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    • 2. 发明授权
    • Cantilever beam MEMS variable optical attenuator
    • 悬臂梁MEMS可变光衰减器
    • US07242825B2
    • 2007-07-10
    • US11010769
    • 2004-12-13
    • Pinyen LinYao Rong WangJun MaXueyuan LiuPeter M. GulvinKristine A. GermanJoel A. Kubby
    • Pinyen LinYao Rong WangJun MaXueyuan LiuPeter M. GulvinKristine A. GermanJoel A. Kubby
    • G02B6/35
    • G02B6/3508G02B6/266G02B6/3566G02B6/357G02B6/358G02B6/3594G02B6/3596
    • An improved cantilever beam optical switch design which provides the function of a variable optical attenuator (VOA). A small degree of intentional misalignment of the waveguide will create different levels of optical attenuation. By finely controlling the misalignment of a selected switched position, a single device may be realized that will provide the functions of both switching and attenuating or just attenuation alone. The optical MEMS device utilizes a latching mechanism in association with a thermal drive actuator for aligning a cantilever beam platform. The integration of the switching function and the VOA function reduce the optical loss which is otherwise unavoidable when the inevitable alterative of a separate switch and a separate VOA must necessarily be employed. The resultant improved device can also be applied for correcting the difference in optical intensity created by the manufacturing tolerances inherent in the fabrication of array waveguide gratings.
    • 改进的悬臂光束开关设计,提供可变光衰减器(VOA)的功能。 波导的有意的不对准会导致不同程度的光衰减。 通过精细地控制所选择的切换位置的未对准,可以实现单个设备,其将提供单独切换和衰减或仅仅衰减的功能。 光学MEMS器件利用与用于对准悬臂梁平台的热驱动致动器相关联的闩锁机构。 开关功能和VOA功能的集成减少了当必须采用单独的开关和单独的VOA的不可避免的替代时否则不可避免的光损耗。 所得到的改进的器件还可以用于校正由阵列波导光栅的制造中固有的制造公差产生的光强差。
    • 5. 发明授权
    • Thermal actuator and an optical waveguide switch including the same
    • 热致动器和包括其的光波导开关
    • US06983088B2
    • 2006-01-03
    • US10634941
    • 2003-08-05
    • Joel A. KubbyJun MaKristine A. GermanPeter M. GulvinPinyen Lin
    • Joel A. KubbyJun MaKristine A. GermanPeter M. GulvinPinyen Lin
    • G02B6/26G02B6/42H01H37/00
    • G02B6/3576B81B3/0018G02B6/3566G02B6/3584
    • A thermal actuator comprises a plurality of substantially straight and parallel beams arranged to form a beam array. The midpoint of each beam is attached or coupled to an orthogonal coupling beam. Each array beam has a beam heating parameter with a corresponding beam heating parameter value. The beam heating parameter values vary across the beam array based on a predetermined pattern. As the beams are heated by an included heating means, the distribution of beam temperatures in the beam array becomes asymmetric, thus causing the beam array to buckle. The buckling of the beams in the beam array, in turn, causes the attached coupling beam to move in a predetermined direction. The coupling beam motion, in turn, operates an included optical waveguide switch. The beams in the beam array are heated by any of Joule heating, eddy current heating, conduction heating, convection heating and radiation heating.
    • 热致动器包括布置成形成束阵列的多个基本上直的和平行的光束。 每个光束的中点附加或耦合到正交耦合光束。 每个阵列光束具有具有对应的光束加热参数值的光束加热参数。 光束加热参数值基于预定图案在波束阵列上变化。 当束被加热装置加热时,光束阵列中光束温度的分布变得不对称,从而使光束阵列发生弯曲。 光束阵列中的光束的弯曲又使连接的光束沿预定的方向移动。 耦合光束运动反过来操作包括的光波导开关。 光束阵列中的光束通过焦耳加热,涡流加热,传导加热,对流加热和辐射加热中的任何一种加热。
    • 9. 发明授权
    • Decreased crosstalk in adjacent photonic waveguides
    • 相邻光子波导中的串扰减少
    • US07116880B1
    • 2006-10-03
    • US11170869
    • 2005-06-30
    • Xueyuan LiuYao Rong WangKristine A. GermanPeter M. Gulvin
    • Xueyuan LiuYao Rong WangKristine A. GermanPeter M. Gulvin
    • G02B6/10
    • G02B6/2813G02B6/122
    • First and second ridge type photonic waveguides are provided. Each of the waveguides includes a core layer and a reflective cladding layer in continuous contact with a first side of a core layer. The core layer has a core index of the refraction and is formed in a ridge in a dimension and shape to impose lateral confinement. The reflective cladding layer has an index of refraction that is substantially different than the core index of refraction. An inter-waveguide slab portion is provided between the first and second waveguides. A substrate supports the first and second waveguides, the slab portion, and the reflective cladding layer. A light interceptor region is provided to hinder a transfer of photons between the first and second waveguides through the inter-waveguides slab portion. The light interceptor region may include a trench region, which is an air gap in one embodiment.
    • 提供第一和第二脊型光子波导。 每个波导包括与芯层的第一侧连续接触的芯层和反射包层。 芯层具有折射率的芯指数,并且形成为具有尺寸和形状的脊,以施加横向约束。 反射包层具有与芯折射率基本上不同的折射率。 在第一和第二波导之间设置有波导管间的部分。 基板支撑第一和第二波导,平板部分和反射包层。 提供光拦截器区域以阻止通过所述波导板间部分在第一和第二波导之间的光子的转移。 光拦截区域可以包括沟槽区域,其在一个实施例中是气隙。
    • 10. 发明授权
    • Bistable microelectromechanical system based structures, systems and methods
    • 双稳态微机电系统的结构,系统和方法
    • US06828887B2
    • 2004-12-07
    • US10063762
    • 2002-05-10
    • Joel A. KubbyFuqian YangJun MaKristine A. GermanPeter M. Gulvin
    • Joel A. KubbyFuqian YangJun MaKristine A. GermanPeter M. Gulvin
    • H01H5122
    • G02B6/3508B81B3/0054B81B2201/032G02B6/3546G02B6/3568G02B6/3582G02B6/3596H01H2001/0042
    • A bistable microelectromechanical system (MEMS) based system comprises a micromachined beam having a first stable state, in which the beam is substantially stress-free and has a specified non-linear shape, and a second stable state. The curved shape may comprises a simple curve or a compound curve. In embodiments, the boundary conditions for the beam are fixed boundary conditions, bearing boundary conditions, spring boundary conditions, or a combination thereof. The system may further comprise an actuator arranged to move the beam between the first and second stable states and a movable element that is moved between a first position and a second position in accordance with the movement of the beam between the first and second stable states. The actuator may comprise one of a thermal actuator, an electrostatic actuator, a piezoelectric actuator and a magnetic actuator. The actuator may further comprise a thermal impact actuator or a zippering electrostatic actuator.
    • 基于双稳态微机电系统(MEMS)的系统包括具有第一稳定状态的微加工梁,其中梁基本上无应力且具有特定的非线性形状和第二稳定状态。 弯曲形状可以包括简单曲线或复合曲线。 在实施例中,梁的边界条件是固定的边界条件,轴承边界条件,弹簧边界条件或其组合。 系统还可以包括致动器,其被布置成在第一和第二稳定状态之间移动梁,以及根据梁在第一和第二稳定状态之间的移动而在第一位置和第二位置之间移动的可动元件。 致动器可以包括热致动器,静电致动器,压电致动器和磁致动器中的一个。 致动器还可以包括热冲击致动器或拉链静电致动器。