公开(公告)号：US06640024B1

公开(公告)日：2003-10-28

申请号：US09700245

申请日：2000-11-09

申请人： Byoung Yoon Kim ,  Hee Su Park ,  Seok Hyun Yun

发明人： Byoung Yoon Kim ,  Hee Su Park ,  Seok Hyun Yun

IPC分类号： G02B628

CPC分类号： G02B6/0208 ,  G02B6/02085 ,  G02B6/29334 ,  G02B6/29344 ,  G02B6/29353 ,  G02B6/29383

摘要： An add-drop wavelength filter is described which separates specific wavelength components from optical signals propagating through an optical waveguide or adds specific wavelength components thereto. In general, add-drop wavelength filters serve to separate or add specific channels in channels comprising several different wavelengths in a wavelength division optical communication system, and require good wavelength selectivity, stability and etc. Up to now, several types of add-drop wavelength filters are proposed, however disadvantageously they were not stable or were difficult to fabricate. The add-drop wavelength filter of the present invention comprising a mode discrimination coupler, Bragg gratings in which mode conversion occurs and etc., utilizes mode conversion in a dual mode waveguide and has low loss and stability. Furthermore, devices included in the add-drop wavelength filter are conventionally used, thereby resulting in easy fabrication, and the application fields of the devices can be easily expanded by apodization, chirping, or etc. of the Bragg gratings.

摘要翻译： 描述了分离波长滤波器，其将特定波长分量与通过光波导传播的光信号分离或向其中添加特定波长分量。 通常，加分波长滤波器用于在波分复用光通信系统中分离或添加包含若干不同波长的信道中的特定信道，并且需要良好的波长选择性，稳定性等。到目前为止，几种类型的添加波长 提出了过滤器，但是不利的是它们不稳定或难以制造。 包括模式鉴别耦合器，发生模式转换的布拉格光栅等的本发明的分插波长滤波器利用双模波导中的模式转换并且具有低的损耗和稳定性。 此外，常规地使用包括在分插波长滤波器中的器件，从而易于制造，并且可以通过布拉格光栅的变迹，啁啾等容易地扩展器件的应用领域。

公开(公告)号：US06208590B1

公开(公告)日：2001-03-27

申请号：US09434169

申请日：1999-11-04

申请人： Byoung Yoon Kim ,  Wang Joo Lee ,  Ki Ho Han

发明人： Byoung Yoon Kim ,  Wang Joo Lee ,  Ki Ho Han

IPC分类号： H04R144

CPC分类号： G01D5/35383

摘要： The present invention relates to a Sagnac interferometric sensor array for acoustic sensing and method of sensing acoustic signal that is able to observe acoustic signals coming from several sources simultaneously. The acoustic sensor of the present invention is a Sagnac interferometric sensor array employing a depolarizer. Unlike a single Sagnac interferometric sensor, two light signals traveling in the opposite directions from each other pass through the off-center position of the loop at different times in the Sagnac loop when they are pulses, and thus, it is possible for the light pulses to be maintained at a constant phase difference by giving arbitrarily a certain amount of phase to them. By using the fact, the interferometer is constructed in such a way that the interference light output coincides with the applied acoustic signals in waveform. This invention suggests a way of fabricating an array of fiber-optic acoustic sensors that is easy to be made and is highly sensitive at some frequency band.

摘要翻译： 本发明涉及一种用于声学感测的Sagnac干涉式传感器阵列和能够同时观察来自多个源的声学信号的感测声学信号的方法。 本发明的声学传感器是采用消偏振器的Sagnac干涉测量传感器阵列。 与单个Sagnac干涉测量传感器不同，当它们是脉冲时，在Sagnac环路中的不同时间彼此相反的两个光信号在相反方向上行进通过环路的偏心位置，因此，可以对光脉冲 通过给予它们一定量的相位来保持恒定的相位差。 通过使用该事实，干涉仪被构造成使得干涉光输出与施加的波形信号一致。 本发明提出一种制造光纤声学传感器阵列的方法，其易于制造并且在某些频带处是高度灵敏的。

