公开(公告)号：US20120134011A1

公开(公告)日：2012-05-31

申请号：US13307463

申请日：2011-11-30

Applicant: Masato FUJIWARA ,  Kenji TAIRA

Inventor： Masato FUJIWARA ,  Kenji TAIRA

IPC: G02F1/365 ,  G02F2/02

CPC classification number: H04B10/508 ,  H01S3/0057 ,  H01S3/0092 ,  H04B10/50

Abstract: The optical fiber delivery system for delivering optical short pulses includes: a chirped pulse source (10) for emitting an up-chirped optical short pulse having high peak power; optical waveguide unit (20) for delivering the optical short pulse emitted from the chirped pulse source (10); negative group-velocity dispersion generation unit (30) for providing negative group-velocity dispersion to the optical short pulse exited from the optical waveguide unit (20); and an optical fiber (40) for delivering the optical short pulse exited from the negative group-velocity dispersion generation unit (30), along a desired distance, in which the optical short pulse emitted from the chirped pulse source (10) is adapted to be exited, from the optical fiber (40), as a down-chirped optical short pulse that is substantially free of waveform distortion resulting from higher-order dispersion.

Abstract translation: 用于发送光学短脉冲的光纤传送系统包括：用于发射具有高峰值功率的上行啁啾光学短脉冲的啁啾脉冲源（10） 光波导单元（20），用于传送从所述啁啾脉冲源（10）发射的光学短脉冲; 用于对从光波导单元（20）退出的光短脉冲提供负群速度色散的负群速度色散产生单元（30）; 以及光纤（40），用于沿着期望的距离传送从负组 - 速度色散产生单元（30）退出的光学短脉冲，其中从啁啾脉冲源（10）发射的光学短脉冲适用于 作为基本上没有由高阶色散引起的波形失真的向下啁啾的光学短脉冲，从光纤（40）退出。

公开(公告)号：US20120238820A1

公开(公告)日：2012-09-20

申请号：US13419661

申请日：2012-03-14

Applicant: Masato FUJIWARA ,  Kenji TAIRA

Inventor： Masato FUJIWARA ,  Kenji TAIRA

IPC: A61B1/06 ,  G02B21/00 ,  B01J19/12

CPC classification number: G01N21/6458 ,  A61B5/0075 ,  G01N21/636 ,  G01N2201/0697 ,  G02B21/0008 ,  G02B21/06 ,  G02B23/2469 ,  H01S3/0057

Abstract: Provided is a nonlinear optical device capable of alleviating, without the need for a complicated compensation mechanism, temporal broadening and the waveform distortion resulting from a group-velocity dispersion slope, to thereby irradiate an object with short optical pulses having high peak power. The nonlinear optical device includes a short optical pulse source (10) for generating short optical pulses and a short optical pulse delivery system (20) for delivering the short optical pulses generated from the short optical pulse source to an object, in which there is generated substantially no nonlinear optical effect and there is substantially no amount of group-velocity dispersion, the short optical pulse source generates short optical pulses, and the short optical pulses have a spectral width (full width at half maximum) λFWHM satisfying λ1

Abstract translation: 本发明提供一种能够不需要复杂的补偿机制的时间变宽和由群速度色散斜率引起的波形失真的非线性光学装置，从而以具有高峰值功率的短光脉冲照射物体。 非线性光学装置包括用于产生短光脉冲的短光脉冲源（10）和用于将由短光脉冲源产生的短光脉冲输送到物体的短光脉冲输送系统（20），其中产生 基本上没有非线性光学效应，并且基本上没有数量的群速度色散，短光脉冲源产生短光脉冲，短光脉冲具有满足λ1<λFWHM<λ2的光谱宽度（半峰全宽）λFWHM 。

公开(公告)号：US20110164249A1

公开(公告)日：2011-07-07

申请号：US12939495

申请日：2010-11-04

Applicant: Takeharu INNAMI ,  Kenji TAIRA ,  Hiroyoshi YAJIMA ,  Hiroya FUKUYAMA ,  Mitsuru NAMIKI ,  Makoto IGARASHI ,  Shunji TAKEI

Inventor： Takeharu INNAMI ,  Kenji TAIRA ,  Hiroyoshi YAJIMA ,  Hiroya FUKUYAMA ,  Mitsuru NAMIKI ,  Makoto IGARASHI ,  Shunji TAKEI

IPC: G01J3/28

CPC classification number: A61B1/00186 ,  A61B1/00165 ,  A61B1/043 ,  A61B1/063 ,  A61B1/0638 ,  A61B1/0646 ,  A61B1/07 ,  A61B5/0068 ,  A61B5/0071 ,  A61B5/0075 ,  A61B5/0084 ,  G01N21/49 ,  G01N21/59 ,  G01N21/645 ,  G01N2021/6484 ,  G02B21/0024 ,  G02B23/24

Abstract: Optical spectrum of a light irradiated on the object, a spontaneous light emitted from within the object or a surface thereof, a scattered light, a transmitted light, a reflected light or a refracted light from within the object or a surface thereof generated by irradiating light on the object is resolved by amplifying said lights in a bandwidth narrower than the bandwidth of the optical spectrum of said lights. Thus, a method for detecting optical spectrum is provided in which signal intensity is amplified while deterioration of spectral data is suppressed.

