公开(公告)号：US11817670B2

公开(公告)日：2023-11-14

申请号：US16561968

申请日：2019-09-05

申请人： IPG PHOTONICS CORPORATION

发明人： Andrey Bordenyuk ,  Dmitry Pestov ,  Vadim Lozovoy ,  Igor Samartsev

IPC分类号： H01S3/067 ,  H01S3/00 ,  H01S3/08 ,  H01S3/1106 ,  G02F1/00 ,  G02F1/01 ,  G02F1/11 ,  G02F1/33

CPC分类号： H01S3/06725 ,  G02F1/00 ,  G02F1/01 ,  G02F1/11 ,  G02F1/113 ,  G02F1/33 ,  H01S3/0057 ,  H01S3/06716 ,  H01S3/08013 ,  H01S3/1106 ,  G02F2203/12 ,  G02F2203/25 ,  G02F2203/26 ,  H01S3/06704

摘要： A pulse configurable laser unit is an environmentally stable, mechanically robust, and maintenance-free ultrafast laser source for low-energy industrial, medical and analytical applications. The key features of the laser unit are a reliable, self-starting fiber oscillator and an integrated programmable pulse shaper. The combination of these components allows taking full advantage of the laser's broad bandwidth ultrashort pulse duration and arbitrary waveform generation via spectral phase manipulation. The source can routinely deliver near-TL, sub-60 fs pulses with megawatt-level peak power. The output pulse dispersion can be tuned to pre-compensate phase distortions down the line as well as to optimize the pulse profile for a specific application.

公开(公告)号：US09217908B2

公开(公告)日：2015-12-22

申请号：US14250636

申请日：2014-04-11

申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.

发明人： Naoya Kono

IPC分类号： G02F1/035 ,  G02F1/225 ,  G02F1/21

CPC分类号： G02F1/225 ,  G02F1/2255 ,  G02F1/2257 ,  G02F2001/212 ,  G02F2203/19 ,  G02F2203/20 ,  G02F2203/25 ,  H04B10/5053 ,  H04B10/50572 ,  H04B10/50575

摘要： An optical modulator includes main input and output ports; first and second Mach-Zehnder modulators; a first branching waveguide optically coupling the main input port to the first and second Mach-Zehnder modulators; a first driver circuit connected to the first Mach-Zehnder modulator, the first driver circuit generating a first drive signal having a first amplitude at a first bias point; and a second driver circuit connected to the second Mach-Zehnder modulator, the second driver circuit generating a second drive signal having a second amplitude at a second bias point. The first and second drive signals satisfy at least one of a first condition and a second condition. The first condition is that the first amplitude differs from the second amplitude. The second condition is that the first bias point differs from the second bias point.

摘要翻译： 光调制器包括主输入和输出端口; 第一和第二马赫 - 曾德调制器; 第一分支波导将主输入端口光耦合到第一和第二马赫 - 曾德调制器; 连接到第一马赫 - 策德尔调制器的第一驱动器电路，第一驱动电路产生在第一偏置点处具有第一幅度的第一驱动信号; 以及连接到第二马赫 - 策德尔调制器的第二驱动电路，所述第二驱动电路在第二偏置点处产生具有第二幅度的第二驱动信号。 第一和第二驱动信号满足第一条件和第二条件中的至少一个。 第一个条件是第一幅度与第二幅度不同。 第二个条件是第一偏置点与第二偏置点不同。

公开(公告)号：US08891566B2

公开(公告)日：2014-11-18

申请号：US13329595

申请日：2011-12-19

申请人： Kendall L. Belsley

发明人： Kendall L. Belsley

IPC分类号： H01S3/10 ,  H01S3/00 ,  G01S7/484 ,  G01S17/10 ,  H01S3/11 ,  H01S3/23 ,  H01S3/106 ,  G02F1/11

CPC分类号： G01S7/484 ,  G01S17/102 ,  G02F1/11 ,  G02F2203/15 ,  G02F2203/25 ,  H01S3/0057 ,  H01S3/1062 ,  H01S3/1103 ,  H01S3/235

摘要： A system and method for controllably chirping electromagnetic radiation from a radiation source includes an optical cavity arrangement. The optical cavity arrangement enables electromagnetic radiation to be produced with a substantially linear chirp rate and a configurable period. By selectively injecting electromagnetic radiation into the optical cavity, the electromagnetic radiation may be produced with a single resonant mode that is frequency shifted at the substantially linear chirp rate. Producing the electromagnetic radiation with a single resonant mode may increase the coherence length of the electromagnetic radiation, which may be advantageous when the electromagnetic radiation is implemented in various applications. For example, the electromagnetic radiation produced by the optical cavity arrangement may enhance a range, speed, accuracy, and/or other aspects of a laser radar system.

