公开(公告)号：US06333816B1

公开(公告)日：2001-12-25

申请号：US09518561

申请日：2000-03-03

Applicant: Jye-Hong Chen ,  Kok-Wai Chang ,  Kuochou Tai ,  Hong-Wei Mao ,  Yong Yin

Inventor： Jye-Hong Chen ,  Kok-Wai Chang ,  Kuochou Tai ,  Hong-Wei Mao ,  Yong Yin

IPC: G02B530

CPC classification number: G02B6/2713 ,  G02B6/2766 ,  G02B6/29386

Abstract: An apparatus capable of operating as an interleaver, a deinterleaver, a filter, or some combination thereof is described. An optical device that can be configured to multiple different optical components. In one embodiment, the optical device can be configured to operate as a single double-pass interlayer/deinterleaver, as two single-pass interleaver/deinterleavers, or as one or more filters. In one embodiment, the optical device has ports on two or more planes and a birefringent element that occupies the two or more planes. Connections between the two or more planes can be made by walk-off crystals internal to the optical device or between ports by connections that are external to the optical device to configure the optical device.

Abstract translation: 描述了能够作为交织器，去交织器，滤波器或其某种组合操作的装置。 可配置为多个不同光学元件的光学器件。 在一个实施例中，光学装置可被配置为作为单个双通道中间层/去交织器，作为两个单遍交织器/解交织器，或作为一个或多个滤波器。 在一个实施例中，光学装置具有两个或多个平面上的端口和占据两个或更多个平面的双折射元件。 两个或更多个平面之间的连接可以由光学器件内部的离散晶体或端口之间通过光学器件外部的连接来配置光学器件来进行。

公开(公告)号：US06301046B1

公开(公告)日：2001-10-09

申请号：US09517640

申请日：2000-03-03

Applicant: Kuochou Tai ,  Kok-Wai Chang ,  Jye-Hong Chen

Inventor： Kuochou Tai ,  Kok-Wai Chang ,  Jye-Hong Chen

IPC: G02B530

CPC classification number: G02B6/272 ,  G02B6/2766 ,  G02B6/29386 ,  G02B6/29395

Abstract: Interleaver/deinterleavers for combining/separating optical channels. An interleaver/deinterleaver is “folded” when an optical signal follows an optical path that passes through a birefringent element multiple times. Double-pass refers to optical signals following a (folded) path through the birefringent element twice. Multi-pass refers to optical signals following a (folded) path through the birefringent element multiple times. When operating as a deinterleaver, the interleaver/deinterleaver separates an optical signal (e.g., WDM signal) into subsets of optical signals (e.g., even and odd ITU channels). When operating as an interleaver, the interleaver/deinterleaver mixes subsets of optical signals into a multiplexed optical signal. The interleaver/deinterleaver can be used to increase the bandwidth of an optical network. For example, the interleaver/deinterleaver can be used to interface components designed for a first channel spacing (e.g., 100 GHz) to components designed for a second channel spacing (e.g., 200 GHz). Folded interleaver/deinterleavers cause dispersion because the speed at which the ordinary beam of an optical signal passes through the birefringent element is different that the speed at which the extraordinary beam of the optical signal passes through the birefringent element. In order to reduce or eliminate dispersion, the polarization of the optical signal is reversed for alternating passes through the birefringent crystal. For example, if a signal is horizontally polarized for a first pass through the birefringent crystal, the signal is rotated to be vertically polarized for a second pass through the birefringent crystal. For a third pass through the birefringent element, the signal is rotated to be horizontally polarized.

Abstract translation: 用于组合/分离光通道的交织器/去交织器。 当光信号跟随穿过双折射元件的光路多次时，交织器/解交织器被“折叠”。 双通道是指通过双折射元件的（折叠）路径之后的光信号两次。 多通道是指多次通过双折射元件的（折叠）路径之后的光信号。 当作为解交织器操作时，交织器/去交织器将光信号（例如，WDM信号）分离成光信号（例如偶数和奇数ITU信道）的子集。 当作为交织器操作时，交织器/解交织器将光信号的子集合成复用的光信号。 交织器/去交织器可以用于增加光网络的带宽。 例如，交织器/解交织器可以用于将为第一信道间隔（例如，100GHz）设计的组件接口设计成用于第二信道间隔（例如，200GHz）的组件。 由于光信号的普通光束通过双折射元件的速度与光信号的非寻常光束通过双折射元件的速度不同，所以折叠的交织器/解交织器引起色散。 为了减少或消除色散，对于交替穿过双折射晶体，光信号的偏振反转。 例如，如果信号被水平极化以进行通过双折射晶体的第一次通过，则信号被旋转以被垂直偏振，以进行双折射晶体的第二次通过。 对于通过双折射元件的第三遍，信号被旋转以进行水平极化。

