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    • 2. 发明授权
    • 비가역 광파장 필터 장치
    • 비가역광파장필터장치
    • KR100378677B1
    • 2003-03-31
    • KR1020000045367
    • 2000-08-04
    • 한국과학기술원
    • 이창희오태원김현덕신정훈조윤희
    • G02B5/20
    • G02B6/272G02B6/2746G02B6/2766H01S3/0064H01S3/06754
    • The present invention relates to an apparatus and a method for a Non-Reciprocal Optical Wavelength Filter (NRWF) suitable for bidirectional optical transmissions, communications, and amplifiers. The NRWF of the present invention is composed of (1) a Reciprocal Rotator (RR) rotating the polarization state of the light reciprocally, (2) a non-reciprocal Faraday Rotator (FR) rotating the polarization state non-reciprocally according to the propagating direction, (3) two polarization beam splitters, BC1 and BC2, splitting an unpolarized wave into two orthogonally polarized waves, or combining the two orthogonally polarized waves, and (4) a Wavelength Dependent Polarization Converter (WDPC) changing the polarization state according to the wavelength of light. Accordingly, the NRWF has periodic transfer spectra, and the peaks of the transfer spectrum from Port 1 to Port 2 are located between those of the transfer spectrum form Port 2 to Port 1. Therefore, the NRWF of the invention suppresses multiple reflections in wavelength interleaved bidirectional transmissions. The optical amplifiers with the NRWF of the invention are useful for long-haul bidirectional systems and networks.
    • 本发明涉及适用于双向光学传输,通信和放大器的非互惠光波长滤波器(NRWF)的设备和方法。 本发明的NRWF由以下部分组成:(1)往复旋转光的偏振状态的倒易旋转器(RR),(2)根据传播不旋转地旋转偏振状态的非互易法拉第旋转器(FR) (3)两个偏振分束器,BC1和BC2,将非偏振波分成两个正交偏振波,或合并两个正交偏振波,(4)波长相关偏振转换器(WDPC),根据 光的波长。 因此,NRWF具有周期性转移光谱,并且从端口1到端口2的转移光谱的峰值位于从端口2到端口1的转移光谱的峰值之间。因此,本发明的NRWF抑制了波长交错的多次反射 双向传输。 具有本发明的NRWF的光放大器可用于长途双向系统和网络。
    • 3. 发明公开
    • 공간압축통신채널증가를위한광멀티플렉서/광디멀티플렉서
    • 空间压缩通信通道和光学多路复用器/光学解复用器
    • KR1020000008721A
    • 2000-02-15
    • KR1019980028664
    • 1998-07-15
    • 주식회사 일 진
    • 허진규한상용이시곤유재은백삼학
    • H04B10/00
    • G02B6/2938G02B6/272G02B6/2931
    • PURPOSE: A space compression communication channel and an optical multiplexer/optical demultiplexer using the same reduce energy loss of a transmission signal, and increases the number of optical communication channels. CONSTITUTION: A space compression communication channel increasing method converts an optical signal from an optical signal transmission part to a parallel light speed through an objective lens, divides the parallel light into many lights of many wavelengths through prism, focuses the divided light to an inherent focusing point through a secondary objective lens, and transmits the focused lights through an optical fiber wave guide. Thereby, a loss of a transmission signal is reduced, and the number of optical communication channels is increased.
    • 目的:空间压缩通信信道和使用其的光复用器/光解复用器减少了传输信号的能量损耗,并增加了光通信信道的数量。 构成:空间压缩通信信道增加方法通过物镜将光信号从光信号传输部分转换成平行光速,通过棱镜将平行光分成许多波长的光,将分光聚焦到固有聚焦 指向二次物镜,并通过光纤波导传播聚焦光。 从而,传输信号的丢失减少,并且光通信信道的数量增加。
    • 5. 发明公开
    • 저 편광 모드 분산을 가진 분산 보상 격자를 포함하는 물품
    • 装置包括具有低极化模式分散度的分散补偿光栅
    • KR1020000022867A
    • 2000-04-25
    • KR1019990037082
    • 1999-09-02
    • 피텔 유.에스.에이. 코포레이션
    • 스트라서,토마스앤드류와게너,제퍼슨린
    • G02B5/18
    • G02B6/4246G02B6/02109G02B6/272G02B6/274G02B6/278G02B6/29317G02B6/29394
    • PURPOSE: Dispersion compensation grating apparatus provides a color dispersion, freely selects a taste and quantity of the color dispersion by a chirf selection, and compensate a color compensation in a communication system. CONSTITUTION: Dispersion compensation grating apparatus has a chirfed brag grating(11)and an optical fiber of a predetermined length. The optical fiber has first and second polarization shafts, and is an optic-maintenance fiber which has an inherent fiber birefringence of 10¬(-6). The inherent fiber birefringence includes an optic fiber of a predetermined length and a brag grating in the fiber, and the predetermined length is 10¬(-5) or is larger than the 10¬(-5). Thereby, the dispersion compensation grating apparatus provides a color dispersion, freely selects a taste and quantity of the color dispersion by a chirf selection, and compensate a color compensation in a communication system.
