公开(公告)号：US20120057221A1

公开(公告)日：2012-03-08

申请号：US13255803

申请日：2010-03-10

申请人： David Rosenbluth ,  Paul R. Prucnal ,  Konstantin Kravtsov

发明人： David Rosenbluth ,  Paul R. Prucnal ,  Konstantin Kravtsov

IPC分类号： H01S5/042 ,  H01S5/06

CPC分类号： G06E3/003 ,  H01S5/509

摘要： An optical integration circuit includes a semiconductor optical amplifier (SOA), a readout mechanism coupled to the SOA, and an optical filter coupled to an output of the SOA. The SOA has a decaying response function and an input for receiving an optical input signal having a first wavelength. The SOA is configured to output an optical signal representing a temporal integration of the optical input signal. The readout mechanism provides an optical readout signal having a second wavelength to the SOA for measuring a state of the SOA. The optical filter is configured to receive the signal representing the temporal integration of the optical input signal and block optical signals having the first wavelength.

摘要翻译： 光学积分电路包括半导体光放大器（SOA），耦合到SOA的读出机构以及耦合到SOA的输出端的光学滤波器。 SOA具有衰减响应功能和用于接收具有第一波长的光输入信号的输入。 SOA被配置为输出表示光输入信号的时间积分的光信号。 读出机构向SOA提供具有第二波长的光学读出信号，用于测量SOA的状态。 光滤波器被配置为接收表示光输入信号和具有第一波长的块光信号的时间积分的信号。

公开(公告)号：US20120056293A1

公开(公告)日：2012-03-08

申请号：US13279460

申请日：2011-10-24

申请人： Kazuhisa Takagi

发明人： Kazuhisa Takagi

IPC分类号： H01L31/0232

CPC分类号： H01S5/22 ,  B82Y20/00 ,  H01S5/1053 ,  H01S5/1057 ,  H01S5/124 ,  H01S5/2222 ,  H01S5/227 ,  H01S5/3412 ,  H01S5/509

摘要： A semiconductor optical element has an active layer including quantum dots. The density of quantum dots in the resonator direction in a portion of the active layer in which the density of photons is relatively high is increased relative to the density of quantum dots in a portion of the active layer in which the density of photons is relatively low.

摘要翻译： 半导体光学元件具有包括量子点的有源层。 光子密度相对较高的有源层部分中的谐振器方向的量子点的密度相对于有源层的一部分中的光子的密度相对较低的部分的量子点的密度而增加 。

公开(公告)号：US07701629B2

公开(公告)日：2010-04-20

申请号：US11788445

申请日：2007-04-19

申请人： Shih-Yuan Wang ,  Alexandre M. Bratkovski

发明人： Shih-Yuan Wang ,  Alexandre M. Bratkovski

IPC分类号： G02B1/03

CPC分类号： H01S5/50 ,  B82Y20/00 ,  G02B6/29311 ,  G02B2006/1213 ,  G02F1/017 ,  G02F2202/32 ,  H01S5/105 ,  H01S5/183 ,  H01S5/4087 ,  H01S5/509

摘要： Various aspects of the present invention are directed to photonic devices, such as electro-optic modulators, passive filters, and tunable filters. In one aspect of the present invention, a photonic device includes a semiconductor structure having a p-region and an n-region. A doped region is formed on or within the semiconductor structure. The doped region includes at least one generally periodic array of recesses, with the at least one generally periodic array configured to transmit electromagnetic radiation at a selected dominant wavelength. The selected dominant wavelength is tunable by varying the refractive index of the semiconductor structure.

摘要翻译： 本发明的各个方面涉及光器件，例如电光调制器，无源滤波器和可调谐滤波器。 在本发明的一个方面中，光子器件包括具有p区和n区的半导体结构。 在半导体结构上或内部形成掺杂区域。 所述掺杂区域包括至少一个大致周期性的凹槽阵列，所述至少一个大致周期性阵列被配置为以选定的主波长传输电磁辐射。 选择的主波长可通过改变半导体结构的折射率来调节。

公开(公告)号：US20080259981A1

公开(公告)日：2008-10-23

申请号：US11788445

申请日：2007-04-19

申请人： Shih-Yuan Wang ,  Alexandre M. Bratkovski

发明人： Shih-Yuan Wang ,  Alexandre M. Bratkovski

IPC分类号： H01S5/02

CPC分类号： H01S5/50 ,  B82Y20/00 ,  G02B6/29311 ,  G02B2006/1213 ,  G02F1/017 ,  G02F2202/32 ,  H01S5/105 ,  H01S5/183 ,  H01S5/4087 ,  H01S5/509

