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    • 2. 发明授权
    • 광-광 변조 장치 및 광-광 변조 방법
    • 光调制装置和光调制方法
    • KR101355812B1
    • 2014-01-28
    • KR1020120088711
    • 2012-08-14
    • 한국표준과학연구원
    • 임선도이동훈
    • G02B6/12
    • G02B27/283G02F1/3523G02F1/3544G02F1/3558G02F2/004
    • The present invention provides an optical modulation device and an optical modulation method. The optical modulation device includes: an optical modulation unit which includes a first substrate made of nonlinear medium ferroelectric crystals and a second substrate stacked on the first substrate and made of nonlinear medium ferroelectric crystals including a periodic polarization reversal pattern; a first laser which reaches the first substrate in a direction crossing the periodic polarization reversal pattern around the boundary between the first substrate and the second surface, absorbs a first laser beam in the first substrate along the progress direction, and forms an optical waveguide by arousing refractive index difference from the surroundings by heating the first substrate along the path of the first laser beam; a signal source which provides signal light progressing along the optical waveguide; and a second laser which provides a second laser beam in a pulse form progressing along the optical waveguide. The second laser beam applies a DC electric field to the polarization reversal pattern to make periodic refractive index difference along the optical waveguide and modulates the signal light from a basic mode to a higher mode. [Reference numerals] (AA) Higher mode; (BB) Basic mode
    • 本发明提供一种光调制装置和光调制方法。 光调制装置包括:光调制单元,其包括由非线性介质铁电晶体构成的第一基板和堆叠在第一基板上的由包括周期性极化反转图案的非线性介质铁电晶体制成的第二基板; 在与第一基板和第二表面之间的边界周围的周期性偏振反转图案的交叉方向上到达第一基板的第一激光器沿着前进方向吸收第一基板中的第一激光束,并且通过激励形成光波导 通过沿着第一激光束的路径加热第一基板而与周围环境的折射率差; 信号源,其提供沿着光波导进行的信号光; 以及第二激光器,其提供沿着光波导进行的脉冲形式的第二激光束。 第二激光束将DC电场施加到偏振反转图案,以沿着光波导产生周期性折射率差,并将信号光从基本模式调制到较高模式。 (附图标记)(AA)较高模式; (BB)基本模式
    • 3. 发明授权
    • 반도체 광 증폭기의 XPM 현상을 이용한 마하 젠더간섭계형 파장 변환기에서 최대 소광비를 출력하는 위상최적화 장치 및 방법
    • 使用半导体光放大器的相位调制外观输出Mach-wehnder干涉仪波长转换器中的最大消光比的相位优化装置和方法
    • KR100546376B1
    • 2006-01-26
    • KR1020030062174
    • 2003-09-05
    • 삼성전자주식회사
    • 김주엽한상국
    • H04Q3/52
    • G02F2/004G02B2006/12142G02F1/0123G02F1/225G02F2001/212G02F2002/006H04B10/508
    • 본 발명은 파장 변환기의 동작 장치 및 방법에 관한 것으로, 보다 상세하게는 반도체 광 증폭기의 XPM 현상을 이용한 마하 젠더 간섭계형 파장 변환기에서 출력되는 광신호의 일부분을 궤환하여 양 암 사이를 최적의 위상차로 유지시킴으로써 최대 소광비를 출력하는 장치 및 방법에 관한 것이다. 반도체 광 증폭기의 XPM 현상을 이용한 파장 변환기에서 최대 소광비를 출력하는 위상 최적화 장치는 소정의 전류에 의해 동작하며, 입력되는 펌프 및 프로브 광 신호를 증폭하는 제1 SOA를 구비한 제1 암(Arm), 소정의 전류에 의해 동작하며, 입력되는 상기 프로브 광신호를 증폭하는 제2 SOA 및 위상 제어신호에 의해 증폭된 광 신호의 출력 위상을 조정하는 π 위상 시프터를 구비한 제2 암(Arm), 상기1 암(Arm) 및 제2 암(Arm)으로부터 출력되는 간섭 및 합성된 광 신호들을 소정 광(Optical) 대역에서 필터링 하여 상기 펌프 광 신호와 동일하게 변조된 프로브 광 신호만을 출력하는 광 대역 통과 필터 및 상기 광 대역 통과 필터 출력 신호의 일부를 궤환하여 상기 제1 암 및 제2 암의 출력 위상차에 따라 상기 광 대역 통과 필터의 광 파워 출력이 증가 또는 감소되도록 상기 위상차를 변환시키는 위상 제어신호를 상기 제2 암(Arm)의 π 위상 시프터로 출력하는 위상 조정부를 포함한다. 본 발명에 따르면, 반도체 광 증폭기의 XPM 현상을 이용한 마하 젠더 간섭계형 파장 변환기에서 출력되는 광신호의 일부분을 궤환하여 양 암 사이를 최적의 위상차로 유지시킴으로써 최대 소광비를 출력하여 최소의 BER을 유지할 수 있는 효과를 창출한다.
