公开(公告)号：US20170125964A1

公开(公告)日：2017-05-04

申请号：US15310506

申请日：2015-05-12

Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. ,  MAX-PLANCK-GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN E.V.

Inventor： PETER RUSSBUELDT ,  JOHANNES WEITENBERG ,  ANDREAS VERNALEKEN ,  THOMAS SARTORIUS ,  JAN SCHULTE

IPC: H01S3/00 ,  G02F1/35

CPC classification number: H01S3/0092 ,  G02F1/3511 ,  G02F2001/3503 ,  G02F2201/17 ,  H01S3/0057

Abstract: A method and an arrangement of spectrally broadening laser pulses for non-linear pulse compression is disclosed which is based on the transition from the spectral broadening in a waveguide to the spectral broadening in a suitably shaped lens conductor. The arrangement is non-sensitive with respect to the variations of the pulse power, the position and parameters of the laser beam. The spectrally broadened pulses can be compressed in a satisfactory manner and the quality of the laser beam maintained by dividing the non-linear phase required for spectral broadening into sufficiently smaller steps which can be separated without non-linearity by suitable prorogation. The limitation of the pulse powers to less than the critical power of dielectrics is thus overcome and a pulse energy range for which the spectral broadening in the glass fibres cannot be used, is developed. The arrangement can compress pulses having a large average power.

公开(公告)号：US20160334691A1

公开(公告)日：2016-11-17

申请号：US14545504

申请日：2015-05-13

Applicant: Eli Margalith

Inventor： Eli Margalith

IPC: G02F1/355 ,  G02F1/39

CPC classification number: G02F1/3551 ,  G02F1/39 ,  G02F2001/392 ,  G02F2201/17

Abstract: An Optical Parametric Oscillator (OPO) that includes optical elements located and oriented to form a non-planer, image-rotating ring cavity. To provide a high quality well shaped output beam, the OPO comprises a plurality of reflecting surfaces, designed to rotate the resonating beam by 90 degrees for each round trip in the cavity. Preferred embodiments include a first non-linear crystals and a similar second non-linear crystal mounted side-by-side on a single rotating stage. To minimize the adverse effects of walk-off, a reflecting unit is positioned to cause the output of the first crystal to be reflected into the second crystal. The two crystals are aligned so as to cause walk-off produced in the first of the two crystals to be cancelled by opposite walk-off produced in the second crystal.

Abstract translation: 光学参数振荡器（OPO），其包括位于并定向成形成非平面图像旋转环形腔的光学元件。 为了提供高质量的良好的输出光束，OPO包括多个反射表面，设计成使谐振光束在空腔中每次往返旋转90度。 优选实施例包括在单个旋转台上并排安装的第一非线性晶体和类似的第二非线性晶体。 为了最小化脱落的不利影响，反射单元被定位成使得第一晶体的输出被反射到第二晶体中。 这两个晶体排列成使得在两个晶体中的第一个晶体中产生的散射通过在第二晶体中产生的相反的偏移来抵消。

公开(公告)号：US09146442B2

公开(公告)日：2015-09-29

申请号：US14481498

申请日：2014-09-09

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Jun-ichi Hashimoto

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

CPC classification number: G02F1/225 ,  G02F1/035 ,  G02F2001/212 ,  G02F2201/17 ,  G02F2201/34

Abstract: A Mach-Zehnder interferometer type optical modulator includes a first end facet and a reflecting portion opposing the first end facet; a single optical coupler including input and output ports, the optical coupler being disposed between the first end facet and the reflecting portion; first and second optical waveguides that are connected to the input ports of the optical coupler; third and fourth optical waveguides that are connected to the output ports of the optical coupler; and a phase shifting section disposed between the optical coupler and the reflecting portion. The phase shifting section includes a first optical waveguide structure constituting part of the third optical waveguide; a first upper electrode on the first optical waveguide structure; a second optical waveguide structure constituting part of the fourth optical waveguide; and a second upper electrode on the second optical waveguide structure.

Abstract translation: 马赫 - 曾德干涉仪型光调制器包括第一端面和与第一端面相对的反射部分; 包括输入和输出端口的单个光耦合器，所述光耦合器设置在所述第一端面与所述反射部分之间; 第一和第二光波导，其连接到光耦合器的输入端口; 第三和第四光波导，其连接到光耦合器的输出端口; 以及设置在光耦合器和反射部分之间的相移部分。 相移部分包括构成第三光波导的一部分的第一光波导结构; 第一光波导结构上的第一上电极; 构成第四光波导的一部分的第二光波导结构; 和在第二光波导结构上的第二上电极。

