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1. 发明申请

US20220229239A1 OPTICAL DEVICE 有权
公开(公告)号：US20220229239A1
公开(公告)日：2022-07-21
申请号：US17217232
申请日：2021-03-30
申请人： Santec Corporation
发明人： Yasuki Sakurai
IPC分类号： G02B6/35 , G02B6/293 , H04B10/50 , H04B10/572 , H04B10/61
摘要： An optical device includes: wavelength selection elements; an optical switch that switches a propagation path of input light that is from an input port such that the input light propagates to one designated wavelength selection element among the wavelength selection elements; and a separation element disposed in the propagation path of the input light between the input port and the wavelength selection elements and that separates the input light into wavelength components.

2. 发明授权

US11213200B2 Topographical imaging using combined sensing inputs 有权
公开(公告)号：US11213200B2
公开(公告)日：2022-01-04
申请号：US15928827
申请日：2018-03-22
申请人： SANTEC CORPORATION
发明人： Changho Chong
IPC分类号： A61B3/14 , A61B3/10 , G01B9/02 , H01S5/14 , G01N21/47
摘要： An OCT system is arranged to capture a three-dimensional (3D) OCT scan of a target. The OCT system projects a beam scan towards the target, and the OCT system generates data corresponding to the beam scan. Additionally, an image sensor is arranged to capture an image of a trace of the beam scan on a surface of the target. Using the image of the trace, various characteristics of the target are determined.

3. 发明授权

US10935727B2 Tunable filter 有权
公开(公告)号：US10935727B2
公开(公告)日：2021-03-02
申请号：US16791793
申请日：2020-02-14
申请人： Santec Corporation
发明人： Yasuki Sakurai
IPC分类号： G02B6/293 , G02B6/42 , G02B6/35 , G02B6/28
摘要： A variable wavelength filter includes: an input optical fiber; a diffraction grating that disperses input light from the input optical fiber; a variable mirror that has a reflective surface, wherein an angle of the reflective surface is adjustable, the variable mirror reflects the input light dispersed by the diffraction grating, the input light reflected by the variable mirror passes through a normal optical path, the input light that passes through the normal optical path has a wavelength band defined based on the angle of the reflective surface, and the defined wavelength band has a center wavelength corresponding to the angle of the reflective surface; an output optical fiber that outputs a portion of the input light that has passed through the normal optical path; and an optical detector disposed on a propagation path of the input light from the input optical fiber to the output optical fiber.

4. 发明申请

US20200081319A1 OPTICAL SYSTEM 审中-公开
公开(公告)号：US20200081319A1
公开(公告)日：2020-03-12
申请号：US16567636
申请日：2019-09-11
申请人： Santec Corporation
发明人： Kouki Totsuka , Masahiro Kawasugi , Takahide Sakaidani , Keiji Isamoto
IPC分类号： G02F1/35
摘要： An optical system includes: a difference-frequency-light generator that multiplexes output lights from a signal-light light source and an excitation-light light source and inputs the output lights to a nonlinear optical material to generate and output a difference-frequency light having a wavenumber that corresponds to a wavenumber difference between light from the signal-light and from the excitation-light light source, where one of the signal-light source or the excitation-light source is a wavelength-sweeping light source; a splitter that splits a portion of light output from the wavelength-sweeping light source into a first and a second reference light; and an equal-wavenumber-signal generator that receives the first reference light, via an interferometer, to generate and output an equal-wavenumber signal that fluctuates in equal wavenumber intervals according to wavelength sweeping of the wavelength-sweeping light source.

5. 发明申请

US20170316756A1 SPATIAL OPTICAL MODULATING SYSTEM 审中-公开
公开(公告)号：US20170316756A1
公开(公告)日：2017-11-02
申请号：US15335088
申请日：2016-10-26
申请人： Santec Corporation
发明人： Yasuki Sakurai
IPC分类号： G09G5/10 , G02F1/29 , G09G3/36
CPC分类号： G09G5/10 , G02F1/293 , G02F2203/18 , G09G3/346 , G09G3/3696 , G09G2310/027 , G09G2320/0242 , G09G2320/028
摘要： A system includes a spatial light modulator and a controller. The spatial light modulator is configured to perform phase modulation of a light that passes through a liquid crystal by applying individual voltages to the liquid crystal from each of a plurality of electrodes. The controller is configured to control the voltages applied to the liquid crystal from each of the plurality of electrodes based on phase image data. The phase image data represents values of each pixel corresponding to each of the plurality of electrodes by predetermined gradations. The controller converts gradation values, which are the values of each pixel, into voltages input to the electrodes corresponding to each pixel. The controller is configured to change a fluctuation width from a minimum value to a maximum value of the input voltages corresponding to a fluctuation width from a minimum value to a maximum value of the gradation values.

