REDUCING SPECTRAL NOISE IN SEMICONDUCTOR SPECTROSCOPY SYSTEM
    102.
    发明申请
    REDUCING SPECTRAL NOISE IN SEMICONDUCTOR SPECTROSCOPY SYSTEM 审中-公开
    减少半导体光谱系统中的光谱噪声

    公开(公告)号:WO2006091274A1

    公开(公告)日:2006-08-31

    申请号:PCT/US2006/000823

    申请日:2006-01-10

    Abstract: A spectroscopy system comprises a tunable semiconductor laser, such as an external cavity laser, that generates a tunable signal. A detector is provided for detecting the tunable signal after interaction with a sample. In this way, the system is able to determine the spectroscopic response of the sample by tuning the laser of the scan band and monitoring the detector's response. An integrating device, such as an integrating sphere, is interposed optically between the tunable semiconductor laser and the detector. This integrating device is used to mitigate the effects of parasitic spectral noise, such as noise that is generated by speckle or the combination of single- and multi-mode optical fibers in the transmission link between the tunable semiconductor laser and the detector.

    Abstract translation: 光谱系统包括可调谐半导体激光器,例如外腔激光器,其产生可调信号。 提供了一种检测器,用于在与样品相互作用后检测可调信号。 以这种方式,该系统能够通过调谐扫描带的激光并监测检测器的响应来确定样品的光谱响应。 诸如积分球的积分装置被光学地插入在可调半导体激光器和检测器之间。 该集成装置用于减轻寄生光谱噪声的影响,例如由可调谐半导体激光器和检测器之间的传输链路中的斑点或单模和多模光纤的组合产生的噪声。

    MULTI CHANNEL RAMAN SPECTROSCOPY SYSTEM AND METHOD
    103.
    发明申请
    MULTI CHANNEL RAMAN SPECTROSCOPY SYSTEM AND METHOD 审中-公开
    多通道拉曼光谱系统和方法

    公开(公告)号:WO2005038437A2

    公开(公告)日:2005-04-28

    申请号:PCT/US2004/034215

    申请日:2004-10-15

    Inventor: WANG, Xiaomei

    Abstract: A spectrometer that provides the ability to combine the advantages of high resolution, compactness, ruggedness, and low-power consumption of Fabry-Perot (FP) tunable filter spectrometer, with the multi-channel multiplexing advantage of FT and/or grating/detector array. The key concept is to design and operate a tunable FP filter in a multiple-order condition. This filter is then followed by a "low-resolution" fixed grating, which disperses the filtered n-order signal into a preferably matched N-element detector array for parallel detection. The spectral resolution in this system is determined by the FP filter, which can be designed to have very high resolution. The N-order parallel detection scheme reduces the total integration or scan time by a factor of N to achieve the same signal to noise ratio (SNR) at the same resolution as the single channel tunable filter method.

    Abstract translation: 光谱仪提供了结合Fabry-Perot(FP)可调谐滤光片的高分辨率,紧凑性,坚固性和低功耗优点的能力,以及FT和/或光栅/检测器阵列的多通道复用优势 。 关键概念是设计和操作多阶可调FP滤波器。 该滤波器之后是“低分辨率”固定光栅,其将滤波后的n阶信号分散到优选匹配的N元件检测器阵列中用于并行检测。 该系统中的光谱分辨率由FP滤光片确定,可以设计成具有非常高的分辨率。 N级并行检测方案将总积分或扫描时间减少N倍,以与单通道可调滤波器方法相同的分辨率实现相同的信噪比(SNR)。

    BONDED TUNABLE VCSEL WITH BI-DIRECTIONAL ACTUATION

    公开(公告)号:WO2020097105A1

    公开(公告)日:2020-05-14

    申请号:PCT/US2019/059903

    申请日:2019-11-05

    Abstract: A MEMS tunable VCSEL includes a membrane device having a mirror and a distal-side electrostatic cavity for displacing the mirror to increase a size of an optical cavity. A VCSEL device includes an active region for amplifying light. Then, a proximal-side electrostatic cavity is defined between the VCSEL device and the membrane device is used to displace the mirror to decrease a size of an optical cavity.