摘要： Various aspects of the present invention are directed to photonic devices, such as electro-optic modulators, passive filters, and tunable filters. In one aspect of the present invention, a photonic device includes a semiconductor structure having a p-region and an n-region. A doped region is formed on or within the semiconductor structure. The doped region includes at least one generally periodic array of recesses, with the at least one generally periodic array configured to transmit electromagnetic radiation at a selected dominant wavelength. The selected dominant wavelength is tunable by varying the refractive index of the semiconductor structure.

摘要翻译： 本发明的各个方面涉及光器件，例如电光调制器，无源滤波器和可调谐滤波器。 在本发明的一个方面中，光子器件包括具有p区和n区的半导体结构。 在半导体结构上或内部形成掺杂区域。 所述掺杂区域包括至少一个大致周期性的凹槽阵列，所述至少一个大致周期性阵列被配置为以选定的主波长传输电磁辐射。 选择的主波长可通过改变半导体结构的折射率来调节。

公开(公告)号：US07123407B2

公开(公告)日：2006-10-17

申请号：US11039692

申请日：2005-01-20

申请人： Young Tae Byun ,  Jae Hun Kim ,  Young Min Jhon ,  Seok Lee ,  Deok Ha Woo ,  Sun Ho Kim ,  Jong Chang Yi

发明人： Young Tae Byun ,  Jae Hun Kim ,  Young Min Jhon ,  Seok Lee ,  Deok Ha Woo ,  Sun Ho Kim ,  Jong Chang Yi

IPC分类号： G02F3/00

CPC分类号： H01S5/50 ,  G02F1/3515 ,  G02F3/00 ,  G02F2203/70 ,  H01S5/509

摘要： The present invention relates to an apparatus and a method for realizing all-optical NOR logic device using the gain saturation characteristics of a semiconductor optical amplifier(SOA). More particularly, the invention relates to a 10 Gbit/s all-optical NOR logic device among all-optical logic devices, in which a signal transmitted from a given point of an optical circuit such as an optical computing circuit is used as a pump signal and a probe signal.The method for realizing an all-optical NOR logic device using the gain saturation characteristics of the SOA according to the present invention comprises the steps of: utilizing A+B signal which couples together an input signal pattern A (1100) and an input signal pattern B (0110) as a pump signal (1110); utilizing a probe signal (1111) by generating a clock signal out of said input signal pattern A (1100); and obtaining a Boolean equation {overscore (A+B)} by making said probe signal and said pump signal incident upon the SOA simultaneously from the opposite direction.The all-optical logic device according to the present invention has a simple construction since it is realized through the XGM (Cross Gain Modulation) method which utilizes the gain saturation characteristics. Also, it is expected that the method employed in the present invention could be used for realizing other all-optical logic circuits and devices.

摘要翻译： 本发明涉及使用半导体光放大器（SOA）的增益饱和特性实现全光NOR逻辑器件的装置和方法。 更具体地说，本发明涉及全光逻辑器件中的10Gbit / s全光NOR逻辑器件，其中从诸如光计算电路的光电路的给定点发送的信号用作泵信号 和探测信号。 使用根据本发明的SOA的增益饱和特性来实现全光NOR逻辑器件的方法包括以下步骤：利用将输入信号模式A（1100）和输入信号模式（1100）耦合在一起的A + B信号 B（0110）作为泵浦信号（1110）; 通过从所述输入信号模式A（1100）产生时钟信号来利用探测信号（1111）; 并通过使所述探针信号和所述泵浦信号从相反方向同时入射到SOA上而获得布尔方程（A + B）。根据本发明的全光逻辑器件具有简单的结构，因为它通过 利用增益饱和特性的XGM（交叉增益调制）方法，并且预期本发明中采用的方法可用于实现其他全光逻辑电路和装置。

公开(公告)号：US06856452B2

公开(公告)日：2005-02-15

申请号：US10334937

申请日：2002-12-31

申请人： Jong Hoi Kim ,  Kwang Ryong Oh ,  Yong Soon Baek ,  Hyun Soo Kim ,  Kang Ho Kim

