公开(公告)号：US08712252B2

公开(公告)日：2014-04-29

申请号：US13275343

申请日：2011-10-18

申请人： Shin Masuda ,  Kazunori Shiota

发明人： Shin Masuda ,  Kazunori Shiota

IPC分类号： H04B10/04

CPC分类号： G01R31/31709

摘要： To efficiently apply jitter to an optical signal using a simple configuration, provided is an optical signal output apparatus that outputs an optical pulse pattern signal including jitter, the optical signal generating apparatus comprising a light source section that outputs an optical signal having an optical frequency corresponding to a frequency control signal; an optical modulation section that modulates the optical signal output by the light source section, according to a designated pulse pattern; and an optical jitter generating section that delays an optical signal passed by the optical modulation section according to the optical frequency, to apply jitter to the optical signal.

摘要翻译： 为了使用简单的配置有效地将抖动应用于光信号，提供了一种输出包括抖动的光脉冲图形信号的光信号输出装置，该光信号发生装置包括：光源部，其输出具有光频率的光信号 到频率控制信号; 光调制部，其根据指定的脉冲图案调制由光源部输出的光信号; 以及光学抖动生成部，其根据光频率延迟由光调制部通过的光信号，以向光信号施加抖动。

公开(公告)号：US08224143B2

公开(公告)日：2012-07-17

申请号：US12713184

申请日：2010-02-26

申请人： Shin Masuda ,  Kazunori Shiota ,  Atsushi Seki

发明人： Shin Masuda ,  Kazunori Shiota ,  Atsushi Seki

IPC分类号： G02B6/10 ,  B32B9/04 ,  B05D5/06 ,  H01L21/00

CPC分类号： G02F1/0018 ,  G02F1/0316 ,  G02F1/035 ,  G02F2001/212 ,  Y10T428/325

摘要： Provided is a substrate structure and a manufacturing method thereof, the substrate structure including a base substrate of single crystal; and a rhombohedral ferroelectric thin film exhibiting a spontaneous ferroelectric polarization and of a perovskite structure, the ferroelectric thin film being formed on a surface of the base substrate. The substrate structure may further include an optical waveguide formed on the ferroelectric thin film; and an electric field applying section that applies, to the optical waveguide, an electric field parallel to a surface of the base substrate. The electric field applying section generates the electric field so that the electric field direction of the electric field applied to the optical waveguide is parallel to a direction of the spontaneous ferroelectric polarization of the ferroelectric thin film.

摘要翻译： 提供一种基板结构及其制造方法，该基板结构包括单晶基底; 以及表现出自发铁电极化和钙钛矿结构的菱形铁电薄膜，所述铁电薄膜形成在所述基底基板的表面上。 基板结构还可以包括形成在铁电薄膜上的光波导; 以及电场施加部，其向光波导施加平行于基底的表面的电场。 电场施加部产生电场，使得施加到光波导的电场的电场方向平行于铁电薄膜的自发铁电极化方向。

公开(公告)号：US07898733B2

公开(公告)日：2011-03-01

申请号：US12422758

申请日：2009-04-13

申请人： Kazunori Shiota ,  Shin Masuda ,  Masataka Nakazawa ,  Masato Yoshida

发明人： Kazunori Shiota ,  Shin Masuda ,  Masataka Nakazawa ,  Masato Yoshida

IPC分类号： H04B10/17 ,  H01S3/00

CPC分类号： H01S3/06791 ,  H01S3/0675 ,  H01S3/08 ,  H01S3/094042 ,  H01S3/1109 ,  H01S3/1118

摘要： A laser oscillator includes a ring resonator. The ring resonator includes an optical circulator having first, second, third, and fourth ports and a first optical amplification fiber connected to the optical circulator. Light incident on the first port is exited from the second port, and light incident on the second port is exited from the third port. The fourth port provides an exciting light and injects the exciting light into the ring resonator through the first port. The first optical amplification fiber amplifies light exited from the third port with the exciting light provided by the fourth port. The laser oscillator also includes an optical member connected to the optical circulator. The optical member reflects at least a part of the light exited from the second port and injects the same into the second port again.