公开(公告)号：US06532322B1

公开(公告)日：2003-03-11

申请号：US09666210

申请日：2000-09-21

申请人： Byoung Yoon Kim ,  Seok Hyun Yun ,  Wayne V. Sorin

发明人： Byoung Yoon Kim ,  Seok Hyun Yun ,  Wayne V. Sorin

IPC分类号： G02B626

CPC分类号： H04J14/0221 ,  G02B6/02052 ,  G02B6/02071 ,  G02B6/021 ,  G02B6/12021 ,  G02B6/14 ,  G02B6/2552 ,  G02B6/266 ,  G02B6/29322 ,  G02F1/0134 ,  G02F1/125 ,  G02F2201/02 ,  H04J14/0201 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217

摘要： An optical communication assembly has an optical cross connect coupled to a first, a second, a third and a fourth set of optical fibers. A first demultiplexer is coupled to a first input fiber and the first set of optical fibers and a second demultiplexer is coupled to a second input fiber and the second set of optical fibers. A first multiplexer is coupled to a first output fiber and the third set of optical fibers. A second multiplexer is coupled to a second output fiber and the fourth set of optical fibers. A first set of attenuators is coupled to the third set of optical fibers and a second set of attenuators coupled to the fourth set of optical fibers.

摘要翻译： 光通信组件具有耦合到第一，第二，第三和第四组光纤的光学交叉连接。 第一解复用器耦合到第一输入光纤并且第一组光纤和第二解复用器耦合到第二输入光纤和第二组光纤。 第一多路复用器耦合到第一输出光纤和第三组光纤。 第二多路复用器耦合到第二输出光纤和第四组光纤。 第一组衰减器耦合到第三组光纤，以及耦合到第四组光纤的第二组衰减器。

公开(公告)号：US06510261B2

公开(公告)日：2003-01-21

申请号：US09729661

申请日：2000-12-04

申请人： Wayne V. Sorin ,  Pavel Polynkin ,  Steven L. Shepherd ,  Byoung Yoon Kim ,  Seok Hyun Yun

发明人： Wayne V. Sorin ,  Pavel Polynkin ,  Steven L. Shepherd ,  Byoung Yoon Kim ,  Seok Hyun Yun

IPC分类号： G02B642

CPC分类号： H04J14/0221 ,  G02B6/02071 ,  G02B6/14 ,  G02B6/2552 ,  G02B6/266 ,  G02F1/125 ,  G02F2201/02 ,  H04J14/0212

摘要： An acousto-optic filter includes an optical fiber with a first region and a second region. A first acoustic wave generator is coupled to optical fiber. The first acoustic wave generator produces a first acoustic wave that travels in a first direction in the first region. A backward-propagating wave is generated in response to propagation of the first acoustic wave along the optical fiber. The backward-propagating wave travels in an opposite direction relative to the first acoustic wave. A first acoustic wave propagation member is coupled to the optical fiber. A second acoustic wave generator is coupled to the optical fiber at the second region. The second acoustic wave generator produces a second acoustic wave that combines with the backward propagating acoustic wave.

公开(公告)号：US06343165B1

公开(公告)日：2002-01-29

申请号：US09577202

申请日：2000-05-23

申请人： Byoung Yoon Kim ,  Seok Hyun Yun ,  Hee Su Park ,  Wayne V. Sorin

发明人： Byoung Yoon Kim ,  Seok Hyun Yun ,  Hee Su Park ,  Wayne V. Sorin

IPC分类号： G02B642

CPC分类号： G02F1/125 ,  G02B6/02071 ,  G02F1/0134 ,  G02F2201/02 ,  G02F2203/055 ,  G02F2203/585 ,  H04J14/0201 ,  H04J14/0208 ,  H04J14/0209 ,  H04J14/0213

摘要： An optical add/drop multiplexer includes a mode converter. A first mode coupler is coupled to an input of the mode converter. A second mode coupler is coupled to an output of the mode converter. The mode converter includes an optical fiber with multiple cladding modes and a single core mode guided along a core. An acoustic wave propagation member is coupled to the optical fiber. The acoustic wave propagation member propagates an acoustic wave from its proximal to its distal end. At least one acoustic wave generator is coupled to the proximal end of the acoustic wave propagation member.

