| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | 능동제어된파장별이득을갖는광증폭기및변화가능한출력스펙트럼을갖는광섬유광원 | KR1019980028259 | 1998-07-14 | KR1020000008448A | 2000-02-07 | 김병윤; 윤석현; 김효상 |
| PURPOSE: An optical amplifier and optical fiber source is provided to gain a profit rate in each wavelength and to gain a changeable output spectrum in various shapes. CONSTITUTION: In the optical amplifier, overall profit rate function has a desired shape by including a profit medium presenting an optical profit, pump for pumping the optical profit, an optical incidence tool in which an optical signal is incident to the profit medium, at least more than one wavelength changeable filter having loss rate function. In the optical fiber source, a spectrum of an amplified and voluntary emitting light generated from a profit optical fiber has a desired shape in output section by including a profit optical fiber in a predetermined length, an optical pump forming voluntary emitting light, at least more than one wavelength changeable filter having a loss function, a filter driver for applying an electric signal controlling a loss function. | ||||||
| 102 | 광파이버증폭기 및 광중계증폭기 | KR1019940030884 | 1994-11-23 | KR100175343B1 | 1999-05-01 | 시게마쯔마사유키; 나카자토코지; 카시와다토모노리; 니시무라마사유키 |
| 본 발명은 광파이버증폭기는, 신호광과 여기광을 입력해서, 신호광을 증폭하고, 그 증폭된 신호광을 출력하는 적어도 2종류의 희토류원소가 첨가된 유리조성으로부터 선택된 유리조성을 각각 지니는 적어도 2종류의 광파이버가 직렬로 접속된 복합광파이버와, 여기광을 발생해서 상기 복합광파이버에 공급하는 여기수단을 구비한다. 그래서, 파장분할다중전송 또는 애널로그광전송에 있어서의 각종 파장범위의 이득의 파장의존성을 저감함과 동시에, 증폭용 에너지효율을 유지하는 광파이버증폭기, 각종 입력광의 강도에 따라서 이득피크파장을 소정의 파장으로 할 수 있는 광파이버증폭기 및 이 광파이버증폭기를 구비한 광중계증폭기를 제공한다. | ||||||
| 103 | 다채널 광섬유증폭광원의 채널폭 조절장치 | KR1019940015000 | 1994-06-28 | KR100146648B1 | 1998-08-17 | 이재승; 심창섭 |
| 본 발명은 다채널 광섬유증폭광원의 채널폭 조절장치에 관한 것으로, 특히 다채널 광섬유증폭광원의 채널폭 조절장치에 있어서, 여기광을 발생하는 여기광 발생부(60)와, 상기 여기광 발생부(60)에서 발생된 여기광을 두 경로로 나누어 주는 광결합기(70)와, 무입력으로 자기 방출(ASE)잡음광을 발생하는 제1에르븀광섬유(11)와, 상기 광섬유를 통해 진행하는 빛을 렌즈를 통해 단면폭을 확장하여 자유공간으로 전파시킨 뒤 다시 렌즈를 통하여 모으는 광섬유 빔확장기(40)와, 상기 광섬유 빔확장기(40)의 적정위치에 설치되어 자유공간을 통해 진행하는 자기방출(ASE) 스펙트럼을 필터링하여 파장분할다중화(WDM)용 광채널로 만드는 파브리-페로 필터(50)와, 파장분할다중화(WDM)통신에 맞도록 스펙트럼모양이 갖춰진 자기방출(ASE)을 증폭하는 제2에르븀광섬유(12) � �� 상기 광결합기(70)와 제 1에르븀광섬유(11)로부터 공급되는 파장이 다른 신호광과 여기광을 동일한 에르븀광섬유내에서 서로 다른 방향으로 진행하도록 혼합해 주는 신호광/여기광 혼합기(21)를 구비하여, 광신호를 인가하지 않는 상태에서 증폭된 자기방출(ASE) 잡음광을 발생하는 에르븀광섬유증폭기를 파장분할다증화(WDM)용 광원 즉, 광섬유증폭광원으로 사용함으로써 채널간격 및 출력광의 세기(Power)에 영향을 주지 않으면서 채널폭을 손쉽게 제어할 수 있으며 또한, 이단계(two stage)광증폭광원구조를 사용하여 광학필터로 스펙트럼을 저밀 때 발생하는 여기광효율의 저하를 방지할 수 있다. | ||||||
| 104 | 光増幅装置 | JP2014070563 | 2014-03-28 | JP6337571B2 | 2018-06-06 | 歩行田 祥人; 竹山 智明; 宿南 宣文 |
| 105 | 光分岐器、光増幅装置及び光増幅方法 | JP2014078513 | 2014-04-07 | JP2015200728A | 2015-11-12 | 泉 太 |
| 【課題】光の分岐比を能動的な制御を用いずに可変できるようにする。 【解決手段】ファラデー回転子141を通過した入力光を偏波ビームスプリッタ142によって偏波成分の別に分岐する。その際、温度に依存して変形する部材30の変形に伴う力を利用してファラデー回転子141と磁石145,146との相対的な位置関係を制御する。 【選択図】図8 |
||||||
| 106 | 光増幅装置 | JP2014070563 | 2014-03-28 | JP2015192127A | 2015-11-02 | 歩行田 祥人; 竹山 智明; 宿南 宣文 |
| 【課題】装置のサイズを小型化できる光増幅装置を提供すること。 【解決手段】第1光増幅部110は、第1EDF112および第2EDF114に励起パワーを与え、伝送信号に利得を与える。OADM部120は、信号を挿入または分岐する。第1PD115は、SPL111からの伝送信号を基に入力された全信号のパワーを検出する。第2PD124は、SPL123から送信された信号を基に出力される信号パワーを検出する。GEQ113は、各波長の信号に対して損失を与え、利得を平坦化する。AGC制御部116は、SPL121でのDrop信号、WSS122でのAdd信号により第2PD124で検出される信号の波長数が変化するので、第2PD124で検出された信号パワーを補正する。第2光増幅部130は、OADM部120を通過した信号を増幅し、伝送路ファイバへ送信する。 【選択図】図1 |
||||||
| 107 | Optical amplifier and an optical amplification method | JP2005282822 | 2005-09-28 | JP4746951B2 | 2011-08-10 | 真木 平泉; 昌太 森 |
| 108 | Optical transmission device | JP2005096531 | 2005-03-29 | JP4659498B2 | 2011-03-30 | 寛己 大井; 美紀 尾中; 靖 菅谷 |
| 109 | Optical amplifier apparatus and method of controlling the same, and optical transmission system | JP2009077100 | 2009-03-26 | JP2010232341A | 2010-10-14 | HAZAMA RYUJI |