摘要翻译： 用于从辐射源可控地啁啾电磁辐射的系统和方法包括光腔布置。 光腔布置使得能够以基本上线性的啁啾率和可配置的周期产生电磁辐射。 通过选择性地将电磁辐射注入到光腔中，电磁辐射可以以基本线性啁啾率频移的单谐振模式产生。 用单一谐振模式产生电磁辐射可以增加电磁辐射的相干长度，这在各种应用中实现电磁辐射时可能是有利的。 例如，由光学腔装置产生的电磁辐射可以增强激光雷达系统的范围，速度，精度和/或其他方面。

公开(公告)号：US08446591B2

公开(公告)日：2013-05-21

申请号：US12921833

申请日：2008-03-13

申请人： Tetsuya Kawanishi ,  Shinya Nakajima ,  Satoshi Shinada

发明人： Tetsuya Kawanishi ,  Shinya Nakajima ,  Satoshi Shinada

IPC分类号： G01N21/55 ,  G01B9/02 ,  H04B10/04 ,  H04B10/12

CPC分类号： G01B9/02 ,  G01M11/00 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/18 ,  G02F2203/25 ,  G02F2203/69

摘要： ProblemsTo provide a method for evaluating characteristics of MZ interferometers in an optical modulator having a plurality of MZ interferometers.Means for Solving ProblemsWhen an optical modulator includes a plurality of MZ interferometers, the 0-degree component contains a signal derived from an MZ interferometer other than the MZ interferometers for evaluating the characteristic. For this, it is impossible to accurately evaluate the characteristic of the MZ interferometers. The present invention does not use the 0-degree component normally having the highest intensity. That is, the characteristic of the MZ interferometers are evaluated by using a side band intensity of the component other than the 0-degree component.

摘要翻译： 问题提供一种用于评估具有多个MZ干涉仪的光调制器中的MZ干涉仪的特性的方法。 解决问题的手段当光调制器包括多个MZ干涉仪时，0度分量包含从用于评估特性的MZ干涉仪以外的MZ干涉仪导出的信号。 为此，不可能准确地评估MZ干涉仪的特性。 本发明不使用通常具有最高强度的0度组分。 也就是说，通过使用除了0度分量之外的分量的边带强度来评估MZ干涉仪的特性。

公开(公告)号：US07911675B2

公开(公告)日：2011-03-22

申请号：US12253286

申请日：2008-10-17

申请人： Yasunori Miyazaki

发明人： Yasunori Miyazaki

IPC分类号： G02F1/01 ,  G02F1/03 ,  G02F1/29

CPC分类号： G02F1/225 ,  G02F2203/25

摘要： An optical modulation device includes: an optical splitter for splitting input light into a first input beam and a second input beam; an optical intensity modulator for modulating the intensity of the first input beam in response to a modulating signal; a variable optical phase shifter for shifting the phase of the second input beam; and an optical combiner for combining an output beam of the optical intensity modulator and an output beam of the variable optical phase shifter into a combined beam and outputting the combined beam. The amount of phase shift produced by the variable optical phase shifter is externally controlled.

摘要翻译： 光调制装置包括：分光器，用于将输入光分成第一输入光束和第二输入光束; 光强度调制器，用于响应于调制信号调制第一输入光束的强度; 用于移动第二输入光束的相位的可变光学移相器; 以及光合成器，用于将光强度调制器的输出光束和可变光移相器的输出光束组合成组合光束并输出组合光束。 由可变光学移相器产生的相移量由外部控制。

