicularly to each other in the reverse direction into a beam of collimated light toward the collimator subassembly (11). The optical port assemblies (10, 20, 30, 40) are arranged in a linear array and a combination of polarization interfaces and planar relecting surfaces guide the light beams between the optical port assemblies (10, 20, 30, 40) so that the circulator can be designed with as many optical ports as desired.
摘要翻译：提供了可扩展成大量光端口的紧凑型光循环器。对于每个端口（1,2,3,4），循环器具有光端口组件（10,20,30,40），其具有光纤端部（15,25,35,45），准直器子组件（11,21,31,41）和双折射晶体（12,22,32,32）。准直器子组件（11）将来自光纤端部（15）的光准直成准直光束，并将准直光束以相反的方向聚焦到光纤端（15）。双折射晶体（12）相对于准直器子组件（11）的尺寸设置和布置，以将来自准直器子组件（11）的准直光束分成两个彼此垂直线偏振的平行光束，并且将平行光束在相反方向上垂直于彼此垂直偏振的光，朝向准直器子组件11的准直光束。光学端口组件（10,20,30,40）以线性阵列布置，并且偏振界面和平面反射表面的组合引导光学端口组件（10,20,30,40）之间的光束，使得循环器可以根据需要设计成具有尽可能多的光学端口。

6. 发明申请

WO1995023993A1 A MULTIELECTRODE, TUNABLE OPTICAL FILTER 审中-公开
标题翻译：多电容，可控光滤波器
公开(公告)号：WO1995023993A1
公开(公告)日：1995-09-08
申请号：PCT/US1995002687
申请日：1995-03-02
申请人： E-TEK DYNAMICS, INC.
发明人： E-TEK DYNAMICS, INC. , PAN, Jing-Jong , LIU, Zhimin , LI, Qing-Yu , HUANG, Yonglin
IPC分类号： G02B27/00
CPC分类号： G02B6/29395 , G01J3/26 , G02B6/29358
摘要： A tunable optical filter of the Fabry-Perot interferometry type is provided. The filter has a pair of mirrors (12, 13) with reflecting flat faces facing and substantially parallel to each other. A tubular piezoelectric transducer (20) with a longitudinal axis (24) perpendicular to the mirror faces has an end attached to one of said mirrors (12, 13). A first electrode (22) is attached to the inner or outer surface of the piezoelectric transducer (20) and at least three, preferably four, second electrodes (23) are attached to the other surface of the transducer (2) so that the piezoelectric transducer (20) is located between the first electrode (22) and the second electrodes (23). Each second electrode (23) extends parallel to the longitudinal axis (24) and is spaced apart from each other in a plane perpendicular to the longitudinal axis (24). The faces of the first and second mirrors (12, 13) may be moved with respect to each other to maintain the mirror faces parallel to each other and to tune the filter by voltage signals.
摘要翻译：提供了法布里 - 珀罗干涉仪类型的可调谐滤光器。过滤器具有一对反射镜（12,13），反射平面相对于彼此基本平行。具有垂直于镜面的纵向轴线（24）的管状压电换能器（20）具有连接到所述反射镜（12,13）中的一个的端部。第一电极（22）附接到压电换能器（20）的内表面或外表面，并且至少三个，优选四个第二电极（23）附接到换能器（2）的另一个表面，使得压电换能器（20）位于第一电极（22）和第二电极（23）之间。每个第二电极（23）平行于纵向轴线（24）延伸并且在垂直于纵向轴线（24）的平面中彼此间隔开。第一和第二反射镜（12,13）的表面可以相对于彼此移动，以保持镜面彼此平行并通过电压信号来调谐滤光器。

7. 发明申请

WO1993009455A1 AN IMPROVED OPTICAL ISOLATOR 审中-公开
标题翻译：改进的光学隔离器
公开(公告)号：WO1993009455A1
公开(公告)日：1993-05-13
申请号：PCT/US1992009085
申请日：1992-10-27
申请人： E-TEK DYNAMICS, INC.
发明人： E-TEK DYNAMICS, INC. , PAN, Jing-Jong
IPC分类号： G02B06/32
CPC分类号： G02B6/2746 , G02B6/32 , G02B6/3822 , G02B6/4208 , G02F1/093 , G02F2202/20
摘要： An improved optical isolator of the type having an input optical fiber (17), a first GRIN lens (11), a first polarizer (12), an optical rotator (13), a second polarizer (14), a second GRIN lens (15) and an output optical fiber (18). Lithium niobate birefringent crystals are used for lowered costs and high performance. Improvements also include polishing the end of the input optical fiber at a slant and covering the end with a window coated with antireflection material. The surface of the GRIN lens (11) facing the end of the input optical fiber (17) is slant-polished reciprocally and spaced apart with gap which avoids Fabry-Perot interference.

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