公开(公告)号：US08797641B2

公开(公告)日：2014-08-05

申请号：US13390746

申请日：2010-07-08

Applicant: Masatoshi Fujimoto ,  Yoichi Kawada ,  Kodai Fukazawa

Inventor： Masatoshi Fujimoto ,  Yoichi Kawada ,  Kodai Fukazawa

IPC: H01S3/10

CPC classification number: H01S3/0057 ,  G02B17/023 ,  G02B27/1093 ,  G02F2201/17 ,  G02F2201/305 ,  G02F2203/26 ,  H01S3/067 ,  H01S3/094053 ,  H01S3/1112 ,  H01S3/1618 ,  H01S3/2308

Abstract: An input light pulse Pi, input at a constant incident angle to a transmission-type diffraction grating 20, is dispersed according to the wavelengths to be output at output angles according to the wavelengths, to be reflected by reflecting mirrors 41, 42, and 43 in series, and thereafter, the light rays are input at incident angles according to their wavelengths to the transmission-type diffraction grating 20, to be output at a constant output angle from the transmission-type diffraction grating 20. The optical path for the light rays of respective wavelength components, output at the constant output angle from the transmission-type diffraction grating 20, is folded back by a rectangular prism 40, to be input at a constant incident angle to the transmission-type diffraction grating 20, and the light rays are output at output angles according to their wavelengths, to be reflected by the reflecting mirrors 43, 42, and 41 in series, and are thereafter input at incident angles according to their wavelengths to the transmission-type diffraction grating 20. The light rays, input at the incident angles according to their wavelengths to the transmission-type diffraction grating 20, are coupled by the transmission-type diffraction grating 20, to be output as an output light pulse Po. Thereby, realizing the pulse width conversion device and the optical amplifier system, which are easily downsized.

Abstract translation: 以与透射型衍射光栅20恒定的入射角输入的输入光脉冲Pi根据要输出的波长根据波长被输出，由反射镜41,42和43反射 然后将光线根据其波长以入射角输入到透射型衍射光栅20，以从透射型衍射光栅20以恒定的输出角输出。光的光路 从透射型衍射光栅20以恒定的输出角输出的各波长分量的光线被矩形棱镜40折回，以与透射型衍射光栅20以恒定的入射角输入，并且光 射线根据其波长以输出角输出，被反射镜43,44和41串联反射，然后按照入射角按照 它们到透射型衍射光栅20的波长。根据其对透射型衍射光栅20的波长的入射角输入的光线通过透射型衍射光栅20耦合，输出为输出 光脉Po。 从而实现容易缩小的脉宽转换装置和光放大器系统。

公开(公告)号：US20140104560A1

公开(公告)日：2014-04-17

申请号：US14055171

申请日：2013-10-16

Applicant: InLC Technology, Inc.

Inventor： Seong Woo SUH

IPC: G02B6/293

CPC classification number: G02B6/293 ,  G02B6/2931 ,  G02F1/0136 ,  G02F1/31 ,  G02F2001/136281 ,  G02F2201/17 ,  G02F2201/34 ,  G02F2203/055 ,  G02F2203/07 ,  G02F2203/58 ,  H04Q11/0005 ,  H04Q2011/0026 ,  H04Q2011/0035 ,  H04Q2213/13003

Abstract: A wavelength selective switch (WSS) apparatus is disclosed, which includes: a liquid crystal on silicon (LCOS) phase array configured for selectively diverting a certain wavelength component of light beams to continue to propagate and keeping another wavelength component of the light beams from propagating by controlling a voltage applied thereto and/or a polarization of the light beams, the LCOS phase array being provided with a first liquid crystal (LC) domain, a second liquid crystal (LC) domain, and a reflection component, the reflection component being configured to reflect a light beam input through the first LC domain back to the first LC domain and reflect a light beam input through the second LC domain back to the second LC domain; and a reflective element that is arranged to reflect the light beams output from the LCOS phase array back to the LCOS phase array.

Abstract translation: 公开了一种波长选择开关（WSS）装置，其包括：液晶硅（LCOS）相阵列，其被配置为选择性地转移光束的某一波长分量以继续传播并保持光束的另一波长分量不被传播 通过控制施加到其上的电压和/或光束的偏振，LCOS相位阵列设置有第一液晶（LC）域，第二液晶（LC）域和反射分量，反射分量为 被配置为将通过第一LC域输入的光束反射回第一LC域并将通过第二LC域输入的光束反射回第二LC域; 以及被布置为将从LCOS相位阵列输出的光束反射回到LCOS相位阵列的反射元件。

