-
公开(公告)号：KR1020040050423A
公开(公告)日：2004-06-16
申请号：KR1020020078257
申请日：2002-12-10
Applicant: 한국전자통신연구원
IPC: H01S5/34
CPC classification number: H01S5/50 , H01S5/5072
Abstract: PURPOSE: An ultra high speed optical signal processor where a saturated absorber and a constant gain optical amplifier are integrated is provided to increase a response time in a high speed optical transmission system and to transmit data without distortion as to an input pulse having a narrow width. CONSTITUTION: A constant gain optical amplifier region corresponds to a diffraction grating(4) formed in an N-type InP substrate(2). An undoped InGaAsP active layer(6), a P type InP clad layer(8) and an InGaAs ohmic contact layer(10) are stacked on an upper surface of the N type InP substrate in sequence. A pair of top metal electrodes(12a,12b) are stacked on an upper surface of the InGaAs ohmic contact layer and are insulated by an etched groove. A bottom metal electrode(14) is stacked below the N type InP substrate. And an anti-reflective thin film(16) is stacked on both sides, and a saturated absorber region and a constant gain optical amplifier region are arranged in parallel on the InGaAs ohmic contact layer.
Abstract translation: 目的：提供集成了饱和吸收器和恒定增益光放大器的超高速光信号处理器，以增加高速光传输系统中的响应时间，并且对于具有窄宽度的输入脉冲传输数据而不失真 。 构成：恒定增益光放大器区对应于形成在N型InP衬底（2）中的衍射光栅（4）。 未掺杂的InGaAsP有源层（6），P型InP包覆层（8）和InGaAs欧姆接触层（10）依次层叠在N型InP衬底的上表面上。 一对顶部金属电极（12a，12b）堆叠在InGaAs欧姆接触层的上表面上并被蚀刻槽绝缘。 底部金属电极（14）堆叠在N型InP衬底的下方。 并且在两侧堆叠抗反射薄膜（16），并且在InGaAs欧姆接触层上平行布置饱和吸收体区域和恒定增益光放大器区域。
-
公开(公告)号：KR1020040038321A
公开(公告)日：2004-05-08
申请号：KR1020020067218
申请日：2002-10-31
Applicant: 한국전자통신연구원
IPC: G02F3/00
CPC classification number: G02F3/00 , G02F1/3517
Abstract: PURPOSE: A logic element using saturable absorbers is provided to apply the same current to the first saturable absorber and the second saturable absorber, without a change of a path phase difference caused by optical strength of an input signal, thereby alleviating restrictions on an operational input optical strength range. CONSTITUTION: The first saturable absorber(117) inputs power in which the first input signal is synthesized with a reference signal, has a more passing power than an absorbing power if the power is more than the first transparent input optical strength, and has a more absorbing power if the power is less than the optical strength. The second saturable absorber(118) inputs power in which the first input signal, the second input signal, and the reference signal are synthesized together, has a more passing power if the power is more than the second transparent input optical strength, and has a more absorbing power if the power is less than the optical strength. Combiners(114a,114b) combine an output of the first saturable absorber(117) with an output of the second saturable absorber(118).
Abstract translation: 目的：提供使用可饱和吸收器的逻辑元件，以将相同的电流施加到第一可饱和吸收器和第二可饱和吸收器，而不会改变由输入信号的光强度引起的路径相位差，从而减轻对操作输入的限制 光强度范围。 构成：第一饱和吸收器（117）输入用参考信号合成第一输入信号的功率，如果功率大于第一透明输入光强，则具有比吸收功率更多的功率，并且具有更多 如果功率小于光学强度，则吸收功率。 第二可饱和吸收器（118）输入第一输入信号，第二输入信号和参考信号合成在一起的功率，如果功率大于第二透明输入光强，则具有更多的通过功率，并且具有 如果功率小于光学强度，则吸收功率更大。 组合器（114a，114b）将第一可饱和吸收器（117）的输出与第二可饱和吸收器（118）的输出组合。
-
公开(公告)号：KR1020040032375A
公开(公告)日：2004-04-17
申请号：KR1020020061485
申请日：2002-10-09
Applicant: 한국전자통신연구원
IPC: H01S5/12
Abstract: PURPOSE: A distributed reflection laser diode including a spot-size converter and a DFB(Distributed FeedBack) laser diode is provided to increase a single mode yield and an optical output regardless of a phase of a diffraction grid by forming the spot-size converter and the DFB laser diode with one body. CONSTITUTION: A distributed reflection laser diode including a spot-size converter and a DFB laser diode includes a substrate(700), a bottom clad layer(710), a diffraction grid(720), a passive waveguide layer(740), an intermediate clad layer(750), an active layer(760), a top clad layer(770), and a ridge(780). The bottom clad layer(710) is formed on the substrate(700). The diffraction grid(720) is formed on the bottom clad layer. A bottom clad layer and an optical waveguide layer are formed on the diffraction grid. The passive waveguide layer(740) is formed on the optical waveguide layer to transmit beams to the third region. The intermediate clad layer(750) is formed on the passive waveguide layer. The active layer(760) is formed on the intermediate clad layer to transfer the beams from the second region to the passive waveguide layer. The top clad layer(770) is formed on the active layer. The ridge(780) is formed on the top clad layer. The ridge has a tapering structure.
