Double-pass optical amplifier
    2.
    发明授权
    Double-pass optical amplifier 失效
    双路光放大器

    公开(公告)号:US06456429B1

    公开(公告)日:2002-09-24

    申请号:US09711917

    申请日:2000-11-15

    申请人: Yongan Wu

    发明人: Yongan Wu

    IPC分类号: H01S532

    CPC分类号: H01S5/50 H01S5/10 H01S5/1085

    摘要: Novel optical amplifier designs are disclosed. The optical amplifier generally comprises an amplification section having an anti-reflection coating on a first end face and a reflector optically coupled to a second end face. The amplification section of the amplifier interacts with the input and reflected optical signals to produce an amplified optical signal. The amplification section may include rare earth doped glass amplifiers (e.g., erbium-doped amplifiers), rare earth doped waveguide amplifiers (e.g. erbium-doped waveguide amplifiers), polymer amplifiers or parametric amplifiers. The amplifier may include a waveguide structure proximate the amplification section to confine optical signals within the amplification section and/or guide signals into and out of the amplifier. The amplifier may be combined with optical components for coupling signals between optical fibers and the amplifier. The waveguide may have a modified “V” shape where the “V” with at two legs. At least one leg of the “V” is bent so that both legs intersect the first end face substantially parallel to each other.

    摘要翻译: 公开了新的光放大器设计。 光放大器通常包括放大部分,其具有在第一端面上的防反射涂层和与第二端面光学耦合的反射器。 放大器的放大部分与输入和反射光信号相互作用以产生放大的光信号。 放大部分可以包括稀土掺杂的玻璃放大器(例如,掺铒放大器),稀土掺杂波导放大器(例如掺铒波导放大器),聚合物放大器或参数放大器。 放大器可以包括靠近放大部分的波导结构,以将放大部分内的光信号和/或引导信号限制在放大器内和从放大器输出。 放大器可以与用于耦合在光纤和放大器之间的信号的光学部件组合。 波导可以具有修改的“V”形,其中在两条腿处具有“V”形。 “V”的至少一条腿弯曲,使得两条腿基本上彼此平行地与第一端面相交。

    Safety latch for Raman amplifiers
    3.
    发明授权
    Safety latch for Raman amplifiers 有权
    拉曼放大器的安全锁存器

    公开(公告)号:US06423963B1

    公开(公告)日:2002-07-23

    申请号:US09626092

    申请日:2000-07-26

    申请人: Yongan Wu

    发明人: Yongan Wu

    IPC分类号: G01J104

    摘要: A method and apparatus for shutting off a source of optical power to an optical fiber in the event of a cut in the fiber are disclosed. Embodiments of the invention are particularly suited in fiber optic communications systems that use Raman pumps for signal amplification. Optical power from the pump to a fiber is shut off in response to a change in a supervisor signal provided to a first end of the fiber. The supervisor signal is generally operated in an “always-on” mode to provide for fail-safe operation. The apparatus generally comprises a controller coupled to the source of optical power and means for coupling a supervisor signal, which has been provided to a first end of the fiber, to the controller. The method and/or apparatus may be incorporated into an optical communications system having an optical fiber and two or more hubs coupled to the fiber.

    摘要翻译: 公开了一种在纤维切割的情况下切断光纤的光功率源的方法和装置。 本发明的实施例特别适用于使用拉曼泵进行信号放大的光纤通信系统。 响应于提供给光纤的第一端的监视器信号的变化,关闭从泵到光纤的光功率。 主管信号通常以“永远在线”模式运行,以提供故障安全操作。 该装置通常包括耦合到光功率源的控制器和用于将已经提供给光纤的第一端的监控器信号耦合到控制器的装置。 该方法和/或装置可以并入具有耦合到光纤的光纤和两个或更多个集线器的光通信系统中。

    Optical amplifiers with variable optical attenuation for use in fiber-optic communications systems
    4.
    发明授权
    Optical amplifiers with variable optical attenuation for use in fiber-optic communications systems 有权
    具有可变光衰减的光放大器,用于光纤通信系统

    公开(公告)号:US06377396B1

    公开(公告)日:2002-04-23

    申请号:US09705760

    申请日:2000-11-06

    IPC分类号: H04B1012

    摘要: Optical amplifiers with variable optical attenuators that are adjusted using a sublinear control scheme are provided. Instead of increasing the attenuation of the optical attenuator by Y dBs for each desired Y dBs in decreased optical amplifier gain, the attenuation of the variable optical attenuator is increased by less than Y dBs. This sublinear control scheme improves the noise figure performance of the optical amplifier at the expense of increased gain ripple. The overall performance of the optical amplifier may be improved, particularly in conditions in which the attenuations produced by the variable optical attenuator are relatively large.

