专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06900940B2 Optical apparatus and device 失效
标题翻译：光学仪器和设备
公开(公告)号：US06900940B2
公开(公告)日：2005-05-31
申请号：US10164438
申请日：2002-06-10
申请人： Nobuaki Mitamura , Hirotomo Izumi , Yuichi Kawahata
发明人： Nobuaki Mitamura , Hirotomo Izumi , Yuichi Kawahata
IPC分类号： G02B5/28 , G02B6/293 , G02B6/34 , G02B27/00 , G02B1/10
CPC分类号： G02B6/29358 , G02B6/29394
摘要： A VIPA plate having a configuration where a translucent reflection film and a total reflection film are respectively arranged on one side and the other side of a transparent parallel plate can be used as a wavelength dispersion compensator by using a special mirror and a lens. However, the transparency characteristic of the wavelength dispersion compensator using such a VIPA plate is a periodical characteristic which is asymmetric with a central wavelength in a wavelength regime. Accordingly, not parallel light but converged or diverged light having angular dispersion is input to an etalon plate, so that a filter whose transparency characteristic is an asymmetric periodical characteristic which is reverse to the VIPA plate is configured for the central wavelength in the wavelength regime. With this filter, the transparency characteristic of the wavelength dispersion compensator using the VIPA plate is optimized.
摘要翻译：具有透明平行板的一侧和另一侧分别布置半透明反射膜和全反射膜的结构的VIPA板可以通过使用特殊镜和透镜用作波长色散补偿器。然而，使用这种VIPA板的波长色散补偿器的透明度特性是与波长范围中的中心波长不对称的周期特性。因此，不是平行光，而是具有角度色散的会聚或发散的光被输入到标准具板，使得其透明度特性是与VIPA板相反的不对称周期特性的滤光器被配置为波长范围中的中心波长。利用该滤光片，优化使用VIPA板的波长色散补偿器的透明度特性。

2. 发明申请

US20050046837A1 Spectroscopic apparatus 失效
标题翻译：光谱仪
公开(公告)号：US20050046837A1
公开(公告)日：2005-03-03
申请号：US10792747
申请日：2004-03-05
申请人： Hirotomo Izumi , Hiroshi Nagaeda , Nobuaki Mitamura
发明人： Hirotomo Izumi , Hiroshi Nagaeda , Nobuaki Mitamura
IPC分类号： G01J3/12 , G01J3/18 , G01J3/26 , G01J3/28 , G02B6/34 , G02B26/00 , G02B27/00 , G02B27/14 , G02F1/01 , G02F1/03
CPC分类号： G02B6/4246 , G01J3/0208 , G01J3/0286 , G01J3/18 , G01J3/26 , G01J3/2803 , G01J2003/1247 , G02B6/29311 , G02B6/29358 , G02B6/29373 , G02B6/29395 , G02B27/0087 , G02B27/1086 , G02B27/144 , G02F1/0147 , G02F1/03 , G02F2201/17 , G02F2203/055
摘要： A spectroscopic apparatus which is compact in size and performs high-precision light-splitting with a large angular dispersion. An optical input-processing section outputs a filtered transmitted light, using a bandpass filter that transmits only wavelength bands at one period of an input light, and collects the filtered transmitted light to generate a collected beam. An optic includes a first reflection surface and a second reflection surface which are high but asymmetric in reflectivity, and causes the collected beam incident thereon to undergo multiple reflections within an inner region between the first reflection surface and the second reflection surface, to thereby cause split beams to be emitted via the second reflection surface. A received light-processing section performs received light processing of the beams emitted from the optic. A control section variably controls at least one of a filter characteristic of the bandpass filter and an optical length through the optic.
摘要翻译：一种尺寸紧凑并且具有大角度色散的高精度光分裂的分光装置。光输入处理部分使用在输入光的一个周期仅发送波长带的带通滤波器来输出经滤波的透射光，并且收集被滤波的透射光以产生收集的光束。光学元件包括反射率高但不对称的第一反射表面和第二反射表面，并且使入射到其上的收集的光束在第一反射表面和第二反射表面之间的内部区域内经历多次反射，从而导致分裂经由第二反射面发射的光束。接收到的光处理部分执行从光学元件发射的光束的接收光处理。控制部分可变地控制带通滤波器的滤波器特性和通过光学器件的光学长度中的至少一个。

