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公开(公告)号：US06501892B1
公开(公告)日：2002-12-31
申请号：US09580971
申请日：2000-05-30
IPC分类号： G02B602
CPC分类号： G02B6/02242 , G02B6/02261 , G02B6/03627 , G02B6/03644 , G02B6/29377 , H04B10/2525
摘要： The dispersion-compensating fiber according to the present invention is an optical fiber having a structure which, when constituting an optical transmission line together with a dispersion-shifted fiber, whose zero-dispersion wavelength is in a 1.5-&mgr;m wavelength band, for guiding light signals in the 1.5-&mgr;m wavelength band or 1.6-&mgr;m wavelength band, is capable of improving transmission characteristics of the whole optical transmission line and allowing the dispersion to be compensated for efficiently and the size thereof to become smaller; and has a structure for improving the total dispersion slope of the optical transmission line while in a state fully compensating for the dispersion of the dispersion-shifted fiber. This dispersion-compensating fiber has a triple cladding structure having a first cladding, a second cladding, and a third cladding which are successively provided on the outer periphery of a core; and, in a state where the relative refractive index differences in the regions and outside diameters thereof are optimized so as to compensate for the dispersion-shifted fiber, realizes an optical transmission system having a favorable total dispersion slope.
摘要翻译： 根据本发明的色散补偿光纤是具有这样的结构的光纤，该光纤在与零色散波长为1.5μm波段的色散位移光纤一起构成光传输线时，用于引导光 在1.5μm波长带或1.6μm波长带的信号能够改善整个光传输线的传输特性，并且可以有效地补偿色散并使其尺寸变小; 并且具有在完全补偿色散位移光纤的色散的状态下改善光传输线的总色散斜率的结构。 该色散补偿光纤具有三层包层结构，其具有连续设置在芯的外周上的第一包层，第二包层和第三包层; 并且在其区域和外径的相对折射率差被优化以补偿色散位移光纤的状态下，实现具有良好的总色散斜率的光传输系统。
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公开(公告)号：US06347174B1
公开(公告)日：2002-02-12
申请号：US09297173
申请日：1999-07-06
IPC分类号： H04N591
CPC分类号： G02B6/03644 , G02B6/02028 , G02B6/02242 , G02B6/02276 , G02B6/0228 , G02B6/03627 , G02B6/03655 , G02B6/105 , G02F1/383
摘要： The present invention relates to a nonlinear optical fiber which can generate a nonlinear optical phenomenon with high efficiency, an optical fiber coil wound with the nonlinear optical fiber, and a wavelength converter equipped with the nonlinear optical fiber. In particular, the nonlinear optical fiber according to the present invention has, as characteristics with respect to input light having a predetermined wavelength, a mode field diameter of 5 &mgr;m or less, a polarization mode dispersion of 1 ps/km½ or less or a fixed plane of polarization, a zero-dispersion wavelength of not less than 1.5 &mgr;m but not greater than 1.6 &mgr;m, a cutoff wavelength of not less than 1.4 &mgr;m but not greater than 1.7 &mgr;m at a length of 2 m, a transmission loss of 3 dB/km or less, and a nonlinear coefficient of 10/W/km or more. As a result of this configuration, the nonlinear optical fiber generates, with high efficiency, desirable converted light occurring upon the nonlinear phenomenon.
摘要翻译： 本发明涉及一种能够高效率地产生非线性光学现象的非线性光纤，与非线性光纤缠绕的光纤线圈以及配备非线性光纤的波长转换器。 特别地，根据本发明的非线性光纤作为具有预定波长的输入光的特性，模场直径为5um以下，偏振模色散为1ps / km 1/2以下或固定 偏振平面，零分散波长不小于1.5μm但不大于1.6μm，截止波长不小于1.4μm，但不大于1.7μm，长度为2μm，传输损耗为3dB / km以下，非线性系数为10 / W / km以上。 作为该结构的结果，非线性光纤以非线性现象产生期望的转换光，高效率地产生。
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公开(公告)号：US06611637B1
公开(公告)日：2003-08-26
申请号：US09542280
申请日：2000-04-04
申请人： Toshiaki Okuno , Shinji Ishikawa
发明人： Toshiaki Okuno , Shinji Ishikawa
IPC分类号： G02B634
CPC分类号： G02B6/29377 , G02B6/29317 , G02B6/29337 , G02B6/29394 , H04B10/2519 , H04B10/2525
摘要： The present invention relates to a dispersion-compensating module functioning to compensate for the chromatic deviation occurring in an optical transmission line and comprising a structure adapted to be easily inserted in an optical transmission system. The dispersion-compensating module according to the present invention comprises an input end and an output end for signal light, and also comprises dispersion-compensating means such as a dispersion-compensating optical fiber or the like, and loss-equalizing means for compensating for at least the wavelength-dependent loss deviation in the dispersion-compensating means.