摘要翻译： 激光振荡器包括环形谐振器。 环形谐振器包括具有第一，第二，第三和第四端口的光循环器和连接到光循环器的第一光放大光纤。 第一个港口的光线从第二个港口出发，第二个港口的光线从第三个港口出来。 第四个端口提供激发光，并通过第一个端口将激发光注入环形谐振器。 第一光放大光纤利用由第四端口提供的激发光放大从第三端口退出的光。 激光振荡器还包括连接到光循环器的光学构件。 光学构件反射从第二端口退出的光的至少一部分，并再次将其注入第二端口。

公开(公告)号：US08792792B2

公开(公告)日：2014-07-29

申请号：US13275336

申请日：2011-10-18

申请人： Shin Masuda ,  Kazunori Shiota

发明人： Shin Masuda ,  Kazunori Shiota

IPC分类号： H04B10/04 ,  H01S5/042 ,  H01S5/068 ,  H01S3/067 ,  H01S5/00 ,  H01S5/40 ,  H01S3/00

CPC分类号： H01S5/0427 ,  H01S3/0064 ,  H01S3/06754 ,  H01S5/0057 ,  H01S5/06821 ,  H01S5/4006

摘要： [PROBLEM] Providing an optical source that outputs optical frequency modulated light having a constant output optical intensity.[MEANS FOR SOLVING THE PROBLEM] Provided is a light source apparatus that outputs an optical signal having an optical frequency corresponding to a frequency control signal, the light source apparatus including a laser light source section that outputs laser light having an optical frequency corresponding to the frequency control signal; and an optical intensity adjusting section that compensates for intensity change of the laser light to output laser light in which the intensity change caused by a change in the optical frequency is restricted. The optical intensity adjusting section includes an optical amplification section that adjusts an amplification factor of the laser light from the laser light source section, based on the frequency control signal, to restrict the intensity change of laser light corresponding to the frequency control signal, and outputs the resulting laser light.

摘要翻译： [问题]提供输出具有恒定输出光强度的光调制光的光源。 解决问题的手段提供一种光源装置，其输出具有与频率控制信号对应的光频的光信号，该光源装置包括激光源部，该激光光源部输出具有对应于 频率控制信号; 以及光强度调节部，其补偿激光的强度变化以输出由光频率的变化引起的强度变化的激光。 光强度调节部包括光放大部，其基于频率控制信号来调整来自激光光源部的激光的放大系数，以限制与频率控制信号对应的激光的强度变化，并输出 产生的激光。

公开(公告)号：US20120269521A1

公开(公告)日：2012-10-25

申请号：US13275336

申请日：2011-10-18

申请人： Shin Masuda ,  Kazunori Shiota

发明人： Shin Masuda ,  Kazunori Shiota

IPC分类号： H01S5/0687 ,  H04B10/04

CPC分类号： H01S5/0427 ,  H01S3/0064 ,  H01S3/06754 ,  H01S5/0057 ,  H01S5/06821 ,  H01S5/4006

摘要： To efficiently apply jitter to an optical signal using a simple configuration, provided is an optical signal generating apparatus that outputs an optical pulse pattern signal including jitter, the optical signal generating apparatus comprising a light source section that outputs laser light having an optical frequency corresponding to a frequency control signal, an optical modulation section that modulates an optical signal output by the light source section, according to a designated pulse pattern, and an optical jitter generating section that delays an optical signal passed by the optical modulation section according to the optical frequency, to apply jitter to the optical signal.

摘要翻译： 为了使用简单的配置有效地将抖动应用于光信号，提供了一种光信号发生装置，其输出包括抖动的光脉冲模式信号，该光信号发生装置包括：光源部，其输出具有对应于 频率控制信号，根据指定的脉冲模式调制由光源部输出的光信号的光调制部，以及光抖动发生部，其根据光频率延迟由光调制部通过的光信号 ，以将抖动应用于光信号。

公开(公告)号：US20100067100A1

公开(公告)日：2010-03-18

申请号：US12422758

申请日：2009-04-13

申请人： Kazunori Shiota ,  Shin Masuda ,  Masataka Nakazawa ,  Masato Yoshida

发明人： Kazunori Shiota ,  Shin Masuda ,  Masataka Nakazawa ,  Masato Yoshida

IPC分类号： H04B10/17 ,  H01S3/00

CPC分类号： H01S3/06791 ,  H01S3/0675 ,  H01S3/08 ,  H01S3/094042 ,  H01S3/1109 ,  H01S3/1118

摘要： A laser oscillator includes a ring resonator. The ring resonator includes an optical circulator having first, second, third, and fourth ports and a first optical amplification fiber connected to the optical circulator. Light incident on the first port is exited from the second port, and light incident on the second port is exited from the third port. The fourth port provides an exciting light and injects the exciting light into the ring resonator through the first port. The first optical amplification fiber amplifies light exited from the third port with the exciting light provided by the fourth port. The laser oscillator also includes an optical member connected to the optical circulator. The optical member reflects at least a part of the light exited from the second port and injects the same into the second port again.