3. 发明授权

US07304798B2 Spectroscopic apparatus 失效
标题翻译：光谱仪
公开(公告)号：US07304798B2
公开(公告)日：2007-12-04
申请号：US10792747
申请日：2004-03-05
申请人： Hirotomo Izumi , Hiroshi Nagaeda , Nobuaki Mitamura
发明人： Hirotomo Izumi , Hiroshi Nagaeda , Nobuaki Mitamura
IPC分类号： G01B9/02 , G02B27/00
CPC分类号： G02B6/4246 , G01J3/0208 , G01J3/0286 , G01J3/18 , G01J3/26 , G01J3/2803 , G01J2003/1247 , G02B6/29311 , G02B6/29358 , G02B6/29373 , G02B6/29395 , G02B27/0087 , G02B27/1086 , G02B27/144 , G02F1/0147 , G02F1/03 , G02F2201/17 , G02F2203/055
摘要： A spectroscopic apparatus which is compact in size and performs high-precision light-splitting with a large angular dispersion. An optical input-processing section outputs a filtered transmitted light, using a bandpass filter that transmits only wavelength bands at one period of an input light, and collects the filtered transmitted light to generate a collected beam. An optic includes a first reflection surface and a second reflection surface which are high but asymmetric in reflectivity, and causes the collected beam incident thereon to undergo multiple reflections within an inner region between the first reflection surface and the second reflection surface, to thereby cause split beams to be emitted via the second reflection surface. A received light-processing section performs received light processing of the beams emitted from the optic. A control section variably controls at least one of a filter characteristic of the bandpass filter and an optical length through the optic.
摘要翻译：一种尺寸紧凑并且具有大角度色散的高精度光分裂的分光装置。光输入处理部分使用在输入光的一个周期仅发送波长带的带通滤波器来输出经滤波的透射光，并且收集被滤波的透射光以产生收集的光束。光学元件包括反射率高但不对称的第一反射表面和第二反射表面，并且使入射到其上的收集的光束在第一反射表面和第二反射表面之间的内部区域内经历多次反射，从而导致分裂经由第二反射面发射的光束。接收到的光处理部分执行从光学元件发射的光束的接收光处理。控制部分可变地控制带通滤波器的滤波器特性和通过光学器件的光学长度中的至少一个。

4. 发明申请

US20050094272A1 Wavelength characteristic variable filter, optical amplifier, and optical communications apparatus 审中-公开
标题翻译：波长特性可变滤波器，光放大器和光通信装置
公开(公告)号：US20050094272A1
公开(公告)日：2005-05-05
申请号：US10821857
申请日：2004-04-12
申请人： Norihisa Naganuma , Nobuaki Mitamura , Shinji Maruyama , Hiroshi Nagaeda , Hirotomo Izumi
发明人： Norihisa Naganuma , Nobuaki Mitamura , Shinji Maruyama , Hiroshi Nagaeda , Hirotomo Izumi
IPC分类号： G02B26/00 , G02B5/18 , G02B5/28 , G02B6/34 , H04J14/02
CPC分类号： G02B6/29358 , G02B6/2937 , G02B6/29395 , H04B10/25073 , H04J14/02
摘要： Light emitted from an optical fiber is collimated by a collimating lens. An optical filter with a slit is placed in the path of the collimated light. The slit can be moved along a direction perpendicular to the path of the collimated light. When the slit is on the center of the collimated beam, because the intensity of light is high at the center, the diffraction loss of the light is high. When the slit is on the edge, because the light intensity is low at the edge, the diffraction loss is low. The diffraction loss has a wavelength characteristic and can be controlled by adjusting the position of the slit in the collimated beam.
摘要翻译：由光纤发射的光被准直透镜准直。具有狭缝的滤光器被放置在准直光的路径中。狭缝可以沿着与准直光的路径垂直的方向移动。当狭缝位于准直光束的中心时，由于光的中心强度高，所以光的衍射损耗高。当狭缝在边缘上时，由于边缘处的光强度低，所以衍射损耗低。衍射损耗具有波长特性，并且可以通过调整准直光束中的狭缝的位置来控制。

