公开(公告)号：US20140247841A1

公开(公告)日：2014-09-04

申请号：US13783172

申请日：2013-03-01

Applicant: Princeton Optronics Inc.

Inventor： Jean-Francois Seurin ,  Qing Wang ,  Laurence Watkins ,  Chuni Lal Ghosh

IPC: H01S3/067

CPC classification number: H01S5/50 ,  H01S3/0675 ,  H01S3/06754 ,  H01S3/091 ,  H01S3/094007 ,  H01S3/094053 ,  H01S3/09415 ,  H01S3/10 ,  H01S3/1068 ,  H01S3/11 ,  H01S3/235 ,  H01S5/005 ,  H01S5/02208 ,  H01S5/02284 ,  H01S5/026 ,  H01S5/141 ,  H01S5/183 ,  H01S5/18305 ,  H01S5/4012 ,  H01S5/423

Abstract: Optical pump modules comprising VCSEL and VCSEL array devices provide high optical power for configuring fiber optic gain systems such as fiber laser and fiber amplifier particularly suited for high power operation. Pump modules may be constructed using two reflector or three reflector VCSEL devices optionally integrated with microlens arrays and other optical components, to couple high power pump beams to a fiber output port. The pump module having a fiber output port is particularly suited to couple light to an inner cladding of a double-clad fiber, often used to configure high power fiber laser and fiber amplifier. The pump modules may be operated in CW, QCW and pulse modes to configure fiber lasers and amplifiers using single end, dual end, and regenerative optical pumping modes. Multiple-pumps may be combined to increase pump power in a modular fashion without significant distortion to signal, particularly for short pulse operation.

Abstract translation: 包括VCSEL和VCSEL阵列器件的光泵模块提供高光功率，用于配置光纤增益系统，如光纤激光器和光纤放大器，特别适用于大功率操作。 可以使用可选地与微透镜阵列和其它光学部件集成的两个反射器或三个反射器VCSEL装置来构造泵模块，以将高功率泵浦光束耦合到光纤输出端口。 具有光纤输出端口的泵模块特别适用于将光耦合到双包层光纤的内包层，通常用于配置大功率光纤激光器和光纤放大器。 泵模块可以以CW，QCW和脉冲模式运行，以使用单端，双端和再生光泵浦模式配置光纤激光器和放大器。 可以组合多泵以模块化方式增加泵功率，而不会对信号造成明显的失真，特别是对于短脉冲操作。

公开(公告)号：US08824519B1

公开(公告)日：2014-09-02

申请号：US13783172

申请日：2013-03-01

Applicant: Princeton Optronics Inc.

Inventor： Jean-Francois Seurin ,  Qing Wang ,  Laurence Watkins ,  Chuni Lal Ghosh

IPC: H01S3/30 ,  H01S3/08 ,  H01S5/00 ,  H01S3/067

CPC classification number: H01S5/50 ,  H01S3/0675 ,  H01S3/06754 ,  H01S3/091 ,  H01S3/094007 ,  H01S3/094053 ,  H01S3/09415 ,  H01S3/10 ,  H01S3/1068 ,  H01S3/11 ,  H01S3/235 ,  H01S5/005 ,  H01S5/02208 ,  H01S5/02284 ,  H01S5/026 ,  H01S5/141 ,  H01S5/183 ,  H01S5/18305 ,  H01S5/4012 ,  H01S5/423

Abstract: Optical pump modules comprising VCSEL and VCSEL array devices provide high optical power for configuring fiber optic gain systems such as fiber laser and fiber amplifier particularly suited for high power operation. Pump modules may be constructed using two reflector or three reflector VCSEL devices optionally integrated with microlens arrays and other optical components, to couple high power pump beams to a fiber output port. The pump module having a fiber output port is particularly suited to couple light to an inner cladding of a double-clad fiber, often used to configure high power fiber laser and fiber amplifier. The pump modules may be operated in CW, QCW and pulse modes to configure fiber lasers and amplifiers using single end, dual end, and regenerative optical pumping modes. Multiple-pumps may be combined to increase pump power in a modular fashion without significant distortion to signal, particularly for short pulse operation.

Abstract translation: 包括VCSEL和VCSEL阵列器件的光泵模块提供高光功率，用于配置光纤增益系统，如光纤激光器和光纤放大器，特别适用于大功率操作。 可以使用可选地与微透镜阵列和其它光学部件集成的两个反射器或三个反射器VCSEL装置来构造泵模块，以将高功率泵浦光束耦合到光纤输出端口。 具有光纤输出端口的泵模块特别适用于将光耦合到双包层光纤的内包层，通常用于配置大功率光纤激光器和光纤放大器。 泵模块可以以CW，QCW和脉冲模式运行，以使用单端，双端和再生光泵浦模式配置光纤激光器和放大器。 可以组合多泵以模块化方式增加泵功率，而不会对信号造成明显的失真，特别是对于短脉冲操作。

公开(公告)号：US20140233089A1

公开(公告)日：2014-08-21

申请号：US14090374

申请日：2013-11-26

Applicant: IMRA America, Inc.

