利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

61 条记录 (耗时 0.044 秒)

    Method and device for switching, amplification, controlling and modulation of optical radiation (variants)
    6.
    发明申请
    Method and device for switching, amplification, controlling and modulation of optical radiation (variants) 审中-公开
    用于光学辐射的切换，放大，控制和调制的方法和装置（变体）

    公开(公告)号：US20030103745A1

    公开(公告)日：2003-06-05

    申请号：US10300811

    申请日：2002-11-20

    申请人： Cleomen, Ltd.

    发明人： Alexandr Alexandrovich Maier

    IPC分类号： G02B006/00 ,  G02F001/01 ,  G02B006/35

    CPC分类号： B82Y20/00 ,  G02F1/01708 ,  G02F1/3515 ,  G02F1/3521 ,  G02F1/365 ,  G02F3/00

    摘要： The invention has improved parameters when compared with prior art devices, pump power was decreased by four orders of magnitude and amplification of signal was increased by two orders of magnitude. The main features of the invention are the following. A nonlinear optical waveguide is made on the basis of a layered MQW-type structure, where unidirectional distributively coupled waves (Ip, Is), e.g. coupled waves having orthogonal polarizations, interact. The wavelength of optical radiation is chosen close to the wavelength of resonance in the structure Input/output elements, taking into account the asymmetry of the cross section of the nonlinear optical waveguide, are mounted at the input and output of the nonlinear waveguide making up a compact nonlinear-optic module. A small electric current is injected across said nonlinear optical waveguide through electrodes, so as to increase the gain and decrease the pump optical power to a high degree. The device also contains a Peltier element and temperature sensor which help to obtain a low predetermined critical power of pump radiation necessary for large signal gain and to set up the necessary operation mode. The method of mounting and the construction of the optical elements of the device are also claimed. The technological reserves can improve already achieved record parameters. The device may be used as all-optical transistor, all-optical switch, logic element and devices based thereon.

    摘要翻译： 本发明与现有技术的装置相比具有改进的参数，泵功率降低了四个数量级，信号的放大增加了两个数量级。 本发明的主要特征如下。 基于分层MQW型结构制造非线性光波导，其中单向分布耦合波（Ip，Is），例如， 具有正交偏振的耦合波相互作用。 考虑到非线性光波导的截面的不对称性，光学波长的波长被选择为接近于结构输入/输出元件中的谐振波长，安装在构成非线性波导的非线性波导的输入和输出 紧凑的非线性光学模块。 通过电极在所述非线性光波导上注入小电流，从而提高增益并降低泵浦光功率。 该器件还包含一个珀耳帖元件和温度传感器，有助于获得大信号增益所需的泵浦辐射的预定临界功率，并建立必要的操作模式。 还要求保护装置的光学元件的安装方法和结构。 技术储备可以提高已经实现的记录参数。 该器件可以用作全光晶体管，全光开关，逻辑元件和基于其的器件。

    Photon transistors
    7.
    发明申请
    Photon transistors 失效

    公开(公告)号：US20030053785A1

    公开(公告)日：2003-03-20

    申请号：US10197937

    申请日：2002-07-18

    发明人： Seng-Tiong Ho

    IPC分类号： G02B006/10 ,  G02F001/00

    CPC分类号： B82Y20/00 ,  G02B6/12007 ,  G02B6/1225 ,  G02B6/125 ,  G02B2006/12176 ,  G02F1/3521 ,  G02F3/00

    摘要： A light transfer device is provided that includes a first light pathway having a first input and a first output and a second light pathway having a second output. The second light pathway is coupled to the first light pathway, and light from the first input is transferable between the first and second light pathways. An active medium is positioned along one of the first and second light pathways, and the active medium is capable of receiving optical energy that modifies the active medium so that the active medium controls the transfer of light between the first and second pathways.

    Farby-perot laser with wavelength control
    8.
    发明申请
    Farby-perot laser with wavelength control 有权
    Farby-perot激光器具有波长控制

    公开(公告)号：US20020196826A1

    公开(公告)日：2002-12-26

    申请号：US10064002

    申请日：2002-06-03

    申请人： Nanovis LLC

    发明人： Robert J. Mears ,  Augustin Yiptong ,  Adam D. Cohen

    IPC分类号： H01S005/00 ,  H01S003/063 ,  H01S003/08

    CPC分类号： G02B6/02085 ,  G02B5/18 ,  G02B6/02057 ,  G02B6/122 ,  G02B2006/12107 ,  G02F1/225 ,  G02F1/2252 ,  G02F1/3136 ,  G02F1/3517 ,  G02F1/3521 ,  G02F1/3558 ,  G02F2001/212 ,  G02F2201/30 ,  G02F2201/307 ,  H01S5/1206 ,  H01S5/125 ,  H01S5/18361

    摘要： A laser device, in particular a semiconductor laser, emitting optical radiation with a defined mode pattern can be produced from a standard Fabry-Perot (FP) laser by post-processing at the wafer level, i.e. before the wafer is separated into individual dies by cleaving/dicing. A sub-cavity is formed within the FP laser cavity. The sub-cavity has a predetermined length and is located between the FP facets. An aperiodic grating composed of a small number of contrast elements, typically less than 10, with predetermined inter-element separations and predetermined spacings relative to the sub-cavity is formed on or in the optical waveguide. The inter-element separations and the spacings relative to the sub-cavity produce a filtering function of the aperiodic grating for optical radiation propagating in the waveguide. The laser device is suitable for telecommunications applications due to its high side-mode-suppression ratio and narrow-linewidth.

