公开(公告)号：US06538804B1

公开(公告)日：2003-03-25

申请号：US09433455

申请日：1999-11-04

申请人： Kyong Hon Kim ,  Yong Gyu Choi ,  Hak Kyu Lee ,  Min Yong Jeon ,  Joon Tae Ahn ,  Dong Sung Lim ,  Ho Young Kim ,  Do Il Chang

发明人： Kyong Hon Kim ,  Yong Gyu Choi ,  Hak Kyu Lee ,  Min Yong Jeon ,  Joon Tae Ahn ,  Dong Sung Lim ,  Ho Young Kim ,  Do Il Chang

IPC分类号： H01S300

CPC分类号： G02F1/3132 ,  G02F1/225 ,  H01S5/4068 ,  H01S5/50

摘要： A planar waveguide-type optical amplifier switch is disclosed. The switch is developed with the purpose of solving the problems that the conventional waveguide-type optical switch, which has been being used in the optical communication technique, has an optical loss and thereby requires an external optical amplifier which makes the whole devices not suitable for forming an integrated compact device. The disclosed switch performs switching function from the refractive index change in the optical waveguides induced by electrical or optical controls as well as amplifying function of the optical signal, when it passes through the waveguides, from use of optical waveguides formed of a fluorescence emitting material with an optical pumping and a wavelength division multiplexing (WDM) optical waveguide-type coupler. The optical amplifier switch scheme, which provides a simultaneous optical switching and amplification in an optical waveguide form, allows the device fabricable in a compact integrated manner and more useful in practical applications. The optical amplifier switch in accordance with the present invention can replace the conventional optical switches of the prior art, and can promote technical development in the areas of high-capacity optical communication systems, massive optical signal processing, optical switching, optical computing, and so on.

摘要翻译： 公开了一种平面波导型光放大器开关。 开关是为了解决在光通信技术中使用的常规波导型光开关具有光损耗并因此需要外部光放大器的问题而开发的，这使得整个器件不适合于 形成集成的紧凑型装置。 所公开的开关从通过电光或光控制引起的光波导中的折射率变化执行切换功能，以及当光信号通过波导时放大功能，使用由荧光发射材料形成的光波导与 光泵浦和波分复用（WDM）光波导型耦合器。 提供光波导形式的同时光切换和放大的光放大器开关方案允许该器件以紧凑的集成方式可制造并且在实际应用中更有用。 根据本发明的光放大器开关可以代替现有技术的传统光开关，并且可以促进大容量光通信系统，大规模光信号处理，光交换，光计算等领域的技术发展。 上。

公开(公告)号：US6160627A

公开(公告)日：2000-12-12

申请号：US315998

申请日：1999-05-21

申请人： Joon Tae Ahn ,  Hak Kyu Lee ,  Min Yong Jeon ,  Dong Sung Lim ,  Kyong Hon Kim ,  El Hang Lee

发明人： Joon Tae Ahn ,  Hak Kyu Lee ,  Min Yong Jeon ,  Dong Sung Lim ,  Kyong Hon Kim ,  El Hang Lee

IPC分类号： G02B6/34 ,  G01B9/02

CPC分类号： G02B6/29353

摘要： An optical fiber Mach-Zehnder interferometer optical filter is disclosed. The filter includes a stabilization light source for varying a first wavelength of a light signal for stabilizing a Mach-Zehnder interferometer, first and second optical fiber couplers for receiving an optical signal from the stabilization light source and an optical signal of a second wavelength different from a first wavelength inputted from an input port and dividing into two parts having the same intensity for thereby forming a Mach-Zehnder interferometer, a polarization controller connected with one side of the first optical fiber coupler for controlling a polarization of the interfered light of the interferometer, first and second wavelength division multiplex optical couplers connected with the second optical fiber coupler for separately outputting a first wavelength optical signal and a second wavelength optical signal, an optical fiber phase modulator connected with the other side of the first optical fiber coupler for varying the length of the optical fiber in accordance with a fed-back phase difference, and a stabilization circuit for receiving two optical signals of the first wavelength from the first and second wavelength division multiplex optical couplers and feeding back the phase difference to the optical fiber phase modulator for thereby implementing a constant optical path difference of the interferometer.