Inventor： Martin E. Fermann ,  Ingmar Hartl ,  Gennady Imeshev

IPC: H01S3/067 ,  H01S3/10

CPC classification number: H01S3/0057 ,  G02F1/3517 ,  G02F2001/3528 ,  H01S3/0078 ,  H01S3/0092 ,  H01S3/067 ,  H01S3/0675 ,  H01S3/06754 ,  H01S3/094042 ,  H01S3/10 ,  H01S3/105 ,  H01S3/1053 ,  H01S3/106 ,  H01S3/1067 ,  H01S3/109 ,  H01S3/1106 ,  H01S3/1118 ,  H01S3/1616

Abstract: Modelocked fiber laser resonators may be coupled with optical amplifiers. An isolator optionally may separate the resonator from the amplifier. A reflective optical element on one end of the resonator having a relatively low reflectivity may be employed to couple light from the resonator to the amplifier. Enhanced pulse-width control may be provided with concatenated sections of both polarization-maintaining and non-polarization-maintaining fibers. Apodized fiber Bragg gratings and integrated fiber polarizers may also be included in the laser cavity to assist in linearly polarizing the output of the cavity. Very short pulses with a large optical bandwidth may be obtained by matching the dispersion value of the grating to the inverse of the dispersion of the intra-cavity fiber. Frequency comb sources may be constructed from such modelocked fiber oscillators. Low dispersion and an in-line interferometer that provides feedback may assist in controlling the frequency components output from the comb source.

Abstract translation: 模式锁定光纤激光谐振器可以与光放大器耦合。 隔离器可选地可以将谐振器与放大器分离。 可以采用具有相对低的反射率的谐振器的一端上的反射光学元件来将来自谐振器的光耦合到放大器。 可以提供增强的脉冲宽度控制，其具有两个偏振保持和非偏振保持光纤的级联部分。 变形光纤布拉格光栅和集成光纤偏振器也可以包括在激光腔中，以帮助线性偏振空腔的输出。 可以通过将光栅的色散值与腔内光纤的色散相反来获得具有大的光学带宽的非常短的脉冲。 频率梳源可以由这种锁模光纤振荡器构成。 提供反馈的低色散和在线干涉仪可以有助于控制从梳状源输出的频率分量。

公开(公告)号：US08780947B2

公开(公告)日：2014-07-15

申请号：US13511897

申请日：2010-11-19

Applicant: Joachim Meier ,  Ulrike Wegner ,  Maximilian Josef Lederer

Inventor： Joachim Meier ,  Ulrike Wegner ,  Maximilian Josef Lederer

IPC: H01S3/10

CPC classification number: H01S3/10 ,  G02B17/00 ,  G02B17/004 ,  G02B17/0657 ,  H01S3/07 ,  H01S3/081 ,  H01S3/0813 ,  H01S3/09415 ,  H01S3/1115

Abstract: The invention relates to a mirror arrangement for guiding a laser beam in a laser system having at least one first end mirror and one second end mirror, wherein said end mirrors define a resonator having an optical resonator axis, wherein the laser beam is guided into the resonator as an input laser beam and is guided out of the resonator again after multiple reflection at the first and second end mirrors as an output laser beam. The sequence of reflections at the first and second end mirror thereby determines a direction of rotation between the first and second end mirror, defined as an axis of rotation relative to the resonator axis, whereby a first beam path is defined and the laser beam circulates in a direction of rotation between the first and second end mirrors in the resonator defined as an axis of rotation relative to the resonator axis. The resonator is designed such that the direction of rotation is reversed at a reversing point and the laser beam in the resonator passes through at least partially in a direction of rotation opposite to the first beam path, whereby a second beam path is defined.

Abstract translation: 本发明涉及一种用于在具有至少一个第一端镜和一个第二端镜的激光系统中引导激光束的反射镜装置，其中所述端镜限定具有光谐振器轴的谐振器，其中激光束被引导到 谐振器作为输入激光束，并且在作为输出激光束的第一和第二端镜的多次反射之后再次被引导出谐振器。 因此，第一和第二端镜处的反射序列确定了第一和第二端镜之间的转动方向，其被定义为相对于谐振器轴线的旋转轴线，由此限定第一光束路径，激光束在 谐振器中的第一和第二端镜之间的旋转方向被定义为相对于谐振器轴的旋转轴。 共振器被设计成使得旋转方向在反转点处反转，并且谐振器中的激光束至少部分地沿与第一光束路径相反的旋转方向通过，从而限定第二光束路径。

