专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

71. 发明申请

US20050018995A1 Wavelength stabilizing apparatus and control method 失效
公开(公告)号：US20050018995A1
公开(公告)日：2005-01-27
申请号：US10712368
申请日：2003-11-12
申请人： Chii-How Chang , Sean Chang
发明人： Chii-How Chang , Sean Chang
IPC分类号： G01J9/02 , G02B6/00 , G02F2/00 , H01S3/13 , H01S5/0683 , H01S5/0687 , H04B10/50 , H04B10/572 , H04J14/02
CPC分类号： H04B10/504 , G01J9/0246 , G01J2009/0257 , H01S3/1305 , H01S5/0683 , H01S5/0687 , H04B10/572
摘要： A wavelength stabilizing apparatus utilized in an optical communication system for controlling a light wave output from a tunable optical component is disclosed. The wavelength stabilizing apparatus includes a coarse-tuning element, a fine-tuning element, and a servo element. When the wavelength stabilizing apparatus is used, the light wave output from the tunable optical component is directed into the coarse-tuning element and the fine-tuning element, respectively, and then transformed into electric signals to be received by the servo element. Particularly, the electric signals from the coarse-tuning element are served as basis for coarse-tuning and channel recognition of the light wave output from the tunable optical component while the electric signals from the fine-tuning element are served for fine-tuning and servo control of the light wave output from the tunable optical component. These electric signals are also processed with a logical operation to obtain a control signal for controlling the tunable optical component.

72. 发明申请

US20050017260A1 Quantum dots of group IV semiconductor materials 有权
标题翻译： IV族半导体材料的量子点
公开(公告)号：US20050017260A1
公开(公告)日：2005-01-27
申请号：US10892946
申请日：2004-07-16
申请人： Howard Lee
发明人： Howard Lee
IPC分类号： G02B6/12 , G02B6/122 , G02F1/017 , G02F1/35 , G02F1/355 , G02F1/365 , G02F2/00 , H01L21/20 , H01L29/12 , H01L29/16 , H01L33/20 , H01L33/34 , H01L33/00 , H01L21/31
CPC分类号： B82Y20/00 , B82Y10/00 , G02B6/122 , G02B6/1225 , G02B2006/12097 , G02B2006/12145 , G02B2006/12147 , G02B2006/12159 , G02B2006/12195 , G02F1/3515 , G02F1/3517 , G02F1/3521 , G02F1/3556 , G02F1/365 , G02F2001/01791 , G02F2001/217 , G02F2002/006 , G02F2202/32 , G02F2202/36 , H01L29/127 , H01L29/16 , H01L29/1602 , H01L33/20 , H01L33/34 , Y10S977/814
摘要： The invention relates to a quantum dot. The quantum dot comprises a core including a semiconductor material Y selected from the group consisting of Si and Ge. The quantum dot also comprises a shell surrounding the core. The quantum dot is substantially defect free such that the quantum dot exhibits photoluminescence with a quantum efficiency that is greater than 10 percent.
摘要翻译：本发明涉及量子点。量子点包括包含选自Si和Ge的半导体材料Y的芯。量子点还包括围绕芯的外壳。量子点基本上是无缺陷的，使得量子点显示出具有大于10％的量子效率的光致发光。

73. 发明授权

US06847475B2 Optical signal processor and method thereof 失效
标题翻译：光信号处理器及其方法
公开(公告)号：US06847475B2
公开(公告)日：2005-01-25
申请号：US10727971
申请日：2003-12-03
申请人： Michiaki Hayashi , Hideaki Tanaka
发明人： Michiaki Hayashi , Hideaki Tanaka
IPC分类号： G02F1/015 , G02F1/225 , G02F2/00 , H01S5/50 , H04B10/07 , H04B10/2507 , H04B10/516 , H04B10/524 , H04B10/564 , H04B10/61 , G02F1/01
CPC分类号： H04B10/299 , G02F1/225 , G02F2/004 , G02F2002/006 , H04B10/2914
摘要： An optical signal processor comprises a first input terminal for a pulse signal light with a signal wavelength, a second input terminal for a probe light with, probe wavelength different from the signal wavelength, a first splitter to split the probe light into two portions, an XPM optical device to modulate the one portion of the split output lights from the splitter, a second splitter to split light with the probe wavelength phase-modulated by the XPM optical device into two portions, a first combiner to combine the other portion of the split output lights from the first splitter with the one portion of the split output lights from the second splitter, and a second combiner to combine the other portion of the split output lights from the second splitter with the output light from the first combiner.
摘要翻译：光信号处理器包括用于具有信号波长的脉冲信号光的第一输入端，用于具有不同于信号波长的探测波长的探测光的第二输入端，将探测光分成两部分的第一分离器，XPM 光学装置，用于调制来自分离器的分离输出光的一部分;第二分离器，将具有由XPM光学装置相位调制的探针波长的光分离成两部分;第一组合器，组合分割输出的另一部分; 来自第一分离器的来自第二分离器的分离输出的一部分的光和第二组合器将来自第二分离器的分离输出光的另一部分与来自第一组合器的输出光组合。

