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1. 发明申请

WO2010085556A1 OPTICAL DEVICE AND METHOD OF CONTROLLING A REFRACTIVE INDEX PROFILE IN THE OPTICAL DEVICE 审中-公开
标题翻译：光学装置和控制光学装置中的折射率指标的方法
公开(公告)号：WO2010085556A1
公开(公告)日：2010-07-29
申请号：PCT/US2010/021640
申请日：2010-01-21
申请人： RAYTHEON COMPANY , SHKUNOV, Vladimir V. , ROCKWELL, David A. , JOHNSON, Scott T.
发明人： SHKUNOV, Vladimir V. , ROCKWELL, David A. , JOHNSON, Scott T.
IPC分类号： H01S3/04 , H01S3/067 , H01S3/094
CPC分类号： H01S3/04 , H01S3/06704 , H01S3/06708 , H01S3/06716 , H01S3/0672 , H01S3/094003
摘要： An optical device includes an optical material comprising active dopant ions and absorber dopant ions spaced apart from the active dopant ions. The active dopant ions are provided to absorb a first radiation and convert a portion of the first radiation into sensible heat. A concentration profile of the absorber dopant ions is selected to absorb a second radiation different from the first radiation and optionally the first radiation in at least one direction of the optical material so as to control a refractive index profile in the at least one direction of the optical material. In another embodiment, a method of controlling a refractive index profile in an optical material includes exciting active dopant ions in the optical material with a first radiation, the active dopant ions converting at least a portion of the first radiation into sensible heat; and exciting absorber dopant ions in the optical material with a second radiation to control a refractive index profile in at least one direction of the optical material.
摘要翻译：光学装置包括光学材料，其包括与活性掺杂剂离子间隔开的活性掺杂剂离子和吸收剂掺杂剂离子。提供活性掺杂剂离子以吸收第一辐射并将第一辐射的一部分转换成显热。选择吸收剂掺杂剂离子的浓度分布以吸收与光学材料的至少一个方向上的第一辐射和任选的第一辐射不同的第二辐射，以便控制光学材料的至少一个方向上的折射率分布光学材料。在另一个实施例中，控制光学材料中的折射率分布的方法包括用第一辐射激发光学材料中的活性掺杂剂离子，活性掺杂剂离子将第一辐射的至少一部分转化为显热; 和具有第二辐射的光学材料中激发的吸收剂掺杂剂离子，以控制光学材料的至少一个方向上的折射率分布。

2. 发明申请

WO2010085554A1 AMPLIFYING WAVEGUIDE WITH SQUARE-SHAPED CORE AND ANTI-GUIDING ALONG THE SLOW AXIS 审中-公开
标题翻译：具有方形芯的放大波形和慢轴上的反导
公开(公告)号：WO2010085554A1
公开(公告)日：2010-07-29
申请号：PCT/US2010/021637
申请日：2010-01-21
申请人： RAYTHEON COMPANY , SHKUNOV, Vladimir V. , ROCKWELL, David A. , REEDER, Robin A.
发明人： SHKUNOV, Vladimir V. , ROCKWELL, David A. , REEDER, Robin A.
IPC分类号： H01S3/067 , H01S3/08 , G02B6/10
CPC分类号： H01S3/06708 , H01S3/06704 , H01S3/0672 , H01S3/06729 , H01S3/08045
摘要： In various embodiments, a semi-guiding optical fiber includes a core (12) having a first refractive index and a high aspect ratio elongated cross-section along a slow axis direction. First and second signal claddings (14) having a second refractive index sandwich the core. A third cladding (16) having a third refractive index substantially surrounds at least side edges of the core (12). The first refractive index of th^core, the third refractive index of the third cladding, and/or the second refractive index of the first and second signal claddings, are selected so as to maximize a differential loss between a lowest order mode propagating in the optical fiber and next order modes so as to discriminate in favor of the lowest order mode and against the next order modes. In another embodiment, a method for mode control in a semi-guiding medium includes controlling either the first refractive index of the core (12), the second refractive index of the first and second signal claddings (14), and/or the third refractive index of the third cladding (16), to maximize a differential loss between a lowest order mode propagating in the optical fiber and next order modes so as to discriminate in favor of the lowest order mode and against the next order modes.
摘要翻译：在各种实施例中，半导光纤包括沿着慢轴方向具有第一折射率和高纵横比细长横截面的芯体（12）。具有第二折射率的第一和第二信号包层（14）夹着芯。具有第三折射率的第三包层（16）基本上围绕芯部（12）的至少侧边缘。选择第一包层的第一折射率，第三包层的第三折射率和/或第二和第二信号包层的第二折射率，以使在光纤和下一个订单模式，以便有利于最低阶模式和下一个订单模式。在另一个实施例中，用于半导向介质中模式控制的方法包括控制芯（12）的第一折射率，第一和第二信号包层（14）的第二折射率，和/或第三折射率以使在光纤中传播的最低阶模式和下一个阶模之间的差分损耗最大化，以便有利于最低阶模式和下一阶模式的区分。

