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31. 发明授权

US07145727B2 Unpolarized beam splitter having polarization-independent phase difference when used as an interferometer 失效
标题翻译：用作干涉仪的非偏振光束分离器具有偏振无关的相位差
公开(公告)号：US07145727B2
公开(公告)日：2006-12-05
申请号：US10796512
申请日：2004-03-08
申请人： Yung-Chieh Hsieh
发明人： Yung-Chieh Hsieh
IPC分类号： G02B27/10
CPC分类号： G02B27/145
摘要： Beam splitter designs for interferometers provide a phase difference between the two resulting interference beams that are independent of the polarization status of the incident beam. The polarization independent phase coating is achieved by making the internal beam splitting coating of an unpolarized beam splitter to be symmetrical. A symmetrical coating will produce the phase matching condition, ΨSR−ΨSR′=ΨPR−ΨPR′=0.
摘要翻译：用于干涉仪的光束分离器设计提供独立于入射光束的偏振状态的两个所产生的干涉光束之间的相位差。通过使非偏振分束器的内部分束涂层对称来实现偏振无关相涂层。对称涂层将产生相位匹配条件，Psi S R'= Psi _{PR -Psi PR' = 0。}

32. 发明授权

US06566674B1 Method and apparatus for inspecting substrates 失效
标题翻译：用于检查基板的方法和装置
公开(公告)号：US06566674B1
公开(公告)日：2003-05-20
申请号：US09337709
申请日：1999-06-21
申请人： David Treves , Thomas A. O'Dell , Yung-Chieh Hsieh
发明人： David Treves , Thomas A. O'Dell , Yung-Chieh Hsieh
IPC分类号： G01N2188
CPC分类号： G01N21/88
摘要： Apparatus for detecting defects in a substrate comprises a laser for providing a laser beam, and a bi-cell photodiode comprising two cells. Circuitry coupled to the bi-cell photodiode provides a signal equal to (L−R)/(L+R), where L and R equal the signal strengths of the signals provided by the left and right photodiode cells, respectively. The photodiode is biased so that it exhibits reduced capacitance, and can provide increased output signal bandwidth.
摘要翻译：用于检测衬底中的缺陷的装置包括用于提供激光束的激光器和包括两个电池的双电池光电二极管。耦合到双电池光电二极管的电路提供等于（L-R）/（L + R）的信号，其中L和R分别等于由左和右光电二极管单元提供的信号的信号强度。光电二极管被偏置，使其呈现减小的电容，并且可以提供增加的输出信号带宽。

33. 发明授权

US08705176B2 Modified Michelson delay-line interferometer 有权
标题翻译：改进的迈克尔逊延迟线干涉仪
公开(公告)号：US08705176B2
公开(公告)日：2014-04-22
申请号：US12928189
申请日：2010-12-06
申请人： Yung-Chieh Hsieh
发明人： Yung-Chieh Hsieh
IPC分类号： G02B27/14 , G02B27/10
CPC分类号： G02B27/144 , G02B5/284 , H04B10/677
摘要： In an optical etalon with a fixed FSR determined by the cavity length, the time delay is adjusted by an etalon surface coating. The proper cavity length is chosen to achieve a desired FSR, and the coating is independently selected to obtain a desired time delay.
摘要翻译：在具有通过腔长度确定的固定FSR的光学标准具中，通过标准具表面涂层来调整时间延迟。选择适当的腔长以获得期望的FSR，并且独立地选择涂层以获得期望的时间延迟。

34. 发明授权

US08111450B1 Rhomb beam splitter in optical communication 有权
公开(公告)号：US08111450B1
公开(公告)日：2012-02-07
申请号：US12538124
申请日：2009-08-08
申请人： Yung-Chieh Hsieh
发明人： Yung-Chieh Hsieh
IPC分类号： G02F2/00 , G02B1/10
CPC分类号： G02B6/29367
摘要： Rhomb beam splitters are used to implement various optical demodulators, in particular PSK and DPSK demodulators. The parallel beam-splitting and reflective surfaces of the rhomb structure produce reflection and transmission beams that exit the beam splitter parallel to one another and with a relative phase shift determined by the distance between the surfaces. These features afford the advantages of low cost, compactness, easily tunable, and temperature-insensitive optical structures for constructing a variety of optical demodulators.

