公开(公告)号：US20100246614A1

公开(公告)日：2010-09-30

申请号：US12748083

申请日：2010-03-26

Applicant: Hiroyuki Koshi ,  Koji Horikawa

Inventor： Hiroyuki Koshi ,  Koji Horikawa

IPC: H01S3/10

CPC classification number: H01S5/0617 ,  H01S5/024 ,  H01S5/02415 ,  H01S5/06804 ,  H01S5/06808 ,  H01S5/0683 ,  H01S5/0687 ,  H01S5/4087

Abstract: There is provided a wavelength variable light source system capable of changing wavelength and intensity of output signal light and of improving preset accuracy and stability of the wavelength and strength of the output signal light. The system determines the both or either one of a target value for controlling wavelength and a target value for controlling intensity of output signal light of a wavelength variable light source by correlating a combination of the target wavelength and the target light output intensity specified from a higher-level device and controls operation states of the wavelength variable light source so that output values of monitoring circuit s for monitoring the operation state of the wavelength variable light source converge to the target values.

Abstract translation: 提供了能够改变输出信号光的波长和强度并提高输出信号光的波长和强度的预设精度和稳定性的波长可变光源系统。 该系统通过将目标波长和从较高的目标波长指定的目标光输出强度的组合相关联来确定用于控制波长的目标值中的任一个或用于控制波长可变光源的输出信号光的强度的目标值 并且控制波长可变光源的操作状态，使得用于监视波长可变光源的操作状态的监视电路的输出值收敛到目标值。

公开(公告)号：US06728447B2

公开(公告)日：2004-04-27

申请号：US10117131

申请日：2002-04-08

Applicant: Hiroyuki Koshi ,  Kazuhisa Kashihara

Inventor： Hiroyuki Koshi ,  Kazuhisa Kashihara

IPC: G02B626

CPC classification number: G02B6/29355 ,  G02B6/2938 ,  G02B2006/1204 ,  G02B2006/12061 ,  G02B2006/121 ,  G02B2006/12159 ,  G02B2006/12164 ,  G02B2006/12183

Abstract: An optical multiplexer/demultiplexer includes first and second directional coupling portions in which first and second optical waveguides are provided to transfer a light between the first and second optical waveguides. Lengths of the first and second optical waveguides have a difference (&Dgr;L). A product between the difference (&Dgr;L) and a refractive index (n) of the first and second optical waveguides approximates a product between a cross-propagation wavelength (&lgr;2) and a value (N′) substantially equal to an integer (N), and a product between a through-propagation wavelength (&lgr;1) and the value (N′)±0.5. Power coupling ratio differences are at least approximately 1% and at most approximately 10%. Third power coupling ratios with respect to an average wavelength of the cross-propagation wavelength (&lgr;2) and the through-propagation wavelength (&lgr;1) are at least approximately 45% and at most approximately 55%.

Abstract translation: 光复用器/解复用器包括第一和第二定向耦合部分，其中提供第一和第二光波导以在第一和第二光波导之间传送光。 第一和第二光波导的长度具有差（DeltaL）。 第一和第二光波导的差（ΔL）和折射率（n）之间的乘积近似于交叉传播波长（λ2）和基本上等于整数（N）的值（N'）之间的乘积， 和通过传播波长（λ1）和值（N'）±0.5之间的乘积。 功率耦合比差异至少约为1％，最多约为10％。 相对于交叉传播波长（λ2）和通过传播波长（λ1）的平均波长的第三功率耦合比率至少为约45％且至多约55％。

公开(公告)号：US06539158B2

公开(公告)日：2003-03-25

申请号：US09778814

申请日：2001-02-08

Applicant: Kazuhisa Kashihara ,  Kazutaka Nara ,  Hiroyuki Koshi ,  Takeshi Nakajima

Inventor： Kazuhisa Kashihara ,  Kazutaka Nara ,  Hiroyuki Koshi ,  Takeshi Nakajima

IPC: G02B610

CPC classification number: G02B6/12023 ,  G02B6/105 ,  G02B6/1203 ,  G02B6/132

Abstract: An optical waveguide circuit capable of controlling polarization crosstalk is provided. An under cladding is formed on a silicon substrate (11). A core is formed on the under cladding and has a waveguide structure in which one or more optical input waveguides (12) arranged side by side are connected at their exit ends with a first slab guide (13), which is connected at its exit end with an arrayed waveguide (14) composed of plural channel waveguides (14a) that are different in length with the difference preset, and the arrayed waveguide (14) is connected at its exit end with a second slab waveguide (15), which is connected at its exit end with a plurality of optical output waveguides (16). The top of the core is covered with an over cladding to form an optical waveguide portion (10) composed of the under and over claddings and the core. A plurality of light beams having different wavelengths are entered to the core in the multiplexed manner, and the entered light beams are outputted separately on the basis of the wavelength. The claddings and the core are formed from silica glass. The birefringence B in the optical waveguide portion (10) is set so as to satisfy |B|≧1.2×10−4 to reduce polarization crosstalk to −20 dB or less.

