公开(公告)号：US20140371730A1

公开(公告)日：2014-12-18

申请号：US14340961

申请日：2014-07-25

Applicant: Rafael Armando Sierra ,  Mirko Georgiev Mirkov

Inventor： Rafael Armando Sierra ,  Mirko Georgiev Mirkov

IPC: A61B18/20 ,  A61N5/06 ,  H01S3/11

CPC classification number: A61B18/203 ,  A61B2018/0047 ,  A61N5/0616 ,  A61N2005/067 ,  H01S3/0092 ,  H01S3/0627 ,  H01S3/08018 ,  H01S3/08054 ,  H01S3/093 ,  H01S3/094038 ,  H01S3/094076 ,  H01S3/094084 ,  H01S3/1024 ,  H01S3/107 ,  H01S3/1106 ,  H01S3/1109 ,  H01S3/1121 ,  H01S3/1611 ,  H01S3/1623 ,  H01S3/1633 ,  H01S3/1643 ,  H01S3/1673

Abstract: Methods, systems and apparatus are disclosed for delivery of pulsed treatment radiation by employing a pump radiation source generating picosecond pulses at a first wavelength, and a frequency-shifting resonator having a lasing medium and resonant cavity configured to receive the picosecond pulses from the pump source at the first wavelength and to emit radiation at a second wavelength in response thereto, wherein the resonant cavity of the frequency-shifting resonator has a round trip time shorter than the duration of the picosecond pulses generated by the pump radiation source. Methods, systems and apparatus are also disclosed for providing beam uniformity and a sub-harmonic resonator.

公开(公告)号：US20140169787A1

公开(公告)日：2014-06-19

申请号：US13718008

申请日：2012-12-18

Applicant: INFINERA CORPORATION

Inventor： Brian SHIA ,  Yan Han

IPC: H04B10/08

CPC classification number: H04B10/2931 ,  H01S3/06754 ,  H01S3/094076 ,  H01S3/10015 ,  H01S3/1301

Abstract: A controller is configured to determine a first amount of current associated with a first power level. The controller is configured further to generate a digital pulse signal based on the first amount of current, where the digital pulse signal may have a second power level and an associated duty cycle. The controller is configured further to convert the digital pulse signal into a second amount of current and output the second amount of current as a pulse signal based on the duty cycle.

Abstract translation: 控制器被配置为确定与第一功率电平相关联的第一电流量。 控制器进一步配置为基于第一电流量产生数字脉冲信号，其中数字脉冲信号可具有第二功率电平和相关联的占空比。 该控制器被配置为进一步将数字脉冲信号转换成第二量的电流，并且基于占空比将第二量的电流作为脉冲信号输出。

公开(公告)号：US08743916B2

公开(公告)日：2014-06-03

申请号：US13141910

申请日：2009-02-05

Applicant: Shuhei Yamamoto ,  Yosuke Akino ,  Takayuki Yanagisawa ,  Yoshihito Hirano

Inventor： Shuhei Yamamoto ,  Yosuke Akino ,  Takayuki Yanagisawa ,  Yoshihito Hirano

IPC: H01S3/109

CPC classification number: H01S3/042 ,  H01S3/0092 ,  H01S3/0405 ,  H01S3/0632 ,  H01S3/0804 ,  H01S3/08072 ,  H01S3/094076 ,  H01S3/09415 ,  H01S3/1028 ,  H01S3/2383 ,  H01S5/4025 ,  H04N9/3161

Abstract: A plane waveguide type laser includes: a plate-shaped laser medium; a semiconductor laser which causes excitation light to enter an end surface of the laser medium; first and second claddings which are bonded to lower and upper surfaces of the laser medium, respectively, to form a waveguide in a vertical direction; a comb heat sink bonded to a lower surface of the first cladding; and a thermal lens producing portion bonded to an upper surface of the second cladding. In this structure, laser oscillation in the vertical direction is performed in a waveguide mode of the laser medium, and the thermal lens producing portion forms a periodic lens effect in the laser medium to perform laser oscillation in a lateral direction in a plurality of resonant modes.