Abstract translation: 照射在物体上的光的光谱，从物体或其表面内发射的自发光，散射光，透射光，反射光或来自物体内的折射光或其通过照射光产生的表面 通过在比所述光的光谱的带宽窄的带宽内放大所述光来解析物体。 因此，提供了一种用于检测光谱的方法，其中信号强度在光谱数据的劣化被抑制的同时被放大。

公开(公告)号：US20150335247A1

公开(公告)日：2015-11-26

申请号：US13821138

申请日：2011-09-07

Applicant: Kenji TAIRA

Inventor： Kenji TAIRA

IPC: A61B5/00 ,  A61B1/06 ,  A61B19/00 ,  A61B1/00

CPC classification number: A61B5/0062 ,  A61B1/00172 ,  A61B1/06 ,  A61B5/0066 ,  A61B5/7257 ,  A61B90/20 ,  A61B2576/00

Abstract: Provided is an optical imaging system which visualizes a deep portion of a scattering body. The optical imaging system generates an image of an object to be inspected by removing a signal resulting from light reflected and scattered once by a surface of the object to be inspected from the signal obtained by means of an optical system analogous to Optical Coherence Tomography, thereby extracting a signal resulting from multiply scattered light.

Abstract translation: 提供了一种使散射体的深部可视化的光学成像系统。 光学成像系统通过从通过类似于光学相干断层扫描的光学系统获得的信号中去除由被检查物体的表面反射和散射的光一次产生的光产生的待检查对象的图像，从而 提取由多重散射光产生的信号。

公开(公告)号：US20110128532A1

公开(公告)日：2011-06-02

申请号：US12958578

申请日：2010-12-02

Applicant: Kenji TAIRA

Inventor： Kenji TAIRA

IPC: G01J1/42

CPC classification number: G01J9/04 ,  G01J2009/0226 ,  G02B6/02042 ,  G02B21/0032 ,  G02B21/0048 ,  G02B21/0076 ,  G02B26/103

Abstract: Provided are a photodetector device and a photodetection method as well as a microscope and an endoscope allowing the heterodyne detection of a desired light to be detected with high sensitivity and at a high SN ratio. A photodetector device comprises a local light emitting unit for generating a local light in temporally unstable interference condition with a light to be detected and a photoelectric conversion unit for generating beat signals between the local light and the light to be detected by photoelectric conversion. The light is detected in heterodyne detection based on an output of the photoelectric conversion unit.

Abstract translation: 提供了一种光电检测器件和光电检测方法以及允许以高灵敏度和高SN比检测期望光的外差检测的显微镜和内窥镜。 光电检测器装置包括：本地发光单元，用于在时间上不稳定的干涉条件下产生局部光，并检测光;以及光电转换单元，用于通过光电转换在本地光和待检测光之间产生拍频信号。 基于光电转换单元的输出，以外差检测方式检测光。

公开(公告)号：US20080260319A1

公开(公告)日：2008-10-23

申请号：US12055059

申请日：2008-03-25

Applicant: Kenji TAIRA ,  Hirokazu KUBO

Inventor： Kenji TAIRA ,  Hirokazu KUBO

IPC: G02F1/01

CPC classification number: G02F1/011 ,  G02F2203/255 ,  H04B10/25137

Abstract: An optical fiber delivery system for delivering ultrashort optical pulses that can efficiently transmit high peak power, ultrashort optical pulses from an optical pulse source to a desired position in an optical apparatus is provided. An optical system including such an optical fiber delivery system is also provided. The optical fiber delivery system includes light waveguide means 20 for receiving high-pea power, ultrashort optical pulses and transmitting the optical pulses, negative group-velocity dispersion generation means 30 for providing negative group-velocity dispersion to the optical pulses transmitted through the light waveguide means 20, and an optical fiber 40 that transmits the optical pulses transmitted through the negative group-velocity dispersion generation means 30 along a desired distance. The incident ultrashort optical pulses that have been injected into the light waveguide means 20 are converted into down-chirped pulses.

Abstract translation: 提供了一种用于传送超短光脉冲的光纤传送系统，其可以将高峰值功率，超短光脉冲从光脉冲源有效地传输到光学设备中的期望位置。 还提供了包括这种光纤传送系统的光学系统。 光纤传送系统包括用于接收高豌豆光功率，超短光脉冲并传输光脉冲的光波导装置20，用于向通过光波导传输的光脉冲提供负群速度色散的负群速度色散产生装置30 以及光纤40，其沿着期望的距离传送通过负群速度色散产生装置30传输的光脉冲。 已经注入到光波导装置20中的入射超短光脉冲被转换为下陷波脉冲。