摘要翻译： 光分插复用器包括模转换器。 第一模式耦合器耦合到模式转换器的输入端。 第二模式耦合器耦合到模式转换器的输出端。 模式转换器包括具有多个包层模式的光纤和沿核心引导的单个核心模式。 声波传播部件耦合到光纤。 声波传播部件将声波从其近端传播到其远端。 至少一个声波发生器耦合到声波传播构件的近端。

公开(公告)号：US06266462B1

公开(公告)日：2001-07-24

申请号：US09426060

申请日：1999-10-22

申请人： Byoung Yoon Kim ,  Seok Hyun Yun ,  Bong Wan Lee

发明人： Byoung Yoon Kim ,  Seok Hyun Yun ,  Bong Wan Lee

IPC分类号： G02F1295

CPC分类号： G02F1/125 ,  G02B6/02071 ,  G02B6/14 ,  G02F1/0134

摘要： An acousto-optic filter has a non-birefringent single mode optical fiber with a longitudinal axis, a core and a cladding in a surrounding relationship to the core. The optical fiber has multiple cladding modes and a single core mode that is guided along the core. An acoustic wave propagation member has a proximal end and a distal end coupled to the optical fiber. The acoustic wave propagation member propagates an acoustic wave from the proximal to the distal end and launches a flexural wave in the optical fiber. At least one acoustic wave generator is coupled to the proximal end of the acoustic wave propagation member.

摘要翻译： 声光滤波器具有非双折射单模光纤，其具有与芯部周围关系的纵轴，芯和包层。 光纤具有多个包层模式和沿核心引导的单核心模式。 声波传播构件具有耦合到光纤的近端和远端。 声波传播部件将声波从近端传播到远端，并且在光纤中发射弯曲波。 至少一个声波发生器耦合到声波传播构件的近端。

公开(公告)号：US06253002B1

公开(公告)日：2001-06-26

申请号：US09571092

申请日：2000-05-15

申请人： Byoung Yoon Kim ,  Seok Hyun Yun ,  Bong Wan Lee

发明人： Byoung Yoon Kim ,  Seok Hyun Yun ,  Bong Wan Lee

IPC分类号： G02B626

CPC分类号： G02F1/125 ,  G02B6/02071 ,  G02B6/14

摘要： An acousto-optic filter has a non-birefringent single mode optical fiber with a longitudinal axis, a core and a cladding in a surrounding relationship to the core. The optical fiber has multiple cladding modes and a single core mode that is guided along the core. An acoustic wave propagation member has a proximal end and a distal end coupled to the optical fiber. The acoustic wave propagation member propagates an acoustic wave from the proximal to the distal end and launches a flexural wave in the optical fiber. At least one acoustic wave generator is coupled to the proximal end of the acoustic wave propagation member.

公开(公告)号：US06901087B1

公开(公告)日：2005-05-31

申请号：US08925208

申请日：1997-09-08

申请人： David John Richardson ,  David Oliver Culverhouse ,  Seok Hyun Yun ,  Byoung Yoon Kim

发明人： David John Richardson ,  David Oliver Culverhouse ,  Seok Hyun Yun ,  Byoung Yoon Kim

IPC分类号： H01S3/067 ,  H01S3/106 ,  H01S5/04 ,  H01S5/14 ,  H01S3/10 ,  H01S3/08 ,  H01S3/117 ,  H01S3/13 ,  H01S3/30

CPC分类号： H01S3/106 ,  H01S3/067 ,  H01S3/1068 ,  H01S5/041 ,  H01S5/141 ,  H01S5/146

摘要： A broadband laser source comprising: a resonant cavity (1) containing a medium (2) which emits optical energy (3) in a continuum of wavelengths in response to application of pump energy (4) to the medium (2); a source of pump energy (5) for producing said optical energy (3); a frequency shifter (6) within the resonant cavity (1); and a tuneable spectral filter (7) within the resonant cavity (1), and the apparatus being such that in use the tuneable spectral filter (7) has a peak wavelength which is repeatedly swept in a substantially resonant fashion over a wavelength range equal to, or a fraction of, a linewidth of the broadband source such that the rate of change of the peak wavelength of the tuneable spectral filter (7) is substantially equal to the rate of change of the frequency of the optical energy (3) as it is frequency shifted within the resonant cavity (1) by the frequency shifter (6).

