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111. 发明授权

US06295843B1 Method of making a single-mode optical fiber with multiple concentric core portions by using an outside vapor deposition process 失效
标题翻译：通过使用外部气相沉积工艺制造具有多个同心心部分的单模光纤的方法
公开(公告)号：US06295843B1
公开(公告)日：2001-10-02
申请号：US09535533
申请日：2000-03-27
申请人： Yoshiaki Terasawa , Yuji Takahashi , Takatoshi Kato
发明人： Yoshiaki Terasawa , Yuji Takahashi , Takatoshi Kato
IPC分类号： C03B37027
CPC分类号： G02B6/0365 , C03B37/01211 , C03B37/01413 , C03B37/027 , C03B2203/22 , C03B2203/29 , G02B6/02004 , G02B6/02009 , G02B6/02238 , G02B6/0228 , G02B6/03611 , G02B6/03633 , G02B6/03644
摘要： The present invention relates to a single-mode optical fiber having a configuration which enables lowering of dispersion slope while securing a sufficient MFD. This single-mode optical fiber has a refractive index profile in which an indent with a sufficient width is provided at the center of its core region. In particular, this indent satisfies the following relationship: a·(&Dgr;n2−&Dgr;n1)/(b·&Dgr;n2)≧0.04 when the first core portion in the single-mode optical fiber has a mean relative refractive index difference of &Dgr;n1 with respect to the cladding portion and an outer diameter of a while the second core portion has a mean relative refractive index difference of &Dgr;n2 with respect to the cladding portion and an outer diameter of b.
摘要翻译：本发明涉及具有能够在确保足够的MFD的同时降低色散斜率的结构的单模光纤。该单模光纤具有折射率分布，其中具有足够宽度的凹口设置在其核心区域的中心。特别地，该凹痕满足以下关系：当单模光纤中的第一纤芯部分具有相对于包层部分的DELTAn1的平均相对折射率差异以及第二芯部分具有的外径 DELTAn2相对于包层部分的平均相对折射率差和b的外径。

112. 发明授权

US06188360B1 Radio-frequency radiation source, radio frequency radiation source array, antenna module, and radio equipment 失效
标题翻译：射频辐射源，射频辐射源阵列，天线模块和无线电设备
公开(公告)号：US06188360B1
公开(公告)日：2001-02-13
申请号：US09389856
申请日：1999-09-02
申请人： Takatoshi Kato , Koichi Sakamoto , Kenichi Iio , Yohei Ishikawa
发明人： Takatoshi Kato , Koichi Sakamoto , Kenichi Iio , Yohei Ishikawa
IPC分类号： H01Q302
CPC分类号： H01P7/10
摘要： A radio-frequency radiation source comprises electrodes containing opposing electrodeless parts formed on both sides of a dielectric plate in which the electrodeless parts are made to function as a dielectric resonator, a slit formed in the electrodeless part, and a switching element mounted over the slit. Further, a transmission line coupled to the dielectric resonator is provided. As constructed this way, the resonance frequency of the resonator is switched by turn-on and turn-off of the switching element. When the resonator resonates with the frequency of a signal propagated through the transmission line, the energy of the electromagnetic field is radiated to the outside through a slot.
摘要翻译：射频辐射源包括形成在电介质板的两侧上的相对无电极部分的电极，其中无电极部分用作介电谐振器，形成在无电极部分中的狭缝以及安装在狭缝上的开关元件。此外，提供耦合到介质谐振器的传输线。如这样构成的，谐振器的谐振频率通过开关元件的导通和截止来切换。当谐振器与通过传输线传播的信号的频率谐振时，电磁场的能量通过一个槽辐射到外部。

113. 发明授权

US5732178A Single-mode optical fiber 失效
标题翻译：单模光纤
公开(公告)号：US5732178A
公开(公告)日：1998-03-24
申请号：US756484
申请日：1996-11-26
申请人： Yoshiaki Terasawa , Shinji Ishikawa , Takatoshi Kato
发明人： Yoshiaki Terasawa , Shinji Ishikawa , Takatoshi Kato
IPC分类号： G02B6/02 , G02B6/036
CPC分类号： G02B6/02009 , G02B6/02042 , G02B6/03633 , G02B6/02276
摘要： This invention relates to a dispersion-shifted fiber containing silica glass as the major component and in which the zero-dispersion wavelength is set to fall within a range of 1,560 nm to 1,580 nm and the mode field diameter with respect to light having a predetermined wavelength is set to 8 .mu.or more. This dispersion-shifted fiber is a single-mode optical fiber capable of decreasing the influence of nonlinear optical effect and having a structure for suppressing an increase in bending loss of the optical fiber, and includes a core region constituted by the first core portion and the second core portion, and a cladding portion. In particular, an outer diameter a of the first core portion and an outer diameter b of the second core portion satisfy at least a relationship 0.10.ltoreq.a/b .ltoreq.0.29.
摘要翻译：本发明涉及一种含有二氧化硅玻璃作为主要成分的色散位移光纤，其中零色散波长设定在1560nm至1,580nm的范围内，相对于具有预定波长的光的模场直径设定为8亩以上。该色散位移光纤是能够降低非线性光学效果的影响并具有抑制光纤的弯曲损耗增加的结构的单模光纤，并且包括由第一芯部和第二芯部分和包层部分。特别地，第一芯部的外径a和第二芯部的外径b至少满足0.10≤a/b≤0.29的关系。

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