发明人： Jong Hoi Kim ,  Kwang Ryong Oh ,  Yong Soon Baek ,  Hyun Soo Kim ,  Kang Ho Kim

IPC分类号： G02B6/125 ,  G02B6/28 ,  G02F1/21 ,  G02F2/00 ,  G02F1/365

CPC分类号： G02F2/004 ,  G02B6/2813 ,  G02F2001/212 ,  G02F2001/217 ,  H01S5/509

摘要： Filter-free wavelength converters for separating and rejecting an optical input signal. A first input port couples a continuous wave (CW) light. A second input port couples an optical input signal. A multimode interference semiconductor optical amplifier (MMI-SOA) determines the output port with the input port and intensity-modulation of the CW light with the optical input signal. A first output port guides the converted signal, and a second output port guides the optical input signal.

摘要翻译： 用于分离和拒绝光输入信号的无滤波器波长转换器。 第一输入端口连接连续波（CW）光。 第二输入端口耦合光输入信号。 多模干涉半导体光放大器（MMI-SOA）通过输入端口确定输出端口，并用光输入信号确定CW光的强度调制。 第一输出端口引导转换的信号，第二输出端口引导光输入信号。

公开(公告)号：US06577435B1

公开(公告)日：2003-06-10

申请号：US09416395

申请日：1999-10-12

申请人： Joon-Hak Bang ,  Jong-Hyun Lee ,  Jung-Hee Han ,  Sung-Un Lee ,  Sang-Rok Lee

发明人： Joon-Hak Bang ,  Jong-Hyun Lee ,  Jung-Hee Han ,  Sung-Un Lee ,  Sang-Rok Lee

IPC分类号： G02F135

CPC分类号： G02F2/004 ,  G02F1/0121 ,  H01S5/509

摘要： An optical wavelength converter based on cross-gain modulation with wide input dynamic range, the converter including a semiconductor optical amplifier, a continuous wave source, and a probe beam controller. The semiconductor optical amplifier modulates probe power on the basis of pump power. The continuous wave source generates the probe beam and supplies the generated probe beam to the semiconductor optical amplifier. The probe beam controller adjusts bias current supplied to the continuous wave source and controls the probe power in proportion to the pump power.

摘要翻译： 基于具有宽输入动态范围的交叉增益调制的光学波长转换器，该转换器包括半导体光放大器，连续波源和探测光束控制器。 半导体光放大器基于泵浦功率调制探头功率。 连续波源产生探测光束并将产生的探测光束提供给半导体光放大器。 探头光束控制器调节提供给连续波源的偏置电流，并根据泵浦功率控制探头功率。

公开(公告)号：US20020044709A1

公开(公告)日：2002-04-18

申请号：US09915401

申请日：2001-07-27

发明人： Lucia Marazzi ,  Mario Martinelli ,  Paola Parolari

IPC分类号： G02F001/025 ,  G02B006/26 ,  G02B006/12

CPC分类号： H01S5/50 ,  H01S5/4068 ,  H01S5/509

摘要： An optical device for providing threshold and comparison functions. The device comprises first and second SOA's having respective first and second propagation paths along which the first and second optical signals, input as signals Pin1(null1) and Pin2(null2) travel in first and second forward directions. A feedback path is provided using couplers to interconnect the outputs of the SOA's. As a result, a portion of the optical signals output from each SOA is supplied backwards into the output of the other SOA as feedback optical control signals Pfeedback1(null1) and Pfeedback2(null2). The feedback optical control signals modulate the gain of the forwards travelling optical signals by cross gain modulation (XGM). In contrast to prior art devices, the optical control signal is supplied backwards into the SOA's in a counter-propagating configuration. This allows much shorter feedback path lengths to be achieved in comparison to what is possible with prior art co-propagating configurations. Consequently, much higher bit rates can be achieved. The device may also be implemented in planar waveguide technology.