5. 发明授权

US07016096B2 Transmission wavelength characteristics variable optical element, and wavelength characteristics variable apparatus, optical amplifier, and optical transmission system, using same 失效
公开(公告)号：US07016096B2
公开(公告)日：2006-03-21
申请号：US10351376
申请日：2003-01-27
申请人： Hirotomo Izumi , Takashi Ishiwada , Nobuaki Mitamura
发明人： Hirotomo Izumi , Takashi Ishiwada , Nobuaki Mitamura
IPC分类号： G02F1/09 , G03B21/56 , H04B10/12
CPC分类号： G02F1/09 , G02B26/00 , G02F1/21 , G02F2001/213 , G02F2203/05 , H01S3/06754 , H01S3/1003 , H01S3/1062 , H01S3/1301 , H01S2301/04
摘要： An object of the invention is to easily realize an optical element using an etalon type structure, capable of changing a periodic transmission wavelength characteristic in an axial direction of transmissivity, and also capable of changing a periodic characteristic with respect to wavelength. To this end, a transmission wavelength characteristics variable optical element according to the invention comprises: a light interference section including a pair of wedge shape magneto-optic crystals arranged with taper faces thereof in close contact, that can change a distance between reflecting films formed on parallel planes of the magneto-optic crystals, by relatively moving the magneto-optic crystals by movable sections, permanent magnets for applying a fixed magnet field to the pair of magneto-optic crystals, an electromagnet for applying a variable magnetic field in a direction different to the fixed magnetic field, and a variable current source controlling the current flowing into the electromagnet.