    • 目的:色散补偿光栅装置提供色散,通过啁啾选择自由选择色散的味道和数量,并补偿通信系统中的色彩补偿。 构成:色散补偿光栅装置具有啁啾的布拉格光栅(11)和预定长度的光纤。 光纤具有第一和第二偏振轴,并且是光纤维持光纤,其具有10(-6)的固有光纤双折射。 固有光纤双折射包括预定长度的光纤和纤维中的布拉格光栅,并且预定长度为10°(-5)或大于10°(-5)。 因此,色散补偿光栅装置提供色散,通过啁啾选择自由选择色散的味道和数量,并补偿通信系统中的色彩补偿。
    • 6. 发明公开
    • 편광 모드 제어 기능을 이용한 평면 도파로 집적형 광 아이솔레이터 및 서큘레이터
    • 具有极化模式控制的可整合平面波导型光隔离器和循环器
    • KR1020150055389A
    • 2015-05-21
    • KR1020130137687
    • 2013-11-13
    • 인하대학교 산학협력단
    • 김동욱김경헌
    • G02B6/27G02B6/10
    • G02B6/272G02B6/10
    • 집적형광 아이솔레이터(Optical Isolator)는제1 광도파로(Optical Waveguide)를통하여미리설정된방향으로입사되는빛을편광상태에따라 TE(Transverse Electric Wave; TE) 편광또는 TM(Transverse Magnetic Wave; TM) 편광으로분리하여상기제1 광도파로및 상기제1 광도파로와구별되는제2 광도파로를통하여전송하는편광모드분파기; 상기편광모드분파기에서상기제1 광도파로및 상기제2 광도파로로분리되어전송된, 상기 TE 편광을상기 TM 편광으로변환하거나상기 TM 편광을상기 TE 편광으로변환하는편광모드회전기; 및상기편광모드회전기에서변환된, 상기 TM 편광및 상기 TE 편광을병합하여상기제1 광도파로와구별되는제2 광도파로를통하여출력하는편광모드결합기를포함하고, 상기편광모드분파기, 상기편광모드회전기및 상기편광모드결합기는상기제1 광도파로및 상기제2 광도파로로연결되어, 상기미리설정된방향의역방향으로입사되는빛은상기제2 광도파로를통하여출력되도록한다.
    • 一种集成光隔离器,包括:偏振模分波滤波器,其根据第一光波导的入射到预定方向的光,根据所述第一光波导的偏振状态将横向电波(TE)极化或横向磁波(TM)极化 并通过与第一光波导不同的第一光波导和第二波导传输相同的光; 将偏振模分波滤波器中被分割为第一光波导和第二光波导的TE极化转换为TM偏振的偏振模式旋转机,或将TM偏振转换为TE偏振; 在偏振模式旋转机中转换的TM偏振和TE偏振的偏振模耦合器,通过与第一光波导不同的第二光波导输出。 偏振模分波滤波器,偏振模旋转机和偏振模耦合器通过第一光波导和第二光波导连接,并且沿预定方向的反向入射的光通过第二光波导 波导。
    • 10. 发明公开
    • 비가역 광파장 필터 장치
    • 用于强制非对称光波长滤波器的方法和系统
    • KR1020020011813A
    • 2002-02-09
    • KR1020000045367
    • 2000-08-04
    • 한국과학기술원
    • 이창희오태원김현덕신정훈조윤희
    • G02B5/20
    • G02B6/272G02B6/2746G02B6/2766H01S3/0064H01S3/06754
    • PURPOSE: A method and a system for embodying a non-reciprocal optical wavelength filter are provided to have different periodical characteristics in accordance with propagation direction of a beam by damping reflection beams of respective directions using an optical wavelength filter having different transfer characteristics in both directions. CONSTITUTION: A faraday rotator has a non-reciprocal characteristics. The polarization status of a WDPC(Wavelength Dependent Polarization Converter) is varied in accordance with wavelength. Two birefringent crystals(BC1,BC2) split the polarization of an optical wave into two beams of orthogonal polarization using an anisotropic crystal. An RR(reciprocal rotator) rotates an incident optical wave in accordance with the propagation direction of the incident optical wave.
    • 目的:提供一种用于实现不可逆光波长滤波器的方法和系统,以通过使用具有不同传输特性的光学波长滤波器在两个方向上衰减各个方向的反射光束来根据光束的传播方向具有不同的周期特性 。 构成:法拉第旋转器具有不可逆的特性。 WDPC(波长相关偏振转换器)的偏振状态根据波长而变化。 两个双折射晶体(BC1,BC2)使用各向异性晶体将光波的极化分成两束正交极化。 RR(往复旋转器)根据入射光波的传播方向旋转入射光波。