公开(公告)号：US06983085B2

公开(公告)日：2006-01-03

申请号：US10358737

申请日：2003-02-05

申请人： Tomoyoshi Kataoka ,  Akira Hirano ,  Akihiko Matsuura

发明人： Tomoyoshi Kataoka ,  Akira Hirano ,  Akihiko Matsuura

IPC分类号： G02F1/035

CPC分类号： H04B10/505 ,  G02F2203/21 ,  H04B10/5051 ,  H04B10/50575 ,  H04B10/564

摘要： The optical transmission circuit of the present invention has an optical modulator 12 which modulates continuous light at wavelength λo with a signal at repetition frequency fo Hz and outputs alternating phase-inverted pulse light; a bias voltage applying unit 14 which applies a bias voltage to the optical modulator 12; an optical power spectrum measuring unit 17 having frequency resolution of less than fo Hz which measures the optical power spectrum of light output from the optical modulator 12; and a control circuit which controls the bias voltage via the bias voltage applying unit 14 based on measurements of the power spectrum of the output light of the optical modulator 12, so as to minimize the power intensity of the carrier spectrum component of wavelength λo, or to maximize the power intensity of the spectrum component in both side bands.

摘要翻译： 本发明的光传输电路具有光调制器12，其以重复频率为fHz的信号调制波兰兰波的连续光，并输出交替的相位反转的脉冲光; 偏置电压施加单元14，其向光调制器12施加偏置电压; 光功率谱测量单元17，其具有测量从光调制器12输出的光的光功率谱的小于f Hz的频率分辨率; 以及控制电路，其基于光调制器12的输出光的功率谱的测量，经由偏置电压施加单元14控制偏置电压，以使波长兰波的载流子分量的功率强度最小化，或 以最大化两个边带中的频谱分量的功率强度。

公开(公告)号：US07734194B2

公开(公告)日：2010-06-08

申请号：US10555710

申请日：2005-03-17

申请人： Kazushige Yonenaga ,  Mikio Yoneyama ,  Masahito Tomizawa ,  Akira Hirano ,  Shoichiro Kuwahara ,  Tomoyoshi Kataoka ,  Akihide Sano ,  Gentaro Funatsu

发明人： Kazushige Yonenaga ,  Mikio Yoneyama ,  Masahito Tomizawa ,  Akira Hirano ,  Shoichiro Kuwahara ,  Tomoyoshi Kataoka ,  Akihide Sano ,  Gentaro Funatsu

IPC分类号： H04B10/06

CPC分类号： H04B10/58 ,  H04B10/5051 ,  H04B10/5055 ,  H04B10/50575 ,  H04B10/54 ,  H04B10/66

摘要： An optical transmission system is provided in which the optimum operating point of a Mach-Zehnder interferometer, matched to the optical frequency of the light source on the transmitting side, can be set. The optical receiver (2) has an infinitesimal-modulated signal component detection circuit (222), which uses the signal train output from a balanced detection circuit (221) to detect the infinitesimal-modulated signal component applied to the phase adjustment terminal (201) of an MZI (200) by an infinitesimal-modulated signal oscillation circuit (224); a synchronous detection circuit (223), which synchronously detects the infinitesimal-modulated signals output from the infinitesimal-modulated signal component detection circuit (222) and infinitesimal-modulated signal oscillation circuit (224) and detects the error signal component arising from the shift between the optical signal carrier frequency and the optical frequency characteristic of the MZI (200); and a controller (207), which outputs a control signal to adjust the phase difference between two split optical signals output from the MZI (200) so as to correct the shift amount.

摘要翻译： 提供了一种光传输系统，其中可以设置与发射侧的光源的光频率相匹配的马赫 - 曾德干涉仪的最佳工作点。 光接收器（2）具有无穷小调制信号分量检测电路（222），其使用从平衡检测电路（221）输出的信号串来检测施加到相位调整端子（201）的无穷小调制信号分量， 通过无穷小调制信号振荡电路（224）的MZI（200）; 同步检测电路（223），其同步地检测从无穷小调制信号分量检测电路（222）和无穷小调制信号振荡电路（224）输出的无穷小调制信号，并检测由 MZI（200）的光信号载波频率和光频特性; 以及控制器（207），其输出控制信号以调整从MZI（200）输出的两个分离光信号之间的相位差，以校正偏移量。