3. 发明申请

WO2013165548A2 MULTI-FUNCTION BEAM DELIVERY FIBERS AND RELATED SYSTEM AND METHOD 审中-公开
标题翻译：多功能光束传输光纤及相关系统及方法
公开(公告)号：WO2013165548A2
公开(公告)日：2013-11-07
申请号：PCT/US2013/028923
申请日：2013-03-04
申请人： RAYTHEON COMPANY
发明人： ROCKWELL, David A.
IPC分类号： G02B6/036 , G02B6/26
CPC分类号： G02B6/02042 , B23K26/0604 , G02B6/02009 , G02B6/024 , G02B6/4296
摘要： An optical fiber includes multiple cores (402, 404, 502, 504, 602, 604, 610) and a cladding (406, 506, 606). At least one of the multiple cores forms an optical waveguide and has an elongated cross-section with a narrower dimension in a fast-axis direction and a wider dimension in a slow-axis direction. The cladding surrounds the multiple cores and has a refractive index that differs from at least one refractive index of the multiple cores. The multiple cores could be stacked (502, 504; 602, 604) such that a first of the multiple cores is located at least partially over a second of the multiple cores in the fast-axis direction. The optical fiber could include an additional core within the cladding and having a substantially circular cross-section (610). The cores could be used to transport a high-power laser beam, an illumination laser beam, and an alignment laser beam. The optical fiber could have a length of at least two meters.
摘要翻译：光纤包括多个芯（402,404,502,504,602,604,610）和一个包层（406,506,606）。多个芯中的至少一个形成光波导，并且具有在快轴方向上具有较窄尺寸的细长横截面和在慢轴方向上的较宽尺寸。包层包围多个芯，并且具有与多个芯的至少一个折射率不同的折射率。多个芯可以堆叠（502,504; 602,604），使得多个芯中的第一个芯至少部分地位于多个芯的快速轴方向上的第二个上。光纤可以在包层内包括一个附加的芯，并且具有基本圆形的横截面（610）。芯可用于传输大功率激光束，照明激光束和对准激光束。光纤可以具有至少两米的长度。

4. 发明申请

WO2021201921A1 RAMAN AMPLIFIER SUPPORTING HIGH OUTPUT POWER AND HIGH BEAM QUALITY 审中-公开
公开(公告)号：WO2021201921A1
公开(公告)日：2021-10-07
申请号：PCT/US2020/062621
申请日：2020-11-30
申请人： RAYTHEON COMPANY
发明人： ROCKWELL, David A.
IPC分类号： H01S3/067 , H01S3/094 , H01S3/0941 , H01S3/30 , H01S5/40 , H01S3/08 , H01S2301/03 , H01S3/06716 , H01S3/06733 , H01S3/06754 , H01S3/08045 , H01S3/094003 , H01S3/094007 , H01S3/09408 , H01S3/094096 , H01S3/09415 , H01S3/302 , H01S5/4012 , H01S5/4087
摘要： A system includes a seed laser (102) configured to generate a seed beam (110) and multiple arrays (116) of semiconductor diode lasers (118) configured to generate multiple pump beams (112). The system also includes a Raman amplifier (108) having a core (202), a first cladding (204) around the core, and at least a second cladding (206) around the first cladding. The core is configured to amplify the seed beam based on optical pump power provided by the pump beams. Each of the core, the first cladding, and the second cladding includes fused silica, and at least the core and the first cladding are doped. The core has a numerical aperture of approximately 0.06 or less and a diameter of approximately 20 μm to approximately 25 μm. The first cladding has a numerical aperture of approximately 0.17 or less and a diameter of approximately 35 μm to approximately 45 μm.

