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

US5024501A Manufacturing method for polarization maintaining optical fiber couplers 失效
标题翻译：用于偏振维持光纤耦合器的制造方法
公开(公告)号：US5024501A
公开(公告)日：1991-06-18
申请号：US506402
申请日：1990-04-09
申请人： Hiroyuki Taya , Mikio Yoshinuma , Takeshi Yamada , Kenji Nishide , Fumio Suzuki , Hirohisa Fujimoto , Ryozo Yamauchi
发明人： Hiroyuki Taya , Mikio Yoshinuma , Takeshi Yamada , Kenji Nishide , Fumio Suzuki , Hirohisa Fujimoto , Ryozo Yamauchi
IPC分类号： G02B6/28
CPC分类号： G02B6/2843
摘要： The present invention discloses a manufacturing method for polarization maintaining optical fiber couplers which are used for joining light signals and at optical fiber branch points. The disclosed manufacturing method employs polarization maintaining optical fibers, and describes a method for mutually aligning the stress applying parts of such optical fibers so that polarized optical signals are maintained in the polarized state when transiting such couplers.

2. 发明授权

US06459829B1 Multiple wavelength excitation optical multiplexing device, multiple wavelength excitation light source incorporating aforementioned device, and optical amplifier 有权
标题翻译：多波长激发光复用器件，包含上述器件的多波长激发光源和光放大器
公开(公告)号：US06459829B1
公开(公告)日：2002-10-01
申请号：US09497343
申请日：2000-02-03
申请人： Ryozo Yamauchi , Akira Wada , Kenji Nishide , Shigefumi Yamasaki
发明人： Ryozo Yamauchi , Akira Wada , Kenji Nishide , Shigefumi Yamasaki
IPC分类号： G02B628
CPC分类号： H04B10/506 , G02B6/02138 , G02B6/12011 , G02B6/12019 , H01S5/4062 , H01S5/4087 , H04J14/02
摘要： The present invention provides a multiple wavelength excitation light source characterized in the provision of an optical multiplexing element that has a plurality of input terminals connected to lasers and functions to multiplex a plurality of lights that have different characteristics; and a reflecting element inserted near the output side of the output terminal of the optical multiplexing element, and functioning to reflect the light multiplexed at the optical multiplexing element at a low reflection coefficient. Accordingly, it becomes possible to provide high output excitation light in a stable manner.
摘要翻译：本发明提供一种多波长激发光源，其特征在于提供一种光复用元件，其具有连接到激光器的多个输入端，并且具有多路复用具有不同特性的多个光; 以及反射元件，其插入在光复用元件的输出端的输出侧附近，并且以低反射系数反射在光复用元件处复用的光。因此，可以稳定地提供高输出激励光。

3. 发明授权

US06442313B2 Optical fiber grating and manufacturing method thereof 有权
标题翻译：光纤光栅及其制造方法
公开(公告)号：US06442313B2
公开(公告)日：2002-08-27
申请号：US09777085
申请日：2001-02-05
申请人： Ryozo Yamauchi , Akira Wada , Tetsuya Sakai , Nobuyuki Tanaka , Kensuke Shima , Kenji Nishide , Shigefumi Yamasaki
发明人： Ryozo Yamauchi , Akira Wada , Tetsuya Sakai , Nobuyuki Tanaka , Kensuke Shima , Kenji Nishide , Shigefumi Yamasaki
IPC分类号： G02B634
CPC分类号： G02B6/02147 , G02B6/02095
摘要： An optical fiber grating is manufactured by heating intermittently an optical fiber, provided with a core having residual stress in the longitudinal direction, softening a peripheral cladding of the core, and forming spatial periodical changes for the relative refractive index-difference between the core and the cladding, in the longitudinal direction of the aforementioned optical fiber by having the index of refraction of the core change, through the releasing of the aforementioned residual stress. As a result, an optical fiber grating and the manufacturing method thereof, which do not require expensive equipment and which exhibit high productivity, and furthermore a grating characteristic which is stable over time can be provided.
摘要翻译：光纤光栅通过间歇地加热设置有在纵向上具有残余应力的芯的光纤，软化芯的外围包层，并且形成芯与芯的相对折射率差的空间周期性变化通过释放上述残余应力，通过使芯的折射率变化，在上述光纤的长度方向上包覆。结果，可以提供不需要昂贵的设备并且表现出高生产率的光纤光栅及其制造方法，此外还可以提供一种随时间稳定的光栅特性。