公开(公告)号：US06335830B1

公开(公告)日：2002-01-01

申请号：US09476034

申请日：1999-12-31

Applicant: Kok-Wai Chang ,  Kuochou Tai

Inventor： Kok-Wai Chang ,  Kuochou Tai

IPC: G02B530

CPC classification number: G02B6/272 ,  G02B6/2766 ,  G02B6/29302 ,  G02B6/29386 ,  G02B27/283

Abstract: Interleaver/deinterleaver apparatuses for combining/separating optical channels are described. An interleaver/deinterleaver apparatus is described as folded when an optical signal is directed through a single crystal multiple times. Double-pass refers to the optical signal following a (folded) path through the apparatus twice. When operating as an deinterleaver, the interleaver/deinterleaver separates an optical signal (e.g., WDM signal) into subsets of optical signals (e.g., channels). In one embodiment, deinterleaving optical signals separates an optical signal into even and odd International Telecommunications Union (ITU) channels. When operating as an interleaver, the interleaver/deinterleaver mixes subsets of optical signals (e.g., channels) into a multiplexed (e.g., WDM) optical signal. The interleaver/deinterleaver apparatus can be used to increase the bandwidth of an optical network. For example, the interleaver/deinterleaver can be used to interface components designed for a first channel spacing (e.g., 100 GHz) to components designed for a second channel spacing (e.g., 200 GHz). In one embodiment, interleaveing combines even and odd ITU channels into a single optical signal.

Abstract translation: 描述了用于组合/分离光通道的交织器/解交织器装置。 当光信号被多次引导通过单晶时，交织器/解交织器装置被描述为折叠的。 双通道是指通过设备的（折叠）路径两次后的光信号。 当作为解交织器操作时，交织器/去交织器将光信号（例如，WDM信号）分离成光信号（例如，信道）的子集。 在一个实施例中，解交织光信号将光信号分离成偶数和奇数的国际电信联盟（ITU）信道。 当作为交织器操作时，交织器/解交织器将光信号（例如，信道）的子集合到多路复用（例如，WDM）光信号中。 交织器/解交织器装置可以用于增加光网络的带宽。 例如，交织器/解交织器可以用于将为第一信道间隔（例如，100GHz）设计的组件接口设计成用于第二信道间隔（例如，200GHz）的组件。 在一个实施例中，交织将偶数和奇数ITU信道组合成单个光信号。

公开(公告)号：US06545805B2

公开(公告)日：2003-04-08

申请号：US09855569

申请日：2001-05-16

Applicant: Xue Dong He ,  Robert R. McLeod ,  Hong-Wei Mao ,  Qingdong Guo ,  Kuochou Tai ,  Kok-Wai Chang

Inventor： Xue Dong He ,  Robert R. McLeod ,  Hong-Wei Mao ,  Qingdong Guo ,  Kuochou Tai ,  Kok-Wai Chang

IPC: G02B530

CPC classification number: G02B27/28 ,  G02B5/12

Abstract: Conventional retroreflection mirrors in the form of right angle prisms are quite sensitive to beam position and beam angle errors. Manufacturing and assembly tolerances are also a cause of concern in conventional devices. Accordingly, the present invention solves these aforementioned problems by providing a retroreflection device comprising: a beam director, preferably in the form of a Wollaston prism; a polarization rotator, preferably in the form of a quarter wave plate; and a flat reflective surface, such as a plane mirror. The device of the present invention is far less sensitive to beam angle alignment and is completely independent of the beam position. The present invention is particularly useful as a beam splitter for directing orthogonally polarized beams of light back along parallel paths in an interleaver apparatus.