公开(公告)号：US08760661B2

公开(公告)日：2014-06-24

申请号：US13463384

申请日：2012-05-03

Applicant: Meng Cui

Inventor： Meng Cui

IPC: G01J3/45

CPC classification number: H01S3/10 ,  G01J9/00 ,  H01S3/0057 ,  H01S3/10053

Abstract: An apparatus includes a spatial light modulator configured to receive an optical pulse train; and output a modulated optical pulse train; a non-linear optical system that receives the modulated optical pulse train and generates a non-linear optical signal; and a power detector that detects a power of the generated non-linear optical signal. A control system outputs a signal to the spatial light modulator to cause it to modulate the optical pulse train by modulating the spectral phase of the optical pulse at wavelengths within a current wavelength range subset and maintain the spectral phase of the optical pulse constant at wavelengths outside the current wavelength range subset; and based on the detected power, extracts values of the spectral phase for the optical pulse at wavelengths within the current wavelength range subset, the values extracted being those that compress the optical pulses.

Abstract translation: 一种装置，包括配置成接收光脉冲串的空间光调制器; 并输出调制的光脉冲串; 接收经调制的光脉冲串并产生非线性光信号的非线性光学系统; 以及检测所生成的非线性光信号的功率的功率检测器。 控制系统向空间光调制器输出信号，使其通过在当前波长范围子集内的波长处调制光脉冲的光谱相位来调制光脉冲串，并保持光脉冲的光谱相位在波长外恒定 当前波长范围子集; 并且基于检测到的功率，提取在当前波长范围子集内的波长处的光脉冲的光谱相位的值，提取的值是压缩光脉冲的值。

公开(公告)号：US08737439B2

公开(公告)日：2014-05-27

申请号：US13748026

申请日：2013-01-23

Applicant: Rafal Wilk ,  Ronald Holzwarth ,  Michael Mei

Inventor： Rafal Wilk ,  Ronald Holzwarth ,  Michael Mei

IPC: H01S3/10

CPC classification number: H01S3/10 ,  G01J3/0286 ,  G01J3/10 ,  G01J11/00 ,  G01N21/3581 ,  G01N21/636 ,  G01N2021/3595 ,  H01S5/0057

Abstract: The invention relates to an optical assembly (1) comprising a pulsed light source (2) for generating primary light pulses (4), a pulse splitter (5) for splitting said primary light pulses (4) into first and second secondary light pulses (7), and a delay element (8) for delaying said second secondary light pulses (7) relative to said first secondary light pulses (6), where the pulse repetition rate of said pulsed light source (2) is variable in order to change a temporal delay between different secondary light pulses (6,7) The invention is characterized in that said optical assembly (1) comprises a thermal insulation (12), a temperature stabilizer (16) or a temperature compensator (13) for said delay element (8) and/or a control circuit (27) for determining and controlling a drift of said pulse repetition rate.

Abstract translation: 本发明涉及一种光学组件（1），其包括用于产生初级光脉冲（4）的脉冲光源（2），用于将所述初级光脉冲（4）分成第一和第二次级光脉冲（4）的脉冲分离器（5） 7）和用于相对于所述第一次级光脉冲（6）延迟所述第二次级光脉冲（7）的延迟元件（8），其中所述脉冲光源（2）的脉冲重复率是可变的，以便改变 不同次级光脉冲之间的时间延迟（6,7）本发明的特征在于所述光学组件（1）包括用于所述延迟元件的隔热件（12），温度稳定器（16）或温度补偿器（13） （8）和/或控制电路（27），用于确定和控制所述脉冲重复率的漂移。

公开(公告)号：US08724082B2

公开(公告)日：2014-05-13

申请号：US13040535

申请日：2011-03-04

Applicant: Hiroaki Kyogoku

Inventor： Hiroaki Kyogoku

IPC: G03B27/42

CPC classification number: G03B27/52 ,  H01S3/10

Abstract: A semiconductor laser driver includes a light detection circuit to detect a quantity of light as a detected light emission intensity and output the detected light emission intensity to the control circuit, and a control circuit to control a light emission intensity for the semiconductor laser based on the detected light emission intensity and on a predetermined light emission intensity setting value. The light detection circuit includes a photoelectric conversion element to convert the quantity of light emitted from the semiconductor laser into an electrical current and output the converted electrical current, a current magnification setting circuit to amplify the electrical current output from the photoelectric conversion element to a predetermined amplified current at one of multiple different predetermined magnifications, a detection resistor to convert the amplified current output from the current magnification setting circuit into a voltage and output the voltage as the detected light emission intensity.