公开(公告)号：US08005374B2

公开(公告)日：2011-08-23

申请号：US12723210

申请日：2010-03-12

申请人： Kazushige Yonenaga ,  Mikio Yoneyama ,  Masahito Tomizawa ,  Akira Hirano ,  Shoichiro Kuwahara ,  Tomoyoshi Kataoka ,  Akihide Sano ,  Gentaro Funatsu

发明人： Kazushige Yonenaga ,  Mikio Yoneyama ,  Masahito Tomizawa ,  Akira Hirano ,  Shoichiro Kuwahara ,  Tomoyoshi Kataoka ,  Akihide Sano ,  Gentaro Funatsu

IPC分类号： H04B10/06

CPC分类号： H04B10/58 ,  H04B10/5051 ,  H04B10/5055 ,  H04B10/50575 ,  H04B10/54 ,  H04B10/66

摘要： An optical transmission system is provided in which the optimum operating point of a Mach-Zehnder interferometer, matched to the optical frequency of the light source on the transmitting side, can be set. The optical receiver (2) has an infinitesimal-modulated signal component detection circuit (222), which uses the signal train output from a balanced detection circuit (221) to detect the infinitesimal-modulated signal component applied to the phase adjustment terminal (201) of an MZI (200) by an infinitesimal-modulated signal oscillation circuit (224); a synchronous detection circuit (223), which synchronously detects the infinitesimal-modulated signals output from the infinitesimal-modulated signal component detection circuit (222) and infinitesimal-modulated signal oscillation circuit (224) and detects the error signal component arising from the shift between the optical signal carrier frequency and the optical frequency characteristic of the MZI (200); and a controller (207), which outputs a control signal to adjust the phase difference between two split optical signals output from the MZI (200) so as to correct the shift amount.

摘要翻译： 提供了一种光传输系统，其中可以设置与发射侧的光源的光频率相匹配的马赫 - 曾德干涉仪的最佳工作点。 光接收器（2）具有无穷小调制信号分量检测电路（222），其使用从平衡检测电路（221）输出的信号串来检测施加到相位调整端子（201）的无穷小调制信号分量， 通过无穷小调制信号振荡电路（224）的MZI（200）; 同步检测电路（223），其同步地检测从无穷小调制信号分量检测电路（222）和无穷小调制信号振荡电路（224）输出的无穷小调制信号，并检测由第二调制信号分量检测电路 MZI（200）的光信号载波频率和光频特性; 以及控制器（207），其输出控制信号以调整从MZI（200）输出的两个分离光信号之间的相位差，以校正偏移量。

公开(公告)号：US20100172653A1

公开(公告)日：2010-07-08

申请号：US12723210

申请日：2010-03-12

申请人： Kazushige Yonenaga ,  Mikio Yoneyama ,  Masahito Tomizawa ,  Akira Hirano ,  Shoichiro Kuwahara ,  Tomoyoshi Kataoka ,  Akihide Sano ,  Gentaro Funatsu

发明人： Kazushige Yonenaga ,  Mikio Yoneyama ,  Masahito Tomizawa ,  Akira Hirano ,  Shoichiro Kuwahara ,  Tomoyoshi Kataoka ,  Akihide Sano ,  Gentaro Funatsu

IPC分类号： H04B10/00

CPC分类号： H04B10/58 ,  H04B10/5051 ,  H04B10/5055 ,  H04B10/50575 ,  H04B10/54 ,  H04B10/66

摘要： An optical transmission system is provided in which the optimum operating point of a Mach-Zehnder interferometer, matched to the optical frequency of the light source on the transmitting side, can be set. The optical receiver (2) has an infinitesimal-modulated signal component detection circuit (222), which uses the signal train output from a balanced detection circuit (221) to detect the infinitesimal-modulated signal component applied to the phase adjustment terminal (201) of an MZI (200) by an infinitesimal-modulated signal oscillation circuit (224); a synchronous detection circuit (223), which synchronously detects the infinitesimal-modulated signals output from the infinitesimal-modulated signal component detection circuit (222) and infinitesimal-modulated signal oscillation circuit (224) and detects the error signal component arising from the shift between the optical signal carrier frequency and the optical frequency characteristic of the MZI (200); and a controller (207), which outputs a control signal to adjust the phase difference between two split optical signals output from the MZI (200) so as to correct the shift amount.