Abstract translation: 目的：提供一种包括点尺寸转换器和DFB（分布式反馈）激光二极管的分布反射激光二极管，以通过形成点尺寸转换器和衍射栅格的相位来提高单模产量和光输出， 一体DFB激光二极管。 构成：包括点尺寸转换器和DFB激光二极管的分布反射激光二极管包括衬底（700），底包层（710），衍射栅极（720），无源波导层（740），中间层 包层（750），有源层（760），顶覆层（770）和脊（780）。 底部覆盖层（710）形成在基板（700）上。 衍射栅格（720）形成在底部包层上。 在衍射栅格上形成底层和光波导层。 无源波导层（740）形成在光波导层上，以将光束传输到第三区域。 中间包层（750）形成在无源波导层上。 有源层（760）形成在中间包层上，以将束从第二区域转移到无源波导层。 顶层包层（770）形成在有源层上。 脊（780）形成在顶部包层上。 脊具有锥形结构。
-
64.发明授权스트레인 분산 패드를 이용한 측면-테이퍼 도파로 제조방법과 이를 응용한 모드변환기 제조방법 및 그에 따른광소자 失效使用应变分散垫制造侧面锥形波导的方法，使用其制造模式转换器的方法及其光学装置
公开(公告)号：KR100358133B1
公开(公告)日：2002-10-25
申请号：KR1020000086719
申请日：2000-12-30
Applicant: 한국전자통신연구원
IPC: G02B6/02
Abstract: 접촉식 노광장비를 사용하되, 측면-테이퍼 패턴 형성시 야기되는 스트레인을 흡수할 수 있는 패드를 테이퍼 끝단에 연결시킨 마스크를 사용하여 리소그라피 공정을 수행하므로써 그 끝단을 0.6um 정도로 형성한 다음, 습식식각에 의해 0.1um의 매우 균일한 측면-테이퍼 도파로(또는 활성층)을 갖는 모드변환기를 제조하는 방법이 개시되어 있다. 이에 따라, 고분해능 전자선 리소그래피법 및 스테퍼를 사용하지 않도도 되어 제작 비용을 절감할 수 있고, 접촉식 노광 장비를 사용하더라도 종래와 같이 과도한 깊은 습식식각을 수행하지 않아도 되어 측면-테이퍼 패턴 제작의 재현성을 높일 수 있다. 또한 이러한 방법에 의해 제작된 측면-테이퍼 구도의 모드변환기를 광소자와 함께 집적시켜 제작하므로써, 모드변환기의 위치 조절 및 재현성을 높여 수율 증대를 가져올 수 있다.
-
-
Patent Agency Ranking
公开(公告)号：KR1020170057037A
公开(公告)日：2017-05-24
申请号：KR1020150160635
申请日：2015-11-16
Applicant: 한국전자통신연구원
CPC classification number: G02B6/4224 , G01J1/0209 , G01J1/44 , G01J3/0259 , G01J2001/444 , G02B6/12019 , G02B6/4239 , G02B6/4257 , G02B6/4279 , G02B6/4281 , H04B10/60
Abstract: 본발명은다채널광 수신기및 그의제조방법에관한것이다. 이에따른본 발명은, 일측으로수신된광신호가출력되는타측에기설정된각도로경사면이형성되는 PLC 칩, 상기 PLC 칩상에본딩되고유리재질로구성되는 PD 캐리어및 상기 PD 캐리어상에본딩되고, 렌즈가집적된 SI-PD를포함하되, 상기 PLC 칩, 상기 PD 캐리어및 상기 SI-PD는적어도하나의정렬마크에의해수동정렬되어본딩되는것을특징으로하는다채널광 수신기및 그의제조방법에관한것이다.
Abstract translation: 多通道光接收器及其制造方法技术领域本发明涉及一种多通道光接收器及其制造方法。 根据本发明的另一方面，提供了一种PLC芯片，包括：PLC芯片，具有在接收到的光信号的另一侧上以预定角度形成的斜面，粘合在PLC芯片上并且由玻璃材料制成的PD载体， 其中PLC芯片，PD载体和SI-PD通过至少一个对准标记进行手动对准和结合，并涉及其制造方法。 。
-
公开(公告)号：KR1020160134914A
公开(公告)日：2016-11-24
申请号：KR1020150066726
申请日：2015-05-13
Applicant: 한국전자통신연구원
CPC classification number: G06F7/588 , G06N99/002 , H04L9/0852
Abstract: 본발명은광잡음을코히어런트하게측정하고이를근거로난수열을다중으로출력하는것을특징으로하는다중출력양자난수발생기를구현하여초고속으로난수열을출력할수 있고다중출력이가능하다.
