Nonlinear optical signal-treating apparatus
    31.
    发明授权
    Nonlinear optical signal-treating apparatus 失效
    非线性光信号处理装置

    公开(公告)号:US07551822B2

    公开(公告)日:2009-06-23

    申请号:US12036576

    申请日:2008-02-25

    申请人: Toshiaki Okuno

    发明人: Toshiaki Okuno

    IPC分类号: G02B6/02 G02B6/32 G02B6/255

    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。

    Light Source Apparatus
    32.
    发明申请
    Light Source Apparatus 有权
    光源装置

    公开(公告)号:US20090022189A1

    公开(公告)日:2009-01-22

    申请号:US11883364

    申请日:2007-01-17

    申请人: Toshiaki Okuno

    发明人: Toshiaki Okuno

    IPC分类号: H01S3/10

    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 light.

    摘要翻译: 本发明涉及一种光源装置,其具有能够产生SC光的基底结构,并且还具有能够对SC光的光谱波形进行整形,SC光的功率调整或调整频率的结构 重复包含SC灯的脉冲串。 例如,能够形成光谱波形的光源装置包括发射作为脉冲串或连续光的种子光的种子光源; 从种子光产生SC光的光纤以及用于完全或部分地改变SC光的光谱波形的光谱整形装置。 光谱波形的变形例如通过改变种子光源和光纤的光耦合效率来改变种子光的最大功率,从而适当地使光谱变形。

    Optical demultiplexer and optical transmission system
    33.
    发明授权
    Optical demultiplexer and optical transmission system 有权
    光解复用器和光传输系统

    公开(公告)号:US07324756B2

    公开(公告)日:2008-01-29

    申请号:US10407935

    申请日:2003-04-07

    IPC分类号: H04J14/02

    CPC分类号: H04J14/0224 H04J14/06

    摘要: It is an object of the present invention to provide an optical transmission system in which multiple optical frequencies can be efficiently used and the change of the system can be easily made, and to provide an optical demultiplexer suitable for such optical transmission system. In an optical demultiplexer according to the present invention, signal light having a plurality of wavelength components arranged on a grid having predetermined frequency intervals is input from an input port thereof to be demultiplexed. The demultiplexed signal lights output from the output ports thereof have a plurality of wavelength components, respectively, and any three wavelength components, fa, fb, and fd, that satisfy the following conditions: fa

    摘要翻译: 本发明的目的是提供一种可以有效利用多个光频率并且可以容易地进行系统改变的光传输系统,并且提供一种适用于这种光传输系统的光解复用器。 在根据本发明的光解复用器中,从其输入端口输入具有布置在具有预定频率间隔的网格上的多个波长分量的信号光,以被解复用。 从其输出端口输出的解复用的信号光分别具有多个波长分量,并且任何三个波长分量,f a,b,f b, d ,满足以下条件:f 并且f 具有以下关系:2f< b><< 其中N表示整数,Deltaf表示每个预定频率间隔。

    Wavelength converter
    34.
    发明授权
    Wavelength converter 有权
    波长转换器

    公开(公告)号:US07202994B2

    公开(公告)日:2007-04-10

    申请号:US10804174

    申请日:2004-03-19

    IPC分类号: G02F1/365

    摘要: The present invention relates to a wavelength converter of structure enabling generation of converted light with high power even with a large difference between the wavelength of pumping light and the zero-dispersion wavelength. The wavelength converter includes an optical fiber having a dispersion slope whose absolute value at the wavelength of 1550 nm is 0.01 ps/nm2/km or less, for example.

    摘要翻译: 本发明涉及一种波长转换器,其结构能够即使在泵浦光的波长和零色散波长之间具有大的差异的情况下也能够产生具有高功率的转换光。 波长转换器包括例如具有波长1550nm的绝对值为0.01ps / nm 2 / km以下的色散斜率的光纤。

    Wavelength converter
    36.
    发明授权
    Wavelength converter 失效
    波长转换器

    公开(公告)号:US06982823B2

    公开(公告)日:2006-01-03

    申请号:US10651253

    申请日:2003-08-29

    申请人: Toshiaki Okuno

    发明人: Toshiaki Okuno

    IPC分类号: G02F1/365

    摘要: Provided is a wavelength converter that makes it possible to improve the S/N ratio of output signal light. In the wavelength converter, optical pump light λ3 output from an optical pump source passes through a first reflector and travels through an optical fiber. Light having wavelengths that differ from the aforementioned wavelength is generated by a nonlinear optical phenomenon at the optical fiber. Of the light, generated light λ4 having a resonant wavelength of a resonator is optically amplified and oscillated. An input signal λ1 also passes through the first reflector and travels through the optical fiber. At the optical fiber, an output signal light λ2 having a different wavelength is generated by a nonlinear optical phenomenon between the generated light λ4 and the input signal light λ1. The output signal light λ2 passes through a second reflector and is output from a resonator.