74. 发明授权

US6101027A All-optical wavelength converter using a semiconductor optical amplifier and a polarization interferometer 有权
标题翻译：全光波长转换器采用半导体光放大器和偏振干涉仪
公开(公告)号：US6101027A
公开(公告)日：2000-08-08
申请号：US145545
申请日：1998-09-02
申请人： Hak Kyu Lee , Kyong Hon Kim , Joon Tae Ahn , Min Yong Jeon , Dong Sung Lim , Ho Young Kim
发明人： Hak Kyu Lee , Kyong Hon Kim , Joon Tae Ahn , Min Yong Jeon , Dong Sung Lim , Ho Young Kim
IPC分类号： G02F2/00 , H01S5/062 , H01S5/50 , H01S3/00
CPC分类号： G02F2/004 , H01S5/50
摘要： The present invention discloses an all-optical wavelength converter using a semiconductor optical amplifier and a polarization interferometer. The all-optical wavelength converter using a semiconductor optical amplifier and a polarization interferometer including a wavelength converter which modulates a probe light into a inverting waveform to a signal light and outputs the modulated light by using cross gain modulation, a phenomenon that occurs while the signal light and the probe light pass together through an optical splitter/combiner, a semiconductor optical amplifier and a filter at the same time, a polarization interferometer which makes the probe light outputted from the wavelength converter and having the inverting waveform to the signal light undergo a double-refraction so that a predetermined time split occurs on it and provides a non-inverting wavelength conversion and suppresses the slow XGM components in the converted outputs due to the slow carrier recombination time.
摘要翻译：本发明公开了一种使用半导体光放大器和偏振干涉仪的全光波长转换器。使用半导体光放大器的全光波长转换器和包括波长转换器的偏振干涉仪，其将探测光调制为信号光的反相波形，并通过使用交叉增益调制输出调制光，该信号在信号光和探测光同时通过光分路器/组合器，半导体光放大器和滤波器一起通过，使得从波长转换器输出并且具有对信号光的反相波形的探测光的偏振干涉仪经历双折射使得在其上发生预定的时间分割并且提供非反相波长转换，并且由于载流子复合时间较慢而抑制转换输出中的慢XGM分量。

75. 发明授权

US6057950A Synchronous polarization and phase modulation for improved performance of optical transmission systems 有权
标题翻译：同步极化和相位调制，以改善光传输系统的性能
公开(公告)号：US6057950A
公开(公告)日：2000-05-02
申请号：US248192
申请日：1999-02-09
申请人： Neal S. Bergano
发明人： Neal S. Bergano
IPC分类号： G02F1/01 , G02F2/00 , H04B10/00 , H04B10/135 , H04B10/04
CPC分类号： H04B10/532
摘要： A method and apparatus is provided for modulating the polarization of an optical signal. A polarization modulator receives an optical signal onto which data has been modulated at a predetermined frequency. The polarization modulator modulates the state of polarization of the optical signal at a frequency phase locked and equal to the same predetermined frequency at which the data is modulated onto the optical signal. The polarization modulation is performed so that the average value of the state of polarization over each modulation cycle is substantially equal to zero.
摘要翻译：提供了一种用于调制光信号的偏振的方法和装置。偏振调制器接收以预定频率调制数据的光信号。偏振调制器调制光信号的偏振状态，频率锁相并等于将数据调制到光信号上的相同预定频率。执行偏振调制，使得每个调制周期上的偏振状态的平均值基本上等于零。

76. 发明授权

US6043927A Modulation instability wavelength converter 失效
标题翻译：调制不稳定波长转换器
公开(公告)号：US6043927A
公开(公告)日：2000-03-28
申请号：US8179
申请日：1998-01-16
申请人： Mohammed N. Islam
发明人： Mohammed N. Islam
IPC分类号： G02F1/39 , G02F2/00 , G02F1/35
CPC分类号： G02F2/004
摘要： Disclosed is an all waveguide fiber wavelength converter which makes use of modulational instability to convert signal wavelength over a conversion bandwidth while maintaining low pump laser power relative to other wavelength conversion devices such as those which make use of four wave mixing. The device is operated in the anomalous dispersion region of the waveguides and the zero dispersion of the waveguide in which conversion occurs is less than the pump wavelength so that conversion may occur for signal wavelengths above and below the zero dispersion wavelength. Conversion efficiency is in the range of 25 dB to 30 dB.
摘要翻译：公开了一种全波导光纤波长转换器，其利用调制不稳定性在转换带宽上转换信号波长，同时保持相对于使用四波混频的其它波长转换装置的较低泵浦激光功率。该器件在波导的异常色散区域中工作，并且其中发生转换的波导的零色散小于泵浦波长，使得在零色散波长之上和之下的信号波长可能发生转换。转换效率在25dB至30dB的范围内。