6. 发明授权

US06862126B2 TRANSMISSION WAVELENGTH CHARACTERISTICS VARIABLE OPTICAL ELEMENT, AND WAVELENGTH CHARACTERISTICS VARIABLE APPARATUS, OPTICAL AMPLIFIER, OPTICAL TRANSMISSION SYSTEM, AND CONTROL METHOD OF TRANSMISSION WAVELENGTH CHARACTERISTICS, USING SAME 失效
标题翻译：传输波长特性可变光学元件和波长特性可变设备，光放大器，光传输系统和传输波长特性的控制方法，使用相同
公开(公告)号：US06862126B2
公开(公告)日：2005-03-01
申请号：US10286779
申请日：2002-11-04
申请人： Takashi Ishiwada , Hirotomo Izumi , Hiroshi Nagaeda , Nobuaki Mitamura
发明人： Takashi Ishiwada , Hirotomo Izumi , Hiroshi Nagaeda , Nobuaki Mitamura
IPC分类号： G02B5/28 , G02B5/30 , G02B6/26 , G02B6/34 , G02B26/00 , G02B27/28 , G02F1/09 , G02F1/21 , H01S3/10 , H04B10/07 , H04B10/2507 , H04B10/2569 , H04B10/29 , H04B10/294 , G01B9/02 , G02F1/07
CPC分类号： G02B6/2746 , G02B6/272 , G02B6/2766 , G02B6/29358 , G02B6/29395 , G02B26/001 , G02B27/283 , G02F1/093 , G02F2001/213 , G02F2201/16 , G02F2203/05 , G02F2203/06
摘要： The present invention aims at providing a transmission wavelength characteristics variable optical element which can actively equalize changes of the wavelength characteristics due to temperature changes, and providing a wavelength characteristics variable apparatus, an optical amplifier, an optical transmission system, and a control method of the transmission wavelength characteristics, which use such an optical element. To this end, the transmission wavelength characteristics variable optical element according to the present invention comprises: an light interference section in which for example reflection films are formed on a light incident plane and a light emitting plane of a magneto-optic crystal; a permanent magnet that applies a fixed magnetic field to the magneto-optic crystal; an electromagnet that applies a variable magnetic field in a direction different from that of the fixed magnetic field; and a variable current source that controls the current flowing in the electromagnet, and varies transmission wavelength characteristics which occur due to an interference of light multireflected between the reflection films, by changing a Faraday rotation angle given to the light being propagated within the magneto-optic crystal, corresponding to a synthetic magnetic field formed by the fixed magnetic field and the variable magnetic field.
摘要翻译：本发明的目的在于提供一种传输波长特性可变光学元件，其可以主动地均衡由于温度变化引起的波长特性的变化，并且提供波长特性可变设备，光放大器，光传输系统和控制方法透射波长特性，其使用这种光学元件。为此，根据本发明的透射波长特性可变光学元件包括：光干涉部，其例如在光入射面上形成反射膜和磁光晶体的发光面; 将固定磁场施加到磁光晶体的永磁体; 电磁体，其在与固定磁场的方向不同的方向上施加可变磁场; 以及可变电流源，其控制在电磁体中流动的电流，并且通过改变给予在磁光内传播的光的法拉第旋转角度，改变由于反射膜之间多次反射的光的干涉而发生的透射波长特性晶体，对应于由固定磁场和可变磁场形成的合成磁场。

7. 发明授权

US07200297B2 Device using a virtually-imaged phased array (VIPA) with an improved transmission wave characteristic of output light 失效
标题翻译：使用具有改进的输出光的透射波特性的虚拟成像的相控阵列（VIPA）的装置
公开(公告)号：US07200297B2
公开(公告)日：2007-04-03
申请号：US10278868
申请日：2002-10-24
申请人： Yasuhiro Yamauchi , Yuichi Kawahata , Nobuaki Mitamura , Hirohiko Sonoda
发明人： Yasuhiro Yamauchi , Yuichi Kawahata , Nobuaki Mitamura , Hirohiko Sonoda
IPC分类号： G02B6/26 , G02B27/00
CPC分类号： G02B6/29358 , G02B6/2937
摘要： A dispersion compensator comprising a VIPA is configured so as to reflect light with each wavelength at an angle varying depending on wavelength when the light is reflected off a mirror. When being coupled at the end of an input fiber, the light with each wavelength is coupled at a specific angle. If the light is coupled with the fiber at a specific angle, coupling efficiency degrades. Therefore, in this case, coupling loss increases. Light having a wavelength with high transmittance in the VIPA is coupled with the fiber at a large angle, while light with a low transmittance is efficiently coupled with the fiber at a small angle or no angle. In this way, the round-top wavelength characteristic of the VIPA can be leveled.
摘要翻译：包括VIPA的色散补偿器被配置为当光从反射镜反射时以每个波长的光以与波长有关的角度变化。当在输入光纤的端部耦合时，每个波长的光以特定角度耦合。如果光以特定角度与光纤耦合，则耦合效率降低。因此，在这种情况下，耦合损耗增加。在VIPA中具有高透射率的光以大角度与光纤耦合，而具有低透射率的光以小角度或无角度与光纤有效耦合。以这种方式，VIPA的圆顶波长特性可以被平整。

