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1. 发明申请

US20110317170A1 WEDGE PAIR FOR PHASE SHIFTING 审中-公开
标题翻译：用于相移的楔形对
公开(公告)号：US20110317170A1
公开(公告)日：2011-12-29
申请号：US13150404
申请日：2011-06-01
申请人： Yung-Chieh Hsieh , Chiayu Ai
发明人： Yung-Chieh Hsieh , Chiayu Ai
IPC分类号： G01B9/02 , G02B26/06
CPC分类号： H04B10/677 , G01B2290/35
摘要： The invention provides a wedge pair suitable for use in interferometers. The wedge pair produces a phase shift between beams of light propagating in the interferometer. The invention includes a wedge pair and a mechanism for translating a first wedge of the pair with respect to a second wedge of the pair, where the first wedge has the same wedge angle and material of the second wedge and where the vertex of the first wedge and the vertex of the second wedge are pointed in opposite directions.
摘要翻译：本发明提供一种适用于干涉仪的楔形对。楔形对产生在干涉仪中传播的光束之间的相移。本发明包括楔形对和用于相对于该对的第二楔形物平移第一楔形物的机构，其中第一楔形物具有与第二楔形物相同的楔角和材料，并且其中第一楔形物的顶点并且第二楔的顶点指向相反的方向。

2. 发明申请

US20070285659A1 Optical spectrum analyzer with continuously rotating tuynable filter 有权
标题翻译：具有连续旋转可旋转滤光片的光谱分析仪
公开(公告)号：US20070285659A1
公开(公告)日：2007-12-13
申请号：US11810873
申请日：2007-06-07
申请人： Yung-Chieh Hsieh , Chiayu Ai
发明人： Yung-Chieh Hsieh , Chiayu Ai
IPC分类号： G01J3/06 , G01J3/28
CPC分类号： G01J3/06 , G01J3/02 , G01J3/021 , G01J3/0289 , G01J3/2889 , G01J3/32 , G01J2003/1243
摘要： An optical spectrum analyzer is implemented with a detector combined with a tunable filter mounted on a stage capable of 360-degree rotation at a constant velocity. Because of the constant rate of angular change, different portions of the input spectrum are detected at each increment of time as a function of filter position, which can be easily measured with an encoder for synchronization purposes. The unidirectional motion of the mirror permits operation at very high speeds with great mechanical reliability. The same improvements may be obtained using a diffraction grating or a prism, in which case the detector or an intervening mirror may be rotated instead of the grating or prism.
摘要翻译：光谱分析仪采用与安装在能够以恒定速度360度旋转的平台上的可调滤波器组合的检测器。由于角度变化的恒定速率，输入频谱的不同部分在每个增量时间上被检测为滤波器位置的函数，这可以通过编码器容易地用于同步目的来测量。镜子的单向运动允许以非常高的速度运行，具有很大的机械可靠性。可以使用衍射光栅或棱镜获得相同的改进，在这种情况下，可以旋转检测器或中间镜来代替光栅或棱镜。

3. 发明授权

US07286757B1 Optical performance monitoring device 有权
标题翻译：光学性能监测装置
公开(公告)号：US07286757B1
公开(公告)日：2007-10-23
申请号：US10758408
申请日：2004-01-14
申请人： Yung-Chieh Hsieh , Chiayu Ai
发明人： Yung-Chieh Hsieh , Chiayu Ai
IPC分类号： H04B10/08 , H04B10/06
CPC分类号： H04B10/07953
摘要： A wavelength beam splitter (WBS) is combined with a conventional tunable filter to sequentially select different channels in a multi-channel communication system. The WBS is characterized by a periodic spectral response with period equal to the channel spacing of the ITU grid. Preferably, the WBS consists of an optical cavity with an optical path length that produces a free-spectral range substantially equal to the channel spacing of the ITU grid. The WBS is used to separate the signal in each channel passband from the noise in the corresponding channel stopband. This provides a signal and a noise output for each channel. A tunable filter is used to scan the channels of the ITU grid sequentially and provide output signals for a single channel at a time. Therefore, a much smaller frequency bandwidth needs to be measured at a time and a less expensive detector may be used.
摘要翻译：波长分束器（WBS）与传统的可调滤波器组合，以在多声道通信系统中顺序地选择不同的声道。 WBS的特征在于具有周期等于ITU网格的信道间隔的周期性频谱响应。优选地，WBS由具有光路长度的光腔组成，该光腔长度产生基本上等于国际电联网格的信道间隔的自由光谱范围。 WBS用于将每个信道通带中的信号与相应信道阻带中的噪声分离。这为每个通道提供信号和噪声输出。可调谐滤波器用于顺序地扫描ITU网络的信道，并一次为单个信道提供输出信号。因此，需要一次测量更小的频率带宽，并且可以使用较便宜的检测器。