6. 发明授权

US08797638B2 Wavelength selective optical switch device and method of controlling characteristics thereof 有权
标题翻译：波长选择性光开关装置及其特性的控制方法
公开(公告)号：US08797638B2
公开(公告)日：2014-08-05
申请号：US13632937
申请日：2012-10-01
申请人： Santec Corporation
发明人： Yuji Hotta
IPC分类号： G02F1/29 , G02F1/01 , G02F1/03 , G02B5/04 , G02B27/10 , H04J14/00
CPC分类号： G02F1/2955 , G02B26/0833 , G02F2203/05 , H04Q11/0005 , H04Q2011/0016 , H04Q2011/0026
摘要： A wavelength selective optical switch device includes an incidence and exit part where a signal beam made of light of a multiplicity of wavelengths enters and a signal beam of a selected wavelength exits, a wavelength dispersion element that spatially disperses a signal beam according to the wavelength thereof and multiplexes reflected light, a condensing element that condenses the light dispersed by the wavelength dispersion element onto a two-dimensional plane, and a wavelength selection element that uses a multilevel optical phased array arranged in a position to receive incident light developed on an xy-plane made of an x-axis direction and a y-axis direction perpendicular thereto developed according to a wavelength, having a multiplicity of pixels arrayed in a lattice on the xy-plane, and that cyclically changes the phase shift amount in the y-axis direction to a sawtooth wave pattern for each pixel on the x-axis.
摘要翻译：波长选择性光开关装置包括入射部和出射部，其中由多个波长的光构成的信号束进入并且所选择的波长的信号束退出，波长色散元素根据其波长空间分散信号光束并且将反射光，将由波长色散元件分散的光聚光的聚光元件多路复用到二维平面上;以及波长选择元件，其使用布置在接收入射光的位置上的多光学相位阵列，由x轴方向和y轴方向垂直的平面根据波长显影，具有排列在xy平面上的格子中的多个像素，并且循环改变y轴上的相移量朝向x轴上每个像素的锯齿波图案。

7. 发明授权

US08488229B2 Method for calibration of optically variable filter array apparatus 有权
标题翻译：光学可变滤波器阵列装置的校准方法
公开(公告)号：US08488229B2
公开(公告)日：2013-07-16
申请号：US13019650
申请日：2011-02-02
申请人： Yuji Hotta
发明人： Yuji Hotta
IPC分类号： G02F1/23
CPC分类号： G02F1/133553 , G02F1/136277 , H04J14/0212
摘要： In a wavelength selection element employed in an optically variable filter array apparatus, pixels in a line form are placed into a light reflection state so that wavelength-scanned light can be incident on the optically variable filter array apparatus. On the basis of the wavelength of scanned reflection light and the location of the pixel in a light reflection state at a timing of acquisition of output, the relationship between the x coordinate of the wavelength selection element and wavelength is determined. This makes it possible to achieve calibration of the optically variable filter array apparatus capable of selection of a desired wavelength with respect to a desired channel from multi-channel WDM light.
摘要翻译：在光学可变滤波器阵列装置中使用的波长选择元件中，将线形式的像素置于光反射状态，使得波长扫描光能够入射到光学可变滤光器阵列装置上。基于扫描反射光的波长和在获取输出的定时的光反射状态下的像素的位置，确定波长选择元素的x坐标与波长之间的关系。这使得可以实现能够相对于来自多通道WDM光的所需通道选择所需波长的光学可变滤波器阵列装置的校准。

8. 发明授权

US08437634B2 Wavelength selective optical switch device 有权
标题翻译：波长选择光开关器件
公开(公告)号：US08437634B2
公开(公告)日：2013-05-07
申请号：US12981736
申请日：2010-12-30
申请人： Yasuki Sakurai
发明人： Yasuki Sakurai
IPC分类号： H04J14/00
CPC分类号： G02B6/356 , G02F1/292 , G02F1/31 , G02F2203/58
摘要： In a wavelength selective optical switch device that disperses a WDM light beam according to their wavelengths. Dispersed light beams is applied to a wavelength selecting element. Incident light beams are separately reflected in different directions according to their wavelengths by use of the multi-level optical phased array. In the optical phased array, even when the number of multi levels is small, by setting the maximum phase shift amount of the phased array to be at least 1.5 π and less than 2.0 π, wavelength dependence is reduced, thereby reducing crosstalk. In this manner, the wavelength dependence, in turn, crosstalk can be reduced.
摘要翻译：在根据其波长分散WDM光束的波长选择光开关装置中。分散的光束被施加到波长选择元件。通过使用多级光学相控阵列，入射光束根据其波长在不同方向上分别反射。在光相位阵列中，即使多级的数量少，通过将相控阵列的最大相移量设定为至少1.5pi且小于2.0p1，波长相关性也降低，从而减少串扰。以这种方式，可以降低波长依赖性，即串扰。