摘要翻译： 公开了一种光纤马赫 - 曾德干涉仪滤光器。 滤光器包括用于改变用于稳定马赫 - 曾德干涉仪的光信号的第一波长的稳定光源，用于从稳定光源接收光信号的第一和第二光纤耦合器以及不同于 从输入端口输入的第一波长并分成具有相同强度的两个部分，从而形成马赫 - 策德尔干涉仪;偏振控制器，与第一光纤耦合器的一侧连接，用于控制干涉仪的干涉光的偏振 与第二光纤耦合器连接的第一和第二波分复用光耦合器，用于分别输出第一波长光信号和第二波长光信号;光纤相位调制器，与第一光纤耦合器的另一侧连接，用于改变 根据光纤的长度 反馈相位差，以及稳定电路，用于从第一和第二波分复用光耦合器接收第一波长的两个光信号，并将相位差反馈到光纤相位调制器，从而实现恒定的光程差 的干涉仪。

公开(公告)号：US06560251B1

公开(公告)日：2003-05-06

申请号：US09705582

申请日：2000-11-02

申请人： Min Yong Jeon ,  Hak Kyu Lee ,  Dong Sung Lim ,  Joon Tae Ahn ,  Do Il Chang ,  Kyong Hon Kim

发明人： Min Yong Jeon ,  Hak Kyu Lee ,  Dong Sung Lim ,  Joon Tae Ahn ,  Do Il Chang ,  Kyong Hon Kim

IPC分类号： H01S313

CPC分类号： H01S3/06791 ,  H01S3/06712 ,  H01S3/08059 ,  H01S3/108 ,  H01S3/1109 ,  H01S3/139

摘要： There is disclosed a mode-locked optical fiber laser stabilizing apparatus for stabilizing the length of the optical fiber laser resonator by feedbacking the optical signals to the laser resonator, in the direction where the signal reflected by the optical fiber loop mirror is detected as an error signal to minimize the signal, and method thereof. According to the present invention, a resonator stabilizing apparatus in an optical fiber laser includes a non-linear optical amplitude loop mirror (NALM) for non-linearly amplifying a laser pumped laser light, a linear loop mirror of a closed loop shape for confining the laser light sufficiently amplified by the non-linear optical amplitude loop mirror; a light isolator for proceeding the light confined by said linear loop mirror only in one direction, an optical coupler for detecting the light proceeding in the direction opposite to the light isolator by the linear loop mirror, the phase of which is varied in the non-linear optical amplitude loop mirror, and a piezo-electric transducer (PZT) for performing a signal processing for minimizing the amount of light proceeding in an opposite direction when the light detector detects the light proceeding in the opposite direction and feedbacking again the light to stabilize the light, the light detector is coupled by the linear loop mirror and the optical coupler.

摘要翻译： 公开了一种锁模光纤激光稳定装置，用于通过将光信号反馈到激光谐振器，使光纤环路反射的信号被检测为误差的方向来稳定光纤激光谐振器的长度 信号以使信号最小化，及其方法。 根据本发明，光纤激光器中的谐振器稳定装置包括用于非线性放大激光泵浦激光的非线性光学振幅反射镜（NALM），闭环形状的线性环形反射镜，用于限制 激光由非线性光学振幅回波镜充分放大; 光隔离器，用于仅在一个方向上进行由所述线性环形反射镜限制的光;光耦合器，用于检测通过线性环形反射镜在与光隔离器相反的方向上行进的光， 线性光学振幅回路镜和压电换能器（PZT），用于当光检测器检测到沿相反方向进行的光并且再次反馈光以稳定时进行信号处理以最小化在相反方向上进行的光量 光，光检测器通过线性环路镜和光耦合器耦合。

公开(公告)号：US06266145B1

公开(公告)日：2001-07-24

申请号：US09441532

申请日：1999-11-16

申请人： Hak Kyu Lee ,  Dong Sung Lim ,  Min Yong Jeon ,  Joon Tae Ahn ,  Kyong Hon Kim

发明人： Hak Kyu Lee ,  Dong Sung Lim ,  Min Yong Jeon ,  Joon Tae Ahn ,  Kyong Hon Kim

IPC分类号： G01B902

CPC分类号： G01J11/00

摘要： An apparatus for measurement of an optical pulse shape intended to measure the temporal waveform of an ultrashort single optical pulse is disclosed. The present invention comprises a linearly chirped supercontinuum light source that is synchronized with an optical pulse to be measured; a nonlinear optical interferometer to transform the temporal waveform of an incident optical pulse into a spectrum using an incident light from said supercontinuum light source; and an optical spectrum analyzer to measure the wavelength of the light passing through the nonlinear interferometer so that it can measure the temporal waveform of a single optical pulse. The present invention employs the method that transforms the temporal waveform of an incident optical pulse into a spectrum and measures the wavelength using a linearly chirped supercontinuum light source, a nonlinear optical interferometer, and an optical spectrum analyzer. The present invention provides an apparatus for measurement of an optical pulse shape that is able to measure the waveform not with the repeated measurements but with a single shot measurement.

