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1. 发明授权

US06377351B1 Fiber laser gyroscope with phase sensitive detection 失效
标题翻译：光纤激光陀螺仪，具有相敏检测功能
公开(公告)号：US06377351B1
公开(公告)日：2002-04-23
申请号：US09434170
申请日：1999-11-04
申请人： Byoung Yoon Kim , Jong Bum Hong , Young Bae Yeo , Bong Wan Lee
发明人： Byoung Yoon Kim , Jong Bum Hong , Young Bae Yeo , Bong Wan Lee
IPC分类号： G01C1972
CPC分类号： G01C19/72
摘要： A fiber-optic laser gyroscope having phase sensitive detecting means which can reduce rotation rate measurement errors. In the fiber-optic laser gyroscope, errors due to the relative intensity difference between two consecutive pulses, which was an error factor in rotation rate measurement through time interval measurement between two adjacent pulses, can be eliminated by having a phase sensitive detection means which may extract and detect only components having the same phase as that of a phase-modulated signal from components having the same frequency as that of a phase-modulated signal. An output from the phase sensitive detecting means has an additional characteristic of being linearly proportional to rotation rate. The fiber-optic laser gyroscope of the present invention, therefore, has a characteristic of a relatively simple signal processing compared to conventional interferometric fiber gyroscopes.
摘要翻译：具有相位敏感检测装置的光纤激光陀螺仪可以降低旋转速率的测量误差。在光纤激光陀螺仪中，通过两相邻脉冲之间的时间间隔测量的旋转速率测量中的误差因子，可以消除由于两个相邻脉冲之间的相对强度差引起的误差，具有相敏检测装置，从具有与相位调制信号的频率相同的频率的分量中仅提取和检测与相位调制信号具有相同相位的分量。来自相敏检测装置的输出具有与旋转速率成线性比例的附加特性。因此，与传统的干涉光纤陀螺仪相比，本发明的光纤激光陀螺仪具有比较简单的信号处理的特征。

2. 发明授权

US06266456B1 Optical fiber polarization scrambler and operating parameter input method therefor 有权
标题翻译：光纤极化扰频器及其操作参数输入方法
公开(公告)号：US06266456B1
公开(公告)日：2001-07-24
申请号：US09403379
申请日：1999-10-19
申请人： Bong Wan Lee , Yeon Wan Koh , Young Bae Yeo , Byoung Yoon Kim
发明人： Bong Wan Lee , Yeon Wan Koh , Young Bae Yeo , Byoung Yoon Kim
IPC分类号： G02B600
CPC分类号： G02B6/2786 , G02F1/0134 , G02F2001/0139
摘要： An optical fiber polarization scrambler decreasing the degree of polarization (DOP) of light efficiently using at least two optical fiber birefringence modulators (10, 11) and an operating parameter input method for the same. Birefringence modulators are constructed with hollow cylindrical piezo devices (10, 11) and a strand of optical fiber (30) wound continuously on the outer walls of the piezo devices (10, 11). An angle between the birefringence modulators consisting of the optical fiber polarization scrambler is configured to compensate the effect of circular birefringence. A method for exactly configuring birefringence modulation frequency and birefringence modulation amplitude to achieve effective polarization scrambling for the optical fiber polarization scrambler is also provided.
摘要翻译：光纤偏振加扰器使用至少两个光纤双折射调制器（10,11）及其操作参数输入方法有效地降低光的偏振度（DOP）。双折射调制器由中空圆柱形压电器件（10,11）和连续缠绕在压电器件（10,11）的外壁上的一束光纤（30）构成。由光纤偏振扰乱器组成的双折射调制器之间的角度被配置为补偿圆形双折射的影响。还提供了用于精确配置双折射调制频率和双折射调制幅度以实现光纤极化扰频器的有效偏振加扰的方法。

3. 发明授权

US06233371B1 Optical fiber polarization controller 有权
标题翻译：光纤极化控制器
公开(公告)号：US06233371B1
公开(公告)日：2001-05-15
申请号：US09214961
申请日：1999-01-15
申请人： Byoung Yoon Kim , Yeon Wan Koh , Young Kie Kim , Young Bae Yeo
发明人： Byoung Yoon Kim , Yeon Wan Koh , Young Kie Kim , Young Bae Yeo
IPC分类号： G02B600
CPC分类号： G02B6/2766 , G02B6/105 , G02B6/274 , G02B6/29395 , G02F1/0134 , G02F1/0136
摘要： An optical fiber polarization controller which has compact size by employing wave plates made of short sections of a first optical fiber having inherent birefringence such as a polarization maintaining optical fiber. In the control of the polarization state of input light, a second optical fiber, for example a single mode fiber, connected to the first optical fiber is twisted using fixing knobs, thereby rotating the birefringence axis of the first optical fiber with respect to the second optical fiber.
摘要翻译：一种光纤偏振控制器，其通过使用由具有固有双折射性的第一光纤的短部分制成的波片（例如偏振保持光纤）而具有紧凑的尺寸。在控制输入光的偏振状态时，连接到第一光纤的第二光纤（例如单模光纤）使用固定旋钮进行扭曲，从而相对于第二光纤旋转第一光纤的双折射轴光纤。

4. 发明授权

US06266462B1 Acousto-optic filter 有权
标题翻译：声光滤镜
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。

5. 发明授权

US06253002B1 Acousto-optic filter 有权
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.