公开(公告)号：US06657785B2

公开(公告)日：2003-12-02

申请号：US09933165

申请日：2001-08-21

Applicant: Thomas Ducellier ,  Kuochou Tai ,  Kok-Wai Chang ,  Jyehong Chen ,  Yihao Cheng

Inventor： Thomas Ducellier ,  Kuochou Tai ,  Kok-Wai Chang ,  Jyehong Chen ,  Yihao Cheng

IPC: G02B530

CPC classification number: G02F1/093 ,  G02F2203/05

Abstract: The present invention relates to bi-directional circulators based on interleaver technology, e.g. birefringent crystal interleaver technology, that enables signals containing even number ITU channels to travel in one direction through the device, while signals containing odd number ITU channels travel in the opposite direction. Open and closed three and four port devices are disclosed, as well as several useful implementations of the three port device in combination with other optical components, which result in hybrid uni-directional and bi-directional devices.

公开(公告)号：US06342968B1

公开(公告)日：2002-01-29

申请号：US09517641

申请日：2000-03-03

Applicant: Kuochou Tai ,  Kok-Wai Chang

Inventor： Kuochou Tai ,  Kok-Wai Chang

IPC: G02B530

CPC classification number: G02B6/272 ,  G02B6/2766 ,  G02B6/2773 ,  G02B6/29302 ,  G02B6/29386 ,  G02B6/29395 ,  G02B27/283 ,  H04J14/02

Abstract: Methods and apparatuses for tuning optical devices are described. Optical devices can be tuned by inserting tuning plates into the optical path(s) of the devices. Tuning plates can be, for example, quartz plates. By selecting the appropriate thickness and optical axis orientation, the tuning plate can be used to tune the optical devices to a precision that is unavailable through manufacturing specifications and tolerances of the components of the optical device alone. Because quartz has a relatively small birefringence, tuning plates made with quartz can be thicker, and therefore manufactured more precisely than the components of the optical devices.

Abstract translation: 描述用于调谐光学装置的方法和装置。 可以通过将调谐板插入设备的光路来调整光学器件。 调谐板可以是例如石英板。 通过选择适当的厚度和光轴方向，调谐板可以用于通过制造规范和单独的光学装置的部件的公差不可用来调整光学装置的精度。 因为石英具有相对较小的双折射，所以用石英制成的调谐板可以比光学器件的部件更加精细，因此制造得更精确。

公开(公告)号：US07058304B2

公开(公告)日：2006-06-06

申请号：US09931752

申请日：2001-08-20

Applicant: Kuochou Tai ,  Kok-Wai Chang ,  Jyehong Chen

Inventor： Kuochou Tai ,  Kok-Wai Chang ,  Jyehong Chen

IPC: H04B10/24 ,  H04B10/00 ,  H04J14/00 ,  H04J14/06 ,  G02B27/28

CPC classification number: H04Q11/0005 ,  H04Q2011/0016 ,  H04Q2011/0026 ,  H04Q2011/0075

Abstract: Wavelength interleaving cross-connects pass a first optical signal including a first set of optical frequencies in a first direction and a second optical signal including a second set of optical frequencies in a second direction. In one embodiment, the first optical signal, when input to a first input/output (I/O) port, is routed from the first I/O port to a third I/O port. The first optical signal, when input to a fourth I/O port, is routed from the fourth port to a second I/O port. The second optical signal, when input to the second I/O port, is routed from the second I/O port to the third I/O port. The second optical signal, when input to the fourth I/O port, is routed from the fourth I/O port to the first I/O port. Thus, by coupling an optical device (e.g., amplifier, filter) between the third port and the fourth port, the optical device can be used for bi-directional communications thereby reducing the number of devices required for a bi-directional optical network architecture.

公开(公告)号：US06757451B2

公开(公告)日：2004-06-29

申请号：US10082778

申请日：2002-02-25

Applicant: Kok-Wai Chang ,  Kuochou Tai ,  Jyehong Chen ,  Qingdong Quo

Inventor： Kok-Wai Chang ,  Kuochou Tai ,  Jyehong Chen ,  Qingdong Quo

IPC: G02B600

CPC classification number: G02B6/2746 ,  G02B6/272 ,  G02B6/2766 ,  G02B27/283 ,  G02F1/093 ,  G02F1/31

Abstract: An optical circulator with a first, second, third, and fourth port. The second and third port are disposed to receive polarized light entering the circulator as unpolarized light from the first port. The fourth port is disposed to receive unpolarized light entering the circulator as polarized light from the second and third port. The circulator comprises a beam-splitting and -combining element for separating and combining mutually orthogonal polarizations and a non-reciprocal polarization rotator. The circulator can be used to furnish light of a desired predetermined polarization for polarization-dependent devices.