5. 发明申请

WO2018151762A1 OPTICAL FIBER FOR LIGHT AMPLIFICATION HAVING A CORE WITH LOW BEND LOSS AND END FEATURES WITH HIGH BEND LOSS AND RELATED METHOD 审中-公开
公开(公告)号：WO2018151762A1
公开(公告)日：2018-08-23
申请号：PCT/US2017/055517
申请日：2017-10-06
申请人： RAYTHEON COMPANY
发明人： SHKUNOV, Vladimir V. , ROCKWELL, David A.
IPC分类号： H01S3/067 , H01S3/08 , G02B6/028 , H01S3/102
摘要： An apparatus includes an optical fiber (100, 500) configured to transport an optical signal. The optical fiber includes a core (102, 502) configured to receive and amplify the optical signal. The optical fiber also includes end features (104a-104b, 504a-504b) optically coupled to opposite ends of the core. The core has a lower bend loss than the end features. The optical fiber further includes a cladding (106, 506) surrounding the core and the end features. The optical fiber is configured to confine optical power of a fundamental mode in the core. The optical fiber is also configured to allow optical power of one or more higher-order modes to leak from the core into the end features.

6. 发明申请

WO2016081042A1 METHOD AND APPARATUS FOR TEMPORALLY CONCENTRATING PUMP POWER TO SUPPORT GENERATION OF HIGH PEAK-POWER PULSE BURSTS OR OTHER TIME-VARYING LASER OUTPUT WAVEFORMS 审中-公开
标题翻译：用于临时浓缩泵浦功率的方法和装置来支持高功率脉冲脉冲串或其他时变激光输出波形的产生
公开(公告)号：WO2016081042A1
公开(公告)日：2016-05-26
申请号：PCT/US2015/047745
申请日：2015-08-31
申请人： RAYTHEON COMPANY
发明人： ROCKWELL, David A. , SHKUNOV, Vladimir V.
IPC分类号： H01S3/067 , H01S3/094 , H01S3/10 , H01S3/107 , H01S3/13 , H01S3/115
CPC分类号： H01S3/10007 , G01S7/4814 , G01S7/484 , H01S3/06712 , H01S3/06754 , H01S3/094003 , H01S3/094042 , H01S3/094076 , H01S3/10 , H01S3/10038 , H01S3/107 , H01S3/115 , H01S3/1301 , H01S2301/02
摘要： A method includes accumulating (604, 704) optical pump power in a first laser gain medium (218) during a first period of time (TS), where the first laser gain medium is optically located within a resonator (302, 304, 402-406). The method also includes providing (608, 706) at least some of the accumulated optical pump power as a first laser output with a feedback-controlled waveform from the first laser gain medium to a second laser gain medium (204) during a second period of time (TP), where the second period of time is substantially shorter than the first period of time. The method further includes generating (610, 708) a second laser output having a burst (102) of laser pulses (104) using the second laser gain medium as a power amplifier (204). The first and second laser outputs have higher power levels during the second period of time compared to a power level of the optical pump power during the first period of time.
摘要翻译：一种方法包括在第一时间段（TS）期间在第一激光增益介质（218）中累积（604,704）光泵浦功率，其中第一激光增益介质光学地位于谐振器（302,304,402- 406）。该方法还包括在第二激光增益介质（204）的第二周期期间，将累积的光泵浦功率中的至少一些作为第一激光输出提供（608,706），其具有从第一激光增益介质到第二激光增益介质（204）的反馈控制波形时间（TP），其中第二时间段显着短于第一时间段。该方法还包括使用第二激光增益介质作为功率放大器（204）产生具有激光脉冲（104）脉冲串（102）的第二激光输出（610,708）。与第一时间段内的光泵功率的功率水平相比，第一和第二激光输出在第二时间段内具有更高的功率水平。