    摘要翻译: 提供使用子线性控制方案调整的具有可变光衰减器的光放大器。 在减小的光放大器增益中,不是将光衰减器的衰减增加Y dB,而是可变光衰减器的衰减小于Y dBs。 该子线性控制方案以增加的增益波动为代价改善了光放大器的噪声系数性能。 特别是在由可变光衰减器产生的衰减相对较大的条件下,可以提高光放大器的整体性能。

    Novel method to enhance the computer using and online surfing/shopping experience and methods to implement it
    5.
    发明申请
    Novel method to enhance the computer using and online surfing/shopping experience and methods to implement it 审中-公开
    提高计算机使用和在线冲浪/购物体验和方法的新方法来实现

    公开(公告)号:US20050288820A1

    公开(公告)日:2005-12-29

    申请号:US11142493

    申请日:2005-06-02

    申请人: Yongan Wu Fang Zhao

    发明人: Yongan Wu Fang Zhao

    IPC分类号: G05B15/00 G06F3/048

    CPC分类号: G06F3/0481

    摘要: A novel virtual attendant between an intelligent device and the human being is provided. The said virtual attendant(s) talk, point to items, answer questions, act as a guide, have face emotions, have specific spoken and/or un-spoken body languages, have specific voices and tones, moves, perform stunts, play games, sing and/or dance, or any combination of the above properties. The said virtual attendant can be the image or animation of the human user's friend(s), family member(s), pet(s), favorite star(s), lover(s), or favorite figure(s)/character(s). The intelligent device(s) can be computers, home based devices, office based devices, car based devices, portable devices, and any other devices. The virtual attendant can act as the interface between the device and the human users, perform many functions from answer questions and provide guidance and services.

    摘要翻译: 提供了一种智能设备与人类之间的新颖虚拟助理。 说虚拟话务员讲话,指向项目,回答问题,作为指导,面部情绪,具体的口语和/或未口头的肢体语言,具有特定的声音和音调,移动,执行特技,玩游戏 ,唱歌和/或跳舞,或上述性质的任何组合。 所述虚拟助理可以是人类用户的朋友,家庭成员,宠物,喜爱的明星,情人或喜爱的人物/角色的图像或动画( s)。 智能设备可以是计算机,家庭设备,基于办公室的设备,基于汽车的设备,便携式设备和任何其他设备。 虚拟话务员可以作为设备和人类用户之间的接口,从答案问题中执行许多功能,并提供指导和服务。

    Semiconductor optical amplifier systems
    6.
    发明授权
    Semiconductor optical amplifier systems 失效
    半导体光放大器系统

    公开(公告)号:US06731427B1

    公开(公告)日:2004-05-04

    申请号:US10046236

    申请日:2002-01-16

    申请人: Yongan Wu

    发明人: Yongan Wu

    IPC分类号: H01S300

    摘要: Semiconductor optical amplifier devices and optical amplifiers are provided for handling optical data signals carried on wavelength-division-multiplexing channels in fiber-optic links. The optical amplifiers may have multiple semiconductor optical amplifier devices separated by isolators to reduce backwards scattered light and thereby improve their output power handing capabilities. Waveguide structures on the semiconductor optical amplifier devices may be used to provide lateral light confinement during optical amplification. Nonuniform drive current densities may be used along the lengths of the semiconductor waveguide structures to support increased output powers.

    摘要翻译: 提供半导体光放大器装置和光放大器用于处理在光纤链路中的波分复用信道上承载的光数据信号。 光放大器可以具有由隔离器隔开的多个半导体光放大器装置,以减少反向散射光,从而提高其输出功率处理能力。 可以使用半导体光放大器装置上的波导结构来在光放大期间提供横向光限制。 沿着半导体波导结构的长度可以使用不均匀的驱动电流密度,以支持增加的输出功率。

    Optical amplifiers with age-based pump current limiters
    7.
    发明授权
    Optical amplifiers with age-based pump current limiters 有权
    具有年龄泵电流限制器的光放大器

    公开(公告)号:US06583926B1

    公开(公告)日:2003-06-24

    申请号:US09993946

    申请日:2001-11-27

    申请人: Yongan Wu Jun Ye

    发明人: Yongan Wu Jun Ye

    IPC分类号: H04B1012

    摘要: Optical amplifiers and other optical network equipment for handling optical data signals in fiber-optic communications links are provided. Optical fiber that is pumped by laser diode pumps is used to provide optical gain. The laser diode pumps may be based on laser diode devices that do not have temperature controllers and integral back facet monitors. A control unit may be used to keep track of the age of the laser diode pumps. Information on the age of the pumps may be used to determine the maximum allowable drive current for driving the pumps. Information on the age of the pumps may also be used to select an appropriate drive current level during operation of the pumps.