8. 发明授权

US06909537B2 Dispersion compensator whose transmission band is flattened 失效
标题翻译：色散补偿器，其传输带平展
公开(公告)号：US06909537B2
公开(公告)日：2005-06-21
申请号：US10340842
申请日：2003-01-13
申请人： Yuichi Kawahata , Nobuaki Mitamura
发明人： Yuichi Kawahata , Nobuaki Mitamura
IPC分类号： G02B5/28 , G02B5/22 , G02B6/34 , H01S3/00
CPC分类号： G02B6/29358 , G02B6/29394
摘要： Light input from a single-mode fiber is collected into linear light beams by a line focuser, and collected on a VIPA element. A light beam output from the VIPA element is made to pass through a space filter having a predetermined transmission loss characteristic, and focused on a mirror with a focusing lens. The light is reflected by the mirror, again passes through the space filter via the focusing lens, enters the VIPA element, and again enters the single-mode fiber via the line focuser. The insertion loss wavelength characteristic of the wavelength dispersion compensator using the VIPA element is optimized by being superimposed on the transmission loss characteristic of the space filter.
摘要翻译：来自单模光纤的光输入由线聚焦器收集到线性光束中，并收集在VIPA元件上。使从VIPA元件输出的光束通过具有预定的传输损耗特性的空间滤波器，并且聚焦在具有聚焦透镜的反射镜上。光被镜子反射，再次通过聚焦透镜通过空间滤光片，进入VIPA元件，并再次通过线型聚焦器进入单模光纤。使用VIPA元件的波长色散补偿器的插入损耗波长特性通过叠加在空间滤波器的传输损耗特性上被优化。

9. 发明授权

US06894851B2 Optical device 失效
标题翻译：光学装置
公开(公告)号：US06894851B2
公开(公告)日：2005-05-17
申请号：US10669335
申请日：2003-09-25
申请人： Yujin Yamazaki , Yuichi Kawahata , Nobuaki Mitamura , Hirohiko Sonoda
发明人： Yujin Yamazaki , Yuichi Kawahata , Nobuaki Mitamura , Hirohiko Sonoda
IPC分类号： G02B7/02 , G02B6/34
CPC分类号： G02B6/29358 , G02B6/29398
摘要： A cabinet provided with light input/output holes accommodates a VIPA optical element, a lens, a fixing material fixing the VIPA optical element. A temperature-controlled heater controls the temperature of and inside the cabinet. Both the light input and output holes of the cabinet are blocked by the fixing material and the lens, respectively, so that temperature inside the cabinet is not influenced by the outside air.
摘要翻译：具有光输入/输出孔的机柜容纳VIPA光学元件，透镜，固定VIPA光学元件的固定材料。温控加热器控制机柜内部和室内的温度。机柜的光输入和输出孔分别由固定材料和透镜阻挡，使机柜内的温度不受外界空气的影响。

10. 发明授权

US06646805B2 Apparatus for variable wavelength dispersion and wavelength dispersion slope 失效
公开(公告)号：US06646805B2
公开(公告)日：2003-11-11
申请号：US09939566
申请日：2001-08-28
申请人： Nobuaki Mitamura , Yuichi Kawahata
发明人： Nobuaki Mitamura , Yuichi Kawahata
IPC分类号： G02B2700
CPC分类号： G02B6/2931 , G02B6/2713 , G02B6/2793 , G02B6/29311 , G02B6/29358 , G02B6/29373 , G02B6/29394 , G02B6/29395 , G02B6/29398 , H04B10/25133
摘要： Rays of light having respective wavelengths angular-dispersed and output from a VIPA plate are collected by a lens, and diffracted by a grating pair which is an optical path shift generation unit and optical path shift amount variation unit, and have a shift in a path of rays having different wavelengths. When the rays are reflected by a dispersion leveling three-dimensional mirror and input into the VIPA plate again, they are received by portions having different dispersion compensation amount of the three-dimensional mirror, thereby realizing different amounts of wavelength dispersion for respective wavelengths, and independently adjusting an amount of wavelength dispersion of the entire wavelengths of the WDM rays and the wavelength dispersion slope.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式