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21. 发明授权

US06459846B1 Complex rare-earths doped optical waveguide 失效
标题翻译：复杂稀土掺杂光波导
公开(公告)号：US06459846B1
公开(公告)日：2002-10-01
申请号：US09498321
申请日：2000-02-04
申请人： Yong Gyu Choi , Dong Sung Lim , Kyong Hon Kim , Hak Kyu Lee
发明人： Yong Gyu Choi , Dong Sung Lim , Kyong Hon Kim , Hak Kyu Lee
IPC分类号： G02B600
CPC分类号： H01S3/06708 , H01S3/06716
摘要： The present invention relates to a complex rare-earths doped optical waveguide. In particular, the complex rare-earths doped optical waveguide in accordance with an embodiment of the present invention is for modifying emission spectrum of erbium that is able to obtain gain from shorter wavelength than 1530 nm. A complex rare-earths doped optical wavelength is provided. The complex rare-earths doped optical waveguide in accordence with an embodiment of the present invention includes clad and core. The core is doped with erbium (Er) ion. The internal or surface of the core is doped with at least one complex rare-earth ions. The internal and the surface of the core is distanced by certain length from center of the core.
摘要翻译：本发明涉及一种复合稀土掺杂光波导。特别地，根据本发明实施例的复合稀土掺杂光波导用于修改能够从比1530nm的较短波长获得增益的铒的发射光谱。提供了复杂的稀土掺杂光波长。根据本发明的实施例的复合稀土掺杂光波导包括包层和芯。核心掺杂有铒（Er）离子。芯的内部或表面掺杂有至少一种复合稀土离子。芯的内部和表面与芯的中心距离一定长度。

22. 发明授权

US6097861A Multi-wavelength channel transmission filter 失效
标题翻译：多波长通道滤波器
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。

23. 发明授权

US08040523B2 Measurement method of chromatic dispersion of optical beam waveguide using interference fringe measurement system 有权
标题翻译：使用干涉条纹测量系统的光束波导的色散测量方法
公开(公告)号：US08040523B2
公开(公告)日：2011-10-18
申请号：US12511803
申请日：2009-07-29
申请人： Kyong Hon Kim , Seunghwan Kim , Seounghun Lee , Elhang Lee
发明人： Kyong Hon Kim , Seunghwan Kim , Seounghun Lee , Elhang Lee
IPC分类号： G01B9/02 , G01J3/45 , G01N21/00
CPC分类号： G01M11/335 , G01M11/331 , G01M11/338
摘要： The present invention relates to a measurement method of the chromatic dispersion of an optical waveguide using an optical interferometer with a broadband multi-wavelength light source and an optical spectrum analyzing apparatus, wherein one arm, called “reference arm” of the interferometer's two arms has an adjustable air spacing and the other arm, called “sample arm” can contain said optical waveguide to be measured, and including the following measurement and analysis steps: measuring interference spectra of the optical beam output exiting from the said interferometer with an optical spectrum analyzing apparatus when said optical waveguide is connected to said sample arm, and when said optical waveguide is not connected to said sample arm respectively; by adjusting the reference arm length for appearance of clear interference patterns; converting the wavelength-domain interference spectra into frequency-domain interference spectra and calculating phase difference values of the interference peaks of one of the spectra from a predetermined reference peak as a function of the frequency change by counting the interference peak (or valley) points; finding a Taylor series curve fit function for each set of the phase difference value data corresponding to each of the two interference spectra; and calculating a chromatic dispersion coefficient of the optical waveguide by using the coefficients of the Taylor series curve fit functions.
摘要翻译：本发明涉及使用具有宽带多波长光源的光学干涉仪和光谱分析装置的光波导的色散的测量方法，其中干涉仪的两个臂的称为“参考臂”的一个臂具有称为“样品臂”的可调节空气间距可以包含待测量的所述光波导，并且包括以下测量和分析步骤：测量从所述干涉仪离开的光束输出的干涉光谱与光谱分析当所述光波导连接到所述样品臂时，并且当所述光波导分别不连接到所述样品臂时，通过调整参考臂的长度来显现干扰图形的清晰度; 将波长域干涉光谱转换成频域干涉光谱，并通过对干扰峰（或谷）点进行计数，计算作为频率变化的函数的来自预定参考峰的一个频谱的干扰峰的相位差值; 针对与两个干涉光谱中的每一个相对应的每组相位差值数据，找到泰勒级数曲线拟合函数; 以及通过使用泰勒级数曲线拟合函数的系数来计算光波导的色散系数。

24. 发明授权

US07099072B2 Direct optical modulation type wavelength converter 失效
公开(公告)号：US07099072B2
公开(公告)日：2006-08-29
申请号：US10246104
申请日：2002-09-18
申请人： Joon Tae Ahn , Jong Moo Lee , Kyong Hon Kim
发明人： Joon Tae Ahn , Jong Moo Lee , Kyong Hon Kim
IPC分类号： G02F1/35 , H01S3/00
CPC分类号： H01S5/125 , H01S5/0601 , H01S5/1014 , H01S5/1071 , H01S5/146 , H01S5/147 , H01S5/5063 , H01S5/5072 , H01S5/509
摘要： A direct optical modulation (DOM) type wavelength converter is provided. The provided wavelength converter is a gain-clamped semiconductor optical amplifier (GC-SOA), which does not require a continuous wave (CW) signal, or a semiconductor laser in itself, and reduces a coupling loss between the GC-SOA or the semiconductor laser and an optical fiber while improving an emission threshold of a laser. Therefore, the provided wavelength converter converts a wavelength of an input signal beam having a low intensity by controlling the intensity of the input signal.

