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1. 发明授权

US06757451B2 Optical circulator 失效
标题翻译：光循环器
公开(公告)号：US06757451B2
公开(公告)日：2004-06-29
申请号：US10082778
申请日：2002-02-25
申请人： Kok-Wai Chang , Kuochou Tai , Jyehong Chen , Qingdong Quo
发明人： Kok-Wai Chang , Kuochou Tai , Jyehong Chen , Qingdong Quo
IPC分类号： G02B600
CPC分类号： G02B6/2746 , G02B6/272 , G02B6/2766 , G02B27/283 , G02F1/093 , G02F1/31
摘要： 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.
摘要翻译：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。

2. 发明授权

US06804467B2 Chromatic dispersion compensation device 失效
标题翻译：色散补偿装置
公开(公告)号：US06804467B2
公开(公告)日：2004-10-12
申请号：US09823971
申请日：2001-04-03
申请人： Paul Colbourne , Kuochou Tai , Jyehong Chen , Kok Wai Chang
发明人： Paul Colbourne , Kuochou Tai , Jyehong Chen , Kok Wai Chang
IPC分类号： H04J1402
CPC分类号： G02B6/29358 , G02B6/29386 , G02B6/29394 , H04B10/25133
摘要： A method and device is disclosed for dispersion compensation of an optical signal having periodic dispersion within a multi-channels system. For example interleaved optical channels often exhibit dispersion having a characteristic that is repeated in adjacent channels. By providing a periodic device that allows for polarization dependent routing of an interleaved signal to allow for multiple passes of said signal through a multi-cavity GT etalon, having a free-spectral range that corresponds to the channel spacing, the dispersion in the interleaved signal can be lessened and practically obviated or balanced to a desired level. This invention provides a device and method to achieve that end.
摘要翻译：公开了一种用于在多通道系统内具有周期性色散的光信号的色散补偿的方法和装置。例如，交织的光信道通常表现出具有在相邻信道中重复的特征的色散。通过提供周期性器件，其允许交错信号的偏振相关路由以允许具有对应于信道间隔的自由谱范围的多腔GT标准具的所述信号的多次通过，交织信号中的色散可以减轻并且实际上被消除或平衡到期望的水平。本发明提供了一种实现该目的的装置和方法。

3. 发明授权

US06657785B2 Bi-directional circulator 失效
公开(公告)号：US06657785B2
公开(公告)日：2003-12-02
申请号：US09933165
申请日：2001-08-21
申请人： Thomas Ducellier , Kuochou Tai , Kok-Wai Chang , Jyehong Chen , Yihao Cheng
发明人： Thomas Ducellier , Kuochou Tai , Kok-Wai Chang , Jyehong Chen , Yihao Cheng
IPC分类号： G02B530
CPC分类号： G02F1/093 , G02F2203/05
摘要： 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.

4. 发明授权

US07058304B2 Bi-directional cross-connect 失效
公开(公告)号：US07058304B2
公开(公告)日：2006-06-06
申请号：US09931752
申请日：2001-08-20
申请人： Kuochou Tai , Kok-Wai Chang , Jyehong Chen
发明人： Kuochou Tai , Kok-Wai Chang , Jyehong Chen
IPC分类号： H04B10/24 , H04B10/00 , H04J14/00 , H04J14/06 , G02B27/28
CPC分类号： H04Q11/0005 , H04Q2011/0016 , H04Q2011/0026 , H04Q2011/0075
摘要： 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.