| <P>PROBLEM TO BE SOLVED: To provide an optical amplifier apparatus, a method of controlling the same, and an optical transmission system, which use a simple method to correct an SRS tilt generated in a transmission path after a subsequent stage amplifier out of two amplifiers, which amplify an input optical signal in the previous stage and in the subsequent stage, in response to the frequency of the optical signal flowing in the transmission path. <P>SOLUTION: Control parameters for controlling two amplifiers and an attenuator are determined so as to correct a spectral slope caused by stimulated Raman scattering of an optical signal, based on network information received from another device. The two amplifiers and the attenuator are then controlled in accordance with the control parameters. <P>COPYRIGHT: (C)2011,JPO&INPIT | ||||||
| 110 | Optical amplifier, optical amplification repeater and the excitation light supply control method | JP2007502513 | 2005-02-09 | JP4399496B2 | 2010-01-13 | 真一郎 室; 悦子 林; 靖 菅谷 |
| 111 | Control of the optical amplifier | JP2000517502 | 1998-10-05 | JP4302881B2 | 2009-07-29 | アスキンガー、トマス; ウッド、ナイジェル、ロバート; ヨハンソン、ベングト |
| 112 | Raman amplifier | JP2002334037 | 2002-11-18 | JP4184046B2 | 2008-11-19 | 洋 中元; 崇男 内藤; 俊毅 田中; 健一 鳥居 |
| 113 | 光サージ抑圧型光増幅器 | JP2007506928 | 2005-03-07 | JPWO2006095395A1 | 2008-08-14 | 尾中 美紀; 美紀 尾中; 林 悦子; 悦子 林 |
| 本発明の光サージ抑圧型光増幅器は、複数の光増幅手段が直列に接続された多段増幅構成のWDM用光増幅器について、信号光出力側の光増幅手段に対し、ホモジニアス・アップコンバージョン(HUC)現象を発生可能な光増幅媒体を適用することで、入力パワー低下時に発生するHUCによる利得効率の低下を利用して光サージを抑圧する。また、1波用光増幅器については、信号光入力側の光増幅手段に対し、ペア・インデュースド・クエンチング(PIQ)現象を発生可能な光増幅媒体を適用することで、入力パワー上昇時に発生するPIQによる出力効率の低下を利用して光サージを抑圧する。これにより、制御回路や光回路構成を複雑化させずに、光サージを効果的に抑圧できる低コストの光増幅器を提供できる。 | ||||||
| 114 | Optical components, optical amplifier module and an optical transmission system. | JP2002264500 | 2002-09-10 | JP4062024B2 | 2008-03-19 | 均 畑山; 龍彦 蔀; 素貴 角井; 昌行 重松 |
| 115 | An optical fiber amplifier having a variable gain | JP53566598 | 1998-02-13 | JP3992749B2 | 2007-10-17 | サンデル，ヨハン; スンデリン，マグヌス; ボンネダル，ダグ |
| 116 | Raman amplification dispersion compensation module and an optical communication system using the same | JP2002274646 | 2002-09-20 | JP3934517B2 | 2007-06-20 | アルフレッド リード ウィリアム; ダブリュ． 二コルソン ジェフレイ; ジェー． デギオヴァンニ ディヴィッド; パルスドッティル ベラ; フェイ ヤン マン |
| 117 | Optical amplifier | JP2005331269 | 2005-11-16 | JP2007142008A | 2007-06-07 | KOMAKI KOSUKE; ITO HIROYUKI |
| <P>PROBLEM TO BE SOLVED: To eliminate the need of photodetector means on a prestage of an external attenuation medium, prevent SN deterioration, and reduce required excitation light power. <P>SOLUTION: Attenuation amount detection means 3 detects an amount of attenuation of signal light caused by a variable optical attenuator 6 and the external attenuation medium 7 from prestage photodetection means 1a of a prestage optical amplifier 1, provided on a front stage of a variable optical attenuator 6 and an external attenuation medium 7 connected in series and from a subsequent stage photodetection means 2a of a subsequent stage optical amplification part 2 provided on a subsequent stage. Attenuation amount control means 4 controls the variable optical attenuator 6 such that an attenuation amount of signal light detected by the attenuation amount detection means 3 remains unchanged. Connection detection means 5 detects disconnection and connection of the external attenuation medium 7 in response to an amount of attenuation of the signal light when the amount of the attenuation of the variable optical attenuator 6 is minimum. <P>COPYRIGHT: (C)2007,JPO&INPIT | ||||||
| 118 | Optical amplifier | JP2005252508 | 2005-08-31 | JP2007067235A | 2007-03-15 | ONAKA YOSHINORI; SUGAYA YASUSHI |