摘要翻译： 激光振荡器包括环形谐振器。 环形谐振器包括具有第一，第二，第三和第四端口的光循环器和连接到光循环器的第一光放大光纤。 第一个港口的光线从第二个港口出发，第二个港口的光线从第三个港口出来。 第四个端口提供激发光，并通过第一个端口将激发光注入环形谐振器。 第一光放大光纤利用由第四端口提供的激发光放大从第三端口退出的光。 激光振荡器还包括连接到光循环器的光学构件。 光学构件反射从第二端口退出的光的至少一部分，并再次将其注入第二端口。

公开(公告)号：US07602546B2

公开(公告)日：2009-10-13

申请号：US11657410

申请日：2007-01-24

申请人： Kazunori Shiota ,  Shin Masuda ,  Masataka Nakazawa ,  Masato Yoshida

发明人： Kazunori Shiota ,  Shin Masuda ,  Masataka Nakazawa ,  Masato Yoshida

IPC分类号： H04B10/17 ,  H01S3/00

CPC分类号： H01S3/06791 ,  H01S3/0675 ,  H01S3/08 ,  H01S3/094042 ,  H01S3/1109 ,  H01S3/1118

摘要： To extend the temperature range for a stable operation without mode hopping and obtain a stable laser oscillation, a laser oscillator is provided. The laser oscillator includes: an optical circulator in which light incident on a first port is exited from the second port, light incident on the second port is exited from a third port, and light incident on a fourth port is exited from the first port; a first optical amplification fiber that amplifies the light exited from the third port because of being excited by an exciting light and injects the same into the first port; a reflective optical filter that reflects light with a predetermined wavelength among the light exited from the second port and injects the same into the second port again; and an pump light source that generates an exciting light to excite the first optical amplification fiber. The reflective optical filter transmits light oscillated by laser in a ring resonator including the first optical amplification fiber, the optical circulator and the reflective optical filter and outputs the same. The pump light source injects the exciting light from the fourth port into a ring resonator.

摘要翻译： 为了延长稳定运行的温度范围而不跳频，获得稳定的激光振荡，提供激光振荡器。 激光振荡器包括：入射到第一端口的光从第二端口退出的光循环器，从第三端口退出入射在第二端口上的光，并且从第一端口退出入射到第四端口的光; 第一光放大光纤，其由于被激发光激发而放大从第三端口退出的光并将其注入第一端口; 反射光学滤光器，其反射从第二端口退出的光中具有预定波长的光，并再次将其注入第二端口; 以及产生激发光以激发第一光放大光纤的泵浦光源。 反射型滤光器在由包括第一光放大光纤，光循环器和反射滤光器的环形谐振器中透射由激光振荡的光，并输出。 泵浦光源将来自第四端口的激发光注入环形谐振器。

公开(公告)号：US20070242346A1

公开(公告)日：2007-10-18

申请号：US11657410

申请日：2007-01-24

申请人： Kazunori Shiota ,  Shin Masuda ,  Masataka Nakazawa ,  Masato Yoshida

发明人： Kazunori Shiota ,  Shin Masuda ,  Masataka Nakazawa ,  Masato Yoshida

IPC分类号： H01S3/00

CPC分类号： H01S3/06791 ,  H01S3/0675 ,  H01S3/08 ,  H01S3/094042 ,  H01S3/1109 ,  H01S3/1118

摘要： To extend the temperature range for a stable operation without mode hopping and obtain a stable laser oscillation, a laser oscillator is provided. The laser oscillator includes: an optical circulator in which light incident on a first port is exited from the second port, light incident on the second port is exited from a third port, and light incident on a fourth port is exited from the first port; a first optical amplification fiber that amplifies the light exited from the third port because of being excited by an exciting light and injects the same into the first port; a reflective optical filter that reflects light with a predetermined wavelength among the light exited from the second port and injects the same into the second port again; and an pump light source that generates an exciting light to excite the first optical amplification fiber. The reflective optical filter transmits light oscillated by laser in a ring resonator including the first optical amplification fiber, the optical circulator and the reflective optical filter and outputs the same. The pump light source injects the exciting light from the fourth port into a ring resonator.