摘要翻译： 公开了一种用于测量旨在测量超短单个光脉冲的时间波形的光脉冲形状的装置。 本发明包括与要测量的光脉冲同步的线性啁啾超连续谱光源; 使用来自所述超连续光源的入射光将入射光脉冲的时间波形变换为光谱的非线性光学干涉仪; 以及光谱分析仪来测量穿过非线性干涉仪的光的波长，以便它可以测量单个光脉冲的时间波形。 本发明采用将入射光脉冲的时间波形变换为光谱并使用线性啁啾超连续光源，非线性光学干涉仪和光谱分析仪测量波长的方法。 本发明提供了一种用于测量光脉冲形状的装置，该装置能够测量不是重复测量而不是单次测量的波形。

公开(公告)号：US06266458B1

公开(公告)日：2001-07-24

申请号：US09416904

申请日：1999-10-13

申请人： Joon Tae Ahn ,  Hak Kyu Lee ,  Min-Yong Jeon ,  Dong Sung Lim ,  Kyong-Hon Kim

发明人： Joon Tae Ahn ,  Hak Kyu Lee ,  Min-Yong Jeon ,  Dong Sung Lim ,  Kyong-Hon Kim

IPC分类号： G02B600

CPC分类号： G02B6/2726 ,  G02B6/2773 ,  G02B6/29302 ,  G02B6/29352 ,  G02B6/29395

摘要： The present invention provides a tunable optical filtering system using fiber-optic polarimetric interferometer. The tunable optical filtering system using fiber-optic polarimetric interferometer in accordance with the present invention comprises a stabilization light source, a first polarization beam splitter, a first optical fiber node, a number of polarization maintaining optical fibers, a phase modulator, a stabilization electronics, a second optical fiber node, a second polarization beam splitter, and two wavelength division optical multiplexers. The stabilization light source supplies stabilization light. The first polarization beam splitter polarizes the stabilization light and the input light to be filtered and generates polarized light. The first optical fiber node connects the output of the first polarization beam splitter with polarization maintaining fibers with the angle of 45 degree between their birefringent axes and splits the polarized light. The number of polarization maintaining optical fibers carries the split light by the first optical fiber node. The phase modulator maintains phase difference between two birefringent axes of the polarization maintaining fibers. The stabilization electronics supply feedback signal to the phase modulator. The second optical fiber node connects the polarization maintaining fibers with the input of second polarization beam splitter with the angle of 45 degree between their birefringent axes, receives split light by said first optical fiber node, and generates interference signals. The second polarization beam splitter divides the interference signals into output signals by polarization axes. The wavelength division optical multiplexers divide the output signals into signals for the stabilization electronics and filtered signals by wavelengths.

摘要翻译： 本发明提供一种使用光纤偏振干涉仪的可调谐光学滤波系统。 根据本发明的使用光纤偏振干涉仪的可调谐光学滤波系统包括稳定光源，第一偏振分束器，第一光纤节点，多个保偏光纤，相位调制器，稳定电子器件 ，第二光纤节点，第二偏振分束器和两个波分复用器。 稳定光源提供稳定光源。 第一偏振分束器使稳定光和要滤波的输入光偏振，产生偏振光。 第一光纤节点将第一偏振分束器的输出端与偏振维持光纤以双折射轴之间的角度45度连接并分离偏振光。 偏振维持光纤的数量由第一光纤节点承载分离光。 相位调制器保持偏振保持光纤的两个双折射轴之间的相位差。 稳定电路向相位调制器提供反馈信号。 第二光纤节点将偏振保持光纤与第二偏振光束分离器的输入端在双折射轴之间以45度的角度连接，由所述第一光纤节点接收分束光，并产生干涉信号。 第二偏振分束器通过偏振轴将干扰信号分成输出信号。 波分复用器将输出信号划分为稳定电路的信号和波长的滤波信号。

公开(公告)号：US6101027A

公开(公告)日：2000-08-08

申请号：US145545

申请日：1998-09-02

申请人： Hak Kyu Lee ,  Kyong Hon Kim ,  Joon Tae Ahn ,  Min Yong Jeon ,  Dong Sung Lim ,  Ho Young Kim

发明人： Hak Kyu Lee ,  Kyong Hon Kim ,  Joon Tae Ahn ,  Min Yong Jeon ,  Dong Sung Lim ,  Ho Young Kim