Abstract translation: 提供了能够控制偏振串扰的光波导电路。 在硅衬底（11）上形成下包层。 在下包层上形成有芯，并且具有波导结构，其中并排布置的一个或多个光输入波导（12）在其出口端处连接有第一板引导件（13），其在其出口端连接 具有由多个不同长度与差异预定的多个通道波导（14a）组成的阵列波导（14），并且阵列波导（14）的出口端与第二平板波导（15）连接，第二平板波导（15）被连接 在其出口端具有多个光输出波导（16）。 芯的顶部覆盖有外包层，以形成由下包层和芯层组成的光波导部分（10）。 具有不同波长的多个光束以复用方式输入到核心，并且基于波长分离地输入输入的光束。 包层和芯由石英玻璃形成。 光波导部分（10）中的双折射B被设定为满足| B |> = 1.2×10 -4，以将极化串扰降低到-20dB或更小。

公开(公告)号：US06195481B1

公开(公告)日：2001-02-27

申请号：US09509832

申请日：2000-04-21

Applicant: Takeshi Nakajima ,  Hiroyuki Koshi ,  Naoki Hashizume

Inventor： Takeshi Nakajima ,  Hiroyuki Koshi ,  Naoki Hashizume

IPC: G02B636

CPC classification number: G02B6/12016 ,  G02B6/125 ,  G02B2006/1215

Abstract: An arrayed waveguide grating type optical multiplexer/demultiplexer includes input waveguides, an input-side slab waveguide, an arrayed waveguide diffraction grating, an output-side slab waveguide, and output waveguides. A junction between each input waveguide and the input-side slab waveguide is tapered such that the end portion of the input waveguide gradually widens in the width direction of the path toward the input-side slab waveguide, and includes two separate small-width waveguide portions arranged separately from the end portion of the input waveguide and extending in a line with taper of the tapered end portion, and a single large-width waveguide portion arranged separately from the small-width waveguide portions.

Abstract translation: 阵列波导光栅类型的光信号多路复用器/解复用器包括输入波导，输入侧平板波导，阵列波导衍射光栅，输出侧平板波导和输出波导。 每个输入波导和输入侧平板波导之间的结点是锥形的，使得输入波导的端部在朝向输入侧平板波导的路径的宽度方向上逐渐变宽，并且包括两个单独的小宽度波导部分 与输入波导的端部分开设置，并且以锥形端部的锥形成一条直线延伸，以及与小宽度波导部分分开配置的单个大宽度波导部。

公开(公告)号：US5112646A

公开(公告)日：1992-05-12

申请号：US658441

申请日：1991-01-28

Applicant: Hiroyuki Koshi ,  Minoru Owada

Inventor： Hiroyuki Koshi ,  Minoru Owada

IPC: G01N21/76

CPC classification number: G01N21/763 ,  Y10T436/117497

Abstract: An apparatus for bioluminescence measurement, which measures a substance in vivo on the basis of bioluminescence, is provided with a device for supplying a reagent or buffer solution kept at a constant temperature in a thermostat tank to a container for culturing cells, so that the temperature of the container can be kept constant and the reagent or buffer solution in the container can be stirred.

Abstract translation: 本发明提供了一种生物发光测定装置，其以生物发光为基础测定体内物质的装置，在恒温箱内将恒温恒温的试剂或缓冲溶液供给培养细胞的容器，使温度 容器中的试剂或缓冲溶液可以被搅拌。

公开(公告)号：US4798463A

公开(公告)日：1989-01-17

申请号：US77174

申请日：1987-07-24

Applicant: Hiroyuki Koshi

Inventor： Hiroyuki Koshi

IPC: G01J3/443 ,  G01J3/44 ,  G01N21/64 ,  G01N21/65

CPC classification number: G01J3/4406

Abstract: This invention is for obtaining ratios of Raman spectrum by using a referential sample representing at least two of Raman spectral lines, and for correcting fluorescence intensities of the sample to measured on the basis of the obtained ratios of Raman spectrum.

Abstract translation: 本发明是为了通过使用表示拉曼光谱线的至少两个的参考样品获得拉曼光谱的比例，并且用于基于所获得的拉曼光谱的比例来校正样品的荧光强度。