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1. 发明申请

US20120328238A1 OPTICAL DEVICE 有权
标题翻译：光学装置
公开(公告)号：US20120328238A1
公开(公告)日：2012-12-27
申请号：US13523472
申请日：2012-06-14
申请人： Akira INOUE , Kenichiro Takahashi , Tomohiko Kanie , Michiko Harumoto
发明人： Akira INOUE , Kenichiro Takahashi , Tomohiko Kanie , Michiko Harumoto
IPC分类号： G02B6/26 , G02B6/35 , G02B6/32
CPC分类号： G02B27/0955 , G02B6/29311 , G02B6/32 , G02B6/3512 , G02B6/356
摘要： An optical device which reduces coupling loss while improving practicality is provided. A multi-core fiber coupling device is an optical device which couples a multi-core fiber to single core fibers, and includes a first optical system which is located on optical axes of a plurality of beams emitted from the multi-core fiber, and which makes the optical axes of the respective beams non-parallel to each other, thereby making the beams in a state of being separated from each other, and a second optical system S2 which makes the optical axes of the plurality of beams in a state of being non-parallel to each other on the side of the first optical system, in a state of being approximately parallel to each other.
摘要翻译：提供了一种降低耦合损耗同时提高实用性的光学装置。多芯光纤耦合装置是将多芯光纤耦合到单芯光纤的光学装置，并且包括位于从多芯光纤发射的多个光束的光轴上的第一光学系统，以及哪个使各个光束的光轴彼此不平行，从而使光束处于彼此分离的状态;以及第二光学系统S2，其使得多个光束的光轴处于在第一光学系统的侧面上彼此不平行，处于大致彼此平行的状态。

2. 发明授权

US09182601B2 Optical device 有权
标题翻译：光学装置
公开(公告)号：US09182601B2
公开(公告)日：2015-11-10
申请号：US13523472
申请日：2012-06-14
申请人： Akira Inoue , Kenichiro Takahashi , Tomohiko Kanie , Michiko Harumoto
发明人： Akira Inoue , Kenichiro Takahashi , Tomohiko Kanie , Michiko Harumoto
IPC分类号： G02B6/26 , G02B27/09 , G02B6/32 , G02B6/35 , G02B6/293
CPC分类号： G02B27/0955 , G02B6/29311 , G02B6/32 , G02B6/3512 , G02B6/356
摘要： An optical device which reduces coupling loss while improving practicality is provided. A multi-core fiber coupling device is an optical device which couples a multi-core fiber to single core fibers, and includes a first optical system which is located on optical axes of a plurality of beams emitted from the multi-core fiber, and which makes the optical axes of the respective beams non-parallel to each other, thereby making the beams in a state of being separated from each other, and a second optical system S2 which makes the optical axes of the plurality of beams in a state of being non-parallel to each other on the side of the first optical system, in a state of being approximately parallel to each other.
摘要翻译：提供了一种降低耦合损耗同时提高实用性的光学装置。多芯光纤耦合装置是将多芯光纤耦合到单芯光纤的光学装置，并且包括位于从多芯光纤发射的多个光束的光轴上的第一光学系统，以及哪个使各个光束的光轴彼此不平行，从而使光束处于彼此分离的状态;以及第二光学系统S2，其使得多个光束的光轴处于在第一光学系统的侧面上彼此不平行，处于大致彼此平行的状态。

3. 发明授权

US06504962B2 Method for determining an aging condition for an optical waveguide grating and temperature sensor 失效
标题翻译：用于确定光波导光栅和温度传感器的老化条件的方法
公开(公告)号：US06504962B2
公开(公告)日：2003-01-07
申请号：US09909897
申请日：2001-07-23
申请人： Shinji Ishikawa , Toru Iwashima , Michiko Harumoto , Akira Inoue , Masakazu Shigehara
发明人： Shinji Ishikawa , Toru Iwashima , Michiko Harumoto , Akira Inoue , Masakazu Shigehara
IPC分类号： G02B634
CPC分类号： G02B6/02185
摘要： The present invention provides a method for determining a condition of aging for an optical waveguide grating. In this method, the aged deterioration,curve of the optical waveguide grating is set as a forms of C·t−&agr;, t represents time, and &agr; and C represent parameters. Then, the condition of the aging is determined based on the aged deterioration curve.
摘要翻译：本发明提供了一种用于确定光波导光栅的老化状况的方法。在这种方法中，光波导光栅的老化变形曲线被设置为C.t-α，t表示时间的形式，α和C表示参数。然后，根据老化退化曲线确定老化条件。