公开(公告)号：US07831113B1

公开(公告)日：2010-11-09

申请号：US12248667

申请日：2008-10-09

申请人： Monica Minden

发明人： Monica Minden

IPC分类号： G02F1/295 ,  H04B10/04

CPC分类号： G02F1/3134 ,  G02F2203/25

摘要： An optical pulse position modulator includes a substrate with parallel first and second sides, the substrate including a first waveguide channel and a parallel second waveguide channel orthogonal to the first and second sides, a linear chirped grating orthogonal to and upon the first and second waveguide channels, and at least a first electrode along the first waveguide channel to apply a voltage modulation thereto. A first optical circulator has a first port coupled to a pulsed optical carrier signal, and a second port coupled to the first waveguide channel on the first side of the substrate, and a second optical circulator has a fourth port coupled to the third port of the first optical circulator, and a fifth port coupled to the second waveguide channel on the second side of the substrate. An output of the second waveguide channel is a position modulated optical pulse signal.

摘要翻译： 光脉冲位置调制器包括具有平行的第一和第二侧面的衬底，所述衬底包括与第一和第二侧正交的第一波导通道和平行的第二波导通道，与第一和第二波导通道正交的线性啁啾光栅 以及沿着第一波导通道的至少第一电极，以对其施加电压调制。 第一光学循环器具有耦合到脉冲光载波信号的第一端口和耦合到衬底的第一侧上的第一波导通道的第二端口，并且第二光学循环器具有耦合到第二端口的第三端口的第四端口 第一光循环器和耦合到衬底第二侧上的第二波导通道的第五端口。 第二波导通道的输出是位置调制的光脉冲信号。

公开(公告)号：US20060120655A1

公开(公告)日：2006-06-08

申请号：US11330235

申请日：2006-01-12

申请人： Robert Walker

发明人： Robert Walker

IPC分类号： G02F1/295 ,  G02B6/42 ,  G02B6/26

CPC分类号： G02F1/0123 ,  G02F1/225 ,  G02F1/2255 ,  G02F1/2257 ,  G02F2001/212 ,  G02F2203/25

摘要： An optical modulator for producing a modulated optical output having a pre-determined frequency chirp is provided. The optical modulator includes an optical splitting device configured to receive and split an optical input signal to be modulated into two optical signals to pass along two waveguide arms made of electro-optic material and an optical combining device configured to receive and combine the two optical signals into said modulated optical output. At least one electrode pair is associated with each waveguide arm, and is electrically connected in series such as to modulate the phase of said optical signals in antiphase in response to a single electrical signal applied thereto. The modulator further includes a capacitive element connected to the electrode pair of one arm such as to modify the division of the single electrical signal such that the magnitude of the electrical signal across the electrode pair of one arm is different to that across the electrode pair of the other arm, thereby imparting the pre-determined frequency chirp in the modulated optical output.

摘要翻译： 提供了一种用于产生具有预定频率啁啾的调制光输出的光调制器。 光调制器包括光分离装置，其被配置为接收和分离待调制的光输入信号以两个光信号通过由电光材料制成的两个波导臂，以及配置成接收和组合两个光信号 进入所述调制光输出。 至少一个电极对与每个波导臂相关联，并且串联电连接，以响应于施加到其上的单个电信号来反相地调制所述光信号的相位。 调制器还包括连接到一个臂的电极对的电容元件，以便修改单个电信号的划分，使得跨越电极对的一个电极对的电信号的幅度不同于电极对的电极对 从而在调制光输出中赋予预定频率啁啾。

公开(公告)号：US06978055B2

公开(公告)日：2005-12-20

申请号：US10234463

申请日：2002-09-05

申请人： Yasunori Miyazaki

发明人： Yasunori Miyazaki

IPC分类号： G02F1/015 ,  G02F1/017 ,  G02F1/035

CPC分类号： B82Y20/00 ,  G02F1/01708 ,  G02F2001/0157 ,  G02F2001/01758 ,  G02F2001/01766 ,  G02F2203/25

摘要： An optical modulator with lowered chirping without deterioration of extinction characteristic. An intermediate layer is interposed between a well layer and an n-side barrier layer and tensile strain is produced in the well layer. A relationship Ew

摘要翻译： 具有降低啁啾的光学调制器，而不会消失特性。 在阱层和n侧阻挡层之间插入中间层，并且在阱层中产生拉伸应变。 在阻挡层的带隙能量Eb（eV），阱层的带隙能量Ew（eV）和中间层的带隙能量Em（eV）之间建立关系Ew