35. 发明授权

US08004750B1 Multiple-FSR DPSK demodulator 有权
标题翻译：多FSR DPSK解调器
公开(公告)号：US08004750B1
公开(公告)日：2011-08-23
申请号：US12541894
申请日：2009-08-14
申请人： Yung-Chieh Hsieh
发明人： Yung-Chieh Hsieh
IPC分类号： G02F2/00
CPC分类号： H04B10/677
摘要： A switchable free-spectral-range mode selector is used to change the free spectral range of a free-space delay-line interferometer. The mode selector consists of a rotatable device with at least one transparent plate selected to produce the desired change in the free spectral range of the delay-line interferometer. The device may be rotated in and out of the free-space optical path of on of the interferometer arms. If used as a DPSK demodulator, the device enables operation at multiple predetermined free spectral ranges. In the preferred embodiment, the demodulator includes a 50/50 beam-splitter cube combined with two cavities. The mode selector consists of a plurality of different transparent slabs attached to a rotatable shaft so that any one of the slabs or none may be inserted in the appropriate optical path to obtain the desired FSR mode of operation.
摘要翻译：可切换的自由光谱范围模式选择器用于改变自由空间延迟线干涉仪的自由光谱范围。模式选择器由可旋转的装置组成，其中至少有一个透明板被选择以产生延迟线干涉仪的自由光谱范围内所需的变化。该装置可以旋转进入和离开干涉仪臂的自由空间光路。如果用作DPSK解调器，则该器件能够在多个预定的自由光谱范围内进行操作。在优选实施例中，解调器包括与两个空腔结合的50/50分束器立方体。模式选择器由连接到可旋转轴的多个不同的透明板组成，使得任何一个板或者不能插入适当的光路中以获得期望的FSR操作模式。

36. 发明授权

US07864433B1 Free-space optical hybrid 有权
标题翻译：自由空间光混合
公开(公告)号：US07864433B1
公开(公告)日：2011-01-04
申请号：US12498419
申请日：2009-07-07
申请人： Yung-Chieh Hsieh
发明人： Yung-Chieh Hsieh
IPC分类号： G02B27/10 , G02B27/12 , G02B1/10 , H04B1/00
CPC分类号： G02B27/146 , G02B6/272 , G02B27/144
摘要： An exemplary optical hybrid includes a 50/50 un-polarized beam splitter, a folding prism, a beam shifter, a spacer and a phase shifter such that from an input S-beam (signal) and an L-beam (reference), four outputs, S+L, S−L, S+jL and S−jL, are produced. The phase difference between the two components of each output beam produced by the S and L beams in the optical hybrid is θ+0, θ+90, θ+180, or θ+270 degrees, where θ is the phase difference of the signal beam with respect to the reference beam. In an alternative embodiment, the phase difference between the two components of each output beam produced by the S and L beams in the optical hybrid is θ+0, θ+X, θ+180, or θ+180+X degrees, where X is an arbitrary number of degrees greater than 0 and smaller than 180.
摘要翻译：示例性光学混合包括50/50个非偏振分束器，折叠棱镜，光束移动器，间隔器和移相器，使得从输入S光束（信号）和L光束（参考），四输出S + L，S-L，S + jL和S-jL。光混合物中S和L光束产生的每个输出光束的两个分量之间的相位差为+0，...，+90，...，+ 180，或+270度，其中＆是信号光束相对于参考光束的相位差。在另一个实施例中，由光混合中的S和L光束产生的每个输出光束的两个分量之间的相位差为+0，...，+ X，...，+ 180，或者; + 180 + X 度，其中X是任意数量的大于0且小于180度。

37. 发明授权

US07864430B2 Modified Michelson delay line interferometer 有权
标题翻译：改进的迈克尔逊延迟线干涉仪
公开(公告)号：US07864430B2
公开(公告)日：2011-01-04
申请号：US12174628
申请日：2008-07-16
申请人： Yung-Chieh Hsieh
发明人： Yung-Chieh Hsieh
IPC分类号： G02B27/14 , H04B10/06
CPC分类号： G02B27/144 , G02B5/284 , H04B10/677
摘要： In an optical etalon with a fixed FSR determined by the cavity length, the time delay is adjusted by an etalon surface coating. The proper cavity length is chosen to achieve a desired FSR, and the coating is independently selected to obtain a desired time delay.
摘要翻译：在具有通过腔长度确定的固定FSR的光学标准具中，通过标准具表面涂层来调整时间延迟。选择适当的腔长以获得期望的FSR，并且独立地选择涂层以获得期望的时间延迟。