7. 发明申请

WO2015065577A1 METHOD AND APPARATUS FOR HIGH-POWER RAMAN BEAM-COMBINING IN A MULTIMODE OPTICAL FIBER 审中-公开
标题翻译：用于多模光纤的大功率拉曼光束组合的方法和装置
公开(公告)号：WO2015065577A1
公开(公告)日：2015-05-07
申请号：PCT/US2014/053192
申请日：2014-08-28
申请人： RAYTHEON COMPANY
发明人： ROCKWELL, David A. , SHKUNOV, Vladimir V.
IPC分类号： H01S3/067 , H01S3/30 , H01S3/094 , H01S3/042 , H01S3/16
CPC分类号： H01S3/302 , G02B6/2821 , H01S3/042 , H01S3/06704 , H01S3/0672 , H01S3/06729 , H01S3/06733 , H01S3/06754 , H01S3/094007 , H01S3/09408 , H01S3/1695
摘要： According to an embodiment of the disclosure, a system for producing a higher power laser beam (105) is provided. The system includes an optical fiber (200) having a length. The optical fiber is configured to receive inputs from multiple laser pumps (101) and an input from a Stokes seed laser pump (102). The optical fiber has a core (201, 301, 401) that is doped with for example Germanium. The core, when viewed from a cross-section of the optical fiber, has a higher concentration of doping at a location (290) near an axis (342) of the optical fiber than a location further from the axis of the optical fiber. The optical fiber is also configured to convert pump power to Stokes power along the length of the optical fiber when subjected to a Stimulated Raman Scattering (SRS) process. The optical fiber (200) is a semi-guiding high aspect ratio core fiber (SHARC) having claddings (202) sandwiching the ribbon-like core (201) with open edges (201a, 201b) for the signal light, i.e. the amplified Stokes component. The semi-guiding waveguide is enclosed in a pump cladding (205) with a further outer cladding (203). The optical fiber has a polymer jacket (204).
摘要翻译：根据本公开的实施例，提供了一种用于生产高功率激光束（105）的系统。该系统包括具有长度的光纤（200）。光纤被配置为接收来自多个激光泵（101）的输入和来自斯托克斯种子激光泵（102）的输入。光纤具有掺杂例如锗的芯（201,301,401）。当从光纤的横截面观察时，该芯在比光纤的轴线更靠近的位置（290）附近具有比光纤的轴线（342）更高的掺杂浓度。光纤还被配置为当受到受激拉曼散射（SRS）处理时，沿着光纤的长度将泵浦功率转换成斯托克斯功率。所述光纤（200）是具有将所述带状芯（201）夹持在所述信号光的开口边缘（201a，201b）的包层（202）的半导向高宽比芯芯光纤（SHARC），即所述放大的Stokes 零件。半导向波导被包围在具有另外的外包层（203）的泵包层（205）中。光纤具有聚合物护套（204）。

