公开(公告)号：US08451529B2

公开(公告)日：2013-05-28

申请号：US13389032

申请日：2010-08-05

申请人： Ady Arie ,  Zachary Sacks ,  Ofer Gayer ,  Gil Porat

发明人： Ady Arie ,  Zachary Sacks ,  Ofer Gayer ,  Gil Porat

IPC分类号： G02F1/39

CPC分类号： G02F1/39 ,  G02F1/3534 ,  G02F2001/3548 ,  H01S3/109

摘要： A cA crystal configured to change a frequency of a laser through an optical parametric oscillation (OPO) process and a difference frequency generation (DFG) process is provided. The crystal includes: an OPO-DFG segment that is quasi-periodically poled to yield (i) a conversion of a laser pump light applied thereto, to a first signal and an idler, and (ii) a conversion of a first signal applied thereto, to a second signal and to the idler, by phase-matching a difference frequency generation (DFG) process and an OPO process therein simultaneously, wherein the laser pump light has a frequency that equals a sum of a frequency of the first signal and a frequency of the idler and wherein the frequency of the first signal equals a sum of a frequency of the second signal and the frequency of the idler.

摘要翻译： 提供了通过光学参数振荡（OPO）处理和差频产生（DFG）处理来改变激光器频率的cA晶体。 晶体包括：准周期极化的OPO-DFG段，以产生（i）施加于其上的激光泵浦光的转换为第一信号和惰轮，以及（ii）施加到其上的第一信号的转换 通过将差频生成（DFG）处理和OPO处理同时进行相位匹配，到第二信号和空闲器，其中激光泵浦光具有等于第一信号的频率和 所述惰轮的频率，并且其中所述第一信号的频率等于所述第二信号的频率与所述惰轮的频率之和。

公开(公告)号：US08508839B2

公开(公告)日：2013-08-13

申请号：US13120928

申请日：2009-09-15

申请人： Zachary Sacks ,  Ady Arie ,  Ofer Gayer

发明人： Zachary Sacks ,  Ady Arie ,  Ofer Gayer

IPC分类号： G02F1/35 ,  G02F2/02

CPC分类号： G02F1/3534 ,  G02F1/39

摘要： A system and method for improving conversion efficiency of a difference frequency generator (DFG) and/or for outputting a desired shape of the output signal, where the method includes providing a pump source, modifying the pump pulse temporal shape for optimal DFG conversion efficiency, and providing the modified pump pulse to the DFG. The pump source may be, for example, a MOPA laser or a diode or any other suitable source. In one embodiment, the pump pulse shape is modified such that an initial gain within the DFG is high, followed by a lower level signal for efficient conversion within the DFG. An example of such a shape is a double square pulse. Other configurations are possible as well such as a single rectangular pulse shape.

摘要翻译： 一种用于提高差分频率发生器（DFG）的转换效率和/或用于输出所需形状的输出信号的系统和方法，其中所述方法包括提供泵浦源，修改泵浦脉冲时间形状以获得最佳的DFG转换效率， 并向DFG提供改进的泵浦脉冲。 泵源可以是例如MOPA激光器或二极管或任何其它合适的源。 在一个实施例中，泵浦脉冲形状被修改为使得DFG内的初始增益为高，随后为DFG内的有效转换的较低电平信号。 这种形状的一个例子是双平方脉冲。 其他配置也是可能的，例如单个矩形脉冲形状。

公开(公告)号：US20120134013A1

公开(公告)日：2012-05-31

申请号：US13389032

申请日：2010-08-05

申请人： Ady Arie ,  Zachary Sacks ,  Ofer Gayer ,  Gil Porat

发明人： Ady Arie ,  Zachary Sacks ,  Ofer Gayer ,  Gil Porat

IPC分类号： G02F1/39

CPC分类号： G02F1/39 ,  G02F1/3534 ,  G02F2001/3548 ,  H01S3/109

摘要： A cA crystal configured to change a frequency of a laser through an optical parametric oscillation (OPO) process and a difference frequency generation (DFG) process is provides. The crystal includes: an OPO/DFG segment that is quasi-periodically poled to yield (i) a conversion of a pump light applied thereto, to a first signal and an idler, and (ii) a conversion of a first signal applied thereto, to a second signal and to an idler signal, by phase-matching a difference frequency generation (DFG) process and an OPO process therein simultaneously, wherein the pump light has a frequency that equals a sum of a frequency of the first signal and a frequency of the idler and wherein the frequency of the first signal equals a sum of a frequency of the second signal and the frequency of idler.