| <P>PROBLEM TO BE SOLVED: To provide a low-cost WDM optical amplifier that can maintain a flat predetermined signal light output level and output wavelength characteristic for a variation in signal light input level through simple control, allowing a wide input dynamic range. <P>SOLUTION: The optical amplifier has a variable optical attenuator 21 between a former optical amplifier 11 and a latter optical amplifier 12, and also has a variable optical attenuator 22 at the output side of the latter optical amplifier 12, and if the signal light input level of a WDM light inputted into the input port IN is lower than the base point level, control is done such that the attenuation amount of the variable optical attenuator 21 in-between is not increased (basically kept to a minimum), and the attenuation amount of the variable optical attenuator 22 at the output side is increased just by a portion by which the signal light input level is increased. On the other hand, if the signal light input level is higher than the base point level, the attenuation amounts of both variable optical attenuators 21 and 22 in-between and at the output side are controlled in accordance with the signal light input level. <P>COPYRIGHT: (C)2007,JPO&INPIT | ||||||
| 119 | Optical amplifier and optical fiber | JP2005182425 | 2005-06-22 | JP2007005484A | 2007-01-11 | SUKUNAMI NOBUFUMI; INAGAKI SHINYA |
| <P>PROBLEM TO BE SOLVED: To improve the quality of WDM transmission by reducing four light-wave mixture. <P>SOLUTION: An optical fiber 11 has positive wavelength dispersion in a signal bandpass, and becomes an optical amplification medium which amplifies a wavelength multiplexing signal in which two or more wavelengths are multiplexed. An excitor 12 enters the excitation light into the optical fiber 11. In order to obtain the phase mismatching property of a wavelength to be transmitted, the optical fiber 11 has positive wavelength dispersion as a wavelength dispersion in a signal bandpass where the difference gets larger between the signal frequency which is the frequency of a signal to be amplified and the zero dispersion frequency wherein the wavelength dispersion becomes zero, so that it may function as an optical amplification medium capable of suppressing the generation of four light-wave mixture. <P>COPYRIGHT: (C)2007,JPO&INPIT | ||||||
| 120 | Optical transmission apparatus | JP2005096531 | 2005-03-29 | JP2006279610A | 2006-10-12 | ONAKA YOSHINORI; SUGAYA YASUSHI; OOI HIROMI |
| <P>PROBLEM TO BE SOLVED: To provide an optical transmission apparatus capable of reducing the initial introduction cost, flexibly extending its function in response to the tendency of high power and a long distance and realizing OSNR improvement at a low cost at extending the function. <P>SOLUTION: The optical transmission apparatus includes an OADM 102 located on an optical transmission line 101 and adding and dropping an optical signal; a Preamplifier section 103 located at a pre-stage of the OADM 102; and a post amplifier section 104 located at a post-stage of the OADM 102. The Post amplifier section 104 includes: a dispersion compensation fiber 111 and an excitation light multiplexer 124a located at the post stage of the OADM 102; and an excitation light source 125a connected to the excitation light multiplexer 124a at the extension of the function of the optical transmission apparatus and for applying Raman amplification to the dispersion compensation fiber 111. The Preamplifier section 103 includes a excitation light multiplexer 114a and an excitation light source 115a connected at the extension of the function of the optical transmission apparatus and for applying Raman amplification to the signal on the transmission line 101. <P>COPYRIGHT: (C)2007,JPO&INPIT | ||||||
QQ群二维码
意见反馈
意见反馈