Abstract translation: 半导体激光驱动器包括：光检测电路，用于检测作为检测到的发光强度的光量，并将检测到的发光强度输出到控制电路;以及控制电路，用于基于所述控制电路控制半导体激光器的发光强度 检测到的发光强度和预定的发光强度设定值。 光检测电路包括光电转换元件，用于将从半导体激光器发射的光量转换成电流并输出转换的电流;电流倍率设置电路，用于将从光电转换元件输出的电流放大到预定的 在多个不同的预定放大倍数之一处的放大电流，将从当前倍率设置电路输出的放大电流转换成电压并将该电压作为检测的发光强度输出的检测电阻。

公开(公告)号：US08711896B2

公开(公告)日：2014-04-29

申请号：US12772953

申请日：2010-05-03

Applicant: Vladimir Dribinski ,  Yung-Ho Alex Chuang

Inventor： Vladimir Dribinski ,  Yung-Ho Alex Chuang

IPC: H01S3/091

CPC classification number: H01S3/10 ,  G02F1/3525 ,  H01S3/005 ,  H01S3/091

Abstract: Laser-induced damage in an optical material can be mitigated by creating conditions at which light absorption is minimized. Specifically, electrons populating defect energy levels of a band gap in an optical material can be promoted to the conduction band—a process commonly referred to as bleaching. Such bleaching can be accomplished using a predetermined wavelength that ensures minimum energy deposition into the material, ideally promoting electron to just inside the conduction band. In some cases phonon (i.e. thermal) excitation can also be used to achieve higher depopulation rates. In one embodiment, a bleaching light beam having a wavelength longer than that of the laser beam can be combined with the laser beam to depopulate the defect energy levels in the band gap. The bleaching light beam can be propagated in the same direction or intersect the laser beam.

Abstract translation: 可以通过产生光吸收最小化的条件来减轻光学材料中的激光诱导的损伤。 具体地说，填充光学材料中的带隙的缺陷能级的电子能够促进通常被称为漂白的传导带。 这样的漂白可以使用确保最小能量沉积到材料中的预定波长来实现，理想地促进电子刚好在导带内部。 在某些情况下，也可以使用声子（即热）激发来实现更高的人口流动率。 在一个实施例中，具有比激光束长的波长的波长的漂白光束可以与激光束组合以对带隙中的缺陷能级进行衰减。 漂白光束可以沿相同方向传播或与激光束相交。

公开(公告)号：US08687662B2

公开(公告)日：2014-04-01

申请号：US13896231

申请日：2013-05-16

Applicant: Anvik Corporation

Inventor： Kanti Jain

IPC: H01S3/10

CPC classification number: H01S3/10 ,  G03F7/70025 ,  G03F7/70041 ,  H01S3/005 ,  H01S3/09702 ,  H01S3/0971 ,  H01S3/2251 ,  H01S3/2308 ,  H01S3/2383

Abstract: Methods and systems for generating pulses of laser radiation at higher repetition rates than those of available excimer lasers are disclosed that use multiple electronic triggers for multiple laser units and arrange the timings of the different triggers with successive delays, each delay being a fraction of the interval between two successive pulses of a single laser unit. Methods and systems for exposing nanoscale patterns using such high-repetition-rate lasers are disclosed.

Abstract translation: 公开了用于以比可用的准分子激光器更高的重复率产生激光辐射脉冲的方法和系统，其使用多个激光单元的多个电子触发器并且以连续的延迟来布置不同触发的定时，每个延迟是间隔的一小部分 在单个激光单元的两个连续脉冲之间。 公开了使用这种高重复率激光器来暴露纳米尺度图案的方法和系统。

公开(公告)号：US08675697B2

公开(公告)日：2014-03-18

申请号：US13597556

申请日：2012-08-29

Applicant: Satoshi Tanaka ,  Hiroshi Tanaka ,  Osamu Wakabayashi

Inventor： Satoshi Tanaka ,  Hiroshi Tanaka ,  Osamu Wakabayashi

IPC: H01S3/10

CPC classification number: H01S3/10 ,  H01S3/005 ,  H01S3/08 ,  H01S3/08004 ,  H01S3/08009 ,  H01S3/105 ,  H01S3/1055 ,  H01S3/106 ,  H01S3/225 ,  H01S3/2333

Abstract: A master oscillator system may include a grating configured to function as one resonator mirror in an optical resonator, a spectral bandwidth tuning unit configured to tune the spectral bandwidth of a laser beam transmitted within the optical resonator, a storage unit configured to store a control value of the spectral bandwidth tuning unit corresponding to a desired spectral bandwidth and a controller configured to control the spectral bandwidth tuning unit based on the control value stored in the storage unit.

Abstract translation: 主振荡器系统可以包括被配置为用作光学谐振器中的一个谐振器反射镜的光栅，被配置为调节在光学谐振器内传输的激光束的光谱带宽的光谱带宽调谐单元，被配置为存储控制值 的光谱带宽调谐单元，以及配置为基于存储在存储单元中的控制值来控制光谱带宽调谐单元的控制器。