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.

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。

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。

公开(公告)号：US4774483A

公开(公告)日：1988-09-27

申请号：US94961

申请日：1987-09-09

申请人： Giuseppe Miccoli ,  Kok-Wai Chang ,  William E. Kunz ,  Waguih Ishak

发明人： Giuseppe Miccoli ,  Kok-Wai Chang ,  William E. Kunz ,  Waguih Ishak

IPC分类号： H01P7/00 ,  H01P1/215 ,  H03H2/00 ,  H03H3/08 ,  H03H9/25 ,  H01P7/06 ,  H03H9/24

CPC分类号： H03H2/001

摘要： A magnetostatic wave resonator having a transducer oriented such that it is tangent at all points to a wavefront of a traveling wave component of a resonant mode of the resonant cavity. In a rectangular cavity of width L.sub.x and length L.sub.y, the transducer is perpendicular to the wavevector k=(m.pi./L.sub.x)e.sub.x +(n.pi./L.sub.y)e.sub.y for some nonzero integers m and n, whereby the transducer optimally transfers energy into the resonant mode that is a linear superposition of travelling waves that includes this wavevector. This enhances coupling into the resonant mode of interest and reduces the amount of coupling into spurious modes.

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.

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。

公开(公告)号：US06333816B1

公开(公告)日：2001-12-25

申请号：US09518561

申请日：2000-03-03

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

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

IPC分类号： G02B530

CPC分类号： G02B6/2713 ,  G02B6/2766 ,  G02B6/29386

摘要： 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.

摘要翻译： 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：US6026202A

公开(公告)日：2000-02-15

申请号：US805001

申请日：1997-02-25

申请人： Kok-Wai Chang

发明人： Kok-Wai Chang

IPC分类号： G02B5/30 ,  G02B6/26 ,  G02B6/38 ,  G02B27/28 ,  G02F1/09 ,  G02B6/27

CPC分类号： G02B6/2746 ,  G02F1/093 ,  G02B6/3839

摘要： A miniature three-port optical circulator that comprises a first input/output (I/O) port, a second I/O port complementary to the first I/O port, and a second walk-off crystal located between the first I/O port and the second I/O port. The first I/O port includes a light coupling assembly, a first walk-off crystal and a split polarization rotator arranged in order along the optical axis. The light coupling assembly comprises a capillary and two optical fibers. The optical fibers are secured side-by-side in the bore of the capillary. The optical fibers each have a diameter of one half of the diameter of the bore. The cores of the optical fibers are separated from one another in a separation direction by a separation distance. The first walk-off crystal is located to receive the light beams and has a first walk-off direction perpendicular to the separation direction. The split polarization rotator is mounted adjacent the first walk-off crystal and has a positive half and a negative half. The split polarization rotator is located so that the polarization components of the light beams that are deviated by the first walk-off crystal pass through one of the positive half and the negative half, and the polarization components that are not deviated by the first walk-off crystal pass through the other of the positive half and the negative half. The second walk-off crystal has a second walk-off direction perpendicular to the first walk-off direction, and has a walk-off distance equal to the separation distance.

摘要翻译： 一种微型三端口光循环器，包括第一输入/输出（I / O）端口，与第一I / O端口互补的第二I / O端口和位于第一I / O端口之间的第二偏移晶体 端口和第二个I / O端口。 第一I / O端口包括沿着光轴顺序布置的光耦合组件，第一偏移晶体和分离偏振旋转器。 光耦合组件包括毛细管和两根光纤。 光纤并排固定在毛细管的孔中。 光纤各自具有孔径直径的一半的直径。 光纤的芯线在分离方向上彼此间隔开距离。 第一离散晶体位于接收光束并且具有垂直于分离方向的第一走向方向。 分离的偏振旋转器安装在第一离开晶体附近，并且具有正半和负半。 分离偏振旋转器被定位成使得由第一偏移晶体偏离的光束的偏振分量通过正半部和负半部中的一个偏振分量， 关闭晶体通过正半和负半的另一个。 第二离散晶体具有垂直于第一走向方向的第二走向方向，并且具有等于间隔距离的离开距离。

公开(公告)号：US5436925A

公开(公告)日：1995-07-25

申请号：US205671

申请日：1994-03-01

申请人： Hong Lin ,  Kok-Wai Chang ,  David K. Donald

发明人： Hong Lin ,  Kok-Wai Chang ,  David K. Donald

IPC分类号： G01C19/72 ,  H01S3/06 ,  H01S3/067 ,  H01S3/07 ,  H01S3/083 ,  H01S3/098 ,  H01S3/17 ,  H01S3/08

CPC分类号： H01S3/1118 ,  H01S3/06791

摘要： A CPM mode-locked fiber ring laser including an ion-implanted semiconductor saturable absorber providing sub-picosecond pulses at rapid repetition rates. The laser provides compact, turn-key capability and is polarization insensitive.

摘要翻译： 一种CPM模式锁定光纤环形激光器，其包括以快速重复率提供亚皮秒脉冲的离子注入的半导体可饱和吸收体。 激光器提供紧凑的交钥匙功能，并且是极化不敏感的。

公开(公告)号：US07081996B2

公开(公告)日：2006-07-25

申请号：US09901580

申请日：2001-07-11

申请人： Gonzalo Wills ,  Pierre D. Wall ,  Kok-Wai Chang ,  Fahong Jin ,  Xinglong Wang

发明人： Gonzalo Wills ,  Pierre D. Wall ,  Kok-Wai Chang ,  Fahong Jin ,  Xinglong Wang

IPC分类号： G02B5/30 ,  G02B27/28

CPC分类号： G02B6/32 ,  G02B6/272 ,  G02B6/2746 ,  G02B6/2773 ,  G02B27/283

摘要： An isolated polarization beam splitter or combiner, for joining light from different inputs into one common port, and for dividing a beam of light into orthogonal polarizations. In both modes of operation, the splitter/combiner provides isolation preventing transmission of light in a reverse direction. As a splitter, a beam of light is separated through a birefringent material into sub-beams of orthogonal polarization components, and each sub-beam is passed through a non-reciprocal polarization rotator to rotate the polarization so that a reflected beam, or other counter-transmitted light cannot return on the same path through the birefringent material to the source. As a combiner, two separate beams of light are launched with known orthogonal polarizations into a first birefringent material, passed through a non-reciprocal polarization rotator and then combined as orthogonal polarizations into a single output port.

摘要翻译： 隔离的偏振分束器或组合器，用于将来自不同输入的光组合成一个公共端口，并将光束分成正交偏振。 在两种操作模式下，分离器/组合器提供隔离，防止光沿相反方向传输。 作为分光器，光束通过双折射材料分离成正交偏振分量的子光束，并且每个子光束通过非可逆偏振旋转器以旋转偏振，使得反射光束或其它反射器 发射光不能在通过双折射材料到源极的相同路径上返回。 作为组合器，通过已知的正交偏振将两个单独的光束发射到第一双折射材料中，通过非倒数偏振旋转器，然后作为正交偏振组合成单个输出端口。