公开(公告)号：US5799121A

公开(公告)日：1998-08-25

申请号：US800061

申请日：1997-02-14

Applicant: Gary S. Duck ,  Yihao Cheng

Inventor： Gary S. Duck ,  Yihao Cheng

IPC: G02B13/00 ,  G02B3/00 ,  G02B6/34 ,  G02B27/10 ,  G02B6/26 ,  G02B6/32

CPC classification number: G02B6/2937

Abstract: An optical device is provided having an input and an output terminal spaced equidistant from an optical axis of a graded index lens. An at least partially reflective surface is disposed spaced but adjacent from another end face of the graded index lens. The optical path length from the input or output terminal to a first end face of the lens is equal to the optical path length from the other end face of the lens to the at least partially reflective surface. The graded index lens has a length that collimates light launched from the input terminal to the at least partially reflective surface. Moving the input an output terminals toward or away from one another changes the angle at which light exits the other end face of the graded index lens, and thus changes the angle at which light is incident upon the at least partially reflecting surface. Conveniently, if the at least partially reflecting surface is a WDM interference filter, tunability of the filter is achieved by moving the input an output terminals toward or away from one another.

Abstract translation: 提供了具有与渐变折射率透镜的光轴等距离的输入和输出端子的光学装置。 至少部分反射的表面设置成间隔开，但与渐变折射率透镜的另一个端面相邻。 从透镜的输入或输出端子到第一端面的光路长度等于从透镜的另一个端面到至少部分反射表面的光路长度。 渐变折射率透镜具有将从输入端子发射的光准直到至少部分反射表面的长度。 将输入端朝向或远离移动输入端改变了光从渐变折射率透镜的另一端面离开的角度，从而改变光入射到至少部分反射表面上的角度。 方便地，如果至少部分反射表面是WDM干涉滤光器，则通过使输入端彼此朝向或远离移动来实现滤波器的可调性。

公开(公告)号：US5745626A

公开(公告)日：1998-04-28

申请号：US666228

申请日：1996-06-20

Applicant: Gary Stephen Duck ,  Neil Teitelbaum ,  Yihao Cheng

Inventor： Gary Stephen Duck ,  Neil Teitelbaum ,  Yihao Cheng

IPC: G02B6/38 ,  G02B6/42

CPC classification number: G02B6/4248 ,  G02B6/3803 ,  G02B6/3855

Abstract: A method and device is provided wherein a reinforcement is provided for one or more optical fibers. One or more fibers are inserted into a sleeve made of a material that is substantially the same as the material of the cladding of the one or more optical fibers. The bore of the sleeve is sized to accommodate the one or more optical fibers; After the one or more optical fibers is inserted into the sleeve sufficient heat is applied to the sleeve for a duration to collapse the sleeve onto the one or more optical fibers. Preferably, the sleeve is a glass pre-form consisting substantially of 90% or greater silica.

Abstract translation: 提供了一种方法和装置，其中为一个或多个光纤提供加强件。 将一根或多根纤维插入由与一根或多根光纤的包层的材料基本上相同的材料制成的套筒中。 套筒的孔尺寸适于容纳一根或多根光纤; 在将一根或多根光纤插入套筒中之后，足够的热量施加到套筒上一段时间以将套管折叠到一根或多根光纤上。 优选地，套筒是基本上由90％或更大的二氧化硅组成的玻璃预成型件。

公开(公告)号：US5471340A

公开(公告)日：1995-11-28

申请号：US178838

申请日：1994-01-07

Applicant: Yihao Cheng ,  Gary S. Duck

Inventor： Yihao Cheng ,  Gary S. Duck

IPC: G02B27/28 ,  G02F1/09 ,  G02B5/30 ,  G02F1/095

CPC classification number: G02B27/283 ,  G02F1/093

Abstract: In order to reduce the number of components and avoid relatively long optical lengths, a non-reciprocal device such as a circulator comprises a plurality of ports at one end of the device, a mirror at an opposite end of the device, and a series of optical elements disposed between the ports and the mirror. The optical elements include a first element which spatially separates first and second orthogonally-polarized components of a light beam leaving one of said plurality of ports and passing through the device in a forward direction, and recombines the first and second components as they pass through the device in a reverse direction after reflection. A second optical element, disposed between the separating and recombining element and the mirror, selectively displaces and rotates the light beam components such that the recombined light beam is coupled to a different one of the plurality of ports.