4. 发明申请

US20050270544A1 Variable dispersion step-phase interferometers 审中-公开
标题翻译：可变色散阶段相位干涉仪
公开(公告)号：US20050270544A1
公开(公告)日：2005-12-08
申请号：US11146614
申请日：2005-06-06
申请人： Yung-Chieh Hsieh , Chiayu Ai , Chih-Hung Chien
发明人： Yung-Chieh Hsieh , Chiayu Ai , Chih-Hung Chien
IPC分类号： G01B9/02 , G02B6/34 , H04B10/18
CPC分类号： G02B6/29358 , G02B6/29386 , H04B10/25133
摘要： Optical interferometers with variable dispersion are shown. These interferometers are useful as optical interleavers and through the control of their design, are made to have negative and near-zero dispersion. The N-type interleaver has a negative dispersion slope near the center of the pass band. The Z-type interleaver has a dispersion that is close to zero within the pass band. These interleavers can be arranged in various systems to produce low dispersion optical networks. The non-linear phase etalons in the N- and Z-type interleavers taught herein contribute to the device dispersion. The N-Type interleaver includes a linear cavity length that is 1.5 times that of a non-linear cavity. The Z-type interleaver includes two non-linear cavities that are out of phase with each other such that the net dispersion is close to zero.
摘要翻译：示出了具有可变色散的光学干涉仪。这些干涉仪可用作光学交织器并且通过其设计的控制被制成具有负的和接近零的色散。 N型交错器在通带中心附近具有负色散斜率。 Z型交织器在通带内具有接近于零的色散。这些交织器可以布置在各种系统中以产生低色散光网络。这里教导的N型和Z型交织器中的非线性相位标准具有助于器件分散。 N型交错器包括与非线性腔的1.5倍的线性腔长度。 Z型交错器包括彼此不同相的两个非线性空腔，使得净色散接近于零。

5. 发明申请

US20110211194A1 OPTICAL SPECTRUM ANALYZER WITH CONTINUOUSLY ROTATING TUYNABLE FILTER 审中-公开
标题翻译：连续旋转滤光片的光谱分析仪
公开(公告)号：US20110211194A1
公开(公告)日：2011-09-01
申请号：US13103291
申请日：2011-05-09
申请人： YUNG-CHIEH HSIEH , Chiayu Ai
发明人： YUNG-CHIEH HSIEH , Chiayu Ai
IPC分类号： G01J3/28
CPC分类号： G01J3/06 , G01J3/02 , G01J3/021 , G01J3/0289 , G01J3/2889 , G01J3/32 , G01J2003/1243
摘要： An optical spectrum analyzer is implemented with a detector combined with a tunable filter mounted on a stage capable of 360-degree rotation at a constant velocity. Because of the constant rate of angular change, different portions of the input spectrum are detected at each increment of time as a function of filter position, which can be easily measured with an encoder for synchronization purposes. The unidirectional motion of the mirror permits operation at very high speeds with great mechanical reliability. The same improvements may be obtained using a diffraction grating or a prism, in which case the detector or an intervening mirror may be rotated instead of the grating or prism.
摘要翻译：光谱分析仪采用与安装在能够以恒定速度360度旋转的平台上的可调滤波器组合的检测器。由于角度变化的恒定速率，输入频谱的不同部分在每个增量时间上被检测为滤波器位置的函数，这可以通过编码器容易地用于同步目的来测量。镜子的单向运动允许以非常高的速度运行，具有很大的机械可靠性。可以使用衍射光栅或棱镜获得相同的改进，在这种情况下，可以旋转检测器或中间镜来代替光栅或棱镜。