    MECHANICALLY BALANCED OPTICAL MEMBRANE DEVICE FOR ORIENTATION INSENSITIVITY
    106.
    发明申请
    MECHANICALLY BALANCED OPTICAL MEMBRANE DEVICE FOR ORIENTATION INSENSITIVITY 审中-公开
    用于定向灵敏度的机械平衡光学膜装置

    公开(公告)号:WO2013170056A1

    公开(公告)日:2013-11-14

    申请号:PCT/US2013/040384

    申请日:2013-05-09

    CPC classification number: G02B26/001 G02B26/0825

    Abstract: An optical membrane device comprises a substrate, at least one support block on a surface of the substrate, and at least one plate. A torsion beam supports the plate above the substrate on the support block. The optical membrane device also includes an optical membrane structure supported by the plate above the substrate and at least one electrode on the substrate underneath the plate. In one implementation, the optical membrane device further comprises a tether for coupling the optical membrane structure to the plate. The tether extends between the optical membrane structure and the plate. In another implementation, the substrate of the optical membrane device has an optical port through the substrate directly below the optical membrane structure. The plate is substantially balanced around the torsion beam to minimize a sensitivity to orientation in a gravitational field.

    Abstract translation: 光学膜装置包括基底,在基底表面上的至少一个支撑块和至少一个板。 扭力梁将支撑块上的基板上方的板支撑。 光学膜装置还包括由基板上方的板支撑的光学膜结构和在板下方的基板上的至少一个电极。 在一个实施方式中,光学膜装置还包括用于将光学膜结构耦合到板的系绳。 系绳在光学膜结构和板之间延伸。 在另一实施方式中,光学膜装置的基板具有通过光学膜结构正下方的基板的光学端口。 该板在扭转梁周围基本平衡,以最小化对重力场中的取向的敏感性。

    METHOD AND SYSTEM FOR SPECTRAL STITCHING OF TUNABLE SEMICONDUCTOR SOURCES
    109.
    发明申请
    METHOD AND SYSTEM FOR SPECTRAL STITCHING OF TUNABLE SEMICONDUCTOR SOURCES 审中-公开
    用于光电耦合半导体源的方法和系统

    公开(公告)号:WO2006039155A1

    公开(公告)日:2006-04-13

    申请号:PCT/US2005/033714

    申请日:2005-09-20

    CPC classification number: G01J3/10

    Abstract: A multi semiconductor source tunable spectroscopy system has two or more semiconductor sources for generating tunable optical signals that are tunable over different spectral bands. The system enables the combination of these tunable signals to form an output signal that is tunable over a combined band including these individual spectral bands of the separate semiconductor sources. The system further compensates for spectral roll-off associated with the semiconductor sources. Specifically, near the limits of the semiconductor sources spectral bands, the power in the tunable signal tends to degrade or decrease. The system compensates for this roll-off using drive current control, attenuators, or electronic compensation.

    Abstract translation: 多半导体源可调谐光谱系统具有用于产生可调谐光信号的两个或更多个半导体源,其可调谐的不同光谱带。 该系统使得这些可调谐信号的组合能够形成可在包括单独半导体源的这些单个频谱带的组合频带上调谐的输出信号。 该系统进一步补偿与半导体源相关联的光谱滚降。 具体来说,在半导体源光谱带的极限附近,可调信号的功率趋于降低或降低。 该系统使用驱动电流控制,衰减器或电子补偿来补偿此滚降。

    MEMS SINGULATION PROCESS UTILIZING PROTECTIVE COATING

    公开(公告)号:WO2002060811A3

    公开(公告)日:2002-08-08

    申请号:PCT/US2002/002348

    申请日:2002-01-22

    Abstract: A process for singulating MOEMS optical devices (10) from a precursor structure (110), in which the precursor structure (110) comprises device material (12), having movable optical structures (14), and handle material (22), through which optical ports (30) are formed to provide for optical access to the movable optical structures (14). The process comprises coating a frontside and a backside of the precursor structure (110) with protection material (610). The precursor structure (110) is then attached to a substrate such as dicing tape and the precursor structure (110) separated into individual optical devices (10) by a process, including die sawing. Thereafter, the optical devices (10) are removed from the tape and the protection material (610) removed from the optical devices (10).

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