Abstract translation: 为了减少部件的数量并避免相对长的光学长度，诸如循环器的不可逆设备包括在设备的一端的多个端口，在设备的相对端的反射镜，以及一系列 设置在端口和反射镜之间的光学元件。 光学元件包括第一元件，其空间上分离出离开所述多个端口中的一个的光束的第一和第二正交极化分量并沿正向方向穿过该器件，并且当第一和第二元件通过 器件反射后反方向。 设置在分离元件和复合元件与反射镜之间的第二光学元件选择性地移动和旋转光束分量，使得复合光束耦合到多个端口中的不同端口。

公开(公告)号：US06819872B2

公开(公告)日：2004-11-16

申请号：US10431752

申请日：2003-05-08

Applicant: Mark Farries ,  Yihao Cheng ,  Timothy C. Munks ,  Paul E. Dunn ,  Andrew Finch

Inventor： Mark Farries ,  Yihao Cheng ,  Timothy C. Munks ,  Paul E. Dunn ,  Andrew Finch

IPC: H04J1408

CPC classification number: H04J14/06 ,  G02B6/2861 ,  H04J14/08

Abstract: A micro-optical delay element for a time-division multiplexing scheme is disclosed wherein two light beams are provided to a beam splitter/combiner (BS/C) in the absence of optical fibre. At least one beam exiting a modulator is collimated and reaches the (BS/C) unguided as a substantially collimated beam. This obviates a requirement for polarization controllers and polarization maintaining optical fiber

Abstract translation: 公开了一种用于时分复用方案的微光延迟元件，其中在没有光纤的情况下将两个光束提供给分束器/组合器（BS / C）。 离开调制器的至少一个光束被准直并且到达（BS / C）无引导为基本准直的光束。 这消除了偏振控制器和偏振保持光纤的要求

公开(公告)号：US06498676B1

公开(公告)日：2002-12-24

申请号：US09309489

申请日：1999-05-11

Applicant: Donald R. Zimmerman ,  Yihao Cheng

Inventor： Donald R. Zimmerman ,  Yihao Cheng

IPC: G02B626

CPC classification number: H04B10/2912 ,  G02B5/284 ,  G02B6/29364 ,  G02B6/2937 ,  G02B6/29395 ,  H01S3/10023 ,  H01S3/1608 ,  H01S2301/04 ,  H04B10/2941

Abstract: This invention relates to invention relates to a method for filtering and a variable slope optical filter for in-line use with an optical amplifier signal. The filter has a wavelength response that is substantially linear in slope within a band of operation wavelengths of the amplifier; the slope of the filter in an operating band of wavelengths is between zero and a only one of a positive or negative number; furthermore the filter has an amplitude response that has an opposite and counter slope as a function of wavelength to that of a gain tilt of the amplifier within the operation band of wavelengths. Relative movement between the filter and the optical amplifier signal is provided to vary the slope of the filter by means of varying the amplitude wavelength response of the filter.

Abstract translation: 本发明涉及一种用于滤波的方法和一种用于与光放大器信号一起使用的可变斜率滤光器。 滤波器具有波长响应，其在放大器的工作波长范围内的斜率基本上是线性的; 波长工作频带中的滤波器的斜率在零和仅为正数或负数之间; 此外，滤波器具有幅度响应，其具有与波长的操作频带内的放大器的增益倾斜的波长相对的和相反的斜率。 提供滤波器和光放大器信号之间的相对运动，以通过改变滤波器的振幅波长响应来改变滤波器的斜率。

公开(公告)号：US06438291B1

公开(公告)日：2002-08-20

申请号：US09204147

申请日：1998-12-03

Applicant: Gary Duck ,  Yihao Cheng ,  Jan Ingenhoff ,  Norbert Fabricius

Inventor： Gary Duck ,  Yihao Cheng ,  Jan Ingenhoff ,  Norbert Fabricius

IPC: G02B632

CPC classification number: G02B6/2937 ,  G02B6/125 ,  G02B6/2804 ,  G02B6/2938 ,  G02B6/30

Abstract: An optical system for coupling light from a monolithic waveguide chip from one optical path to another on different layers of the chip or into or out of the chip along an edge thereof by coupling a GRIN lens to the edge. Coupling a GRIN lens having a reflective end allows light to be launched out of and back into the waveguide chip. Alternatively a GRIN lens having a plurality of fibers coupled thereto can be used to couple signals carried by the fibers into the waveguide chip.

Abstract translation: 一种光学系统，用于将来自单片波导芯片的光从芯片的不同层上的一个光路到另一个光路，或者通过将GRIN透镜耦合到边缘，沿着其边缘进入或离开芯片。 耦合具有反射端的GRIN透镜允许光发射出波导芯片并返回到波导芯片中。 或者，可以使用具有耦合到其上的多个光纤的GRIN透镜来将由光纤携带的信号耦合到波导芯片中。

公开(公告)号：US06393179B1

公开(公告)日：2002-05-21

申请号：US09369343

申请日：1999-08-06

Applicant: Yihao Cheng ,  Gary S. Duck

Inventor： Yihao Cheng ,  Gary S. Duck

IPC: G02B632

CPC classification number: G02B6/2746 ,  G02B6/2848 ,  G02B6/2937 ,  G02B6/32

Abstract: An optical filter is disclosed having a pair of GRIN lenses disposed back to back, and having parallel end faces orthogonal to coaxial optical axes. Optical fiber tubes having optical fibers therein are disposed adjacent the GRIN lenses and have their inwardly facing end faces slant polished to lessen the effects of unwanted back reflections. This arrangement wherein optical axes of the optical fiber tubes are not parallel to the optical axes of the GRIN lenses is novel and inventive.