6. 发明授权

US07961316B2 Optical spectrum analyzer with continuously rotating tunable filter 有权
标题翻译：具有连续旋转可调滤波器的光谱分析仪
公开(公告)号：US07961316B2
公开(公告)日：2011-06-14
申请号：US11810873
申请日：2007-06-07
申请人： Yung-Chieh Hsieh , Chiayu Ai
发明人： Yung-Chieh Hsieh , Chiayu Ai
IPC分类号： G01J3/28
CPC分类号： G01J3/06 , G01J3/02 , G01J3/021 , G01J3/0289 , G01J3/2889 , G01J3/32 , G01J2003/1243
摘要： An optical spectrum analyzer is implemented with a detector combined with a tunable filter mounted on a stage capable of 360-degree rotation at a constant velocity. Because of the constant rate of angular change, different portions of the input spectrum are detected at each increment of time as a function of filter position, which can be easily measured with an encoder for synchronization purposes. The unidirectional motion of the mirror permits operation at very high speeds with great mechanical reliability. The same improvements may be obtained using a diffraction grating or a prism, in which case the detector or an intervening mirror may be rotated instead of the grating or prism.
摘要翻译：光谱分析仪采用与安装在能够以恒定速度360度旋转的平台上的可调滤波器组合的检测器。由于角度变化的恒定速率，输入频谱的不同部分在每个增量时间上被检测为滤波器位置的函数，这可以通过编码器容易地用于同步目的来测量。镜子的单向运动允许以非常高的速度运行，具有很大的机械可靠性。可以使用衍射光栅或棱镜获得相同的改进，在这种情况下，可以旋转检测器或中间镜来代替光栅或棱镜。

7. 发明授权

US06816315B1 Optical path length tuner 失效
标题翻译：光路长度调谐器
公开(公告)号：US06816315B1
公开(公告)日：2004-11-09
申请号：US10287340
申请日：2002-11-04
申请人： Chiayu Ai , Yung-Chieh Hsieh , Dar-Yuan Song
发明人： Chiayu Ai , Yung-Chieh Hsieh , Dar-Yuan Song
IPC分类号： G02B2714
CPC分类号： G02B26/0875
摘要： A parallel glass plate mounted on a rotating fixture is used to precisely control the optical path length of a light beam. The glass plate refracts the incident optical signal to increase the length of its optical path as a function of the angle of incidence. The device can easily achieve a precision in the order of nanometers and is particularly suitable to fine tune the cavity length of a resonator and the optical path difference of an interferometer. Accordingly, the preferred application of the invention is in an interferometric interleaver. The glass plate can also be coated with a partially reflective coating to attenuate the optical signal passing therethrough. By judiciously selecting the refractive index, the thermal coefficient of refraction, and the coefficient of thermal expansion of the glass, thermal effects may be virtually eliminated.
摘要翻译：安装在旋转夹具上的平行玻璃板用于精确地控制光束的光路长度。玻璃板折射入射光信号以增加其光路的长度作为入射角的函数。该器件可以容易地达到纳米级的精度，并且特别适用于微调谐振器的腔长度和干涉仪的光程差。因此，本发明的优选应用在干涉式交织器中。玻璃板也可以涂覆有部分反射涂层，以衰减通过其中的光信号。通过明智地选择折射率，热折射系数和玻璃的热膨胀系数，可以实际上消除热效应。

