会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • Single fiber optical links for simultaneous data and power transmission
    • 单光纤链路,用于同时进行数据和电力传输
    • US07941022B1
    • 2011-05-10
    • US12116180
    • 2008-05-06
    • James H. SchaffnerDennis C. Jones
    • James H. SchaffnerDennis C. Jones
    • G02B6/036
    • G02B6/03633G02B6/4206G02B6/4296H04B10/807
    • In one embodiment, a fiber optic link includes a combined optical link for transmitting high optical power and wide bandwidth signal through a single optical fiber. In one embodiment, a means is provided for combining a high power optical signal and a low power data signal with wavelength selective directional couplers so as to inhibit the low power data transmitter and the low power data receiver from being overloaded with too much power. In one implementation, a method of using double clad fiber is provided, which includes transmitting an optical data signal at an optical data wavelength along an inner core, the inner core being single mode at the optical data wavelength and simultaneously transmitting an optical power signal at a optical power wavelength through a cladding, the cladding serving as a multimode core for a power optical link at the optical power wavelength.
    • 在一个实施例中,光纤链路包括用于通过单个光纤传输高光功率和宽带宽信号的组合光链路。 在一个实施例中,提供了一种用于将高功率光信号和低功率数据信号与波长选择性定向耦合器组合的装置,以便禁止低功率数据发射机和低功率数据接收机由于功率过大而过载。 在一个实施方案中,提供了一种使用双包层光纤的方法,其包括沿着内核发送光数据波长的光数据信号,内核是光数据波长的单模,并同时发送光功率信号 通过包层的光功率波长,所述包层用作光功率波长处的功率光链路的多模核。
    • 4. 发明授权
    • Design for a Yb-doped CP fiber laser for operating near EDFA absorption
band
    • 设计用于在EDFA吸收带附近操作的Yb掺杂CP光纤激光器
    • US5991314A
    • 1999-11-23
    • US58539
    • 1998-04-10
    • Stanislav I. IonovDennis C. JonesMetin S. Mangir
    • Stanislav I. IonovDennis C. JonesMetin S. Mangir
    • H01S3/067H01S3/094H01S3/106H01S3/16H01S3/30
    • H01S3/0675H01S2302/00H01S2303/00H01S3/094003H01S3/1062H01S3/1608H01S3/1618
    • A Yb-doped cladding pumped fiber laser includes a reflective grating located at each distal end of the laser cavity. Each reflective grating can reflect light propagating inside a fiber core and at a desired wavelength range. A plurality of band-rejecting gratings are disposed between the reflective gratings, whereby the band-rejecting gratings can couple light at an undesired wavelength range and out of the fiber core. When the band-rejecting gratings are in an end-to-end relationship, they are separated by a distance of approximately L whereby L=[(.sigma..sub.e.sup.d +.sigma..sub.a.sup.d)ln 1/T]/[n(.sigma..sub.a.sup.d .sigma..sub.e.sup.u -.sigma..sub.e.sup.d .sigma..sub.a.sup.u)], n is a concentration of ions subject to excitation, .sigma..sub.a.sup.d is an absorption cross section at said desired wavelength range, .sigma..sub.e.sup.u is an emission cross section at said undesired wavelength range, .sigma..sub.e.sup.d is an emission cross section at said desired wavelength range, .sigma..sub.a.sup.u is an absorption cross section at said undesired wavelngth range, and T is a band-rejecting grating transmission factor. The number of band-rejecting gratings is given by N whereby N=d/L.gtoreq.dn (.sigma..sub.a.sup.d .sigma..sub.e.sup.u -.sigma..sub.e.sup.d .sigma..sub.a.sup.u)/[.sigma..sub.e.sup.d +.sigma..sub.a.sup.d) ln 1/T] and d is the length of the laser.