Abstract translation: 公开了一种滤光器，其具有背对背设置的一对GRIN透镜，并且具有与同轴光轴正交的平行端面。 其中具有光纤的光纤管设置在GRIN透镜附近，并且其内表面倾斜抛光以减少不希望的反射反射的影响。 这种布置，其中光纤管的光轴不平行于GRIN透镜的光轴是新颖的和创造性的。

公开(公告)号：US06219481B1

公开(公告)日：2001-04-17

申请号：US09369168

申请日：1999-08-05

Applicant: Yihao Cheng

Inventor： Yihao Cheng

IPC: G02B628

CPC classification number: G02B6/2937 ,  G02B6/266

Abstract: This invention discloses and optical filtering arrangement wherein a filter element having a coated substrate is disposed such that its ports on one side face the substrate instead of facing the coating upon the substrate. Hence, when the filter is positioned a distance from the ports, its coating side faces away from the ports while its substrate faces the ports. In this arrangement stress applied by adhesives or solder upon the coating can be eliminated.

Abstract translation: 本发明公开了一种光学滤波装置，其中具有涂覆基板的滤光元件设置成使得其一侧上的端口面向基板，而不是面向基板上的涂层。 因此，当过滤器与端口定位一定距离时，其涂层侧面临着端口，同时其基板面向端口。 在这种布置中，可以消除由粘合剂或焊料施加在涂层上的应力。

公开(公告)号：US6134360A

公开(公告)日：2000-10-17

申请号：US110389

申请日：1998-07-07

Applicant: Yihao Cheng ,  Neil Teitelbaum ,  Jozef Finak

Inventor： Yihao Cheng ,  Neil Teitelbaum ,  Jozef Finak

IPC: G02B6/36 ,  G02B6/32 ,  G02B6/38 ,  G02B6/44 ,  G02B6/26

CPC classification number: G02B6/3861 ,  G02B6/3833 ,  G02B6/32 ,  G02B6/3837

Abstract: A sleeve for retaining a plurality of optical fibers in a close or contacting relationship is provided. The sleeve has a bore receiving a number of optical fibers. The internal surface of the bore is such that when that number of optical fibers are contained therein the bore surface defines a perimeter substantially equally spaced about the external surfaces of the optical fibers. Advantageously the sleeve of the present invention may be sealed about the plurality of fibers by vitrification or adhesive to support the fibers or fiber ends without causing unequally distributed stress in the fibers. Signal quality is thus better assured.

Abstract translation: 提供了用于保持紧密或接触关系的多根光纤的套筒。 套筒具有容纳多根光纤的孔。 孔的内表面使得当其中容纳该数量的光纤时，孔表面限定围绕光纤的外表面基本上等间隔的周边。 有利地，本发明的套筒可以通过玻璃化或粘合剂围绕多根纤维密封，以支撑纤维或纤维端部，而不会在纤维中引起不均等分布的应力。 信号质量因此更好的保证。

公开(公告)号：US06014484A

公开(公告)日：2000-01-11

申请号：US15325

申请日：1998-01-29

Applicant: Gary S. Duck ,  Yihao Cheng ,  Calvin Si

Inventor： Gary S. Duck ,  Yihao Cheng ,  Calvin Si

IPC: G02B27/28 ,  G02B6/26 ,  G02B6/28 ,  G02B6/32 ,  G02B6/34

CPC classification number: G02B6/2937 ,  G02B6/2746 ,  G02B6/2848 ,  G02B6/29361 ,  G02B6/32 ,  G02B6/272

Abstract: A method and circuit is provided for more efficiently coupling light between two optical waveguides such as optical fibres. When the two waveguides are coupled to spaced apart collimating lenses such as GRIN lenses, the beam propagating between the spaced part lenses may be shifted. In this instance light can more efficiently be coupled out of the output optical fibre if it is angled with respect to the optical axis of the GRIN lens to which it is coupled. This invention provides an output fibre that is non-parallel with the optical axis of the lens it is coupled thereto.

Abstract translation: 提供了一种方法和电路，用于在诸如光纤之类的两个光波导之间更有效地耦合光。 当两个波导耦合到诸如GRIN透镜的间隔开的准直透镜时，在间隔的部分透镜之间传播的光束可能被偏移。 在这种情况下，如果相对于与其耦合的GRIN透镜的光轴成角度，则光可以更有效地耦合到输出光纤外。 本发明提供一种输出光纤，其不与其与其耦合的透镜的光轴平行。