    摘要翻译: 提供用于处理光纤通信链路中的光数据信号的光放大器和其他光网络设备。 激光二极管泵浦的光纤用于提供光学增益。 激光二极管泵可以基于没有温度控制器和整体式后面监视器的激光二极管装置。 控制单元可用于跟踪激光二极管泵的寿命。 关于泵的年龄的信息可以用于确定用于驱动泵的最大允许驱动电流。 关于泵的年龄的信息也可用于在泵的运行期间选择适当的驱动电流水平。

    Multiwavelength pumps for raman amplifier systems
    8.
    发明授权
    Multiwavelength pumps for raman amplifier systems 有权
    拉曼放大器系统的多波长泵

    公开(公告)号:US06433921B1

    公开(公告)日:2002-08-13

    申请号:US09783395

    申请日:2001-02-15

    IPC分类号: H01S300

    摘要: Multiwavelength Raman pumps for Raman amplifiers are provided. The multiwavelength Raman pumps may be based on semiconductor devices that have multiple source regions, each of which handles pump light at a different wavelength. An optical coupler such as a lens and isolator arrangement or an integral fiber lens may be used to couple pump light from the multiwavelength Raman pump into a fiber. A depolarizer may be used to depolarize the Raman pump light provided by the Raman pump. Gratings may be used to define the lasing wavelengths for the Raman pump. A number of tunable sources may be used on the semiconductor device. A fiber Bragg grating may be used to form an external cavity or coupled cavity arrangement for the semiconductor device.

    摘要翻译: 提供拉曼放大器的多波长拉曼泵。 多波长拉曼泵可以基于具有多个源极区域的半导体器件,每个源极区域处理不同波长的泵浦光。 可以使用诸如透镜和隔离器布置或整体光纤透镜的光耦合器将来自多波长拉曼泵的泵浦光耦合到光纤中。 可以使用去极化器去除由拉曼泵提供的拉曼泵浦光。 光栅可用于定义拉曼泵的激光波长。 可以在半导体器件上使用多个可调谐源。 可以使用光纤布拉格光栅来形成用于半导体器件的外部空腔或耦合谐振腔结构。

    Novel intelligent search engine
    9.
    发明申请
    Novel intelligent search engine 审中-公开
    新型智能搜索引擎

    公开(公告)号:US20070050374A1

    公开(公告)日:2007-03-01

    申请号:US11217148

    申请日:2005-09-01

    申请人: Fang Zhao Yongan Wu

    发明人: Fang Zhao Yongan Wu

    IPC分类号: G06F17/30

    CPC分类号: G06F16/3329

    摘要: A novel intelligent search engine or website are invented to enhance the web surfing practice. A smart search engine or website comprising of resource database, fuzzy logic analyzer, and question generator which can analyze the user input, comparing with internal criteria, and asking user further questions to narrow down the search. The smart search engine or website can show the desired search result link/links, or show compose customized answer page, or show the desired web page directly. The smart search engine or website can comprise of user database which it uses during the search and modifies during the search.

    摘要翻译: 发明了一种新颖的智能搜索引擎或网站,以增强网络冲浪实践。 智能搜索引擎或网站,包括资源数据库,模糊逻辑分析器和问题生成器,可以分析用户输入,与内部标准进行比较,并向用户询问进一步的问题来缩小搜索范围。 智能搜索引擎或网站可以显示所需的搜索结果链接/链接,或显示撰写自定义的答案页面,或直接显示所需的网页。 智能搜索引擎或网站可以包括其在搜索期间使用的用户数据库,并且在搜索期间进行修改。

    Pumps for Raman amplifier systems
    10.
    发明授权
    Pumps for Raman amplifier systems 失效
    拉曼放大器系统泵

    公开(公告)号:US06625347B1

    公开(公告)日:2003-09-23

    申请号:US09798927

    申请日:2001-03-06

    申请人: Yongan Wu

    发明人: Yongan Wu

    IPC分类号: H01S330

    摘要: Raman amplifiers are provided for amplifying signals on optical communications links. The Raman amplifiers may be pumped using an unpolarized Raman pump source. Gain for the source may be provided by a semiconductor device that provides linearly-polarized pump light. A polarization-maintaining fiber may be coupled directly to the semiconductor device at a 45° orientation with respect to the polarization of the light emitted by the device. Light from the semiconductor device may be launched equally into both the slow and fast axes of the fiber. A fiber Bragg grating reflector may be used to stabilize the pump. Pump light traveling along the slow and fast axes becomes spatially separated by more than the coherence length of the multiple quantum well device. The pump light exiting the end of the polarization-maintaining fiber is therefore unpolarized.

    摘要翻译: 提供拉曼放大器用于放大光通信链路上的信号。 可以使用非偏振拉曼泵浦源来泵浦拉曼放大器。 源极的增益可以由提供线性偏振的泵浦光的半导体器件提供。 偏振保持光纤可以相对于由器件发射的光的偏振以45°取向直接耦合到半导体器件。 来自半导体器件的光可以同时发射到光纤的慢轴和快轴。 可以使用光纤布拉格光栅反射器来稳定泵。 沿着慢速和快轴行进的泵浦光通过多个量子阱装置的相干长度在空间上分开。 因此,离开保偏光纤的端部的泵浦光是非偏振的。