摘要翻译： 提供了一种光传输系统，其中可以设置与发射侧的光源的光频率相匹配的马赫 - 曾德干涉仪的最佳工作点。 光接收器（2）具有无穷小调制信号分量检测电路（222），其使用从平衡检测电路（221）输出的信号串来检测施加到相位调整端子（201）的无穷小调制信号分量， 通过无穷小调制信号振荡电路（224）的MZI（200）; 同步检测电路（223），其同步地检测从无穷小调制信号分量检测电路（222）和无穷小调制信号振荡电路（224）输出的无穷小调制信号，并检测由第二调制信号分量检测电路 MZI（200）的光信号载波频率和光频特性; 以及控制器（207），其输出控制信号以调整从MZI（200）输出的两个分离光信号之间的相位差，以校正偏移量。

公开(公告)号：US06865348B2

公开(公告)日：2005-03-08

申请号：US09793954

申请日：2001-02-28

申请人： Yutaka Miyamoto ,  Akira Hirano ,  Kazushige Yonenaga ,  Kenji Sato ,  Hiromu Toba ,  Akihiko Matsuura

发明人： Yutaka Miyamoto ,  Akira Hirano ,  Kazushige Yonenaga ,  Kenji Sato ,  Hiromu Toba ,  Akihiko Matsuura

IPC分类号： H04B10/50 ,  H04B10/508 ,  H04B10/04 ,  H04B10/12

CPC分类号： H04B10/5055 ,  H04B10/505 ,  H04B10/5051 ,  H04B10/508

摘要： A system which improves wavelength tolerance, compensates dispersion in a simple way, reduces limitation of the fiber input power is disclosed. The operation includes receiving a clock signal from a system clock source; modulating a single mode optical signal based on the clock signal and generating an optical pulse signal having two longitudinal modes, the frequency interval thereof being n×B, n being a natural number and B being a transmission speed; generating a partial response signal by converting a binary NRZ signal from a digital signal source in synchronism with the system clock source; and modulating the optical pulse signal based on the partial response signal, and outputting a binary RZ modulated signal. The binary RZ modulated signal is input into a receiver, where two partial response components in the optical spectra of the input signal are divided, and one or both of the components are received.

摘要翻译： 提高波长公差的系统以简单的方式补偿色散，减少了光纤输入功率的限制。 该操作包括从系统时钟源接收时钟信号; 基于时钟信号调制单模光信号并产生具有两个纵模的光脉冲信号，其频率间隔为n×B，n为自然数，B为传输速度; 通过与系统时钟源同步地从数字信号源转换二进制NRZ信号来产生部分响应信号; 并根据部分响应信号调制光脉冲信号，并输出二进制RZ调制信号。 二进制RZ调制信号被输入到接收机中，其中输入信号的光谱中的两个部分响应分量被分割，并且接收一个或两个分量。

公开(公告)号：US20130328013A1

公开(公告)日：2013-12-12

申请号：US14001342

申请日：2011-03-23

申请人： Tetsuhiko Inazu ,  Cyril Pernot ,  Akira Hirano

发明人： Tetsuhiko Inazu ,  Cyril Pernot ,  Akira Hirano

IPC分类号： H01L33/10

CPC分类号： H01L33/10 ,  H01L33/32 ,  H01L33/382 ,  H01L33/405 ,  H01L2933/0016

摘要： A nitride semiconductor ultraviolet light-emitting element is formed by laminating at least an n-type cladding layer configured of an n-type AlGaN semiconductor layer, an active layer including an AlGaN semiconductor layer having band gap energy of 3.4 eV or larger, and a p-type cladding layer configured of a p-type AlGaN semiconductor layer. A p-type contact layer configured of a p-type AlGaN semiconductor layer that absorbs ultraviolet light emitted from the active layer is formed on the p-type cladding layer. The p-type contact layer has an opening portion penetrating through to a surface of the p-type cladding layer. A p-electrode metal layer that makes Ohmic contact or non-rectifying contact with the p-type contact layer is formed on the p-type contact layer so as not to completely block the opening portion. A reflective metal layer for reflecting the ultraviolet light is formed at least on the opening portion and covers the surface of the p-type cladding layer that is exposed through the opening portion either directly or through a transparent insulating layer that allows the ultraviolet light to pass therethrough.