摘要翻译： 一种宽带激光源，包括：谐振腔（1），响应于将泵浦能量（4）施加到所述介质（2）而包含以连续波长发射光能的介质（2）; 用于产生所述光能（3）的泵浦能量源（5）; 谐振腔（1）内的变频器（6）; 以及谐振腔（1）内的可调频谱滤波器（7），并且该装置使得在使用中可调频谱滤波器（7）具有峰值波长，该峰值波长以基本上共振的方式在相当于 ，或宽带源的线宽的一部分，使得可调频谱滤波器（7）的峰值波长的变化率基本上等于光能（3）的频率的变化率，因为它 通过变频器（6）在谐振腔（1）内频移。

公开(公告)号：US06850655B2

公开(公告)日：2005-02-01

申请号：US09805489

申请日：2001-03-13

申请人： Wayne V. Sorin ,  Byoung Yoon Kim

发明人： Wayne V. Sorin ,  Byoung Yoon Kim

IPC分类号： G02B6/02 ,  G02B6/14 ,  G02B6/255 ,  G02B6/26 ,  G02B6/34 ,  G02F1/01 ,  G02F1/125 ,  H04J14/02 ,  G02B6/00

CPC分类号： G02B6/14 ,  G02B6/02047 ,  G02B6/02071 ,  G02B6/021 ,  G02B6/2552 ,  G02B6/266 ,  G02B6/2746 ,  G02B6/29344 ,  G02B6/29358 ,  G02B6/29361 ,  G02B6/29383 ,  G02B6/29391 ,  G02B6/29395 ,  G02F1/0134 ,  G02F1/125 ,  G02F2201/02 ,  G02F2203/055 ,  H04J14/0201 ,  H04J14/0208 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217 ,  H04J14/0221

摘要： An optical apparatus for transmitting an optical signal includes a static filter, a Faraday rotator and a reflector. The Faraday rotator makes a first change in polarization of an optical signal in a first direction, and a second change in polarization of the optical signal received from the reflector in a second direction. This produces a polarization of the optical signal that is substantially orthogonal to an initial polarization state of the optical signal.

摘要翻译： 用于发送光信号的光学装置包括静态滤波器，法拉第旋转器和反射器。 法拉第旋转器在第一方向上进行光信号的偏振的第一变化，并且在第二方向上从反射器接收的光信号的偏振的第二变化。 这产生基本上与光信号的初始极化状态正交的光信号的偏振。

公开(公告)号：US06631224B2

公开(公告)日：2003-10-07

申请号：US09765971

申请日：2001-01-19

申请人： Wayne V. Sorin ,  Myoung Soo Lee ,  In-Kag Hwang ,  Byoung Yoon Kim

发明人： Wayne V. Sorin ,  Myoung Soo Lee ,  In-Kag Hwang ,  Byoung Yoon Kim

IPC分类号： G02B642

CPC分类号： H04J14/0221 ,  G02B6/02071 ,  G02B6/021 ,  G02B6/14 ,  G02B6/2552 ,  G02B6/266 ,  G02F1/125 ,  G02F2201/02 ,  G02F2203/055 ,  H04J14/0201 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217

摘要： An optic apparatus includes an optical fiber with a cladding surrounding a core and a core-mode blocker included in at least a portion of an interactive region of the optical fiber. A mode coupler is coupled to the optical fiber and couples a first mode to a different spatial mode in a forward direction of the optical fiber.

摘要翻译： 光学装置包括具有围绕芯的包层的光纤和包括在光纤的交互区域的至少一部分中的芯模阻止器。 模式耦合器耦合到光纤并且将第一模式耦合到光纤的正向上的不同空间模式。