公开(公告)号：US07492992B1

公开(公告)日：2009-02-17

申请号：US10637199

申请日：2003-08-08

Applicant: Rongchung Tyan ,  Hee Choon Kang ,  Edgar A. Mendoza ,  Lothar U. Kempen

Inventor： Rongchung Tyan ,  Hee Choon Kang ,  Edgar A. Mendoza ,  Lothar U. Kempen

IPC: G02B6/26 ,  G02B6/42

CPC classification number: G02B6/4246 ,  G02B6/12004 ,  G02B6/30

Abstract: An integrated bi-directional transceiver device for multiple wavelength optical signals that has a high level of wavelength isolation at the receivers of the device and low cross-talk of light between an external laser transmitter and the receivers. A WDM planar light wave circuit (PLC) assembly combines high spatial light confinement waveguide structures and a variable thickness dielectric wavelength selective filter (WSF) on the surface of the device to reflect a first wavelength signal and to pass a second wavelength signal. Embodiments of the invention include branching waveguide structures and folded path waveguide assemblies with multiple WSF's.

Abstract translation: 一种用于多波长光信号的集成双向收发器设备，其在设备的接收器处具有高水平的波长隔离，并且在外部激光发射器和接收器之间具有低的串扰。 WDM平面光波电路（PLC）组件将高空间光限制波导结构和可变厚度介电波长选择滤波器（WSF）组合在器件的表面上以反射第一波长信号并传递第二波长信号。 本发明的实施例包括分支波导结构和具有多个WSF的折叠路径波导组件。

公开(公告)号：US07002686B2

公开(公告)日：2006-02-21

申请号：US11021204

申请日：2004-12-22

Applicant: Robert A. Lieberman ,  William Rassman ,  Lothar U. Kempen ,  David Ralin

Inventor： Robert A. Lieberman ,  William Rassman ,  Lothar U. Kempen ,  David Ralin

IPC: G01J4/00 ,  G01N33/557

CPC classification number: G01N21/211 ,  G01N21/253 ,  G01N21/552 ,  G01N2021/212 ,  Y10S436/805

Abstract: Apparatus for acquiring an image of a specimen comprising a cassette having an optical portion holding a specimen array on a TIR surface and being removably matable to a processing portion having a polarized light beam source and a processing polarization-sensitive portion to image the spatially distributed charges in polarization of the specimen array. In one form the array optical portion comprises a transparent slide having a bottom surface with first and second gratings located to direct polarized light to the TIR surface and to direct light reflected by that (TIR) surface to an imager, respectively. The apparatus may include a flow cell integral with the optical portion as well as means for selecting the direction and wavelength of the polarized light.

公开(公告)号：US06650810B1

公开(公告)日：2003-11-18

申请号：US09639063

申请日：2000-08-15

Applicant: Robert A. Lieberman ,  John D Prohaska ,  Lothar U Kempen

Inventor： Robert A. Lieberman ,  John D Prohaska ,  Lothar U Kempen

IPC: G02B634

CPC classification number: G01J3/457 ,  G01J3/18 ,  G01J3/1895 ,  G01J3/4338 ,  G02B6/02133 ,  G02B6/02138 ,  G02B6/022 ,  G02B6/124 ,  G02F1/0115 ,  G02F2201/307

Abstract: A tunable optical filter for simulating the waveband spectrums of selected substances. The filter includes an optical waveguide with a core material for transmitting light energy and a nominal core refractive index for the core material. Predetermined periodic variations are formed in the core material of the optical waveguide between the input and output ends that alter the core refractive index of the waveguide at the location of the periodic variations. Depending upon the periodic variations, the waveguide produces a predetermined reference waveband spectrum output that matches the waveband spectrum of a selected substance. A modulator is coupled to the waveguide to selectively modulate the periodic variations to intermittently shift the reference waveband spectrum output to fine tune the filter and reduce signal noise. The filter is useful as a reference cell for correlation spectroscopy, DIAL LIDAR, equipment calibration, and other uses where a predetermined or known waveband spectrum is useful or desirable.

Abstract translation: 一种用于模拟所选物质的波段频谱的可调光滤波器。 滤波器包括具有用于透射光能的芯材料和用于芯材料的标称芯折射率的光波导。 在输入和输出端之间的光波导的芯材中形成预定的周期性变化，其改变在周期性变化的位置处的波导的纤芯折射率。 根据周期性变化，波导产生与选定物质的波段频谱相匹配的预定参考波段频谱输出。 调制器耦合到波导以选择性地调制周期性变化，以间歇地移动参考波段频谱输出以微调滤波器并降低信号噪声。 滤波器可用作相关光谱参考单元，DIAL LIDAR，设备校准以及预定或已知波段频谱是有用或期望的其它用途。