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    • 6. 发明申请
    • Variable dispersion compensator
    • 可变色散补偿器
    • US20070147840A1
    • 2007-06-28
    • US11641743
    • 2006-12-20
    • Toshiki SugawaraKazuhiko HosomiSatoshi Makio
    • Toshiki SugawaraKazuhiko HosomiSatoshi Makio
    • H04J14/02
    • G02B6/29398G02B6/29358G02B6/29364G02B6/29394G02B6/29395
    • The present invention provides: (1) a compensator that compensates a wide range of amount of dispersion of light in a wide bandwidth band; and (2) a variable dispersion slope compensator applicable to the case where a transmission path suitable for a wavelength division multiplexing transmission system produces a wavelength dispersion slope. The present invention realizes: (1) a variable dispersion compensator that compensates a wide range of amount of dispersion of light in a wide bandwidth band; and (2) a variable dispersion slope compensator suitable for a wavelength division multiplexing transmission system. To realize the above, a dispersion compensating unit is provided with a structure in which a mirror is disposed in parallel to or with a slight angle relative to an etalon to reflect a light beam emitted from a collimator on the etalon multiple times and then emit the light beam into another collimator.
    • 本发明提供:(1)补偿器,其补偿在宽带宽范围内的宽范围的光分散; 和(2)可变色散斜率补偿器,适用于适用于波分复用传输系统的传输路径产生波长色散斜率的情况。 本发明实现:(1)可变色散补偿器,其补偿在宽带宽范围内的宽范围的色散; 和(2)适用于波分复用传输系统的可变色散斜率补偿器。 为了实现上述目的,色散补偿单元具有这样一种结构,其中反射镜相对于标准具平行或以微小的角度设置,以将从准直器发射的光束多次反射到标准具上,然后发射 光束进入另一个准直仪。
    • 8. 发明授权
    • Micro sensor device
    • 微传感器装置
    • US07450789B2
    • 2008-11-11
    • US11485294
    • 2006-07-13
    • Kazuhiko HosomiHiroji YamadaToshio KatsuyamaYasuhiko ArakawaToshihiko Fukamachi
    • Kazuhiko HosomiHiroji YamadaToshio KatsuyamaYasuhiko ArakawaToshihiko Fukamachi
    • G02B6/00
    • G02B6/12004G01J3/26G01N21/4133G02B2006/1213G02B2006/12164
    • The present invention provides an ultra-mini and low cost refractive index measuring device applicable to biochemical measurements of an extremely minute amount of a sample. The refractive index measuring device uses a photonic crystal without any requirement of an external spectrograph or the like.The micro sensor device according to the present invention includes a light source emitting light with a single wavelength, a microcavity in which a resonant wavelength varies depending on a position thereof. A refractive index of a material to be measured is measured based on positional information by detecting a transmitting position of light changing in response to a change of a refractive index of the measured material. The micro sensor device according to the present invention enables measurement of a refractive index of a material to be measured without using a large-scale spectrograph.
    • 本发明提供了一种适用于极微量样品的生物化学测量的超小型和低成本折射率测量装置。 折射率测量装置使用光子晶体,而不需要外部光谱仪等。 根据本发明的微型传感器装置包括发射具有单一波长的光的光源,其中谐振波长根据其位置而变化的微腔。 通过检测响应于测量材料的折射率的变化而变化的光的透射位置,基于位置信息来测量要测量的材料的折射率。 根据本发明的微型传感器装置能够在不使用大规模光谱仪的情况下测量待测材料的折射率。
    • 10. 发明授权
    • Dispersion compensator and optical transmission system using same
    • 色散补偿器和使用它的光传输系统
    • US06731846B2
    • 2004-05-04
    • US09941697
    • 2001-08-30
    • Kazuhiko HosomiToshio KatsuyamaYoung-kun LeeMasahiro Ojima
    • Kazuhiko HosomiToshio KatsuyamaYoung-kun LeeMasahiro Ojima
    • G02B602
    • G02F1/035B82Y20/00G02B6/1225G02B6/29317G02B6/29394G02B6/29395G02F2202/32
    • The present invention aims to provide a dispersion compensator which is ultra small in size and low in cost and capable of controlling dispersion compensating values, and an optical transmission system using the dispersion compensator. A dispersion property of light that propagates through defects in a photonic crystal, is used to compensate for each wavelength dispersion. A dispersion compensator comprises a dispersion-compensating-waveguide array in which a plurality of dispersion compensating waveguides having dispersion compensating values different from one another are placed, a drive unit for driving the dispersion-compensating-waveguide array, and optical fibers for inputting/outputting a light signal. Each of the dispersion compensating waveguides comprises regular waveguides and a waveguide made of defects in photonic crystal. The lengths of the waveguides made of the defects in photonic crystal are changed one by one to make dispersion compensating values different from one another.
    • 本发明旨在提供一种尺寸超小,成本低且能够控制色散补偿值的色散补偿器,以及使用该色散补偿器的光传输系统。 使用通过光子晶体中的缺陷传播的光的分散特性来补偿每个波长色散。 色散补偿器包括色散补偿波导阵列,其中放置了具有彼此不同的色散补偿值的多个色散补偿波导,用于驱动色散补偿波导阵列的驱动单元和用于输入/输出的光纤 一个光信号。 每个色散补偿波导包括规则波导和由光子晶体中的缺陷制成的波导。 由光子晶体中的缺陷构成的波导的长度逐一变化,使得色散补偿值彼此不同。