摘要翻译： 提供了通过光学参数振荡（OPO）处理和差频产生（DFG）处理来改变激光器频率的cA晶体。 晶体包括：准周期极化的OPO / DFG段，以产生（i）施加到其上的泵浦光的转换为第一信号和惰轮，以及（ii）施加到其上的第一信号的转换， 通过将差频生成（DFG）处理和OPO处理相互匹配同时进行第二信号和空闲信号，其中泵浦光具有等于第一信号的频率和频率之和的频率 并且其中所述第一信号的频率等于所述第二信号的频率和所述惰轮频率的和。

公开(公告)号：US20110242645A1

公开(公告)日：2011-10-06

申请号：US13120928

申请日：2009-09-15

申请人： Zachary Sacks ,  Ady Arie ,  Ofer Gayer

发明人： Zachary Sacks ,  Ady Arie ,  Ofer Gayer

IPC分类号： G02F1/39

CPC分类号： G02F1/3534 ,  G02F1/39

摘要： A system and method for improving conversion efficiency of a difference frequency generator (DFG) and/or for outputting a desired shape of the output signal, where the method includes providing a pump source, modifying the pump pulse temporal shape for optimal DFG conversion efficiency, and providing the modified pump pulse to the DFG. The pump source may be, for example, a MOPA laser or a diode or any other suitable source. In one embodiment, the pump pulse shape is modified such that an initial gain within the DFG is high, followed by a lower level signal for efficient conversion within the DFG. An example of such a shape is a double square pulse. Other configurations are possible as well such as a single rectangular pulse shape.

摘要翻译： 一种用于提高差分频率发生器（DFG）的转换效率和/或用于输出所需形状的输出信号的系统和方法，其中所述方法包括提供泵浦源，修改泵浦脉冲时间形状以获得最佳的DFG转换效率， 并向DFG提供改进的泵浦脉冲。 泵源可以是例如MOPA激光器或二极管或任何其它合适的源。 在一个实施例中，泵浦脉冲形状被修改为使得DFG内的初始增益为高，随后为DFG内的有效转换的较低电平信号。 这种形状的一个例子是双平方脉冲。 其他配置也是可能的，例如单个矩形脉冲形状。

公开(公告)号：US20110261440A1

公开(公告)日：2011-10-27

申请号：US13125110

申请日：2009-12-07

申请人： Zachary Sacks ,  Doron Chomsky ,  Dov Abramovich ,  Doron David

发明人： Zachary Sacks ,  Doron Chomsky ,  Dov Abramovich ,  Doron David

IPC分类号： H01S3/067

CPC分类号： H01S3/2308 ,  G02F1/3515 ,  G02F1/3534 ,  G02F1/39 ,  H01S3/06758 ,  H01S3/094076 ,  H01S3/10015

摘要： Systems and methods for modulating the output of a difference frequency generator such as an OPO, OPA or OPG include a pump fiber laser having at least one internal, directly modulatible component, wherein the pump fiber laser produces a pump signal, and a difference frequency generator coupled to the pump fiber laser. The difference frequency generator is configured for accepting the pump signal of the pump fiber laser and producing an output signal, wherein parameters of the output signal are determined based on direct modulation of the internal, directly modulatible component of the pump fiber laser.

摘要翻译： 用于调制诸如OPO，OPA或OPG的差频发生器的输出的系统和方法包括具有至少一个内部直接调制的部件的泵浦光纤激光器，其中所述泵浦光纤激光器产生泵浦信号，以及差频发生器 耦合到泵浦光纤激光器。 差频发生器被配置为接受泵浦光纤激光器的泵浦信号并产生输出信号，其中基于泵浦光纤激光器的内部直接调制部件的直接调制来确定输出信号的参数。

公开(公告)号：US20070206177A1

公开(公告)日：2007-09-06

申请号：US10558992

申请日：2004-06-03

申请人： Israel Anschel ,  Vladimir Krupkin ,  Andrew Lovett ,  Zachary Sacks ,  Doron Chomski ,  Zeev Schiffer ,  Kuti Grossman ,  Elena Luria ,  Doron David ,  Itamar Shoshan

