公开(公告)号：US06560247B2

公开(公告)日：2003-05-06

申请号：US09993027

申请日：2001-11-05

Applicant: Do-Il Chang ,  Min-Yong Jeon ,  Kyong-Hon Kim

Inventor： Do-Il Chang ,  Min-Yong Jeon ,  Kyong-Hon Kim

IPC: H01S330

CPC classification number: H01S3/06754 ,  H01S3/0809 ,  H01S3/302

Abstract: A dual wavelength optical fiber laser includes a first and a second optical fibers which generating stimulated scattering by a pump light source; two short period optical fiber gratings that is resonating each of a first and a second wavelength light which are generated by the optical fibers and regulating reflecting characteristics according to the first and the second wavelengths; a WDM optical fiber coupler which inputs a pump wavelength to the optical fibers and outputs a laser operation wavelength; and an interference removing unit which is connected between the optical fibers and removes an interference in the first and the second wavelength of resonating.

公开(公告)号：US5828680A

公开(公告)日：1998-10-27

申请号：US712597

申请日：1996-09-13

Applicant: Kyong-Hon Kim ,  Seo-Yeon Park ,  Hak-Kyu Lee ,  Min-Yong Jeon

Inventor： Kyong-Hon Kim ,  Seo-Yeon Park ,  Hak-Kyu Lee ,  Min-Yong Jeon

IPC: H01S3/10 ,  H01S3/067 ,  H01S3/083 ,  H01S3/098 ,  H01S3/30

CPC classification number: H01S3/06791 ,  H01S3/082 ,  H01S3/1109 ,  H01S3/1112 ,  Y10S372/70

Abstract: A hybrid type passively and actively mode-locked laser scheme is disclosed, in which not only the capability of producing ultra-short optical pulses by the conventional passively mode-locked optical fiber laser scheme is utilized, but also the repetition rate variation capability and the optical pulse synchronization capability of the conventional actively mode-locked laser scheme are utilized. Consequently, all the advantages of the two conventional laser schemes are obtained in the present invention. Specifically, two loops are coupled together, and one of the two loops consists of a non-linear amplifying loop of the existing passively mode-locked scheme, while the other loop includes an optical modulator and an optical gain medium for the loop to perform the function of an actively mode-locked scheme. Further the other loop includes a time delay line so as to adjust the laser oscillation repetition rate. The ultra-short optical pulses of the present invention will be applied to high speed time division multiplexed optical communication system, high speed optical signal processors, and ultrafast optical phenomenon studies.

Abstract translation: 公开了一种混合型被动和主动锁模激光器方案，其中不仅利用常规被动锁模光纤激光器方案产生超短光脉冲的能力，而且重复频率变化能力和 利用传统的主动锁模激光方案的光脉冲同步能力。 因此，在本发明中获得了两种常规激光方案的所有优点。 具体地，两个环路耦合在一起，并且两个环路中的一个环路由现有被动锁模方案的非线性放大环路组成，而另一个环路包括用于环路的光学调制器和光学增益介质， 主动模式锁定方案的功能。 此外，另一个环路包括时间延迟线，以便调整激光振荡重复率。 本发明的超短光脉冲将被应用于高速时分复用光通信系统，高速光信号处理器和超快光学现象研究。

公开(公告)号：US5734665A

公开(公告)日：1998-03-31

申请号：US710525

申请日：1996-09-18

Applicant: Min-Yong Jeon ,  Wang-Yuhl Oh ,  Hak-Kyu Lee ,  Kyong-Hon Kim ,  El-Hang Lee

Inventor： Min-Yong Jeon ,  Wang-Yuhl Oh ,  Hak-Kyu Lee ,  Kyong-Hon Kim ,  El-Hang Lee

IPC: H01S3/00 ,  G02F1/35 ,  H01S3/067 ,  H01S3/30

CPC classification number: H01S3/067 ,  G02F1/3519

Abstract: An optical fiber laser is disclosed capable of generating an ultrashort pulse which has intensive energy and is stable against polarization by using a sagnac loop mirror and a Faraday rotator mirror, which includes a light pumping laser diode; an erbium doped fiber-added optical fiber; a wavelength division multiplier fiber coupler; a dispersion shifted fiber; and an optical fiber directional coupler; a nonlinear amplifier loop mirror; a second polarization controller; a linear mirror having a Faraday rotator mirror for rotating the polarization plane of a proceeding light wave; and a directional coupler being connected between the nonlinear amplifier loop mirror and the linear mirror.

Abstract translation: 公开了一种光纤激光器，其能够通过使用包括光泵浦激光二极管的sagnac环形反射镜和法拉第旋转镜来产生具有强力能量并且对极化稳定的超短脉冲; 掺铒光纤的光纤; 波分复用光纤耦合器; 色散位移光纤; 和光纤定向耦合器; 非线性放大器环路镜; 第二偏振控制器; 线性反射镜，其具有用于旋转正在进行的光波的偏振面的法拉第旋转镜; 以及在非线性放大器环路镜和线性反射镜之间连接的定向耦合器。

公开(公告)号：US06266458B1

公开(公告)日：2001-07-24

申请号：US09416904

申请日：1999-10-13

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

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

IPC: G02B600

CPC classification number: G02B6/2726 ,  G02B6/2773 ,  G02B6/29302 ,  G02B6/29352 ,  G02B6/29395

Abstract: 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.

Abstract translation: 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：US06256432B1

公开(公告)日：2001-07-03

申请号：US09382456

申请日：1999-08-25

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

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

IPC: G02B628

CPC classification number: H04B10/299 ,  H01S5/0657

Abstract: 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.

Abstract translation: 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：US5450507A

公开(公告)日：1995-09-12

申请号：US354867

申请日：1994-12-09

Applicant: Jong-Dug Shin ,  Min-Yong Jeon ,  El-Hang Lee

Inventor： Jong-Dug Shin ,  Min-Yong Jeon ,  El-Hang Lee

IPC: G02B6/00 ,  G02B6/28 ,  G02B6/30 ,  H04B10/00 ,  H04L12/70 ,  H04Q11/00

CPC classification number: G02B6/2861 ,  H04Q11/0003

Abstract: A fiber-optic address detector comprises fiber-optic delay lines on one surface of which a metal thin film is evaporated, the fiber-optic delay lines being connected in a melting state to fiber-optic couplers, wherein inputting address photonic signals are tapped by the inputting fiber-optic couplers, reflected by the metal thin films at the end portion of the fiber-optic delay line and then re-combined by the inputting fiber-optic coupler, whereby it can reduce the number of the fiber-optic coupler used in the conventional fiber-optic address detector to one half as well as obtain the same address detection effect.

Abstract translation: 光纤地址检测器包括在其表面上的金属薄膜被蒸发的光纤延迟线，光纤延迟线以熔化状态连接到光纤耦合器，其中输入地址光信号由 输入光纤耦合器，由光纤延迟线端部的金属薄膜反射，然后由输入光纤耦合器重新组合，从而可以减少使用的光纤耦合器的数量 在传统的光纤地址检测器中一半，以及获得相同的地址检测效果。