4. 发明授权

US06137931A Method for determining a condition of aging for optical fiber grating 失效
标题翻译：确定光纤光栅老化状态的方法
公开(公告)号：US06137931A
公开(公告)日：2000-10-24
申请号：US70799
申请日：1998-05-01
申请人： Shinji Ishikawa , Toru Iwashima , Michiko Harumoto , Akira Inoue
发明人： Shinji Ishikawa , Toru Iwashima , Michiko Harumoto , Akira Inoue
IPC分类号： G02B6/34
CPC分类号： G02B6/02185
摘要： The present invention provides a method for determining a condition of aging for an optical fiber grating. This method comprises a step of setting the aged deterioration curve of the optical fiber grating as a form proportional to t.sup.-n, where t represents time, and n represents a parameter dependent on temperature; and a step of determining the condition of the aging according to the aged deterioration curve.
摘要翻译：本发明提供一种用于确定光纤光栅老化状况的方法。该方法包括将光纤光栅的老化劣化曲线设置为与t-n成比例的形式，其中t表示时间，n表示取决于温度的参数的步骤; 以及根据老化劣化曲线确定老化条件的步骤。

5. 发明授权

US06580854B1 Optical waveguide grating and method of making the same 失效
标题翻译：光波导光栅及其制作方法
公开(公告)号：US06580854B1
公开(公告)日：2003-06-17
申请号：US09615955
申请日：2000-07-13
申请人： Tadashi Enomoto , Shinji Ishikawa , Masakazu Shigehara , Michiko Harumoto
发明人： Tadashi Enomoto , Shinji Ishikawa , Masakazu Shigehara , Michiko Harumoto
IPC分类号： G02B634
CPC分类号： G02B6/0219 , G02B6/02095 , G02B6/02142 , G02B6/02147
摘要： In an optical waveguide grating in an optical fiber having a cladding region around a core region, a periodic refractive index distribution is existed in a predetermined area of the core region along the optical axis. The core region has a composition of GeO2—P2O5—SiO2 based glass, for example, whereas the cladding region is made of SiO2, and the co-doping ratio in the core region is adjusted, so as to lower the temperature dependence of characteristics. The doping amount of P2O5 in the core region is preferably {fraction (1/15)} to 1 times, more preferably 0.6 to 1 times that of GeO2.
摘要翻译：在具有围绕芯区域的包层区域的光纤中的光波导光栅中，周期性折射率分布存在于沿着光轴的芯区域的预定区域中。核心区域例如具有GeO 2 -P 2 O 5 -SiO 2基玻璃的组成，而包层区域由SiO 2制成，并且调整芯部区域中的共掺杂比，以降低特性的温度依赖性。核心区域中的P2O5的掺杂量优选为GeO 2的1/15〜1倍，更优选为0.6〜1倍。

6. 发明授权

US6072927A Optical filter 失效
标题翻译：滤光片
公开(公告)号：US6072927A
公开(公告)日：2000-06-06
申请号：US129623
申请日：1998-08-05
申请人： Toru Iwashima , Michiko Harumoto
发明人： Toru Iwashima , Michiko Harumoto
IPC分类号： G02B6/122 , G02B6/02 , G02B6/12 , G02B6/124 , G02B6/34
CPC分类号： G02B6/29317 , G02B6/02085 , G02B6/124 , G02B6/29389 , G02B2006/12107 , G02B2006/12109 , G02B2006/12164
摘要： In an optical filter formed with a grating whose refractive index fluctuates along an optical axis of an optical waveguide so as to reflect light in a predetermined wavelength band, assuming that a position in the grating area is defined by a positional coordinate value z which is standardized by -.pi. to .pi. in a light propagating direction, an amplitude .DELTA.n of refractive index changing width in z satisfies: ##EQU1## by use of predetermined parameters x.sub.1 and x.sub.2 and proportional constants k.sub.1 and k.sub.2, .DELTA.n monotonously increasing or decreasing depending on whether the expression -.pi..ltoreq.z.ltoreq.0 or 0.ltoreq.z.ltoreq..pi. is satisfied, respectively.
摘要翻译：在形成有折射率沿着光波导的光轴波动以便反射预定波长带的光的光栅的滤光器中，假设光栅区域中的位置由标准化的位置坐标值z 在光传播方向上，pi的折射率变化幅度的DELTA n满足：通过使用预定参数x1和x2以及比例常数k1和k2，DELTA n单调递增或减小，这取决于表达式分别满足pi = z