IPC分类号： G02F2/00 ,  H01S5/062 ,  H01S5/50 ,  H01S3/00

CPC分类号： G02F2/004 ,  H01S5/50

摘要： The present invention discloses an all-optical wavelength converter using a semiconductor optical amplifier and a polarization interferometer. The all-optical wavelength converter using a semiconductor optical amplifier and a polarization interferometer including a wavelength converter which modulates a probe light into a inverting waveform to a signal light and outputs the modulated light by using cross gain modulation, a phenomenon that occurs while the signal light and the probe light pass together through an optical splitter/combiner, a semiconductor optical amplifier and a filter at the same time, a polarization interferometer which makes the probe light outputted from the wavelength converter and having the inverting waveform to the signal light undergo a double-refraction so that a predetermined time split occurs on it and provides a non-inverting wavelength conversion and suppresses the slow XGM components in the converted outputs due to the slow carrier recombination time.

摘要翻译： 本发明公开了一种使用半导体光放大器和偏振干涉仪的全光波长转换器。 使用半导体光放大器的全光波长转换器和包括波长转换器的偏振干涉仪，其将探测光调制为信号光的反相波形，并通过使用交叉增益调制输出调制光，该信号在信号 光和探测光同时通过光分路器/组合器，半导体光放大器和滤波器一起通过，使得从波长转换器输出并且具有对信号光的反相波形的探测光的偏振干涉仪经历 双折射使得在其上发生预定的时间分割并且提供非反相波长转换，并且由于载流子复合时间较慢而抑制转换输出中的慢XGM分量。

公开(公告)号：US06256432B1

公开(公告)日：2001-07-03

申请号：US09382456

申请日：1999-08-25

申请人： Min-Yong Jeon ,  Hak Kyu Lee ,  Dong Sung Lim ,  Joon-Tae Ahn ,  Kyoung-Hon Kim

发明人： Min-Yong Jeon ,  Hak Kyu Lee ,  Dong Sung Lim ,  Joon-Tae Ahn ,  Kyoung-Hon Kim

IPC分类号： G02B628

CPC分类号： H04B10/299 ,  H01S5/0657

摘要： The present invention provides a demultiplexer for generating a constant four-wave-mixing beam without regard to an input polarization state using a dispersion-shifted fiber that is a nonlinear material with high refractive index. A number of parts in conventional demultiplexer implementations, which are sensitive to input polarization state has been replaced with optical fibers of high polarization mode dispersion.

摘要翻译： 本发明提供一种解复用器，用于使用作为具有高折射率的非线性材料的色散位移光纤而不考虑输入偏振状态来产生恒定的四波混频。 对输入偏振状态敏感的常规解复用器实现中的许多部分已被高偏振模色散的光纤代替。

公开(公告)号：US6097861A

公开(公告)日：2000-08-01

申请号：US112373

申请日：1998-07-09

申请人： Kyong Hon Kim ,  Hak Kyu Lee ,  Joon Tae Ahn ,  El Hang Lee

发明人： Kyong Hon Kim ,  Hak Kyu Lee ,  Joon Tae Ahn ,  El Hang Lee

IPC分类号： G02B5/20 ,  G02B6/34 ,  G02B6/26

CPC分类号： G02B6/2932 ,  G02B6/29322 ,  G02B6/29389

摘要： An improved multi-wavelength channel transmission filter, by which it is possible to selectively and simultaneously separate multiple wavelength channel signals without any optical time delays among, different wavelength channels, includes one optical circulator with four terminal ports, one polarization beam splitter (PBS), one half-wave plate, and a number of Brag, gratings formed in an optical waveguide for reflection of multi-wavelength channels by combining the wavelength characteristic of each Bragg grating which is determined in accordance with the grating structure.

摘要翻译： 一种改进的多波长信道传输滤波器，其中可以选择性地并且同时地分离不同波长信道之间没有任何光时延的多个波长信道信号，包括一个具有四个终端端口的光循环器，一个偏振分束器（PBS） ，一个半波片和多个Brag光栅，形成在用于反射多波长通道的光波导中，通过组合根据光栅结构确定的每个布拉格光栅的波长特性。