Abstract translation: 平面波导型激光器包括：板状激光介质; 使激发光进入激光介质的端面的半导体激光器; 第一和第二包层分别结合到激光介质的下表面和上表面，以在垂直方向上形成波导; 结合到第一包层的下表面的梳形散热器; 以及粘合到第二包层的上表面的热透镜产生部分。 在该结构中，在激光介质的波导模式中进行垂直方向的激光振荡，并且热透镜产生部在激光介质中形成周期性透镜效应，以在多个谐振模式中沿横向进行激光振荡 。

公开(公告)号：US08649403B2

公开(公告)日：2014-02-11

申请号：US13606235

申请日：2012-09-07

Applicant: Yasuhiro Oba ,  Michihiro Nakai

Inventor： Yasuhiro Oba ,  Michihiro Nakai

IPC: H01S3/30

CPC classification number: H01S3/06754 ,  G02F1/33 ,  G02F1/3526 ,  G02F1/37 ,  G02F2201/04 ,  G02F2201/307 ,  H01S3/0078 ,  H01S3/0092 ,  H01S3/0675 ,  H01S3/094076 ,  H01S3/10015 ,  H01S3/10046 ,  H01S3/10069 ,  H01S3/10092 ,  H01S3/1022 ,  H01S3/1068 ,  H01S3/1301 ,  H01S3/2375 ,  H01S3/302

Abstract: When an output instruction is input to a control unit, the control unit controls a seed laser light source and a pumping light source to be either in a pre-pumped state or in an output state. In the pre-pumped state, the pumping light source outputs, for a predetermined period, pumping light with an intensity determined based on the duration of the period of time from when the output state prior to the input of the output instruction to the control unit comes to an end till when the output instruction is input to the control unit. In the output state, to cause the output unit to output laser light, the seed laser light source outputs laser light, and the pumping light source outputs pumping light.

Abstract translation: 当将输出指令输入到控制单元时，控制单元控制种子激光光源和泵浦光源处于预抽状态或输出状态。 在预泵浦状态下，泵浦光源在预定时间内输出具有基于从输入指令输​​入到控制单元之前的输出状态的时间段的持续时间确定的强度的泵浦光 结束，直到输出指令输入到控制单元。 在输出状态下，为了使输出单元输出激光，种子激光光源输出激光，泵浦光源输出泵浦光。

公开(公告)号：US20140036350A1

公开(公告)日：2014-02-06

申请号：US14048177

申请日：2013-10-08

Applicant: IMRA AMERICA, INC.

Inventor： Martin Fermann ,  Ingmar Hartl ,  Andrius Marcinkevicius ,  Liang Dong

IPC: H01S3/067

CPC classification number: H01S3/06737 ,  G02B6/02042 ,  H01S3/0057 ,  H01S3/0085 ,  H01S3/06704 ,  H01S3/06712 ,  H01S3/06729 ,  H01S3/06741 ,  H01S3/06745 ,  H01S3/06754 ,  H01S3/08059 ,  H01S3/094007 ,  H01S3/094019 ,  H01S3/094053 ,  H01S3/094076 ,  H01S3/10084 ,  H01S3/1305 ,  H01S3/1307 ,  H01S3/2333 ,  H01S3/2383

Abstract: High power parallel fiber arrays for the amplification of high peak power pulses are described. Fiber arrays based on individual fiber amplifiers as well as fiber arrays based on multi-core fibers can be implemented. The optical phase between the individual fiber amplifier elements of the fiber array is measured and controlled using a variety of phase detection and compensation techniques. High power fiber array amplifiers can be used for EUV and X-ray generation as well as pumping of parametric amplifiers.