摘要翻译： 氮化物半导体紫外线发光元件是通过层叠由n型AlGaN半导体层构成的至少n型包覆层，包含具有3.4eV以上的带隙能量的AlGaN半导体层的有源层，以及 p型覆层，由p型AlGaN半导体层构成。 在p型覆层上形成由p型AlGaN半导体层构成的p型接触层，该p型接触层吸收从有源层发射的紫外线。 p型接触层具有穿透p型包层的表面的开口部。 在p型接触层上形成与p型接触层进行欧姆接触或非整流接触的p电极金属层，以不完全阻挡开口部。 至少在开口部分上形成用于反射紫外光的反射金属层，并且通过开口部分直接或通过允许紫外光通过的透明绝缘层覆盖p型包覆层的表面 通过。

公开(公告)号：US08283096B2

公开(公告)日：2012-10-09

申请号：US12550913

申请日：2009-08-31

申请人： Wataru Yamada ,  Katsumi Nukada ,  Masahiro Iwasaki ,  Akira Hirano ,  Takatsugu Doi

发明人： Wataru Yamada ,  Katsumi Nukada ,  Masahiro Iwasaki ,  Akira Hirano ,  Takatsugu Doi

IPC分类号： G03G5/047

CPC分类号： G03G5/075 ,  G03G5/076 ,  G03G5/14769 ,  G03G5/14786 ,  G03G5/14791 ,  G03G5/14795 ,  G03G2215/00957

摘要： An electrophotographic photoreceptor comprising: a conductive substrate; a photosensitive layer formed on the conductive substrate; and an outermost surface layer that is a layer made of a cured material of a composition including at least one compound represented by the following formula (I) and at least one compound having charge transportability and an azo group: wherein in formula (I), F represents an n-valent organic group having a hole transporting property, R represents a hydrogen atom or an alkyl group, L represents a divalent organic group, n represents an integer of 1 or more, and j represents 0 or 1.

摘要翻译： 一种电子照相感光体，包括：导电基底; 形成在所述导电基板上的感光层; 以及最外表面层，其是由包含至少一种由下式（I）表示的化合物和至少一种具有电荷传输性的化合物和偶氮基团的组合物的固化材料制成的层，其中在式（I）中， F表示具有空穴传输性的n价有机基团，R表示氢原子或烷基，L表示二价有机基团，n表示1以上的整数，j表示0或1。

公开(公告)号：US07715717B2

公开(公告)日：2010-05-11

申请号：US10564461

申请日：2004-09-03

申请人： Werner Weiershausen ,  Arnold Mattheus ,  Ralph Leppla ,  Yutaka Miyamoto ,  Akira Hirano ,  Yoshiaki Kisaka

发明人： Werner Weiershausen ,  Arnold Mattheus ,  Ralph Leppla ,  Yutaka Miyamoto ,  Akira Hirano ,  Yoshiaki Kisaka

IPC分类号： H04J14/06

CPC分类号： H04B10/2569 ,  G01M11/336

摘要： The present invention proposes a method whereby during a specified/specifiable observation period (Ttotal) , the polarization states of optical transmission system and/or the optical signals transmitted by the optical transmission system are changed by applying a targeted intervention in at least one position of the transmission line, and at a second position which is interposed at least one place downstream from the first position of the optical transmission line, a specified/specifiable signal characteristic (BER) is qualitatively measured and checked for adherence to a specified/specifiable threshold condition (BERth) and the PMD-induced outage probability of the optical transmission system is calculated on the basis of the ratio between the length of that share of the time (Tout), during which the measured signal characteristic fails to meet the threshold condition (BERth), to the length of the observation period (Ttotal).