77. 发明授权

US6008931A Optical frequency generator 失效
标题翻译：光频发生器
公开(公告)号：US6008931A
公开(公告)日：1999-12-28
申请号：US945135
申请日：1997-10-20
申请人： Clemens von Helmolt , Udo Krueger
发明人： Clemens von Helmolt , Udo Krueger
IPC分类号： G01J9/02 , G02F1/35 , G02F2/00 , H01S3/00 , H01S3/139 , H01S3/30 , H01S5/062 , H01S5/0687
CPC分类号： H01S3/0057 , G01J9/02 , G02F1/3515 , G02F2203/56 , H01S3/1398 , H01S3/302 , H01S5/0622 , H01S5/0687
摘要： An optical frequency generator provided with an optical comb generator for generating a plurality of frequencies including a central frequency and side bands spaced by a frequency transmitter. The central frequency is adjustably combined with the spectral component of a reference light source. Modification of frequency differences between the central frequency and the reference light source and modification of the transmission frequency of the frequency transmitter displaces the frequency comb of the comb generator or alters its spectral width. A heterodyne receiver connected to the output of the comb generator and a test light source of unknown frequency is provided for determining the frequency of the latter.
摘要翻译： PCT No.PCT / DE96 / 00725 Sec。 371日期：1997年10月20日 102（e）1997年10月20日日期PCT 1996年4月18日PCT PCT。出版物WO96 / 33535 日期：1996年10月24日一种具有光梳发生器的光频发生器，用于产生包括由频率发射器间隔开的中心频率和边带的多个频率。中心频率可调节地与参考光源的光谱分量组合。修改中心频率和参考光源之间的频率差异以及频率发射机的传输频率的修改会使梳状发生器的频率梳变化或改变其频谱宽度。提供连接到梳发生器的输出的外差接收器和未知频率的测试光源，用于确定后者的频率。

78. 发明授权

US05999293A Optical switch 失效
标题翻译：光开关
公开(公告)号：US05999293A
公开(公告)日：1999-12-07
申请号：US875174
申请日：1997-07-23
申请人： Robert J Manning
发明人： Robert J Manning
IPC分类号： G02F1/313 , G02F1/35 , G02F2/00 , H01S3/10 , H04J14/08 , H04B10/00 , H04J14/02
CPC分类号： G02F1/3517 , G02F2002/006 , H04J14/08
摘要： An optical switch includes a semiconductor gain medium and inputs for an optical control signal applied to the semiconductor gain medium. The switch has a pair of arms (31, 32) arranged in a Mach-Zehnder configuration. A semiconductor gain medium (SOA1, SOA2) is connected in each arm. A fixed phase shifting element PE is also connected in one arm. Control signals are applied to each of the semiconductor gain media. There is a delay between the control signals selected so that a desired one of the optical pulses experiences a differential phase shift and so we switch to a different output of the multiplexer. In one example, the semiconductor gain media are provided by discrete semiconductor devices sandwiched between a pair of planar substrate on which waveguides forming the other components of the switch are formed. The switch may be used for demultiplexing OTDM signals.
摘要翻译： PCT No.PCT / GB96 / 00072 Sec。 371日期1997年7月23日 102（e）日期1997年7月23日PCT 1996年1月16日PCT PCT。公开号WO96 / 22562 日期1996年7月25日光开关包括半导体增益介质和用于施加到半导体增益介质的光控制信号的输入。开关具有以Mach-Zehnder构型布置的一对臂（31,32）。在每个臂中连接有半导体增益介质（SOA1，SOA2）。固定相移元件PE也连接在一个臂上。控制信号被施加到每个半导体增益介质。所选择的控制信号之间存在延迟，使得期望的一个光脉冲经历差分相移，因此我们切换到多路复用器的不同输出。在一个示例中，半导体增益介质由夹在形成开关的其他部件的波导形成的一对平面基板之间的分立半导体器件提供。该开关可用于解复用OTDM信号。