摘要翻译： 为了延长稳定运行的温度范围而不跳频，获得稳定的激光振荡，提供激光振荡器。 激光振荡器包括：入射到第一端口的光从第二端口退出的光循环器，从第三端口退出入射在第二端口上的光，并且从第一端口退出入射到第四端口的光; 第一光放大光纤，其由于被激发光激发而放大从第三端口退出的光并将其注入第一端口; 反射光学滤光器，其反射从第二端口退出的光中具有预定波长的光，并再次将其注入第二端口; 以及产生激发光以激发第一光放大光纤的泵浦光源。 反射型滤光器在由包括第一光放大光纤，光循环器和反射滤光器的环形谐振器中透射由激光振荡的光，并输出。 泵浦光源将来自第四端口的激发光注入环形谐振器。

公开(公告)号：US09228698B2

公开(公告)日：2016-01-05

申请号：US13818123

申请日：2011-08-11

申请人： Kazunori Shiota ,  Eiji Kato

发明人： Kazunori Shiota ,  Eiji Kato

IPC分类号： A61N5/06 ,  F21K2/00 ,  G02F1/35 ,  G02F1/365 ,  G02F1/37

CPC分类号： F21K2/00 ,  G02F1/353 ,  G02F1/365 ,  G02F2001/374 ,  G02F2203/13

摘要： An electromagnetic wave emission device includes a nonlinear crystal which receives exciting light Lp having two wavelength components λ1 and λ2, and outputs terahertz waves L1-L6, a total reflection layer which is in contact with the nonlinear crystal, and totally reflects the terahertz waves L2, L4, and L6 output from the nonlinear crystal, a substrate which mounts the total reflection layer, and top clads which are placed on an opposing surface of the nonlinear crystal, and transmit the terahertz waves L1-L6.

摘要翻译： 电磁波发射装置包括：非线性晶体，其接收具有两个波长分量λ1和λ2的激发光Lp，并输出与非线性晶体接触的全反射层的太赫兹波L1-L6，并且全反射太赫兹波L2 从非线性晶体输出的L4和L6，安装全反射层的基板和放置在非线性晶体的相对表面上的顶层，并传输太赫兹波L1-L6。

公开(公告)号：US06535331B2

公开(公告)日：2003-03-18

申请号：US09761991

申请日：2001-01-16

申请人： Kazunori Shiota ,  Eiji Kanoh

发明人： Kazunori Shiota ,  Eiji Kanoh

IPC分类号： H01S314

CPC分类号： H04B10/2935 ,  H01S3/06758

摘要： A wideband optical amplifier for amplifying an input optical signal of known wavelength in one of at least two bands of wavelength has a significantly small number of optical components and thus is low cost. The wideband optical amplifier includes: a first set of a first optical coupler, a first pump light source, and a first erbium doped optical fiber (EDF) which is excited by the first pump light source; an optical switch for changing an output signal of the first set; and a second set of a second optical coupler, a second pump light source, and a second EDF which is excited by the second pump light source. The first set amplifies a first band of optical signal while a series connection of the first set and the second set amplifies a second band of optical signal. In another aspect, a wideband variable wavelength optical source is achieved by utilizing the wideband optical amplifier described above within a closed loop.

摘要翻译： 用于放大至少两个波长波段中已知波长的输入光信号的宽带光放大器具有非常少数量的光学部件，因而成本低。 宽带光放大器包括：由第一泵浦光源激发的第一组第一光耦合器，第一泵浦光源和第一掺铒光纤（EDF）; 用于改变第一组的输出信号的光学开关; 以及由第二泵浦光源激励的第二组第二光耦合器，第二泵浦光源和第二EDF。 第一组放大第一频带的光信号，而第一组和第二组的串联连接放大第二频带的光信号。 另一方面，宽带可变波长光源通过利用上述在闭环内的宽带光放大器实现。