4. 发明授权

US06463195B1 Method of manufacturing polarization-maintaining optical fiber coupler 有权
标题翻译：制造偏振保持光纤耦合器的方法
公开(公告)号：US06463195B1
公开(公告)日：2002-10-08
申请号：US09578271
申请日：2000-05-25
申请人： Hideki Sasaki , Ryozo Yamauchi , Hiroshi Hidaka , Kenji Nishide , Shigefumi Yamasaki , Ryokichi Matsumoto , Yoji Suzuki
发明人： Hideki Sasaki , Ryozo Yamauchi , Hiroshi Hidaka , Kenji Nishide , Shigefumi Yamasaki , Ryokichi Matsumoto , Yoji Suzuki
IPC分类号： G02B626
CPC分类号： G02B6/2835 , G02B6/2843
摘要： In a method of manufacturing a polarization-maintaining optical fiber coupler by heating lengthwise portions of two polarization-maintaining optical fibers extending side by side, and elongating the heated portions to thereby form a fused-elongated section, elongation is terminated when the cyclic changes in a coupling ratio of two polarized waves according to an elongation length at a wavelength in use are both within first two cycles, so that the coupling ratio of one of the polarized waves is equal to or less than 10% and the coupling ratio of the other one of the polarized waves is equal to or greater than 90%. This method can provide a polarization-maintaining optical fiber coupler whose coupling ratio has a large dependency on polarization with a short elongation length.
摘要翻译：在通过加热并排延伸的两个偏振波保持光纤的长度方向制造偏振波保持光纤耦合器的方法，并且延长加热部分从而形成熔融伸长部分，当循环变化根据使用波长的伸长长度的两个极化波的耦合比都在前两个周期内，使得一个偏振波的耦合比等于或小于10％，另一个的耦合比偏振波中的一个等于或大于90％。该方法可以提供一种偏振保持光纤耦合器，其耦合比对短延伸长度的极化具有很大的依赖性。

5. 发明授权

US06298183B1 Optical fiber grating and manufacturing method therefor 失效
标题翻译：光纤光栅及其制造方法
公开(公告)号：US06298183B1
公开(公告)日：2001-10-02
申请号：US09088630
申请日：1998-06-02
申请人： Ryozo Yamauchi , Akira Wada , Tetsuya Sakai , Nobuyuki Tanaka , Kensuke Shima , Kenji Nishide , Shigefumi Yamasaki
发明人： Ryozo Yamauchi , Akira Wada , Tetsuya Sakai , Nobuyuki Tanaka , Kensuke Shima , Kenji Nishide , Shigefumi Yamasaki
IPC分类号： G02B634
CPC分类号： G02B6/02147 , G02B6/02095
摘要： An optical fiber grating is manufactured by heating intermittently an optical fiber, provided with a core having residual stress in the longitudinal direction, softening a peripheral cladding of the core, and forming spatial periodical changes for the relative refractive index-difference between the core and the cladding, in the longitudinal direction of the aforementioned optical fiber by having the index of refraction of the core change, through the releasing of the aforementioned residual stress. As a result, an optical fiber grating and the manufacturing method thereof, which do not require expensive equipment and which exhibit high productivity, and furthermore a grating characteristic which is stable over time can be provided.
摘要翻译：光纤光栅通过间歇地加热设置有在纵向上具有残余应力的芯的光纤，软化芯的外围包层，并且形成芯与芯的相对折射率差的空间周期性变化通过释放上述残余应力，通过使芯的折射率变化，在上述光纤的长度方向上包覆。结果，可以提供不需要昂贵的设备并且表现出高生产率的光纤光栅及其制造方法，此外还可以提供一种随时间稳定的光栅特性。

6. 发明授权

US07050672B1 Polarization-maintaining optical fiber and polarization-maintaining optical fiber component 有权
标题翻译：偏振保持光纤和偏振保持光纤部件
公开(公告)号：US07050672B1
公开(公告)日：2006-05-23
申请号：US09638162
申请日：2000-08-14
申请人： Ryokichi Matsumoto , Hideki Sasaki , Kenji Nishide , Ryozo Yamauchi , Shigefumi Yamasaki
发明人： Ryokichi Matsumoto , Hideki Sasaki , Kenji Nishide , Ryozo Yamauchi , Shigefumi Yamasaki
IPC分类号： G02B6/27
CPC分类号： G02B6/2843 , G02B6/105
摘要： A polarization-maintaining optical fiber component which suppresses coupling of propagating light to a high-order mode at the optical coupling section of the polarization-maintaining optical fiber component, caused by different refractive indexes between the stress applying sections and the cladding, thus reducing excess loss, is constructed by using a polarization-maintaining optical fiber having stress applying sections arranged symmetrically to each other with respect to a core in a cladding surrounding the core, wherein the largest one of those concentric circles of the core or the said cladding which do not reach the stress applying sections and do not include the stress applying sections within has a diameter of 20 μm or greater.
摘要翻译：在偏振保持光纤部件的光耦合部分抑制传播光耦合到高阶模式的偏振保持光纤部件，由应力施加部分和包层之间的不同折射率引起，从而减少了多余的损耗通过使用具有相对于围绕芯的包层中的芯彼此对称布置的应力施加部分的偏振保持光纤构成，其中芯或所述包层中的最大的一个同心圆做没有到达应力施加部分，并且不包括其内的应力施加部分具有20μm或更大的直径。