79. 发明授权

US5973820A FM modulation device 失效
标题翻译： FM调制装置
公开(公告)号：US5973820A
公开(公告)日：1999-10-26
申请号：US080312
申请日：1998-05-18
申请人： Masaru Fuse , Kuniaki Utsumi , Seiichiro Kawashima , Koji Kikushima
发明人： Masaru Fuse , Kuniaki Utsumi , Seiichiro Kawashima , Koji Kikushima
IPC分类号： G02F2/00 , H03C3/36 , H04B10/2507 , H04B10/516 , H04B10/54 , H04B10/548 , H04B10/564 , H04B10/572 , H04B10/61 , G02F1/23
CPC分类号： H03C3/36
摘要： A branch portion 107 branches a modulating signal into two signals in opposite phases. One of them is inputted to an FM laser element 102. The other one is adjusted in propagation delay and in amplitude and then is inputted to an IM suppressing laser element 110. The FM laser element 102 outputs an optical-frequency-modulated signal around a wavelength .lambda.1, whose optical intensity is also modulated. A local light source 104 outputs light at a wavelength .lambda.0, which is different from the oscillation wavelength .lambda.1 of the FM laser element 102 by .DELTA..lambda.. The IM suppressing laser element 110 outputs an optical-intensity-modulated signal. The three lights are combined and inputted to a photodetection portion 106. The photodetection portion 106 applies a heterodyne detection to inputted lights to output an FM modulated signal corresponding to a beat signal of the outputted optical signal from the FM laser element 102 and the outputted light from the local light source 104 at frequency corresponding to the difference .DELTA..lambda. between the original two wavelengths, and also cancels the average-value variation component in the FM modulated signal with an electrical signal produced by square-law detecting the optical-intensity-modulated signal from the IM suppressing laser element 110, thereby producing an ideal FM modulated signal.
摘要翻译：分支部分107将调制信号分成相反相位的两个信号。其中一个被输入到FM激光元件102.另一个被调整为传播延迟和幅度，然后被输入到IM抑制激光元件110.MF激光元件102输出一个光频调制信号波长λ1，其光强度也被调制。局部光源104输出波长λ0的光，其与FM激光元件102的振荡波长λ1不同，通过DELTAλ。 IM抑制激光元件110输出光强度调制信号。三个光被组合并输入到光检测部分106.光检测部分106对输入的光进行外差检测，以输出对应于来自FM激光元件102的输出光信号的拍频信号的FM调制信号和输出的光从本地光源104以与原始两个波长之间的差ΔTAλ相对应的频率，并且还利用通过检测光强度调制的平方律产生的电信号来消除FM调制信号中的平均值变化分量来自IM抑制激光元件110的信号，从而产生理想的FM调制信号。

80. 发明授权

US5886804A Optical transmission system employing single mode optical transmission fiber 失效
标题翻译：采用单模光纤传输光纤的光传输系统
公开(公告)号：US5886804A
公开(公告)日：1999-03-23
申请号：US627722
申请日：1996-04-01
申请人： Hiroshi Onaka , Hideyuki Miyata , Kazue Otsuka
发明人： Hiroshi Onaka , Hideyuki Miyata , Kazue Otsuka
IPC分类号： G02F2/00 , H04B10/2507 , H04B10/2525 , H04B10/2557 , H04B10/54 , H04B10/548 , H04B10/58 , H04B10/00
CPC分类号： H04B10/2525 , H04B2210/256
摘要： In an optical transmission system for intensively modulating an optical wavelength with a sending signal to be transmitted and optically amplifying a modulated optical signal, a wavelength dispersion characteristic of a single mode optical transmission line can be suitably compensated. The optical transmission system comprises a modulating circuit for modulating optical phases or frequencies of the optical wavelength with the sending signal to set a chirping parameter .alpha. to -0.65 to -1.3, and outputting an modulated signal; an optical transmission line having wavelength residual dispersion value of 16 to 21 ps/nm/Km for transmitting the modulated signal; and a dispersion compensating circuit for compensating wavelength dispersion value, of the optical transmission line, which is set to approximately +500 to +1200 ps/nm when an input optical power is more than -5 dBm.
摘要翻译：在利用要发送的发送信号和光学放大调制的光信号来集中调制光波长的光传输系统中，可以适当地补偿单模光传输线的波长色散特性。光传输系统包括调制电路，用于利用发送信号调制光学相位或光波长的频率，以将啁啾参数α设置为-0.65至-1.3，并输出调制信号; 具有用于发送调制信号的波长残留色散值为16〜21ps / nm / Km的光传输线路; 以及用于补偿光传输线的波长色散值的色散补偿电路，当输入光功率大于-5dBm时，其被设置为大约+500至+1200ps / nm。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式