Abstract translation: 具有第一，第二，第三和第四端口的光循环器。 第二和第三端口设置成接收作为来自第一端口的非偏振光进入环行器的偏振光。 第四端口设置成接收作为来自第二和第三端口的偏振光进入环行器的非偏振光。 环行器包括用于分离和组合相互正交的偏振的分束和组合元件和非可逆偏振旋转器。 循环器可以用于为偏振相关装置提供期望的预定极化的光。

公开(公告)号：US06587266B2

公开(公告)日：2003-07-01

申请号：US09930266

申请日：2001-08-16

Applicant: Kuochou Tai ,  Kok-Wai Chang ,  Jyehong Chen ,  Thomas Ducellier ,  Yihao Cheng

Inventor： Kuochou Tai ,  Kok-Wai Chang ,  Jyehong Chen ,  Thomas Ducellier ,  Yihao Cheng

IPC: G02B530

CPC classification number: H01S3/06754 ,  G02B6/2746 ,  G02F1/093 ,  G02F2201/17 ,  H01S3/10023 ,  H01S2301/04 ,  Y10S372/703

Abstract: Bi-directional wavelength interleaving optical isolators provide the ability to pass a first set of optical signals (e.g., ITU even channels) from a first port to a second port, while preventing a second set of optical signals from passing thereto. The bi-directional wavelength interleaving optical isolators also pass the second set of optical signals (e.g., ITU odd channels) from the second port to the first port, while preventing the first set of optical signals from passing thereto. Thus, the bi-directional wavelength interleaving optical isolator can provide bi-directional communications by passing a first set of signals in a first direction and a second set of signals in a second direction.

Abstract translation: 双向波长交织光隔离器提供将第一组光信号（例如，ITU甚至信道）从第一端口传递到第二端口的能力，同时防止第二组光信号通过。 双向波长交织光隔离器还将第二组光信号（例如，ITU奇信道）从第二端口传递到第一端口，同时防止第一组光信号通过。 因此，双向波长交织光隔离器可以通过在第一方向上传递第一组信号和在第二方向上传递第二组信号来提供双向通信。

公开(公告)号：US06697198B2

公开(公告)日：2004-02-24

申请号：US09983281

申请日：2001-10-23

Applicant: Kuochou Tai ,  Kok-Wai Chang ,  Jyehong Chen ,  Hongwei Mao

Inventor： Kuochou Tai ,  Kok-Wai Chang ,  Jyehong Chen ,  Hongwei Mao

IPC: G02B530

CPC classification number: G02B6/29302 ,  G02B6/272 ,  G02B6/29386 ,  G02B27/283

Abstract: Interleaver/deinterleaver apparatuses for combining/separating optical channels are described. When operating as a deinterleaver, the interleaver/deinterleaver separates an optical signal (e.g. WDM signal) into subsets of optical signals (e.g. channels). In one embodiment, deinterleaving optical signals separates an optical signal into even and odd International Telecommunications Union (ITU) channels. The interleaver/deinterleavers may include isolator components to route optical signals to and from input/output ports. A variety of reflective elements, e.g. quarter wave mirrors, reflective prisms, etalons, can be used for double passing the signals through a birefringent crystal assembly.

Abstract translation: 描述了用于组合/分离光通道的交织器/解交织器装置。 当作为解交织器操作时，交织器/解交织器将光信号（例如，WDM信号）分离成光信号（例如，信道）的子集。 在一个实施例中，解交织光信号将光信号分离成偶数和奇数的国际电信联盟（ITU）信道。 交织器/解交织器可以包括隔离器组件以将光信号路由到输入/输出端口和从输入/输出端口路由。 各种反射元件，例如 四分之一波长的反射镜，反射棱镜，标准具可用于双重传递信号通过双折射晶体组件。