    摘要翻译: 提供了可以提高输出信号光的S / N比的波长转换器。 在波长转换器中,从光泵浦源输出的光泵浦光λ3 <3>通过第一反射器并且穿过光纤。 具有与上述波长不同的波长的光由光纤上的非线性光学现象产生。 在光中,具有谐振器的谐振波长的产生光λ4被光学放大和振荡。 输入信号λ1也通过第一反射器并且穿过光纤。 在光纤中,具有不同波长的输出信号光λ2 <2>由产生的光λ4和输入信号光λ 1 。 输出信号光λ2 <2>通过第二反射器并从谐振器输出。

    Method of wavelength conversion and wavelength converter
    37.
    发明申请
    Method of wavelength conversion and wavelength converter 有权
    波长转换和波长转换器的方法

    公开(公告)号:US20050207757A1

    公开(公告)日:2005-09-22

    申请号:US11042334

    申请日:2005-01-26

    申请人: Toshiaki Okuno

    发明人: Toshiaki Okuno

    摘要: The wavelength converter comprises (1) an optical multiplexer for multiplexing an amplitude-modulated first light and reference light, which is continuous light having a wavelength different from the wavelength of the first light, (2) an optical fiber for propagating the multiplexed light therethrough to generate a third light by a non-linear optical phenomenon, and (3) an optical filter having a pass wavelength range set such that a pulse time width of the third light is 20% or more narrower than a pulse time width of the first light after the third light has passed through the optical filter, or (3′) an optical filter having a pass wavelength range set such that a cross point of an eye pattern of the third light is lower than a cross point of an eye pattern of the first light after the third light has passed through the optical filter.

    摘要翻译: 波长转换器包括(1)用于多路复用调幅第一光和参考光的光复用器,该参考光是具有不同于第一光波长的波长的连续光,(2)用于传播多路复用光的光纤通过 通过非线性光学现象产生第三光,以及(3)通过波长范围设定为使得第三光的脉冲宽度比第一光的脉冲宽度窄20%以上的滤光器 在第三光通过滤光器之后的光,或(3')具有通过波长范围设置为使得第三光的眼图的交叉点低于眼图的交叉点的滤光器 第三光之后的第一光经过滤光器。

    Dispersion-compensating module
    38.
    发明授权
    Dispersion-compensating module 失效
    色散补偿模块

    公开(公告)号:US06853766B2

    公开(公告)日:2005-02-08

    申请号:US10218491

    申请日:2002-08-15

    IPC分类号: G02B6/255 G02B6/34 G02B6/26

    CPC分类号: G02B6/29394 G02B6/2551

    摘要: The present invention relates to a dispersion-compensating module having a structure which compensates for the dispersion of an optical transmission line in a wavelength band of 1.55 μm and adjusts loss fluctuations among wavelengths in the wavelength band of 1.55 μm into an appropriate range. The module comprises a structure adapted to be installed in an already installed optical fiber transmission line, and has a loss slope with a polarity opposite to that of the optical fiber transmission line in the wavelength band of 1.55 μm. An example of the module comprises a dispersion-compensating optical fiber as a dispersion-compensating device, and an optical fiber doped with a transition metal element as a loss-equalizing device. Consequently, the loss fluctuations among individual wavelengths in the whole transmission line including the dispersion-compensating module are adjusted by the loss-equalizing device in the dispersion-compensating module so as to fall within an appropriate range.

    摘要翻译: 本发明涉及一种具有补偿光传输线在1.55μm波段的色散的结构的色散补偿模块,并且将波长为1.55μm的波长之间的损耗波动调整到适当的范围内。 该模块包括适于安装在已经安装的光纤传输线中的结构,并且具有与1.55μm波长带中的光纤传输线的极性相反的损耗斜率。 该模块的一个例子包括作为色散补偿装置的色散补偿光纤,以及掺杂过渡金属元素作为损耗均衡装置的光纤。 因此,通过色散补偿模块中的损耗均衡装置来调整包括色散补偿模块在内的整个传输线中的各个波长之间的损耗波动,使其落入适当的范围内。