Abstract translation: 描述了用于放大高峰值功率脉冲的大功率并行光纤阵列。 可以实现基于单个光纤放大器的光纤阵列以及基于多芯光纤的光纤阵列。 使用各种相位检测和补偿技术来测量和控制光纤阵列的各个光纤放大器元件之间的光学相位。 大功率光纤阵列放大器可用于EUV和X射线产生以及泵浦参数放大器。

公开(公告)号：US08582201B2

公开(公告)日：2013-11-12

申请号：US13568182

申请日：2012-08-07

Applicant: Donald J. Harter

Inventor： Donald J. Harter

IPC: H04B10/17 ,  H01S3/10

CPC classification number: H01S3/0057 ,  G02B6/2932 ,  G02B6/29374 ,  H01S3/067 ,  H01S3/06708 ,  H01S3/06716 ,  H01S3/06725 ,  H01S3/0675 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/08013 ,  H01S3/094003 ,  H01S3/094076 ,  H01S3/0941 ,  H01S3/10046 ,  H01S3/11 ,  H01S3/1106 ,  H01S3/1608 ,  H01S3/1618 ,  H01S3/2308 ,  H01S5/0057 ,  H04B10/508

Abstract: System for converting relatively long pulses from rep-rate variable ultrafast optical sources to shorter, high-energy pulses suitable for sources in high-energy ultrafast lasers. Fibers with positive group velocity dispersion (GVD) and self phase modulation are advantageously employed with the optical sources. These systems take advantage of the need for higher pulse energies at lower repetition rates so that such sources can be cost effective.

公开(公告)号：US20130265634A1

公开(公告)日：2013-10-10

申请号：US13993809

申请日：2011-12-20

Applicant: Ian Peter McClean ,  Peter Wigley

Inventor： Ian Peter McClean ,  Peter Wigley

IPC: H01S3/102 ,  H01S3/30

CPC classification number: H01S3/1024 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/094076 ,  H01S3/094096 ,  H01S3/1301 ,  H01S3/302 ,  H01S2301/03 ,  H01S2301/04

Abstract: A pump unit (402) for a Raman amplifier (400) including an optical fibre (401) carrying an optical signal (420) is disclosed. The pump unit includes at least two light sources (411, 412, 431, 432) for emitting light at different wavelengths into the fibre to induce Raman gain of the optical signal passing along the fibre, and a controller (409) for providing pulses to each of the light sources to control when they do and do not emit light. The controller is configured to control the width of the pulses to control the total power of the light emitted into the fibre.

Abstract translation: 公开了一种用于包括携带光信号（420）的光纤（401）的拉曼放大器（400）的泵单元（402）。 所述泵单元包括至少两个光源（411,412,431,432），用于将不同波长的光发射到所述光纤中以引起沿着所述光纤通过的光信号的拉曼增益;以及控制器（409），用于提供脉冲 每个光源在何时进行控制并且不发光。 控制器被配置为控制脉冲的宽度以控制发射到光纤中的光的总功率。

公开(公告)号：US20130162987A1

公开(公告)日：2013-06-27

申请号：US13727506

申请日：2012-12-26

Applicant: Fujitsu Telecom Networks Limited ,  Fujitsu Limited

Inventor： Shota Mori ,  Norifumi Shukunami ,  Takeshi Hoshida

IPC: G01J3/44

CPC classification number: H01S3/302 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/094073 ,  H01S3/094076 ,  H01S3/094096 ,  H01S3/09415 ,  H01S5/0057

Abstract: An excitation light source, for Raman amplification, includes a polarization beam splitter (PBS) for splitting a laser beam from an excitation laser into two polarization components, and a polarization beam combiner (PBC) for combining the two polarization components, and a time difference generator provided between PBS and PBC. The time difference generator generates a difference in propagation time between the two polarization components.