摘要翻译： 一种用于提供阈值和比较功能的光学装置。 该装置包括具有相应的第一和第二传播路径的第一和第二SOA，作为信号Pin1（lambd1）和Pin2（lambd2）输入的第一和第二光信号沿着第一和第二传播路径沿第一和第二正向行进。 使用耦合器提供反馈路径来互连SOA的输出。 结果，从每个SOA输出的光信号的一部分被反向提供给另一个SOA的输出，作为反馈光控制信号Pfeedback1（lambd1）和Pfeedback2（lambd2）。 反馈光控制信号通过交叉增益调制（XGM）调制前向行进光信号的增益。 与现有技术的装置相反，光学控制信号以反向传播配置向后提供给SOA。 与现有技术的共同传播配置相比，可以实现更短的反馈路径长度。 因此，可以实现更高的比特率。 该器件还可以在平面波导技术中实现。

公开(公告)号：US06374029B1

公开(公告)日：2002-04-16

申请号：US09586756

申请日：2000-06-05

申请人： Yoshiaki Nakano ,  Byong-Jin Ma

发明人： Yoshiaki Nakano ,  Byong-Jin Ma

IPC分类号： G02B610

CPC分类号： G02F2/004 ,  G02F1/3511 ,  G02F1/3515 ,  H01S5/204 ,  H01S5/205 ,  H01S5/22 ,  H01S5/509

摘要： An optical device having a large extinction ratio and being suitable for the digital operation including first and second electrodes (7, 8) formed on both sides of a waveguide structure, respectively such that a carrier-injection region (3a) and a non-carrier injection regions (3b) are formed adjacent to each other in the waveguide structure. When mass carriers are stored in the carrier injection region, its refractive index is reduced lower than the non-carrier-injection regions. In this state, when a light wave with low optical power propagates through the carrier-injection region, since an amount of carriers consumed thereby is small, the refractive index of this region is still lower than the non-carrier-injection regions, and the input light wave is emitted sideways through the non-carrier-injection region. In contrast, when a light wave with high optical power propagates through the carrier-injection region, since the carrier consumption is large, the refractive index of this region (3a) becomes higher than the non-carrier-injection regions (3b), and the input light propagates through a waveguide which is optically induced to extend from the incident surface to the exit surface.

摘要翻译： 一种具有大消光比并且适于数字操作的光学装置，包括分别形成在波导结构两侧的第一和第二电极（7,8），使得载流子注入区域（3a）和非载流子 注入区域（3b）在波导结构中彼此相邻地形成。 当质量载体存储在载流子注入区域中时，其折射率比非载流子注入区域低。 在这种状态下，当具有低光功率的光波传播通过载流子注入区域时，由于其消耗的载流子量小，所以该区域的折射率仍然低于非载流子注入区域， 输入光波通过非载波注入区域侧向发射。 相反，当具有高光功率的光波传播通过载流子注入区域时，由于载流子消耗量大，该区域（3a）的折射率变得高于非载流子注入区域（3b），并且 输入光传播通过光学地被引导以从入射表面延伸到出射表面的波导。

公开(公告)号：US20020003650A1

公开(公告)日：2002-01-10

申请号：US09898274

申请日：2001-07-02

发明人： Masashi Usami ,  Kosuke Nishimura ,  Munefumi Tsurusawa

IPC分类号： G02F001/03 ,  G02F001/07

CPC分类号： B82Y20/00 ,  G02F1/3515 ,  G02F1/3556 ,  G02F2203/07 ,  G02F2203/50 ,  H01S5/0611 ,  H01S5/509

摘要： An optical gate according to the invention comprises a polarization divider to divide an optical signal into two orthogonal polarization components and to output them as a first polarization component which precedes in the time base and a second polarization component which follows the first one in the time base; a semiconductor optical amplifier to modulate the phase of the second polarization component output from the polarization divider according to a control light; an assist light supplier to supply to the semiconductor optical amplifier an assist light to help the recovery of the refractive index variation of the semiconductor optical amplifier caused by the control light; a polarization combiner to combine the first and second polarization components of the optical signal transmitting on the semiconductor optical amplifier so as to adjust them in the same time location; and a polarization extractor to extract a predetermined polarization direction component from the output from the polarization combiner.

摘要翻译： 根据本发明的光栅包括偏振分配器，用于将光信号分成两个正交偏振分量，并将其输出为在时基之前的第一偏振分量，以及在时基中跟随第一偏振分量的第二偏振分量 ; 半导体光放大器，用于根据控制光调制从偏振分光器输出的第二偏振分量的相位; 辅助光供应器向半导体光放大器提供辅助光，以帮助恢复由控制光引起的半导体光放大器的折射率变化; 偏振组合器，用于组合在半导体光放大器上传输的光信号的第一和第二偏振分量，以便在相同的时间位置调整它们; 以及极化提取器，用于从偏振组合器的输出中提取预定的偏振方向分量。