    摘要翻译： 可以通过在晶片级进行后处理，即在晶片被分离成单独的裸片之前，从标准的法布里 - 珀罗（FP）激光器产生具有限定模式图案的发射光辐射的激光装置，特别是半导体激光器 切割/切割 在FP激光腔内形成子腔。 子腔具有预定长度并且位于FP面之间。 在光波导上或光波导中形成有由少量对比元件（通常小于10个）组成的非周期性光栅，具有相对于子腔的预定的元件间隔离和预定间隔。 元件间分离和相对于子腔的间隔产生用于波导中传播的光辐射的非周期光栅的滤波函数。 激光器件由于具有高侧模抑制比和窄线宽，适用于电信应用。

    Optical switching apparatus
    9.
    发明申请
    Optical switching apparatus 失效
    光开关装置

    公开(公告)号：US20010048783A1

    公开(公告)日：2001-12-06

    申请号：US09793893

    申请日：2001-02-28

    发明人： Albert Herble ,  Jeremy Allam

    IPC分类号： G02B006/35

    CPC分类号： B82Y20/00 ,  G02F1/01716 ,  G02F1/3515 ,  G02F1/3517 ,  G02F1/3521 ,  H01S5/18302

    摘要： An optical switching apparatus comprises an optically resonant system (3, 12) and a pulse source configuration (1, 2) to direct first and second pulses (P1, P2) of optical radiation into the resonant system, the first pulse (P1) being configured to produce a coherent excitation of the resonant optical system so as to change its optical characteristics and the second pulse (P2) being of a phase to thereafter de-excite the coherent excitation produced by the first pulse. According to the invention, a device (13, 34) driveable externally of the resonant system such as an optical amplifier or a laser, maintains the coherence of the excitation produced by the first pulse until de-excited by the second pulse. The optically resonant system may comprise an optically responsive medium (3) which is capable of being switched into a state of coherent resonance or a resonant cavity.

    摘要翻译： 光学开关装置包括光学谐振系统（3,12）和将光辐射的第一和第二脉冲（P1，P2）引入谐振系统的脉冲源配置（1,2），第一脉冲（P1）是 被配置为产生所述谐振光学系统的相干激励，以便改变其光学特性，并且所述第二脉冲（P2）是相位，从而去激发由所述第一脉冲产生的相干激发。 根据本发明，可以在诸如光放大器或激光器的谐振系统外部驱动的器件（13,34）保持由第一脉冲产生的激励的相干性，直到被第二脉冲去激发。 光学谐振系统可以包括光学响应介质（3），其能够被切换到相干谐振或谐振腔的状态。

    Nonlinear Y-junction waveguide structure
    10.
    发明授权
    Nonlinear Y-junction waveguide structure 失效
    非线性Y结波导结构

    公开(公告)号：US5822480A

    公开(公告)日：1998-10-13

    申请号：US742159

    申请日：1996-11-01

    申请人： Jong-Sool Jeong ,  Seok-Ho Song

    发明人： Jong-Sool Jeong ,  Seok-Ho Song

    IPC分类号： G02B6/122 ,  G02B6/12 ,  G02F1/313 ,  G02F1/35 ,  G02F1/365 ,  G02B6/26 ,  G02B6/42

    CPC分类号： G02F1/3521 ,  G02B2006/1215

    摘要： A nonlinear Y-junction waveguide structure includes a straight linear waveguide, and a nonlinear waveguide partially joined to the linear waveguide and bent through a desired angle at an output end portion thereof, whereby incident light coming into the linear waveguide travels mainly along the linear waveguide when it has a power lower than a predetermined level while traveling mainly along the nonlinear waveguide when it has a power not lower than the predetermined level. The nonlinear Y-junction waveguide structure has an increased branching angle as compared to the conventional completely-operating optical device and exhibits an abrupt switching phenomenon. Accordingly, it is possible to achieve an easy adjustment of the critical power. In this regard, there is no difficulty in the fabrication of the waveguide structure.

    摘要翻译： 非线性Y型结波导结构包括直线型波导和部分地连接到线性波导的非线性波导，并在其输出端部弯曲所需的角度，由此入射到线性波导的入射光主要沿着线性波导 当其功率低于预定水平时，当其具有不低于预定水平的功率时主要沿着非线性波导行进。 与常规的完全操作的光学器件相比，非线性Y形结波导结构具有增加的分支角，并且表现出突然的切换现象。 因此，可以容易地调整临界功率。 在这方面，波导结构的制造没有困难。