发明人： Israel Anschel ,  Vladimir Krupkin ,  Andrew Lovett ,  Zachary Sacks ,  Doron Chomski ,  Zeev Schiffer ,  Kuti Grossman ,  Elena Luria ,  Doron David ,  Itamar Shoshan

IPC分类号： G01C3/08 ,  H04K3/00 ,  G01P3/36

CPC分类号： F41H11/02 ,  F41H13/0056 ,  F42B12/382 ,  G01S7/481 ,  G01S7/495 ,  G02F1/39 ,  H04K3/42 ,  H04K3/45 ,  H04K3/825 ,  H04K2203/14 ,  H04K2203/24

摘要： A DIRCM (Direct IR Counter Measures) system includes a detection and warning apparatus for detecting a missile that might pose a threat on the platform to which said system is allocated, and for generating a warning of its existence. The warning may include data that enable the calculation of the expected direction from which the missile is approaching. The DIRCM system may also include an acquisition device for performing acquisition of the approaching missile in accordance with the data provided by the detection and warning apparatus, and issuing data that may enable the calculation in real time of the updated position of the missile, a fiber laser for generating a laser beam, and a motion and aiming enabled turret, coupled with the laser, for directing the laser beam onto the approaching missile. The laser beam may be generated in accordance with the missile's updated position as calculated based on data received from the acquisition device, and processing means, linked to the detection and warning apparatus and also to the acquisition device, the laser and the turret.

摘要翻译： DIRCM（直接红外线对抗措施）系统包括检测和警告装置，用于检测可能对所述系统被分配的平台构成威胁的导弹，并产生其存在的警告。 该警告可能包括能够计算导弹正在接近的预期方向的数据。 DIRCM系统还可以包括用于根据检测和警告装置提供的数据执行接近导弹的采集的采集装置，以及发出可实现计算导弹更新位置的数据，光纤 用于产生激光束的激光器和与激光器耦合的运动和瞄准功能转台，用于将激光束引导到接近的导弹上。 激光束可以根据基于从采集装置接收到的数据计算出的导弹更新位置以及与检测和警告装置连接的处理装置以及采集装置，激光器和炮塔来生成。

公开(公告)号：US07688247B2

公开(公告)日：2010-03-30

申请号：US10558992

申请日：2004-06-03

申请人： Israel Anschel ,  Vladimir Krupkin ,  Andrew Lovett ,  Zachary Sacks ,  Doron Chomski ,  Zeev Schiffer ,  Kuti Grossman ,  Elena Luria ,  Doron David ,  Itamar Shoshan

发明人： Israel Anschel ,  Vladimir Krupkin ,  Andrew Lovett ,  Zachary Sacks ,  Doron Chomski ,  Zeev Schiffer ,  Kuti Grossman ,  Elena Luria ,  Doron David ,  Itamar Shoshan

IPC分类号： G01S7/495 ,  H04K3/00 ,  G01S17/00 ,  F41G7/00

CPC分类号： F41H11/02 ,  F41H13/0056 ,  F42B12/382 ,  G01S7/481 ,  G01S7/495 ,  G02F1/39 ,  H04K3/42 ,  H04K3/45 ,  H04K3/825 ,  H04K2203/14 ,  H04K2203/24

摘要： A DIRCM (Direct IR Counter Measures) system includes a detection and warning apparatus for detecting a missile that might pose a threat on the platform to which said system is allocated, and for generating a warning of its existence. The warning may include data that enable the calculation of the expected direction from which the missile is approaching. The DIRCM system may also include an acquisition device for performing acquisition of the approaching missile in accordance with the data provided by the detection and warning apparatus, and issuing data that may enable the calculation in real time of the updated position of the missile, a fiber laser for generating a laser beam, and a motion and aiming enabled turret, coupled with the laser, for directing the laser beam onto the approaching missile. The laser beam may be generated in accordance with the missile's updated position as calculated based on data received from the acquisition device, and processing means, linked to the detection and warning apparatus and also to the acquisition device, the laser and the turret.