摘要翻译： 本发明涉及一种色散补偿模块，其功能是补偿在光传输线路中发生的色差，并包括适于容易地插入到光传输系统中的结构。 根据本发明的色散补偿模块包括用于信号光的输入端和输出端，并且还包括色散补偿装置，例如色散补偿光纤等，以及损耗均衡装置，用于补偿 色散补偿装置中的波长相关损耗偏差最小。
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公开(公告)号：US08054537B2
公开(公告)日：2011-11-08
申请号：US11883364
申请日：2007-01-17
申请人： Toshiaki Okuno
发明人： Toshiaki Okuno
CPC分类号： G02F1/3513 , G02F2001/3503 , G02F2001/3528
摘要： The present invention relates to a light source apparatus that has a base structure capable of generating SC light and further having a structure that enables the shaping of the spectral waveform of the SC light, power adjustment of the SC light, or adjustment of the frequency of repetition of the pulse train that contains the SC light. For example, a light source apparatus that enables shaping of spectral waveforms comprises a seed light source that emits seed light which is a pulse train or continuous light; an optical fiber that generates SC light from the seed light, and spectrum shaping means for completely or partially changing the spectral waveform of the SC light. The shaping of the spectral waveform changes the maximum power of the seed light by changing the optical coupling efficiency of the seed light source and optical fiber, for example, thereby suitably deforms the spectrum of the SC light.
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公开(公告)号：US08054525B2
公开(公告)日：2011-11-08
申请号：US12530753
申请日：2008-03-13
申请人： Toshiaki Okuno
发明人： Toshiaki Okuno
IPC分类号： G02F1/03
CPC分类号： G02F1/353 , G02F1/3536 , G02F1/365 , G02F2201/02
摘要： Provided is a wavelength converter having a simple and low-cost structure. The wavelength converter generates converted light having a wavelength different from that of input light. The wavelength converter includes (1) a pump light source that outputs pump light, (2) an optical multiplexer that combines and outputs input light and the pump light, (3) a first optical fiber that receives and guides the input light and the pump light that have been combined and output by the optical multiplexer and generates converted light using a nonlinear optical phenomenon that occurs while the first optical fiber guides the input light and the pump light, the first optical fiber being coiled, and (4) zero-dispersion wavelength adjusting means that adjusts a zero-dispersion wavelength of the first optical fiber.
摘要翻译： 提供了具有简单且低成本结构的波长转换器。 波长转换器产生具有与输入光不同的波长的转换光。 波长转换器包括（1）输出泵浦光的泵浦光源，（2）组合并输出输入光和泵浦光的光复用器，（3）接收并引导输入光和泵的第一光纤 由光复用器组合并输出的光，并且使用在第一光纤引导输入光和泵浦光时发生的非线性光学现象产生转换光，第一光纤被卷绕，以及（4）零色散 波长调整装置，其调节第一光纤的零色散波长。
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公开(公告)号：US20110221056A1
公开(公告)日：2011-09-15
申请号：US12976244
申请日：2010-12-22
申请人： Takaaki Miyaji , Akihiko Sano , Tadashi Inoue , Toshiaki Okuno , Yoshiki Hada , Sayaka Doi , Yoshiki Ashihara
发明人： Takaaki Miyaji , Akihiko Sano , Tadashi Inoue , Toshiaki Okuno , Yoshiki Hada , Sayaka Doi , Yoshiki Ashihara
IPC分类号： H01L23/488
CPC分类号： B81B7/007 , B81B2207/095
摘要： An electrode structure has a Cu electrode that provided in a surface of a substrate, a diffusion preventing film that is made of a material in which a diffusion coefficient of Sn is equal to or lower than 3×10−23 cm2/sec, the whole Cu electrode being covered with the diffusion preventing film, and a solder layer that is provided above the diffusion preventing film, the solder layer being made of Au—Sn solder.
摘要翻译： 电极结构具有设置在基板的表面的Cu电极，由扩散系数Sn等于或低于3×10-23cm 2 / sec的材料制成的扩散防止膜，整体 Cu电极被扩散防止膜覆盖，以及设置在扩散防止膜上方的焊料层，焊料层由Au-Sn焊料制成。
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公开(公告)号：US07580183B2
公开(公告)日：2009-08-25
申请号：US10377104
申请日：2003-03-03
申请人： Motoki Kakui , Toshiaki Okuno , Masayuki Nishimura
发明人： Motoki Kakui , Toshiaki Okuno , Masayuki Nishimura
CPC分类号： H04B10/2942 , H04B10/2916
摘要： In an optical amplifier according to the present invention, a change signal from a change signal source is fed into a light source or a drive circuit. The wavelength of light outputted from the light source is changed based on the change signal. The wavelength-changed output light from the light source is outputted as pumping light from a pumping light generator to be supplied backwardly via an optical multiplexer/demultiplexer into an optical fiber. Signal light is Raman-amplified in the optical fiber with the supply of the pumping light.