    • 4. 发明公开
    • 높은 소광비 및 넓은 입력 다이너믹 영역을 갖는 XGM방식의 광 파장변환장치
    • 具有高延伸比和宽输入动态范围的XGM型光波长转换装置
    • KR1020040040708A
    • 2004-05-13
    • KR1020020068907
    • 2002-11-07
    • 한국전자통신연구원
    • 방준학고제수
    • G02F2/02
    • G02F2/004G02F1/3536G02F2002/006H01S5/5054
    • PURPOSE: An optical wavelength conversion apparatus of an XGM(Cross Grain Modulation) type having a high extension ratio and a wide input dynamic area is provided to have a high extension ratio by making a probe light to be affected with a gain modulation by using two SOA(Semiconductor Optical Amplifier)s. CONSTITUTION: A continuous oscillation(CW) light source is arranged at the front and back ends(two SOAs(215,221)). The probe light affected by a pump light(213) of the front end in the first SOA(215) with a cross gain modulation is affected by the second SOA(221) of the back end with the cross gain modulation one more. A first control device(230) and a second control device(240) sense the intensity of light of the first pump light(213) and second pump light(204) inputted from the first and second SOAs(215,221). According to the intensity of each pump light, the probe light inputted to the first and second SOAs(215,221) is controlled, thereby improving the input dynamic area widely.
    • 目的:提供具有高扩展比和宽输入动态面积的XGM(十字晶格调制)型的光波长转换装置,通过使用两个方式使探测光受到增益调制的影响而具有高扩展比 SOA(半导体光放大器) 构成:连续振荡(CW)光源布置在前端和后端(两个SOA(215,221))。 受交叉增益调制的第一SOA(215)中的前端的泵浦光(213)的探测光受到具有交叉增益调制的后端的第二SOA(221)的影响。 第一控制装置(230)和第二控制装置(240)感测从第一和第二SOAs(215,221)输入的第一泵浦光(213)和第二泵浦光(204)的光强度。 根据每个泵浦光的强度,控制输入到第一和第二SOAs(215,221)的探测光,从而大大改善输入动态范围。
    • 5. 发明公开
    • 파장가변 전광 NOR 논리소자의 구현방법
    • 用于实现波长可变的全光学或非逻辑元件的方法
    • KR1020040036805A
    • 2004-05-03
    • KR1020020065155
    • 2002-10-24
    • 한국과학기술연구원
    • 김영일윤태훈이석우덕하김선호김재헌변영태전영민박민철
    • G02F3/00
    • G02F3/00G02F2/004
    • PURPOSE: A method for realizing a wavelength variable all-optic NOR logic element is provided to apply a forward bias current to an EAM(Electro-Absorption Modulator) area of an EMILD(Electro-absorption Modulation Integrated Laser Diode) element, and to induce gain saturation, thereby realizing an all-optic NOR logic element. CONSTITUTION: An EMILD element(10) receives an RF signal from an EAM area(11), modulates a CW optical signal generated from a DFB-LD area(12), and makes a necessary signal. An electrical isolation area(15) is disposed between the EAM area(11) and the DFB-LD area(12) in 20 micrometers. An AR(Anti Reflection) coating portion(13) is formed by AR-coating a front side, and an HR(High Reflection) coating portion(14) is formed by HR-coating a rear side, such that light is incident or emitted on the front side only.
    • 目的:提供一种实现波长可变全光NOR逻辑元件的方法,用于向EMILD(电吸收式调制集成激光二极管)元件的EAM(电吸收调制器)区域施加正向偏置电流,并诱导 增益饱和,从而实现全光NOR逻辑元件。 构成:EMILD元件(10)从EAM区域(11)接收RF信号,调制从DFB-LD区域(12)产生的CW光信号,并且产生必要的信号。 电隔离区域(15)以20微米的形式设置在EAM区域(11)和DFB-LD区域(12)之间。 通过AR正面涂覆AR(防反射)涂布部分(13),HR(高反射)涂层部分(HR)通过HR涂覆后侧形成,使得光线入射或发射 只在前方
    • 7. 发明授权
    • 광굴절 물질을 이용한 공간 광 변조 장치 및 방법
    • 空间光调制器和使用光电材料调制空间光的方法
    • KR100668080B1
    • 2007-01-11
    • KR1020050077379
    • 2005-08-23
    • 한양대학교 산학협력단
    • 황의중김낙중
    • G02F1/01
    • G02F1/0136G02F2/004G02F2203/12
    • An apparatus and a method for modulating a spatial light are provided to use no liquid crystal and complicated circuits, simplify the manufacture of the apparatus, and facilitate the measure of an optical image. A light refracting panel(30) contains a light refracting material. A light source unit includes a plurality of lights(10,20) having mutual interference, wherein the light source unit forms a light refracting grating on the light refracting panel. A polarizing divider(60) detects the light including a predetermined image, of which a wavelength is converted through the light refracting panel. The image including the predetermined image mutually interferes with the plurality of lights.