摘要翻译： DIRCM（直接红外线对抗措施）系统包括检测和警告装置，用于检测可能对所述系统被分配的平台构成威胁的导弹，并产生其存在的警告。 该警告可能包括能够计算导弹正在接近的预期方向的数据。 DIRCM系统还可以包括用于根据检测和警告装置提供的数据执行接近导弹的采集的采集装置，以及发出可实现计算导弹更新位置的数据，光纤 用于产生激光束的激光器和与激光器耦合的运动和瞄准功能转台，用于将激光束引导到接近的导弹上。 激光束可以根据基于从采集装置接收到的数据计算出的导弹更新位置以及与检测和警告装置连接的处理装置以及采集装置，激光器和炮塔来生成。

公开(公告)号：US08768118B2

公开(公告)日：2014-07-01

申请号：US12839289

申请日：2010-07-19

申请人： Zachary Sacks ,  Zeev Schiffer

发明人： Zachary Sacks ,  Zeev Schiffer

IPC分类号： G02B6/26 ,  H01S3/30

CPC分类号： H01S3/06716 ,  H01S3/06729 ,  H01S3/0675 ,  H01S3/0677 ,  H01S3/094003 ,  H01S3/1616

摘要： A system for coupling light into a fiber in accordance with embodiments of the present invention include a first fiber, a second fiber which is a double clad fiber, and a bulk optic component positioned between the first and second fibers. At least one mode stripper is positioned between the first fiber entry port and the second fiber exit port providing for limiting and removal of propagating clad light.

摘要翻译： 根据本发明的实施例的用于将光耦合到光纤中的系统包括第一光纤，作为双包层光纤的第二光纤和位于第一和第二光纤之间的体光学元件。 至少一个模式剥离器位于第一光纤入口和第二光纤出口之间，用于限制和去除传播的包层光。

公开(公告)号：US20110038579A1

公开(公告)日：2011-02-17

申请号：US12839289

申请日：2010-07-19

申请人： Zachary Sacks ,  Zeev Schiffer

发明人： Zachary Sacks ,  Zeev Schiffer

IPC分类号： G02B6/26

CPC分类号： H01S3/06716 ,  H01S3/06729 ,  H01S3/0675 ,  H01S3/0677 ,  H01S3/094003 ,  H01S3/1616

摘要： A system for coupling light into a fiber in accordance with embodiments of the present invention include a first fiber, a second fiber which is a double clad fiber, and a bulk optic component positioned between the first and second fibers. At least one mode stripper is positioned between the first fiber entry port and the second fiber exit port providing for limiting and removal of propagating clad light.

摘要翻译： 根据本发明的实施例的用于将光耦合到光纤中的系统包括第一光纤，作为双包层光纤的第二光纤和位于第一和第二光纤之间的体光学元件。 至少一个模式剥离器位于第一光纤入口和第二光纤出口之间，用于限制和去除传播的包层光。

公开(公告)号：US09130351B2

公开(公告)日：2015-09-08

申请号：US13125110

申请日：2009-12-07

申请人： Zachary Sacks ,  Doron Chomsky ,  Dov Abramovich ,  Doron David

发明人： Zachary Sacks ,  Doron Chomsky ,  Dov Abramovich ,  Doron David

IPC分类号： H01S3/23 ,  G02F1/35 ,  G02F1/39 ,  H01S3/094 ,  H01S3/10 ,  H01S3/067

CPC分类号： H01S3/2308 ,  G02F1/3515 ,  G02F1/3534 ,  G02F1/39 ,  H01S3/06758 ,  H01S3/094076 ,  H01S3/10015

摘要： Systems and methods for modulating the output of a difference frequency generator such as an OPO, OPA or OPG include a pump fiber laser having at least one internal, directly modulatible component, wherein the pump fiber laser produces a pump signal, and a difference frequency generator coupled to the pump fiber laser. The difference frequency generator is configured for accepting the pump signal of the pump fiber laser and producing an output signal, wherein parameters of the output signal are determined based on direct modulation of the internal, directly modulatible component of the pump fiber laser.

摘要翻译： 用于调制诸如OPO，OPA或OPG的差频发生器的输出的系统和方法包括具有至少一个内部直接调制的部件的泵浦光纤激光器，其中所述泵浦光纤激光器产生泵浦信号，以及差频发生器 耦合到泵浦光纤激光器。 差频发生器被配置为接受泵浦光纤激光器的泵浦信号并产生输出信号，其中基于泵浦光纤激光器的内部直接调制部件的直接调制来确定输出信号的参数。