摘要翻译： 在根据本发明的光放大器中，来自改变信号源的改变信号被馈送到光源或驱动电路中。 从光源输出的光的波长根据变化信号而改变。 来自光源的波长变化的输出光作为来自泵浦光发生器的泵浦光输出，经由光复用器/解复用器向后供给到光纤中。 信号光在提供泵浦光的情况下在光纤中进行拉曼放大。
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公开(公告)号：US07483614B2
公开(公告)日：2009-01-27
申请号：US11516517
申请日：2006-09-07
IPC分类号： G02B6/02
CPC分类号： G02B6/02214 , G02B6/02028 , G02B6/02242 , G02B6/0228 , G02B6/02285 , G02B6/0281 , G02B6/03627 , G02B6/03644 , G02B6/0365 , G02B6/03666 , G02F1/3536 , G02F2201/02
摘要： There is disclosed an optical fiber wherein an absolute value of the fourth order dispersion β4 of fourth derivative β4 of propagation constant β with respect to angular frequency ω at a mean zero dispersion wavelength λ0 in an overall length is not more than 5×10−56 s4/m and wherein a fluctuation of a zero dispersion wavelength along a longitudinal direction is not more than ±0.6 nm.
摘要翻译： 公开了一种光纤，其中传播常数β的第四导数β4的四阶色散β4相对于平均零色散波长λ0在总长度上的角频率ω的绝对值不大于5×10 -56 s4 / 并且其中沿着纵向方向的零色散波长的波动不大于±0.6nm。
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公开(公告)号：US20070189681A1
公开(公告)日：2007-08-16
申请号：US11643942
申请日：2006-12-22
申请人： Toshiaki Okuno
发明人： Toshiaki Okuno
IPC分类号： G02B6/00
CPC分类号： G02F1/365 , G02F1/353 , G02F2001/3528
摘要： A nonlinear optical signal-treating apparatus can suppress the distortion of pulse light to be inputted into an optical fiber to an allowable level or less. The apparatus comprises a pulse light source for outputting first pulse light, a first optical fiber, a second optical fiber that is spliced with the first optical fiber and has a mode-field diameter smaller than that of the first optical fiber, and a light-introducing system for inputting the first pulse light into the first optical fiber. The second optical fiber receives the first pulse light and generates second pulse light having a newly produced wavelength. The peak power ratio of the first pulse light outputted from the first optical fiber to that inputted into the first optical fiber and the pulse width ratio of the first pulse light outputted from the first optical fiber to that inputted into the first optical fiber are 0.5 to 1.5.
摘要翻译： 非线性光信号处理装置可以将输入到光纤的脉冲光的失真抑制到允许值以下。 该装置包括用于输出第一脉冲光的脉冲光源，第一光纤，与第一光纤接合的模场直径小于第一光纤的模场直径的第二光纤， 用于将第一脉冲光输入到第一光纤中的引入系统。 第二光纤接收第一脉冲光并产生具有新产生的波长的第二脉冲光。 从第一光纤输出的第一脉冲光与输入到第一光纤的第一脉冲光的峰值功率比和从第一光纤输出的第一脉冲光的脉冲宽度比与输入到第一光纤的第一脉冲光的峰值功率比分别为0.5〜 1.5。
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公开(公告)号：US07162129B2
公开(公告)日：2007-01-09
申请号：US10829454
申请日：2004-04-22
申请人： Toshiaki Okuno
发明人： Toshiaki Okuno
CPC分类号： G02B6/02242 , G02B6/02004 , G02B6/02257 , G02B6/02266 , G02B6/0228 , G02B6/29377 , H04B10/25253
摘要： An optical transmission line and an optical transmission system capable of preventing signal distortion over a wide wavelength range are provided. The optical transmission line comprises a first negative dispersion fiber having an absolute value of a dispersion slope of not larger than 0.03 ps/nm2/km and overall dispersion of not larger than −5 ps/nm at one wavelength in the range of 1450 nm to 1600 nm, and a positive dispersion fiber, which are disposed in this order in a direction of transmission of signal light. The optical transmission system comprises a transmitter and an optical transmission line, the line comprising a first optical fiber disposed on the most upstream side and a second optical fiber spliced to the first optical fiber. The first optical fiber has negative chromatic dispersion and an absolute value of a dispersion slope of not larger than 0.03 ps/nm2/km at any one wavelength of the signal light. An absolute value of the sum of overall dispersion of the first optical fiber and overall dispersion of the second optical fiber is smaller than an absolute value of the overall dispersion of the first optical fiber.
摘要翻译： 提供了能够在宽波长范围内防止信号失真的光传输线路和光传输系统。 光传输线包括具有不大于0.03ps / nm 2 / km的色散斜率的绝对值的第一负色散光纤和一个不大于-5ps / nm的总色散 波长在1450nm至1600nm的范围内，正色散光纤以这种顺序沿信号光的透射方向设置。 光传输系统包括发射机和光传输线，该线路包括设置在最上游侧的第一光纤和与第一光纤接合的第二光纤。 第一光纤在信号光的任何一个波长处具有负色散和不大于0.03ps / nm 2 / km的色散斜率的绝对值。 第一光纤的总色散和第二光纤的总色散之和的绝对值小于第一光纤的总色散的绝对值。
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