25. 发明授权

US07065108B2 Method of wavelength tuning in a semiconductor tunable laser 有权
标题翻译：半导体可调激光器中的波长调谐方法
公开(公告)号：US07065108B2
公开(公告)日：2006-06-20
申请号：US10744457
申请日：2003-12-22
申请人： Sahng Gi Park , Moon Ho Park , Ji Myon Lee , Su Hwan Oh , Kyong Hon Kim
发明人： Sahng Gi Park , Moon Ho Park , Ji Myon Lee , Su Hwan Oh , Kyong Hon Kim
IPC分类号： H01S3/10
CPC分类号： H01S5/10 , G02B6/12004 , G02B6/124 , H01S5/026 , H01S5/028 , H01S5/0425 , H01S5/0607 , H01S5/06255 , H01S5/0654 , H01S5/101 , H01S5/1025 , H01S5/1082 , H01S5/12 , H01S5/1212 , H01S5/1237 , H01S5/1243 , H01S5/125 , H01S5/14
摘要： A tunable semiconductor laser including a Fabry-Perot filter and an electrode array is disclosed. The propagation direction of the light beam in the cavity can be consecutively shifted applying electric field or current to the electrode and tuning can consecutively performed over the wide wavelength band by the consecutive shift of the angle of the intra cavity laser beam.
摘要翻译：公开了一种包括法布里 - 珀罗滤波器和电极阵列的可调谐半导体激光器。空腔中的光束的传播方向可以连续地向电极施加电场或电流，并且可以通过腔内激光束的角度的连续移动在宽波长带上连续执行调谐。

26. 发明授权

US06490082B2 Optical amplifier 失效
公开(公告)号：US06490082B2
公开(公告)日：2002-12-03
申请号：US09728163
申请日：2000-12-02
申请人： Yong Gyu Choi , Kyong Hon Kim
发明人： Yong Gyu Choi , Kyong Hon Kim
IPC分类号： H04B1012
CPC分类号： C03C3/321 , H01S3/06754 , H01S3/1613 , H01S3/17 , H01S3/172 , H01S2302/00
摘要： An optical amplifier of the present invention is implemented by using a low phonon energy glass doped with praseodymium ions (Pr3+), whereby a wavelength of 1.6 &mgr;m band can be used for an optical transmission. The optical amplifier for amplifying an optical signal includes a low phonon energy optical medium doped with praseodymium ions (Pr3+) for utilizing as a gain medium to the optical signal, and a pumping means for pumping the low phonon energy optical medium, thereby to obtain an amplified optical signal.

27. 发明授权

US06404788B1 Cr and Yb codoped optical material systems for enhanced infrared fluorescence emission and their application schemes 失效
标题翻译： Cr和Yb共掺的光学材料系统，用于增强红外荧光发射及其应用方案
公开(公告)号：US06404788B1
公开(公告)日：2002-06-11
申请号：US09373968
申请日：1999-08-13
申请人： Yong Gyu Choi , Kyong Hon Kim , Hak Kyu Lee , Dong Sung Lim
发明人： Yong Gyu Choi , Kyong Hon Kim , Hak Kyu Lee , Dong Sung Lim
IPC分类号： H01S314
CPC分类号： H01S3/16 , H01S3/06716 , H01S3/1618 , H01S3/1623
摘要： Provided are complex optical material that trivalent ytterbium ion is codoped into single crystalline, poly crystalline or amorphous material containing tetravalent chromium ion or trivalent vanadium ion as an active medium, and a using method of the material. In application of the material to solid-state lasers, optical fiber amplifiers and the likes, when excitation occurs in the 980 nm wavelength band in which absorption strongly occurs at the ytterbium ion with avoiding the wavelength range of 600˜800 nm in which the excited-state absorption occurs at the chromium ion, the energy is transferred from the ytterbium ion to the chromium ion to emit fluorescence in the range of 1200˜1600 nm wavelength. Accordingly, the present invention is to solve the problem of the excitation efficiency decrease of the tetravalent chromium ion due to the excited-state absorption and to enhance the fluorescence emission intensity.
摘要翻译：提供三价镱离子共掺杂成含有四价铬离子或三价钒离子作为活性介质的单晶，多晶或无定形材料的复合光学材料，以及该材料的使用方法。在将材料应用于固态激光器，光纤放大器等中，当激发发生在980nm波长带中，其中在镱离子处强烈地发生吸收，避免了600〜800nm的波长范围，其中激发 - 在铬离子处发生 - 状态吸收，能量从镱离子转移到铬离子，以在1200〜1600nm波长范围内发射荧光。因此，本发明是为了解决由激发态吸收引起的四价铬离子的激发效率降低的问题，提高荧光发光强度。

28. 发明授权

US6055345A Multi-wavelength channel transmission-type optical filter 失效
标题翻译：多波长通道传输型滤光片
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。

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