Abstract translation: 用于拉曼放大的激发光源包括用于将来自激发激光器的激光束分裂成两个偏振分量的偏振分束器（PBS）和用于组合两个偏振分量的偏振光束组合器（PBC），以及时间差 PBS和PBC之间提供发生器。 时差发生器产生两个偏振分量之间的传播时间差。

公开(公告)号：US08411710B2

公开(公告)日：2013-04-02

申请号：US13160172

申请日：2011-06-14

Applicant: Shinobu Tamaoki

Inventor： Shinobu Tamaoki

IPC: H01S3/10

CPC classification number: H01S3/06779 ,  H01S3/0085 ,  H01S3/094003 ,  H01S3/094011 ,  H01S3/094076 ,  H01S3/09415 ,  H01S3/10007 ,  H01S3/10046 ,  H01S3/1618 ,  H01S2301/02

Abstract: The present invention relates to a laser apparatus with a structure for realizing a fast response in carrying out a start and an end of output of pulsed laser light while effectively suppressing damage to an optical amplifying medium. The laser apparatus is provided with a seed light source, an optical amplification section, a pulse modulator, a pump power controller, and a main controller. The pulse modulator receives an output start instruction and an output end instruction fed from the main controller and controls a start and an end of output of seed light from the seed light source. The pump power controller receives a pump trigger signal fed from the main controller and increases or decreases a power of pump light supplied to the amplification section. The main controller decreases the power of the pump light supplied to the amplification section, on the occasion of ending the output of the pulsed laser light, and thereafter makes the pulse modulator end the output of the seed light from the seed light source.

Abstract translation: 本发明涉及具有用于在实现脉冲激光的输出的开始和结束时实现快速响应的结构的激光装置，同时有效地抑制对光放大介质的损害。 激光装置设置有种子光源，光放大部，脉冲调制器，泵功率控制器和主控制器。 脉冲调制器接收从主控制器馈送的输出开始指令和输出结束指令，控制来自种子光源的种子光的开始和结束。 泵功率控制器接收从主控制器馈送的泵触发信号，并增加或减少供给到放大部分的泵浦光的功率。 在结束脉冲激光的输出的情况下，主控制器降低提供给放大部分的泵浦光的功率，然后使得脉冲调制器从种子光源结束种子光的输出。

公开(公告)号：US20130034113A1

公开(公告)日：2013-02-07

申请号：US13606235

申请日：2012-09-07

Applicant: Yasuhiro Oba ,  Michihiro Nakai

Inventor： Yasuhiro Oba ,  Michihiro Nakai

IPC: H01S3/067

CPC classification number: H01S3/06754 ,  G02F1/33 ,  G02F1/3526 ,  G02F1/37 ,  G02F2201/04 ,  G02F2201/307 ,  H01S3/0078 ,  H01S3/0092 ,  H01S3/0675 ,  H01S3/094076 ,  H01S3/10015 ,  H01S3/10046 ,  H01S3/10069 ,  H01S3/10092 ,  H01S3/1022 ,  H01S3/1068 ,  H01S3/1301 ,  H01S3/2375 ,  H01S3/302

Abstract: When an output instruction is input to a control unit, the control unit controls a seed laser light source and a pumping light source to be either in a pre-pumped state or in an output state. In the pre-pumped state, the pumping light source outputs, for a predetermined period, pumping light with an intensity determined based on the duration of the period of time from when the output state prior to the input of the output instruction to the control unit comes to an end till when the output instruction is input to the control unit. In the output state, to cause the output unit to output laser light, the seed laser light source outputs laser light, and the pumping light source outputs pumping light.

Abstract translation: 当将输出指令输入到控制单元时，控制单元控制种子激光光源和泵浦光源处于预抽状态或输出状态。 在预泵浦状态下，泵浦光源在预定时间内输出具有基于从输入指令输​​入到控制单元之前的输出状态的时间段的持续时间确定的强度的泵浦光 结束，直到输出指令输入到控制单元。 在输出状态下，为了使输出单元输出激光，种子激光光源输出激光，泵浦光源输出泵浦光。