    • Yb掺杂包层泵浦光纤激光器包括位于激光腔的每个远端处的反射光栅。 每个反射光栅可以反射在光纤芯内传播并在期望波长范围内的光。 多个带阻光栅设置在反射光栅之间,由此带状光栅可将不期望的波长范围内的光耦合到光纤芯外。 当带状抑制光栅处于端对端关系时,它们被分开大约L的距离,由此L = [(sigma ed + sigma ad)ln 1 / T] / [n(西格玛西格玛 ed sigma au)],n是受激发的离子的浓度,σad是在所述期望波长范围的吸收截面,σeu是在所述不期望波长范围的发射截面,σed是 所述期望的波长范围,σau是在所述不希望的波长范围的吸收截面,T是带阻光栅传播因子。 带隙光栅的数量由N给出,其中N = d / L> / = dn(σσσσσσσσ/σ) 激光。
    • 6. 发明授权
    • Robust infrared countermeasure system and method
    • 强大的红外对策系统及方法
    • US06872960B2
    • 2005-03-29
    • US09837733
    • 2001-04-18
    • David M. PepperDennis C. Jones
    • David M. PepperDennis C. Jones
    • G01S7/481G01S7/495G01B11/26G01S13/86
    • F41H13/005G01S7/4816G01S7/495
    • A system and method for focusing electromagnetic energy on a moving target. Generally, the inventive system sends a pilot beam to a target and analyzes a return wavefront to ascertain data with respect to any distortions and other phase and/or amplitude information in the wavefront. This information is then used to pre-distort an output beam by so that it is focused on the target by the intervening distortions. In an illustrative embodiment, the pilot beam is provided by a beacon laser mounted off-axis with respect to the output beam. The reflected wavefront is received through a gimbaled telescope. Energy received by the telescope is detected and processed to ascertain wavefront aberrations therein. This data is used to predistort a deformable mirror to create an output beam which is the phase conjugate of the received wavefront. In a first alternative embodiment, a nonlinear optical phase-conjugate mirror is employed to generate the required wavefront-reversed replica of the received wavefront. The system further includes an arrangement for modulating the output beam to confuse the target. In a second alternative embodiment, the system is adapted to examine atmospheric distortions of starlight to predistort the output beam. The alternative embodiment offers a faster response time and a lower susceptibility to detection.
    • 一种用于将电磁能量聚焦在移动目标上的系统和方法。 通常,本发明的系统向目标发送导频波束并且分析返回波阵面以确定关于波前的任何失真和其它相位和/或振幅信息的数据。 然后,该信息用于对输出光束进行预失真,使其通过中间的失真聚焦在目标上。 在说明性实施例中,导频波束由相对于输出波束离轴安装的信标激光器提供。 反射的波前通过万向望远镜接收。 检测并处理由望远镜接收的能量以确定其中的波前像差。 该数据用于预变形可变形反射镜以产生作为接收波前的相位共轭的输出光束。 在第一替代实施例中,使用非线性光学相位共轭反射镜来产生所接收的波前的所需波前反转副本。 该系统还包括用于调制输出光束以混淆目标的装置。 在第二替代实施例中,系统适于检查星光的大气变形以预失真输出光束。 替代实施例提供更快的响应时间和更低的检测敏感性。
    • 7. 发明授权
    • Monolithic multifunctional optical elements
    • 单片多功能光学元件
    • US5847871A
    • 1998-12-08
    • US223190
    • 1994-04-05
    • David S. SumidaDennis C. Jones
    • David S. SumidaDennis C. Jones
    • G02B5/04G02B5/12G02B27/28H01S3/08H01S3/113G02B5/30
    • G02B27/286G02B5/04G02B5/12H01S3/08059H01S3/113
    • Optical apparatus that combines a plurality of separate optical functions into a single monolithic optical element. The the optical element comprises two or three optical functions, such as saturable absorption, retroreflection, and polarization rotation. The optical element comprises a body that is formed in the shape of a right-angle porro prism. The optical element is fabricated from a garnet material that combines the properties of high refractive index (greater than 1.414 to permit total internal reflection at a 45 degree incidence angle), saturable optical absorption (to provide Q-switching), and tolerance to high temperatures (to permit application of anti-reflection coatings). The optical element may be comprised of garnet materials such as yttrium aluminum garnet, gadolinium scandium gallium garnet, or gadolinium scandium aluminum garnet, for example. Doping the garnet materials with tetravalent chromium (Cr.sup.4+), for example, provides for saturable absorption while the natural properties of garnet materials provide high temperature tolerance.