38. 发明申请

US20070223932A1 Free-space optical hybrid 有权
标题翻译：自由空间光混合
公开(公告)号：US20070223932A1
公开(公告)日：2007-09-27
申请号：US11729004
申请日：2007-03-27
申请人： Yung-Chieh Hsieh
发明人： Yung-Chieh Hsieh
IPC分类号： H04B10/00
CPC分类号： G02F2/002 , G02B27/283
摘要： An exemplary optical hybrid includes a 50/50 un-polarized beam splitter, a folding prism, a beam shifter, a spacer and a phase shifter such that from an input S-beam (signal) and an L-beam (reference), four outputs, S+L, S−L, S+jL, S−jL, are produced. The phase difference of S and L at the four output ports is phi_0, phi_0+90-degrees, phi_0+180-degree, phi_0+270-degree, where the phase difference between S and L at the S+L port is an arbitrary number phi_0 and the phase difference between S and L at the other output ports, S−L, S+jL, S−jL, is 90, 180 and 270, respectively, shifted from phi_0.
摘要翻译：示例性光学混合包括50/50个非偏振分束器，折叠棱镜，光束移动器，间隔器和移相器，使得从输入S波束（信号）和L波束（参考），四输出S + L，SL，S + jL，S-jL。四个输出端口的S和L的相位差为phi_0，phi_0 + 90度，phi_0 + 180度，phi_0 + 270度，其中S + L端口的S和L之间的相位差是任意的数字phi_0，其他输出端口SL，S + jL，S-jL的S和L之间的相位差分别为90,180和270，从phi_0偏移。

39. 发明申请

US20220003659A1 METHODS FOR COMPACT MULTI-COLOR FLOW CYTOMETERS HAVING COMPACT DETECTION MODULES 有权
公开(公告)号：US20220003659A1
公开(公告)日：2022-01-06
申请号：US17375988
申请日：2021-07-14
申请人： Ming Yan , Yung-Chieh Hsieh , David Vrane , Eric Chase , Wenbin Jiang
发明人： Ming Yan , Yung-Chieh Hsieh , David Vrane , Eric Chase , Wenbin Jiang
IPC分类号： G01N15/14 , G01N21/53 , G01N21/64 , G01J3/44 , G01J3/18 , G01J3/14 , G01J3/02 , G01J3/28 , G01J3/36
摘要： A system, an apparatus, and a method are provided for a modular flow cytometer with a compact size. In one embodiment, the modular flow cytometry system includes the following: a laser system for emitting laser beams; a flow cell assembly positioned to receive the laser beams at an interrogation region of a fluidics stream where fluoresced cells scatter the laser beams into fluorescent light; a fiber assembly positioned to collect the fluorescent light; and a compact light detection module including a first image array having a transparent block, a plurality of micro-mirrors in a row coupled to a first side of the transparent block, and a plurality of filters in a row coupled to a second side of the transparent block opposite the first side.

40. 发明申请

US20120257279A1 GRATING BASED TUNABLE FILTER 审中-公开
标题翻译：基于镀层的过滤器
公开(公告)号：US20120257279A1
公开(公告)日：2012-10-11
申请号：US13441899
申请日：2012-04-08
申请人： Yung-Chieh Hsieh
发明人： Yung-Chieh Hsieh
IPC分类号： G02B5/18
CPC分类号： G02B26/0816 , G01J3/18 , G02B5/18 , G02B26/105 , H04J14/02
摘要： In a grating based tunable filter, an input beam that includes multiple wavelengths is directed into an input fiber of a circulator. The beam is collimated and then is reflected by a rotationally actuated mirror. The beam is then magnified and propagates onto and through a transmission diffraction grating which causes the different wavelengths of the transmitted beam to deflect into different angles. The wavelengths propagate onto and are reflected by a mirror and only a small portion of the wavelength spectrum of the transmitted beam will be reflected back along the incoming path and then propagate to the output fiber
摘要翻译：在基于光栅的可调滤波器中，包括多个波长的输入光束被引导到循环器的输入光纤中。光束被准直，然后被旋转致动的反射镜反射。然后将光束放大并传播到透射衍射光栅上，并使透射光束的不同波长偏转成不同的角度。这些波长传播到反射镜上并被反射镜所传播的波长的波长谱的一小部分将沿着入射路径反射回来，然后传播到输出光纤

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