8. 发明授权

US08270067B1 Sagnac delay-line interferometer for DPSK demodulation 失效
标题翻译： Sagnac延迟线干涉仪用于DPSK解调
公开(公告)号：US08270067B1
公开(公告)日：2012-09-18
申请号：US13079131
申请日：2011-04-04
申请人： Yung-Chieh Hsieh , Chiayu Ai
发明人： Yung-Chieh Hsieh , Chiayu Ai
IPC分类号： G02F2/00 , G02B1/10
CPC分类号： H04B10/677 , G02F2001/211
摘要： A DPSK demodulator is implemented in Sagnac interferometer configuration with a delay line element introduced in one or both of the optical paths of the transmitted and reflected beams. Because the two reflected and transmitted beams travel on the same optical path (though in opposite directions), the Sagnac interferometer provides all the advantages of a common-path interferometer, is thermally and mechanically stable, and the phase requirements are greatly reduced. In its simplest form, the Sagnac DPSK demodulator. In the preferred embodiment, the beam-splitting surface and one of the mirrors are combined into a rhomb beam-splitter structure and the other two mirrors into a right-angle prism. In a DQPSK embodiment, the input beam is split by an upfront beam splitter into two parallel beams that are then directed toward the rhomb-beam-splitter/right-angle-prism combination of the invention.
摘要翻译：在Sagnac干涉仪配置中实现DPSK解调器，其中在发射和反射光束的一个或两个光路中引入延迟线元件。由于两个反射和发射的光束在相同的光路上行进（尽管在相反的方向），所以Sagnac干涉仪提供了共轨干涉仪的所有优点，是热和机械稳定的，相位要求大大降低。在其最简单的形式，Sagnac DPSK解调器。在优选实施例中，分束表面和一个反射镜被组合成菱形分束器结构，另外两个反射镜成直角棱镜。在DQPSK实施例中，输入光束由前置分束器分裂成两个平行光束，然后被引导到本发明的菱形 - 分束器/直角 - 棱镜组合。

9. 发明授权

US06909549B1 Tunable filter for optical add/drop module 失效
标题翻译：光学分插模块可调滤波器
公开(公告)号：US06909549B1
公开(公告)日：2005-06-21
申请号：US10384122
申请日：2003-03-06
申请人： Yung-Chieh Hsieh , Chiayu Ai , Hong Li , Dar-Yuan Song
发明人： Yung-Chieh Hsieh , Chiayu Ai , Hong Li , Dar-Yuan Song
IPC分类号： G02B6/34 , G02B27/00
CPC分类号： G02B6/29383 , G02B6/2713 , G02B6/2766 , G02B6/29367 , G02B6/29395
摘要： A tunable filter includes a polarizing beam splitter and a half-wave plate that produce two equally polarized beams from an arbitrarily polarized input light. The polarized beams are directed toward a tunable component that consists of an optical substrate coated with a filter and a reflective element on its back and front surface, respectively. The pass and stop beams emerging from the tunable component are retro-reflected by roof structures and passed again through the filter. As a result of this combination of components, the filter's performance is not dependent on polarization and the filter's output channels are not shifted or deviated by tuning.
摘要翻译：可调滤波器包括偏振分束器和半波片，其从任意偏振的输入光产生两个等偏振光束。偏振光束分别指向可调组件，该可调组件由分别在其背面和前表面上涂覆有过滤器和反射元件的光学衬底组成。从可调组件出来的通过和停止梁被屋顶结构反射，并再次通过过滤器。由于组件的这种组合，滤波器的性能不依赖于极化，并且滤波器的输出通道不会通过调谐偏移或偏移。

10. 发明申请

US20230030757A1 FORMATION OF A BEAM WITH A FLAT-TOP PROFILE AND ELONGATED CROSS-SECTION AND USE OF SAME 有权
公开(公告)号：US20230030757A1
公开(公告)日：2023-02-02
申请号：US17868016
申请日：2022-07-19
申请人： Yung-Chieh Hsieh , Chiayu Ai
发明人： Yung-Chieh Hsieh , Chiayu Ai
IPC分类号： H01S3/00 , G02B27/09 , G02B27/12
摘要： Methodology of forming a substantially flat-top illuminating light beam, from a beam at the laser output having a conventionally non-uniform distribution of irradiance, with the use of only a birefringent prismatic element and light-focusing optics. Preferably, the cross-sectional area of such illuminating light distribution is shaped to be elongated or even substantially rectangular to have it used advantageously in various metrological situations such as, for example, the operation of a moving particle analyzer.

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