Spectroscopic method and spectral device
    54.
    发明专利
    Spectroscopic method and spectral device 审中-公开
    光谱法和光谱仪器

    公开(公告)号:JP2012073262A

    公开(公告)日:2012-04-12

    申请号:JP2011244028

    申请日:2011-11-07

    Abstract: PROBLEM TO BE SOLVED: To realize a device for measuring an optical-absorption coefficient of a sample at a high sensitivity.SOLUTION: A ring-down spectral device uses a wavelength-variable femtosecond soliton pulse light source 1. Pulsed light is input to a looped optical fiber 6 through a first optical transmission path 4 and an optical change-over switch 5. Ring-down pulsed light is input to a homodyne detector 40 through the optical change-over switch 5. Meanwhile, pulsed light transmitting through the first optical transmission path 4 is input to each optical transmission path constituting a second optical transmission path 20, in a branching manner, through an optical directional coupler 8 and a first optical switch element 12. The pulsed light transmitting through the second optical transmission path 20 is input to the homodyne detector 40 as reference light and is synchronously detected. Optical path length of multiple optical transmission paths constituting the second optical transmission path 20 sequentially differs by the length of optical fiber 6, and each of the optical transmission paths can microscopically fluctuate the optical path length.

    Abstract translation: 要解决的问题:实现用于以高灵敏度测量样品的光吸收系数的装置。 解决方案:降噪频谱装置使用波长可变飞秒激光脉冲光源1.脉冲光通过第一光传输路径4和光转换开关5输入到环形光纤6中。环 通过光转换开关5将向下的脉冲光输入到零差检测器40.同时,通过第一光传输路径4传输的脉冲光被输入到构成第二光传输路径20的每个光传输路径,分支 通过光学定向耦合器8和第一光开关元件12.透射通过第二光传输路径20的脉冲光作为参考光输入到零差检测器40,并被同步检测。 构成第二光传输路径20的多个光传输路径的光路长度依次不同于光纤6的长度,并且每个光传输路径都可以显微地波动光路长度。 版权所有(C)2012,JPO&INPIT

    Spectrometric instrument
    58.
    发明专利
    Spectrometric instrument 有权
    光谱仪

    公开(公告)号:JP2011252790A

    公开(公告)日:2011-12-15

    申请号:JP2010126653

    申请日:2010-06-02

    Inventor: SAKURAI KAZUNORI

    CPC classification number: G01J3/51 G01J3/10 G01J3/502 G01J3/513

    Abstract: PROBLEM TO BE SOLVED: To attain low power consumption and a long life in a light source, while suppressing deterioration in measurement precision in a colorimeter, and also to improve measurement precision in a spectroscopic analyzer.SOLUTION: A spectrometric instrument includes: a light source 30; a light source drive part 10 including a power control part 12 for controlling the drive power of the light source; a measurement optical system 40 including a spectroscopic part 34 for dispersing light in accordance with each wavelength; a light reception part 50 (50') for receiving reflection light or transmission light from a sample 32 (32') being a measurement object, which passes through the measurement optical system, and converting the light into an electric signal; and a measurement part 60 for measuring light reception intensity corresponding to the wavelength of the light, based on the electric signal to be obtained from the light reception part. The power control part 12 changes power to be applied to the light source by association with the wavelength of the light in accordance with at least one among the spectroscopic characteristic of the light source, the spectroscopic characteristic of the measurement optical system, and the light reception sensitivity characteristic of the light reception part.

    Abstract translation: 要解决的问题:为了在光源中实现低功耗和长寿命,同时抑制色度计中的测量精度的劣化,并且还提高了光谱分析仪中的测量精度。 解决方案:光谱仪包括:光源30; 光源驱动部10,其包括用于控制光源的驱动力的功率控制部12; 测量光学系统40,包括用于根据每个波长分散光的光谱部分34; 用于接收来自作为测量对象的测试对象的样品32(32')的反射光或透射光的光接收部分50(50'),其通过测量光学系统,并将光转换成电信号; 以及测量部分60,用于根据从光接收部分获得的电信号来测量与光的波长相对应的光接收强度。 功率控制部分12根据光源的光谱特性,测量光学系统的光谱特性和光接收中的至少一个,与光的波长相关联地改变施加到光源的功率 光接收部的灵敏度特性。 版权所有(C)2012,JPO&INPIT

    Wavelength swept light source apparatus and imaging device employing the same
    60.
    发明专利
    Wavelength swept light source apparatus and imaging device employing the same 审中-公开
    波长光束光源装置和使用其的成像装置

    公开(公告)号:JP2011187947A

    公开(公告)日:2011-09-22

    申请号:JP2011025251

    申请日:2011-02-08

    Abstract: PROBLEM TO BE SOLVED: To provide a light source apparatus capable of producing stable oscillation and performing high-speed wavelength sweeping over a desired wavelength range. SOLUTION: A wavelength swept light source apparatus in which oscillation wavelength is continuously changeable includes a resonator comprising therein: an optical amplification medium that amplifies light; a first device which disperses light emitted from the optical amplification medium in accordance with the wavelength of the light; a second device comprising non-focusing optical elements for collimating the beams having different wavelengths dispersed by the first device; and a selecting device for selecting a beam having a specific wavelength among the beams collimated by the second device. The beam having the specific wavelength selected by the selecting device is fed back to the optical amplification medium by the swept light source apparatus. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:提供能够产生稳定振荡并且在期望波长范围内执行高速波长扫描的光源装置。 解决方案:其中振荡波长连续可变的波长扫描光源装置包括:包括其中的谐振器:放大光的光放大介质; 第一装置,其根据光的波长分散从光放大介质发射的光; 第二装置,包括用于准直由第一装置分散的不同波长的光束的非聚焦光学元件; 以及选择装置,用于选择由第二装置准直的光束中具有特定波长的光束。 由选择装置选择的具有特定波长的光束被扫描光源装置反馈到光放大介质。 版权所有(C)2011,JPO&INPIT

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