公开(公告)号：US6055345A

公开(公告)日：2000-04-25

申请号：US132432

申请日：1998-08-11

申请人： Joon Tae Ahn ,  Hak Kyu Lee ,  Kyong Hon Kim ,  El Hang Lee

发明人： Joon Tae Ahn ,  Hak Kyu Lee ,  Kyong Hon Kim ,  El Hang Lee

IPC分类号： G02F1/1335 ,  G02B6/34 ,  G02B6/28

CPC分类号： G02B6/29352

摘要： The present invention provides a multi-wavelength channel transmission-type optical filter that is capable of more narrowing the bandwidth of transmission wavelength in a transmission type optical filter using Mach-Zehnder interferometer. The multi-wavelength channel transmission-type optical filter including a first optical fiber coupler for dividing a broadband light source into two lights, an optical fiber length and optical fiber length controlling unit for controlling the gap of transmission wavelength in which each receives as inputs the above lights divided by the first optical fiber coupler, a second optical fiber coupler for outputting each of the above lights, which are passed through the optical fiber length controlling unit and the optical fiber length, and an optical isolator for narrowing the width of transmission wavelength by connecting the two outputs of the second optical fiber coupler, thereby improving a wavelength selecting characteristics.

摘要翻译： 本发明提供一种多波长信道传输型滤光器，其能够使用马赫 - 策德尔（Mach-Zehnder）干涉仪在透射型光学滤波器中使传输波长的带宽变窄。 多波长通道透射型光学滤波器，包括用于将宽带光源分为两个光的第一光纤耦合器，用于控制传输波长的间隙的光纤长度和光纤长度控制单元， 上述光由第一光纤耦合器分开，第二光纤耦合器，用于输出通过光纤长度控制单元和光纤长度的上述每个光;以及光隔离器，用于缩小透射波长的宽度 通过连接第二光纤耦合器的两个输出，从而提高波长选择特性。

公开(公告)号：US06426965B1

公开(公告)日：2002-07-30

申请号：US09498457

申请日：2000-02-04

申请人： Do Il Chang ,  Min Yong Jeon ,  Hak Kyu Lee ,  Kyong Hon Kim

发明人： Do Il Chang ,  Min Yong Jeon ,  Hak Kyu Lee ,  Kyong Hon Kim

IPC分类号： H01S330

CPC分类号： H01S3/302

摘要： An optical fiber cascaded Raman laser scheme is provided. An optical fiber cascaded Raman laser scheme in accordance with an embodiment of the present invention includes a pump light source, an optical fiber, a wavelength division multiplexing optical fiber combiner, another wavelength division multiplexing optical fiber combiner, a short period optical fiber bragg grating, a long period bragg grating, first means, and second means. The pump light source generates pump light. The optical fiber causes Raman scattering regarding the optical pump light as nonlinear material. The wavelength division multiplexing optical fiber combiner forms intra cavity regarding light of second order stoke frequency shifted wavelength. The light is stoke frequency shifted by Raman scattering of the optical fiber. The another wavelength division multiplexing optical fiber combiner forms intra cavity regarding light of first and third order stoke frequency shifted wavelength. The light is stoke frequency shifted by Raman scattering of the optical fiber. The short period optical fiber bragg grating selects and reflects fourth stoke frequency shifted wavelength of output wavelength in intra cavity. The intra cavity is formed by the wavelength division multiplexing optical fiber combiner. The long period bragg grating causes loss on fifth order stoke frequency shifted wavelength and prevents oscillation. The fifth order is next order of output wavelength of the intra cavity. The first means passes pump light emitted from the pump light source and reflects light of fourth order stoke frequency shifted output wavelength. The first means is connected between the pump light source and the wavelength division multiplexing optical fiber combiner. The second means reflects pump light emitted from the pump light source and passing light of output wavelength.

摘要翻译： 提供光纤级联拉曼激光器方案。 根据本发明实施例的光纤级联拉曼激光器方案包括泵浦光源，光纤，波分复用光纤组合器，另一波分复用光纤组合器，短周期光纤布拉格光栅， 长周期布拉格光栅，第一装置和第二装置。 泵浦光源产生泵浦光。 光纤引起关于光泵浦光的拉曼散射作为非线性材料。 波分复用光纤组合器形成有关二阶振荡频移波长的光的腔内。 光线被光纤的拉曼散射所驱动。 另一个波分多路复用光纤组合器关于第一和第三阶振荡频移波长的光形成腔内。 光线被光纤的拉曼散射所驱动。 短周期光纤布拉格光栅选择并反映了腔内输出波长的第四发射频移波长。 腔内由波分复用光纤组合器形成。 长周期布拉格光栅引起第五阶振荡频移波长的损失，防止振荡。 第五级是腔内输出波长的下一个顺序。 第一种方法是通过泵浦光源发射的泵浦光，并反射出四阶波长的输出波长的光。 第一装置连接在泵浦光源与波分复用光纤组合器之间。 第二装置反映从泵浦光源发射的泵浦光并传出输出波长的光。