公开(公告)号：US08675708B2

公开(公告)日：2014-03-18

申请号：US13813810

申请日：2011-08-03

Applicant: Yosuke Honda ,  Junji Urakawa

Inventor： Yosuke Honda ,  Junji Urakawa

IPC: H01S3/067 ,  H01S3/13 ,  H01S3/23 ,  H05G2/00

CPC classification number: H01S3/06791 ,  G02F1/21 ,  G02F2201/17 ,  H01S3/06712 ,  H01S3/07 ,  H01S3/082 ,  H01S3/094007 ,  H01S3/10007 ,  H01S3/105 ,  H01S3/108 ,  H01S3/1109 ,  H01S3/1121 ,  H01S3/1305 ,  H01S3/1307 ,  H01S3/1618 ,  H01S3/2308 ,  H05G2/00

Abstract: Provided is a laser oscillation apparatus capable of stabilizing resonance even when finesse of an optical resonator is increased and generating stronger laser light than that of a traditional apparatus by accumulating laser light in the optical resonator. The laser oscillation apparatus includes a laser light source which generates laser light for excitation, a fiber amplifier which generates laser light with a desired wavelength when the laser light generated at the laser light source for excitation is supplied, an optical resonator, an optical isolator which is interposed between the optical resonator and the fiber amplifier and which guides the laser light from the fiber amplifier to one side of the optical resonator while blocking laser light in the opposite direction, a circulation optical path which accelerates resonance as introducing laser light emitted from the other side of the optical resonator and returning the laser light to the optical resonator via the fiber amplifier and the optical isolator, and a modulator which performs amplitude modulation on the laser light in the circulation optical path.

Abstract translation: 提供了即使在光谐振器的精细度增加并且通过在光谐振器中积聚激光而产生比传统装置的激光更强的激光的情况下也能够稳定谐振的激光振荡装置。 激光振荡装置包括激光产生激光的激光光源，在供给激光激光光源时产生的激光产生期望波长的激光的光纤放大器，光谐振器，光隔离器 插入在光谐振器和光纤放大器之间，并且将来自光纤放大器的激光引导到光学谐振器的一侧，同时沿相反方向阻挡激光，循环光路加速谐振，从而引入从 光谐振器的另一侧，并且通过光纤放大器和光隔离器将激光返回到光谐振器，以及对循环光路中的激光进行调幅的调制器。

公开(公告)号：US20130230066A1

公开(公告)日：2013-09-05

申请号：US13861576

申请日：2013-04-12

Applicant: FUJI ELECTRIC CO., LTD.

Inventor： Masanori OTO

IPC: H01S3/1055

CPC classification number: H01S3/1055 ,  G01D5/35316 ,  G02B6/022 ,  G02F1/0134 ,  G02F1/37 ,  G02F1/39 ,  G02F2201/16 ,  G02F2201/17 ,  G02F2201/346

Abstract: In aspects of the invention, wavelength conversion element has a harmonic generation portion and a parametric oscillation portion. The harmonic generation portion generates a harmonic of laser light output from a laser light source. The parametric oscillation portion generates signal light and idler light from the harmonic generated by the harmonic generation portion. In some aspects of the invention, electrodes and a first voltage control portion control the intensity of the harmonic generated by the harmonic generation portion. A first FBG (Fiber Bragg Grating) and a second FBG cause resonance of signal light output from the parametric oscillation portion. A piezo tube and a second voltage control portion change the resonance frequency of the first FBG and the second FBG.

Abstract translation: 在本发明的方面中，波长转换元件具有谐波产生部分和参数振荡部分。 谐波产生部分产生从激光源输出的激光的谐波。 参数振荡部分由谐波产生部分产生的谐波产生信号光和惰轮。 在本发明的一些方面中，电极和第一电压控制部分控制由谐波产生部分产生的谐波的强度。 第一FBG（光纤布拉格光栅）和第二FBG引起从参量振荡部分输出的信号光的共振。 压电管和第二电压控制部改变第一FBG和第二FBG的谐振频率。

公开(公告)号：US20130128340A1

公开(公告)日：2013-05-23

申请号：US13634437

申请日：2011-05-10

Applicant: Cameron Francis Rae ,  Malcolm Harry Dunn ,  David Alan Walsh

Inventor： Cameron Francis Rae ,  Malcolm Harry Dunn ,  David Alan Walsh

IPC: G02F1/39

CPC classification number: G02F1/39 ,  G02F1/3544 ,  G02F1/3558 ,  G02F2201/17 ,  G02F2201/30

Abstract: An optical parametric device comprising a slant-stripe periodically poled nonlinear material that is operable to generate signal in response to interaction with a pump wave, the non-linear interaction being such that the pump and idler waves are collinear and the signal wave is non-collinear relative to the pump and idler waves, wherein the slant-stripe non-linear material is able to generate two idler waves and two signal waves, and the device is adapted to allow for the selection and output coupling of a required one of the two signal waves.