7. 发明授权

US06021242A Diffraction grating type band-pass filter and method of making the same 失效
$Diffraction grating type band-pass filter and method of making the same$
标题翻译：衍射光栅型带通滤波器及其制作方法
公开(公告)号：US06021242A
公开(公告)日：2000-02-01
申请号：US121184
申请日：1998-07-23
申请人： Michiko Harumoto , Toru Iwashima
发明人： Michiko Harumoto , Toru Iwashima
IPC分类号： G02B6/00 , G02B5/18 , G02B5/20 , G02B6/02 , G02B6/34
CPC分类号： G02B6/02085 , G02B6/29389
摘要： A band-pass filter formed in an optical waveguide, provided with a diffraction grating group having a period .LAMBDA. of refractive index fluctuation changing in an axial direction with substantially a constant changing width .DELTA.n, comprises two periodic refractive index variable areas having periodes .LAMBDA. different from each other; a zero area, disposed therebetween, having substantially a constant refractive index; and boundary areas, disposed between the zero area and the respective periodic refractive index variable areas, in which the changing width of refractive index monotonously changes between 0 and .DELTA.n.
摘要翻译：在光波导中形成的具有折射率波动的周期LAMBDA在轴向上以基本上恒定的变化宽度DELTA n变化的衍射光栅组的带通滤波器包括两个具有周期LAMBDA不同的周期性折射率可变区域从彼此; 零区域，设置在它们之间，具有基本上具有恒定的折射率; 以及设置在零区域和相应周期性折射率可变区域之间的边界区域，其中折射率的变化宽度在0和DELTA n之间单调变化。

8. 发明授权

US06563984B1 Long-period grating device 有权
标题翻译：长周期光栅装置
公开(公告)号：US06563984B1
公开(公告)日：2003-05-13
申请号：US09504898
申请日：2000-02-16
申请人： Michiko Harumoto , Masakazu Shigehara , Shinji Ishikawa , Tadashi Enomoto
发明人： Michiko Harumoto , Masakazu Shigehara , Shinji Ishikawa , Tadashi Enomoto
IPC分类号： G02B626
CPC分类号： G02B6/02095
摘要： The present invention relates to a long-period grating device which eliminates only a desirable wavelength of core-mode light in a wavelength band in use from 1525 nm to 1610 nm. The long-period grating device according to the present invention comprises an optical fiber provided with a core region and a cladding region, whereas a long-period grating whose refractive index changes with a period &Lgr; in the advancing direction of light is provided in the core region, wherein the period &Lgr; is set such that the absolute value of a loss peak due to mode coupling concerning a refractive index modulation component with a period &Lgr;/(2n+1) (n=1, 2, 3, 4) is 0.2 dB or less in the wavelength band in use.
摘要翻译：本发明涉及一种长周期光栅器件，其仅消除了使用中的1525nm至1610nm的波长范围内的核心光的理想波长。根据本发明的长周期光栅装置包括设置有芯区域和包层区域的光纤，而在光的前进方向上折射率随周期LAMBD变化的长周期光栅设置在芯区域，其中周期LAMBD被设置为使得由于与周期LAMBD /（2n + 1）（n = 1,2,3,4）的折射率调制分量的模式耦合的损耗峰值的绝对值为0.2 dB或更小的波长带。

9. 发明授权

US06253008B1 Optical filter and method of making the same 失效
标题翻译：滤光片及其制作方法
公开(公告)号：US06253008B1
公开(公告)日：2001-06-26
申请号：US09328508
申请日：1999-06-09
申请人： Michiko Harumoto , Masakazu Shigehara
发明人： Michiko Harumoto , Masakazu Shigehara
IPC分类号： G02B634
CPC分类号： G02B6/02095 , G02B6/02142
摘要： The present invention relates to an optical filter having a long-period grating which couples, in signal light propagating through a core region, core mode light having a predetermined wavelength to cladding mode light, thereby attenuating the core mode light; and a method of making the same. In particular, in the filter area provided with the long-period grating, the intervals of individual parts exhibiting its average refractive index is constant along the advancing direction of the signal light, whereas values of maximum points and minimum points of a refractive index modulation function defining the refractive index vary along the advancing direction of the signal light.
摘要翻译：本发明涉及一种具有长周期光栅的光学滤波器，其在信号光中通过芯区传播具有预定波长的核心模式的光与包层模式光，从而衰减芯模光; 以及制作相同的方法。特别地，在设置有长周期光栅的滤光区域中，显示其平均折射率的各个部分的间隔沿着信号光的前进方向是恒定的，而折射率调制函数的最大点和最小点的值限定折射率沿信号光的前进方向变化。

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