9. 发明授权

US08107818B2 Tunable filter 有权
标题翻译：可调滤波器
公开(公告)号：US08107818B2
公开(公告)日：2012-01-31
申请号：US12271955
申请日：2008-11-17
申请人： Yasuki Sakurai , Changho Chong
发明人： Yasuki Sakurai , Changho Chong
IPC分类号： H04J14/02
CPC分类号： G02B6/29313 , G02B6/29308 , G02B6/2931 , H04J14/02
摘要： A light is incident on a refractive diffraction grating 13, and is distributed for each of wavelengths at different angles to be outputted. A lens 14 converts the distributed lights into belt-shaped lights, and the belt-shaped lights are incident on a mirror substrate 15 having selective reflection regions 17-1 to 17-x. By moving the mirror substrate 15 toward a direction different from a distribution direction of the belt-shaped lights, only the light of any one of wavelengths is reflected. Then, the light returning to the refractive diffraction grating 13 is reflected to an incident direction of the original light. Accordingly, a tunable filter which is able to select a light of an arbitrary wavelength by moving the mirror substrate 15 can be realized.
摘要翻译：光入射到折射衍射光栅13上，并以不同角度的每个波长分布输出。透镜14将分布的光转换为带状光，并且带状光入射到具有选择性反射区域17-1至17-x的反射镜基板15上。通过将镜面基板15朝向与带状光的分布方向不同的方向移动，仅反射任何波长的光。然后，返回到折射衍射光栅13的光被反射到原始光的入射方向。因此，能够实现能够通过移动镜面基板15来选择任意波长的光的可调滤波器。

10. 发明申请

US20050219543A1 Optical pulse evaluation device and in-service optical pulse evaluation device 失效
标题翻译：光脉冲评估装置及在线光脉冲评估装置
公开(公告)号：US20050219543A1
公开(公告)日：2005-10-06
申请号：US11094168
申请日：2005-03-31
申请人： Noboru Uehara , Yuichi Takushima , Yasuyuki Ozeki , Yoichi Hirota
发明人： Noboru Uehara , Yuichi Takushima , Yasuyuki Ozeki , Yoichi Hirota
IPC分类号： G01J3/26 , G01B9/02 , G01J9/00 , G01J11/00 , G01M11/00 , H04B10/07 , H04B10/079 , H04B10/508 , H04B10/524 , H04B10/556 , H04B10/58
CPC分类号： G01J11/00
摘要： To obtain an optical pulse evaluation device and an in-service optical pulse evaluation device, which are capable of characteristics evaluation of an optical pulse itself or a sample launched therein, in a relatively high bit-rate region. Optical pulse 42 output repeatedly from an optical pulse light source 43 at a frequency fREP passes through sample 93 n sample stage 91 to be scanned by tunable wavelength optical band pass filter 47. A detection result by photodiode 51 is input in phase detection circuit 45 accompanying with the reference frequency fREP and the result is operated by operation unit 58C of personal computer 52 to know a spectral phase and a spectral intensity of the optical pulse passed through sample 93. Correcting this by applying the operation result in the state, where sample 93 has been removed enables to evaluate characteristics such as deterioration of optical pulse 42 by using sample 93. It is also possible to evaluate a waveform of optical pulse 42 as a light source. The present invention can evaluate the optical pulse in in-service.
摘要翻译：为了获得在相对高的比特率区域中能够对光脉冲本身或其中发射的样本进行特性评估的光脉冲评估装置和在用光脉冲评估装置。从光脉冲光源43以频率fREP反复输出的光脉冲42通过样本93n样本台91，由可调波长光带通滤波器47进行扫描。光电二极管51的检测结果输入到相位检测电路45中参考频率fREP，并且结果由个人计算机52的操作单元58C操作，以知道通过样本93的光脉冲的光谱相位和光谱强度。通过将运算结果应用于状态下进行校正，其中样本 93已经被去除使得能够通过使用样本93来评估诸如光脉冲42的劣化的特性。还可以评估作为光源的光脉冲42的波形。本发明可以评估在使用中的光脉冲。

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