Abstract translation: 多输出量子随机数发生器相干地测量光源噪声，并基于光源噪声的独立和相干测量输出随机数序列。 因此，可以高速输出随机数序列并执行多个输出。
-
公开(公告)号：KR1020140077734A
公开(公告)日：2014-06-24
申请号：KR1020120146841
申请日：2012-12-14
Applicant: 한국전자통신연구원
IPC: H04B10/07
CPC classification number: H04B10/0731 , H04B10/613 , H04L27/223 , H04L27/364 , H04L2027/0083
Abstract: The present invention relates to an IQ imbalance measuring device and an IQ imbalance measuring method and, more specifically, to an IQ imbalance measuring device and an IQ imbalance measuring method for an optical receiver. The IQ imbalance measuring device according to the present invention comprises a light generating unit generating an optical signal and a reference signal and providing an optical receiver with the optical signal and the reference signal; a graph creating unit creating a Lissajous figure by using an I signal and a Q signal output from the optical receiver in response to the optical signal and the reference signal; and a calculating unit calculating IQ imbalance of the optical receiver with reference to the Lissajous figure. The IQ imbalance measuring device and the IQ imbalance measuring method according to the present invention can measure IQ imbalance for the optical receiver with few calculations on a low speed signal.
Abstract translation: 本发明涉及IQ不平衡测量装置和IQ不平衡测量方法，更具体地说，涉及一种用于光接收机的IQ不平衡测量装置和IQ不平衡测量方法。 根据本发明的IQ不平衡测量装置包括产生光信号和参考信号的光产生单元，并向光接收器提供光信号和参考信号; 图形生成单元，响应于光信号和参考信号，通过使用从光接收器输出的I信号和Q信号来创建李萨如图; 以及计算单元，参考利萨如图来计算光接收机的IQ不平衡。 根据本发明的IQ不平衡测量装置和IQ不平衡测量方法可以在低速信号上进行很少的计算来测量光接收机的IQ不平衡。
-
公开(公告)号：KR1020130049967A
公开(公告)日：2013-05-15
申请号：KR1020110115055
申请日：2011-11-07
Applicant: 한국전자통신연구원
Inventor： 김종회
CPC classification number: H04B10/677 , H04B10/2572 , H04L27/223 , H04L27/2331
Abstract: PURPOSE: A light receiver of a DPSK(Differential Phase Shift Keying) method is provided to compensate for a polarized phase difference between light output signals by controlling a length or a width of a curved waveguide. CONSTITUTION: A light splitter(201) divides a received light signal into a first light signal and a second light signal. A light delay waveguide(203) delays the first light signal. A curved waveguide(205) delays the second light signal. The curved waveguide compensates a polarized phase difference in an output end. A light hybrid(207) generates a light detecting signal corresponding to a phase difference between the second light signal and the delayed first signal. [Reference numerals] (201) Light splitter; (207) Light hybrid
Abstract translation: 目的：提供DPSK（差分相移键控）方法的光接收器，通过控制弯曲波导的长度或宽度来补偿光输出信号之间的极化相位差。 构成：光分路器（201）将接收的光信号分成第一光信号和第二光信号。 光延迟波导（203）延迟第一光信号。 弯曲波导（205）延迟第二光信号。 弯曲波导补偿输出端的极化相位差。 光混合（207）产生对应于第二光信号和延迟的第一信号之间的相位差的光检测信号。 （附图标记）（201）分光器; （207）轻混合
-
公开(公告)号：KR101191237B1
公开(公告)日：2012-10-16
申请号：KR1020080129530
申请日：2008-12-18
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04J14/00 , G02B6/34
CPC classification number: G02B6/124 , G02B6/02095 , G02B6/29394 , H01S5/1215 , H01S5/125 , H01S5/5045 , H04B10/25137 , H04B10/2587 , H04B10/272 , H04J14/02 , H04J14/0246 , H04J14/0252 , H04J14/0282 , H04J2014/0253
Abstract: Provided is an upstream source light generator of a passive optical network (PON) system. The upstream source light generator includes an amplification part configured to amplify injection light, and a reflection part configured to receive the amplified injection light and generate reflection light by reflecting the amplified injection light with different optical delays according to wavelengths of the amplified injection light.
-
-
-
-
-
-
-
-
-
Search Results
83
records
(took 0.039 seconds)