6. 发明授权

US06532323B2 Acousto-optic filter 失效
标题翻译：声光滤镜
公开(公告)号：US06532323B2
公开(公告)日：2003-03-11
申请号：US09738282
申请日：2000-12-14
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。

7. 发明授权

US06535665B1 Acousto-optic devices utilizing longitudinal acoustic waves 失效
标题翻译：使用纵向声波的声光器件
公开(公告)号：US06535665B1
公开(公告)日：2003-03-18
申请号：US09577213
申请日：2000-05-23
申请人： Byoung Yoon Kim , Seok Hyun Yun , Bong Wan Lee , Wayne Sorin
发明人： Byoung Yoon Kim , Seok Hyun Yun , Bong Wan Lee , Wayne Sorin
IPC分类号： G02B626
CPC分类号： G02F1/0134 , G02B6/02071 , G02F1/125 , G02F2201/02 , G02F2201/16 , G02F2202/32 , G02F2203/055 , G02F2203/585 , H04J14/0208 , H04J14/0209 , H04J14/0213
摘要： An acousto-optic filter includes an 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. At least one acoustic wave generator is included and made of a sufficiently high frequency piezoelectric material to produce a longitudinal acoustic wave. An acoustic wave propagation member has proximal and distal ends. The distal end is coupled to the optical fiber and the proximal end is coupled to the acoustic wave generator. The acoustic wave propagation member propagates the longitudinal acoustic wave from the proximal to the distal ends and excites the longitudinal acoustic wave in the optical fiber.
摘要翻译：声光滤波器包括具有纵向轴线的光纤，芯部和与芯部的周围关系的包层。光纤具有多个包层模式。包括至少一个声波发生器并由足够高频率的压电材料制成以产生纵向声波。声波传播部件具有近端和远端。远端连接到光纤，并且近端耦合到声波发生器。声波传播部件将纵向声波从近端传播到远端，激发光纤中的纵向声波。

8. 发明授权

US06233379B1 Acousto-optic filter 有权
公开(公告)号：US06233379B1
公开(公告)日：2001-05-15
申请号：US09425099
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： 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.

9. 发明授权

US06621968B1 Optical fiber for broadband optical devices and optical fiber devices using thereof 失效
标题翻译：用于宽带光学设备的光纤和使用它的光纤设备
公开(公告)号：US06621968B1
公开(公告)日：2003-09-16
申请号：US09601934
申请日：2000-12-19
申请人： Yeon Wan Koh , Jin Ha Kim , Bong Wan Lee , Seok Hyun Yun , Byoung Yoon Kim , Kyung Hwan Oh
发明人： Yeon Wan Koh , Jin Ha Kim , Bong Wan Lee , Seok Hyun Yun , Byoung Yoon Kim , Kyung Hwan Oh
IPC分类号： G02B616
CPC分类号： G02F1/0134 , G02B6/14 , G02B6/2793 , G02B6/29377
摘要： The present invention relates to an optical fiber having a normalized frequency applicable to a broadband optical device, and to a broadband, polarization-independent, low-loss optical fiber device made by using the aforementioned optical fiber. The optical fiber of the present invention has a normalized frequency value V, structural parameters of which including a core radius, a core refractive index and a cladding refractive index are adjusted to minimize the beat dispersion between first and second modes in a predetermined frequency range. Various optical fiber devices may be achieved if the aforementioned optical fiber is used along with acoustic wave generating means and a mode dropper or a mode selective coupler.
摘要翻译：本发明涉及具有适用于宽带光学装置的归一化频率的光纤，以及使用上述光纤制成的宽带，偏振无关的低损耗光纤装置。本发明的光纤具有归一化的频率值V，其结构参数包括芯半径，纤芯折射率和包层折射率，以使预定频率范围内的第一和第二模式之间的拍频差异最小化。如果上述光纤与声波产生装置以及模式滴管或模式选择耦合器一起使用，则可以实现各种光纤装置。

10. 发明授权

US06640024B1 Add-drop wavelength filter using mode discrimination couplers and tilted bragg gratings 失效
标题翻译：使用模式识别耦合器和倾斜布拉格光栅的分散波长滤波器
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。

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