5. 发明授权

US06587266B2 Bi-directional isolator 失效
标题翻译：双向隔离器
公开(公告)号：US06587266B2
公开(公告)日：2003-07-01
申请号：US09930266
申请日：2001-08-16
申请人： Kuochou Tai , Kok-Wai Chang , Jyehong Chen , Thomas Ducellier , Yihao Cheng
发明人： Kuochou Tai , Kok-Wai Chang , Jyehong Chen , Thomas Ducellier , Yihao Cheng
IPC分类号： G02B530
CPC分类号： H01S3/06754 , G02B6/2746 , G02F1/093 , G02F2201/17 , H01S3/10023 , H01S2301/04 , Y10S372/703
摘要： 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.
摘要翻译：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。

6. 发明授权

US06697198B2 Optical interleavers/deinterleavers 有权
标题翻译：光交织器/解交织器
公开(公告)号：US06697198B2
公开(公告)日：2004-02-24
申请号：US09983281
申请日：2001-10-23
申请人： Kuochou Tai , Kok-Wai Chang , Jyehong Chen , Hongwei Mao
发明人： Kuochou Tai , Kok-Wai Chang , Jyehong Chen , Hongwei Mao
IPC分类号： G02B530
CPC分类号： G02B6/29302 , G02B6/272 , G02B6/29386 , G02B27/283
摘要： 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.
摘要翻译：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。

7. 发明授权

US06587267B2 Beam directing device 失效
公开(公告)号：US06587267B2
公开(公告)日：2003-07-01
申请号：US09986530
申请日：2001-11-09
申请人： Kuochou Tai , Kok-Wai Chang , Jyehong Chen , Qing Dong Guo
发明人： Kuochou Tai , Kok-Wai Chang , Jyehong Chen , Qing Dong Guo
IPC分类号： G02B2728
CPC分类号： G02B6/2746 , G02B6/272 , G02B6/2766 , G02B6/2773 , G02B6/29302 , G02B27/283
摘要： Described are various optical devices having at least two optical waveguides for inputting and outputting optical beams coupled thereto by a single collimating lens. Located proximate to the lens is a polarization dependent beam directing device that deflects orthogonally polarized optical beams in opposite directions by a first and second angle, respectively, when the beams are propagating in the same direction. The polarization dependent beam director compensates for an angle between a first beam input via a first of the two waveguides and a second beam input via a second of the two waveguides. The polarization dependent beam director also deflects a first beam propagating towards the waveguides in a first direction so that it is output via the first of the two waveguides and deflects a second beam propagating towards the waveguides in a second direction opposite the first so that it is output via the second of the two waveguides. Disclosed are three and four port interleavers and a four port circulator.

8. 发明授权

US06335830B1 Double-pass folded interleaver/deinterleavers 有权
标题翻译：双通折叠交织器/解交织器
公开(公告)号：US06335830B1
公开(公告)日：2002-01-01
申请号：US09476034
申请日：1999-12-31
申请人： Kok-Wai Chang , Kuochou Tai
发明人： Kok-Wai Chang , Kuochou Tai
IPC分类号： G02B530
CPC分类号： G02B6/272 , G02B6/2766 , G02B6/29302 , G02B6/29386 , G02B27/283
摘要： 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.
摘要翻译：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。

9. 发明授权

US06545805B2 Polarization-dependent retroreflection mirror device 有权
公开(公告)号：US06545805B2
公开(公告)日：2003-04-08
申请号：US09855569
申请日：2001-05-16
申请人： Xue Dong He , Robert R. McLeod , Hong-Wei Mao , Qingdong Guo , Kuochou Tai , Kok-Wai Chang
发明人： Xue Dong He , Robert R. McLeod , Hong-Wei Mao , Qingdong Guo , Kuochou Tai , Kok-Wai Chang
IPC分类号： G02B530
CPC分类号： G02B27/28 , G02B5/12
摘要： 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.

10. 发明授权

US06342968B1 Frequency tuning of optical devices 有权
标题翻译：光学设备的频率调谐
公开(公告)号：US06342968B1
公开(公告)日：2002-01-29
申请号：US09517641
申请日：2000-03-03
申请人： Kuochou Tai , Kok-Wai Chang
发明人： Kuochou Tai , Kok-Wai Chang
IPC分类号： G02B530
CPC分类号： G02B6/272 , G02B6/2766 , G02B6/2773 , G02B6/29302 , G02B6/29386 , G02B6/29395 , G02B27/283 , H04J14/02
摘要： 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.
摘要翻译：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。

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