摘要翻译： 本发明提出一种方法，在特定/可指定的观察期（T total）期间，通过在至少一个位置上施加目标干预来改变由光传输系统传输的光传输系统和/或光信号的偏振状态 传输线，并且在位于光传输线的第一位置下游的至少一个位置的第二位置处，定性地测量并检查指定的/可指定的信号特性（BER）以遵守指定的/可指定的阈值条件 （BERth），并且基于该时间段（Tout）的长度之间的比率来计算光传输系统的PMD导致的中断概率，其中测量的信号特性不能满足阈值条件（BERth） ），到观察期的长度（T total）。

公开(公告)号：US07361948B2

公开(公告)日：2008-04-22

申请号：US10550824

申请日：2004-03-23

申请人： Akira Hirano ,  Satoshi Kamiyama ,  Hiroshi Amano ,  Isamu Akasaki

发明人： Akira Hirano ,  Satoshi Kamiyama ,  Hiroshi Amano ,  Isamu Akasaki

IPC分类号： H01L31/062

CPC分类号： G02B5/284

摘要： In order to provide a filter device capable of maintaining stable optical characteristics for an extended period of time and to provide also a photosensor using the filter device, a photosensor having a filter function includes a filter device having a colored glass filter and configured for permitting transmission of light of a predetermined wavelength range including a detection target wavelength range and a light receiving device for receiving the light transmitted through the filter device. The filter device includes a first interference filter structure comprised of a plurality of light transmitting layers stacked on each other, the first interference filter structure being deposited on a face of the colored glass filter. The light receiving device includes a semiconductor photodetector structure having one or more semiconductor layers, a light receiving area being formed in the one or more semiconductor layers within the semiconductor photodetector structure. The one or more semiconductor layers forming the semiconductor photodetector structure contain InxAlyGa1-x-yN (0≦x≦0.21, 0≦y≦1).

摘要翻译： 为了提供能够延长长时间保持稳定的光学特性并且还提供使用滤光器装置的光传感器的滤光器装置，具有滤光器功能的光传感器包括具有彩色玻璃滤光器并被配置为允许透射的滤光器装置 包括检测目标波长范围的预定波长范围的光和用于接收透过过滤装置的光的光接收装置。 滤波器装置包括由彼此堆叠的多个透光层组成的第一干涉滤光器结构，第一干涉滤光器结构沉积在着色玻璃滤光片的表面上。 光接收装置包括具有一个或多个半导体层的半导体光电检测器结构，在半导体光电检测器结构内的一个或多个半导体层中形成有光接收区域。 形成半导体光电检测器结构的一个或多个半导体层包含In（x）Al（x，y） ，0 <= y <= 1）。

公开(公告)号：US05998046A

公开(公告)日：1999-12-07

申请号：US968297

申请日：1997-11-12

申请人： Hiroshi Tada ,  Hiroyuki Endoh ,  Akira Hirano ,  Koji Utsugi

发明人： Hiroshi Tada ,  Hiroyuki Endoh ,  Akira Hirano ,  Koji Utsugi

IPC分类号： H05B33/22 ,  C09K11/06 ,  H01L51/00 ,  H01L51/30 ,  H01L51/50 ,  H05B33/12 ,  H05B33/13

CPC分类号： H01L51/5012 ,  H01L51/0059 ,  H01L2251/308 ,  H01L51/0081 ,  Y10S428/917

摘要： An organic thin film electroluminescent device has at least an organic thin film provided between an anode and a cathode,wherein the organic thin film includes a compound which is represented by a general formula (I): ##STR1## where Ar.sup.1, Ar.sup.2, Ar.sup.3, Ar.sup.4, Ar.sup.5, and Ar.sup.6 are selected from the group consisting of non-substituted phenyl groups and phenyl groups substituted with at least a substituent which is selected from the group consisting of alkyl groups having 1-4 carbon atoms, alkoxyl groups having 1-4 carbon atoms, amino groups, alkyl amino groups having 1-4 carbon atoms, dialkyl amino groups having 1-4 carbon atoms, alkyl thio groups having 1-4 carbon atoms, halogens, and halogeno alkyl groups having 1-4 carbon atoms, and R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 are selected from the group consisting of hydrogen and methyl groups.

摘要翻译： 有机薄膜电致发光器件至少具有设置在阳极和阴极之间的有机薄膜，其中有机薄膜包括由通式（I）表示的化合物：其中Ar1，Ar2，Ar3，Ar4，Ar5 ，Ar 6选自非取代苯基和被至少一个被选自具有1-4个碳原子的烷基，具有1-4个碳原子的烷氧基的取代基取代的苯基， 氨基，具有1-4个碳原子的烷基氨基，具有1-4个碳原子的二烷基氨基，具有1-4个碳原子的烷基硫基，卤素和具有1-4个碳原子的卤代烷基，R1，R2 ，R 3，R 4，R 5和R 6选自氢和甲基。