    • 提供用于调制空间光的装置和方法,以便不使用液晶和复杂电路,简化了装置的制造,并且便于测量光学图像。 光折射板(30)包含光折射材料。 光源单元包括具有相互干涉的多个光(10,20),其中光源单元在光折射面板上形成光折射光栅。 偏振分割器(60)检测包括通过光折射面板转换波长的预定图像的光。 包括预定图像的图像与多个光相互干扰。
    • 9. 发明公开
    • 신호 분리형 광 파장 변환기
    • 信号分离型光波导转换器
    • KR1020030062075A
    • 2003-07-23
    • KR1020020002496
    • 2002-01-16
    • 한국전자통신연구원
    • 김종회오광룡백용순김현수김강호
    • G02B6/125
    • G02F2/004G02B6/2813G02F2001/212G02F2001/217H01S5/509
    • PURPOSE: A signal separation type optical wavelength converter is provided to output a wavelength-converted optical signal without a filter by separating the wavelength-converted optical signal from output optical signals. CONSTITUTION: A signal separation type optical wavelength converter includes the first input terminal(34), the second input terminal(35), an optical amplification modulator(31), the first output terminal(36), and the second output terminal(37). The first input terminal is used for receiving a continuous light source. The second input terminal is used for receiving optical signals. The optical amplification modulator is used for deciding the output terminal according to the input terminal and varying the intensity the continuous light source according to the intensity of the optical signal. The first output terminal is used for outputting the optical signals having the converted wavelength. The second output terminal is used for outputting the optical signal inducing the cross gain modulation.
    • 目的:提供一种信号分离型光波长转换器,通过将波长转换的光信号与输出光信号分离而不用滤波器输出波长转换的光信号。 信号分离型光波长转换器包括第一输入端(34),第二输入端(35),光放大调制器(31),第一输出端(36)和第二输出端(37) 。 第一输入端子用于接收连续的光源。 第二输入端用于接收光信号。 光放大调制器用于根据输入端决定输出端,并根据光信号的强度改变连续光源的强度。 第一输出端子用于输出具有转换波长的光信号。 第二输出端子用于输出引起交叉增益调制的光信号。
    • 10. 发明授权
    • 전광 동기 신호의 추출이 동시에 가능한 초고속 광파장변환장치
    • 电视节目预告节目
    • KR100373761B1
    • 2003-02-26
    • KR1020000072036
    • 2000-11-30
    • 한국과학기술연구원
    • 김동환이상배최상삼변영태한일기
    • G02B26/00
    • G02F2/004
    • The present invention provides an ultra-high speed optical wavelength converter apparatus for enabling extraction of all optical lock signals which implements an ultra-high speed wavelength converter without an external pump light by constructing a semiconductor-fiber ring laser (SFRL) in which a semiconductor optical amplifier (SOA) is used as a laser gain medium and simultaneously implements a clock pulse generator for generating an optical pulse string which is injection mode-locked by an input signal light, and then is phase-locked with an input signal string. According to the present invention, there is proposed an ultra-high speed optical wavelength converter apparatus for enabling extraction of all optical lock signals in which when an output is obtained at a suitable position within a laser resonator after constituting a semiconductor optical laser, a phase lock signal is generated by an injection mode locking laser and a wavelength converter apparatus eliminating the necessity of an external pump light is implemented at another position thereof.
    • 本发明提供一种超高速光学波长转换器装置,通过构造半导体 - 光纤环形激光器(SFRL),其能够在没有外部泵浦光的情况下提取实现超高速波长转换器的所有光学锁定信号,其中半导体 - 光纤环形激光器 光放大器(SOA)被用作激光增益介质,并且同时实现时钟脉冲发生器,用于产生由输入信号光注入锁模的光脉冲串,然后与输入信号串锁相。 根据本发明,提出了一种超高速光学波长转换装置,能够提取在构成半导体光学激光之后的激光谐振器内的适当位置获得输出时的全部光锁定信号, 锁定信号由注入模式锁定激光器产生,并且消除了外部泵浦光的必要性的波长转换器设备在其另一位置处被执行。