    • 将多个单独光学功能组合成单个单片光学元件的光学装置。 光学元件包括两个或三个光学功能,例如可饱和吸收,回射和偏振旋转。 光学元件包括形成为直角孔棱镜形状的主体。 光学元件由石榴石材料制成,其结合了高折射率(大于1.414以允许45度入射角的全内反射)的特性,可饱和光吸收(提供Q开关)和耐高温 (允许使用防反射涂层)。 光学元件可以由例如钇铝石榴石,钆镓镓石榴石或钆铝石榴石等石榴石材料构成。 例如,用四价铬(Cr4 +)掺杂石榴石材料可提供饱和吸收,而石榴石材料的天然特性提供高温耐受性。
    • 9. 发明授权
    • Optical device enhancement method and apparatus by control of stimulated
brillouin scattering gain
    • 通过控制受激布里渊散射增益的光学器件增强方法和装置
    • US4880295A
    • 1989-11-14
    • US111941
    • 1987-10-21
    • David A. RockwellMetin S. MangirJeffrey O. WhiteDennis C. Jones
    • David A. RockwellMetin S. MangirJeffrey O. WhiteDennis C. Jones
    • G02F20060101G02F1/35H01S3/08H01S3/10H01S3/30
    • H01S3/305G02F1/3538
    • The output of an optical device which involves a stimulated brillouin scattering (SBS) gain medium is enhanced over a range of input beam intensities by providing a gain medium which has a given SBS gain for a given input beam intensity, and modifying the gain medium to reduce its SBS gain coefficient. By lowering the SBS gain coefficient, SBS dominance and suppression of stimulated Raman scattering (SRS) can be mitigated, and the output fidelity of a phase conjugation system with respect to its input can be significantly enhanced. Mechanisms for reducing the SBS gain coefficient include increasing the medium viscosity, thermal conductivity and/or diffusion coefficient, or causing the medium relaxation zone to coincide with the frequency of the phonons involved in the SBS process. Two different media can be mixed together in varying proportions to progressively modify the overall medium SBS gain as the input beam intsnsity is progressively changed.
    • 涉及受激布里渊散射(SBS)增益介质的光学器件的输出通过提供对于给定输入光束强度具有给定SBS增益的增益介质,并且将增益介质修改为 降低其SBS增益系数。 通过降低SBS增益系数,可以减轻SBS优势和受激拉曼散射(SRS)的抑制,相位共轭系统相对于其输入的输出保真度可以显着增强。 用于降低SBS增益系数的机制包括增加介质粘度,热导率和/或扩散系数,或使介质松弛区与SBS过程中涉及的声子的频率一致。 两种不同的介质可以以不同比例混合在一起,以逐渐改变整个介质SBS增益,因为输入波束的精度逐渐改变。
    • 10. 发明授权
    • Exhaust nozzle assembly with dual unison ring structure
    • 排气喷嘴组件具有双重一致的环形结构
    • US4456178A
    • 1984-06-26
    • US453191
    • 1982-12-27
    • Dennis C. JonesJames F. Marshall
    • Dennis C. JonesJames F. Marshall
    • F02K1/12B64C15/06
    • F02K1/1292F05D2250/292F05D2250/324
    • A variable area exhaust nozzle has primary, axially movable flaps tied to an inner unison ring having a box-like cross section and axially movable external flaps tied to an outer unison ring of box-like cross section. The inner and outer rings are concentric, radially aligned, and separated by an engine case. The rings are interconnected by a plurality of pins extending radially from within the outer ring box section to within the inner ring box section through axially extending slots in the case between them. The pins are attached to the rings in a manner preventing relative axial movement therebetween and permitting relative radial movement. When one of the rings is actuated in an axial direction, the other moves axially therewith, the axial actuation force being transmitted by the interconnecting pins. The pins also resist the overturning moment on the rings caused by loads on the nozzle flaps.
    • 可变区域排气喷嘴具有主要的可轴向移动的翼片,其连接到具有盒状横截面的内部协调环并且可轴向移动的外部翼片连接到盒状横截面的外部一致环。 内圈和外圈是同心的,径向对齐的,并由发动机壳分开。 这些环通过多个从外环箱部分径向延伸到内环箱部分的销相互连接,通过它们之间的壳体中的轴向延伸的槽。 这些销以防止其间的相对轴向运动并允许相对径向移动的方式附接到环。 当其中一个环沿轴向被致动时,另一个环沿其轴向移动,轴向致动力由互连销传递。 这些销钉还能抵抗由喷嘴襟翼上的负载引起的环上的翻转力矩。