7. 发明授权

US06836418B2 Slant short-period grating 失效
标题翻译：斜长时间光栅
公开(公告)号：US06836418B2
公开(公告)日：2004-12-28
申请号：US10311641
申请日：2002-12-17
申请人： Akira Sakamoto , Masaaki Sudo , Reiko Kojima , Tomosada Inada , Satoshi Okude , Kenji Nishide
发明人： Akira Sakamoto , Masaaki Sudo , Reiko Kojima , Tomosada Inada , Satoshi Okude , Kenji Nishide
IPC分类号： G02B634
CPC分类号： G02B6/02119
摘要： There is provided a slant short-period grating which is obtainable by irradiating light onto an optical fiber whose core is formed from quartz glass to which has been doped a photosensitive dopant that changes a refractive index of the quartz glass by light irradiation, and whose clad has one or two or more layers with at least the layer that is adjacent to the core being a photosensitive layer formed from quartz glass to which has been doped a photosensitive dopant that changes a refractive index of the quartz glass by light irradiation. In this slant short-period grating a grating portion is formed by changing the refractive index of the photosensitive layer of the clad and the core at a predetermined grating period along a longitudinal direction of the optical fiber by a predetermined slant angle. The diameter of the core is set to 5 &mgr;m or more, and the relative photosensitivity ratio of the core relative to the photosensitive layer of the clad that is adjacent to the core is designed so as to satisfy a predetermined formula. As a result, in the wavelength spectrum of transmitted light, loss peaks are obtained in a narrow frequency band.
摘要翻译：提供了一种倾斜的短周期光栅，其可以通过将光照射到其由已经掺杂有通过光照射改变石英玻璃的折射率的光敏掺杂剂的石英玻璃形成的光纤上而获得，并且其包层具有一层或两层以上至少具有与芯相邻的层的层是由石英玻璃形成的感光层，已经掺杂有通过光照射改变石英玻璃的折射率的光敏掺杂剂。在这种倾斜的短周期光栅中，光栅部分是通过以预定的倾斜角度沿光纤长度方向改变预定光栅周期的包层和芯的感光层的折射率来形成的。将芯的直径设定为5μm以上，并且将芯相对于与芯相邻的包层的感光层的相对光敏度比设计为满足预定公式。结果，在透射光的波长光谱中，在窄频带中获得损失峰值。

8. 发明申请

US20050041923A1 Optical fiber grating, optical fiber grating manufacturing method, and optical fiber grating manufacturing apparatus 审中-公开
标题翻译：光纤光栅，光纤光栅制造方法和光纤光栅制造装置
公开(公告)号：US20050041923A1
公开(公告)日：2005-02-24
申请号：US10952092
申请日：2004-09-28
申请人： Yuu Ishii , Michihiro Nakai , Satoshi Okude , Kenji Nishide , Kensuke Shima
发明人： Yuu Ishii , Michihiro Nakai , Satoshi Okude , Kenji Nishide , Kensuke Shima
IPC分类号： G02B5/18 , C03B25/00 , G02B5/26 , G02B6/02 , G02B6/10 , G02B6/124 , G02B6/34
CPC分类号： G02B6/02185
摘要： The invention provides a method and apparatus that precisely and efficiently improves the optical properties of an optical fiber grating. Preferably hydrogen loading processing, grating formation processing that forms a grating part by irradiation with ultraviolet light at a predetermined period, and preferably dehydrogenation, adjusting the optical properties by a suitable combination of uniform ultraviolet irradiation processing that irradiates the grating part as a whole with ultraviolet light and heat trimming processing, and finally heat aging is carried out.
摘要翻译：本发明提供了一种精确有效地改善光纤光栅的光学特性的方法和装置。优选氢负载处理，通过在预定时间内用紫外线照射形成光栅部分的光栅形成处理，优选脱氢，通过将紫外线照射整体照射到紫外线的均匀紫外线照射处理的适当组合来调节光学性能光和热修整加工，最后进行热老化。

9. 发明授权

US06819834B2 Optical fiber grating, optical fiber grating manufacturing method, and optical fiber grating manufacturing apparatus 失效
标题翻译：光纤光栅，光纤光栅制造方法和光纤光栅制造装置
公开(公告)号：US06819834B2
公开(公告)日：2004-11-16
申请号：US09929934
申请日：2001-08-15
申请人： Yuu Ishii , Michihiro Nakai , Satoshi Okude , Kenji Nishide , Kensuke Shima
发明人： Yuu Ishii , Michihiro Nakai , Satoshi Okude , Kenji Nishide , Kensuke Shima
IPC分类号： G02B634
CPC分类号： G02B6/02185
摘要： The invention provides a method and apparatus that precisely and efficiently improves the optical properties of an optical fiber grating. Preferably hydrogen loading processing, grating formation processing that forms a grating part by irradiation with ultraviolet light at a predetermined period, and preferably dehydrogenation, adjusting the optical properties by a suitable combination of uniform ultraviolet irradiation processing that irradiates the grating part as a whole with ultraviolet light and heat trimming processing, and finally heat aging is carried out.
摘要翻译：本发明提供了一种精确有效地改善光纤光栅的光学特性的方法和装置。优选氢负载处理，通过在预定时间内用紫外线照射形成光栅部分的光栅形成处理，优选脱氢，通过将紫外线照射整体照射到紫外线的均匀紫外线照射处理的适当组合来调节光学性能光和热修整加工，最后进行热老化。

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