Abstract translation: 一种光学参数装置，包括斜条周期极化非线性材料，其可操作以响应于与泵波的相互作用而产生信号，所述非线性相互作用使得所述泵和惰轮波共线，并且所述信号波是非线性的， 相对于泵和空载波共线，其中斜条非线性材料能够产生两个惰轮和两个信号波，并且该装置适于允许选择和输出两个所需的一个 信号波。

公开(公告)号：US20120206792A1

公开(公告)日：2012-08-16

申请号：US13371815

申请日：2012-02-13

Applicant: Peter Powers

Inventor： Peter Powers

IPC: G02F1/39

CPC classification number: G02F1/39 ,  G02F1/353 ,  G02F2201/17

Abstract: Tunable light sources having a single optical parametric generation (OPG) source that results in an amplified, narrow bandwidth seed beam and methods of tuning therewith are disclosed. The tunable light source may include a polarization rotator to rotate a pump beam before a first pass through an OPG, and a linear-to-circular polarization device to polarize the pump beam directed back toward the OPG for a second pass therethrough. Alternately, the tunable light source may include an OPG source through which a pump beam passes only in the first direction, a separator that separates a signal beam from the pump beam exiting from the OPG, a narrowband wavelength filter that receives the signal beam and generate a seed beam, and a reflecting surface that directs the seed beam back through the OPG (opposite the first direction) to seed the back part of the pulse of the pulse laser.

Abstract translation: 公开了具有导致放大的窄带宽种子束的单个光学参数产生（OPG）源的可调谐光源和其调谐方法。 可调谐光源可以包括偏振旋转器，以在第一次通过OPG之前旋转泵浦光束;以及线性至圆形偏振装置，以使朝向OPG的泵浦光束偏振以进行第二次通过。 或者，可调谐光源可以包括泵浦光束仅沿第一方向通过的OPG源，将信号光束从与OPG离开的泵浦光束分离的分离器，窄带波长滤波器，其接收信号光束并产生 种子束和反射表面，其将种子束引导通过OPG（与第一方向相反），以使脉冲激光器的脉冲的后部部分入种。

公开(公告)号：US20120147457A1

公开(公告)日：2012-06-14

申请号：US13390746

申请日：2010-07-08

Applicant: Masatoshi Fujimoto ,  Yoichi Kawada ,  Kodai Fukazawa

Inventor： Masatoshi Fujimoto ,  Yoichi Kawada ,  Kodai Fukazawa

IPC: H01S3/13 ,  G02B27/44 ,  G02B27/00

CPC classification number: H01S3/0057 ,  G02B17/023 ,  G02B27/1093 ,  G02F2201/17 ,  G02F2201/305 ,  G02F2203/26 ,  H01S3/067 ,  H01S3/094053 ,  H01S3/1112 ,  H01S3/1618 ,  H01S3/2308

Abstract: An input light pulse Pi, input at a constant incident angle to a transmission-type diffraction grating 20, is dispersed according to the wavelengths to be output at output angles according to the wavelengths, to be reflected by reflecting mirrors 41, 42, and 43 in series, and thereafter, the light rays are input at incident angles according to their wavelengths to the transmission-type diffraction grating 20, to be output at a constant output angle from the transmission-type diffraction grating 20. The optical path for the light rays of respective wavelength components, output at the constant output angle from the transmission-type diffraction grating 20, is folded back by a rectangular prism 40, to be input at a constant incident angle to the transmission-type diffraction grating 20, and the light rays are output at output angles according to their wavelengths, to be reflected by the reflecting mirrors 43, 42, and 41 in series, and are thereafter input at incident angles according to their wavelengths to the transmission-type diffraction grating 20. The light rays, input at the incident angles according to their wavelengths to the transmission-type diffraction grating 20, are coupled by the transmission-type diffraction grating 20, to be output as an output light pulse Po. Thereby, realizing the pulse width conversion device and the optical amplifier system, which are easily downsized.

Abstract translation: 以与透射型衍射光栅20恒定的入射角输入的输入光脉冲Pi根据要输出的波长根据波长被输出，由反射镜41,42和43反射 然后将光线根据其波长以入射角输入到透射型衍射光栅20，以从透射型衍射光栅20以恒定的输出角输出。光的光路 从透射型衍射光栅20以恒定的输出角输出的各波长分量的光线被矩形棱镜40折回，以与透射型衍射光栅20以恒定的入射角输入，并且光 射线根据其波长以输出角输出，被反射镜43,44和41串联反射，然后按照入射角按照 它们到透射型衍射光栅20的波长。根据其对透射型衍射光栅20的波长的入射角输入的光线通过透射型衍射光栅20耦合，输出为输出 光脉Po。 从而实现容易缩小的脉宽转换装置和光放大器系统。