8. 发明申请

WO2013154662A1 OPTICAL FIBER COUPLER FOR COUPLING SIGNAL BEAMS INTO A NON-CIRCULARLY SHAPED OPTICAL BEAM 审中-公开
标题翻译：用于将信号耦合到非圆形形状光束的光纤耦合器
公开(公告)号：WO2013154662A1
公开(公告)日：2013-10-17
申请号：PCT/US2013/024708
申请日：2013-02-05
申请人： RAYTHEON COMPANY
发明人： KHITROV, Victor , ROCKWELL, David A.
IPC分类号： G02B27/09 , G02B6/04 , G02B6/26
CPC分类号： G02B6/2848 , G02B6/02042 , G02B6/1245 , G02B6/14 , G02B6/2856 , G02B6/4296
摘要： An optical fiber coupler configured to couple signal beams into a non-circularly shaped output optical beam or device is provided. The coupler includes an adiabatically tapered optical device. The tapered optical device has a core taper ratio equal to the ratio between a second core diameter and a first core diameter and a mode taper ratio equal to the ratio between a second mode field diameter and a first mode field diameter. The mode taper ratio is greater than the core taper ratio. A spacing between adjacent cores at the output end is less than a spacing between adjacent cores at the input end by approximately the core taper ratio, thereby increasing brightness of a combined output optical signal relative to the combined brightness of the plurality of input optical fibers by approximately a factor equal to the ratio of the mode taper ratio to the core taper ratio.
摘要翻译：提供了一种被配置为将信号束耦合到非圆形输出光束或装置中的光纤耦合器。耦合器包括绝热锥形光学器件。锥形光学装置的芯锥度比等于第二纤芯直径和第一纤芯直径之间的比率以及等于第二模场直径与第一模场直径之比的模锥度比。模锥比大于芯锥比。在输出端的相邻芯之间的间隔小于输入端的相邻芯之间的间距大致的芯锥度比，由此相对于多个输入光纤的组合亮度增加了组合输出光信号的亮度大约等于模式锥度比与芯锥比的比率。

9. 发明申请

WO2021002894A1 SYSTEM AND METHOD FOR GENERATING MULTIPLE SIMULTANEOUS, CO-PROPAGATING WAVELENGTHS VIA NONLINEAR WAVELENGTH CONVERSION 审中-公开
公开(公告)号：WO2021002894A1
公开(公告)日：2021-01-07
申请号：PCT/US2020/022393
申请日：2020-03-12
申请人： RAYTHEON COMPANY
发明人： BOLAND, Brian F. , DI TEODORO, Fabio , ROCKWELL, David A.
IPC分类号： G02F1/35
摘要： A system includes a waveform generator (210) configured to generate a pulsed laser beam at a first wavelength (λ0). The system also includes at least one splitter (215a, 215b) configured to split the laser beam into multiple beams at the first wavelength. The system also includes at least one wavelength shifter (225a, 225b) configured to shift at least one of the multiple beams to another wavelength (λ1, λ2). The system also includes at least one combiner (230a, 230b) configured to combine the multiple beams into a multi-wavelength beam in which multiple wavelengths are co-aligned and propagating parallel to each other. The system also includes at least one nonlinear crystal (205) configured to receive the multi-wavelength beam and generate multiple co-propagating beams using nonlinear wavelength conversion.

10. 发明申请

WO2013122670A1 MULTI-MEDIA RAMAN RESONATORS AND RELATED SYSTEM AND METHOD 审中-公开
标题翻译：多媒体拉曼共振器及相关系统和方法
公开(公告)号：WO2013122670A1
公开(公告)日：2013-08-22
申请号：PCT/US2012/069279
申请日：2012-12-12
申请人： RAYTHEON COMPANY
发明人： SHKUNOV, Vladimir V. , ROCKWELL, David A.
IPC分类号： G01N21/65
CPC分类号： H01S3/30 , F41H13/005 , F41H13/0056 , F41J2/02 , H01S3/07 , H01S3/08027 , H01S3/0815 , H01S3/082 , H01S3/094038 , H01S3/23
摘要： A system includes a laser configured to generate a pump beam (104, 204, 504, 604, 704, 804) at a pump wavelength. The system also includes a multi-media Raman resonator configured to receive the pump beam and generate an output beam (108, 208, 514, 616, 714, 816). The multi-media Raman resonator includes multiple mirrors (210-212, 306a-c, 308a-c, 506, 512, 612-614) and multiple Raman media (304, 404, 406, 508, 510, 608, 618, 708, 710, 808, 810) optically located between the mirrors. Output power in the output beam is spectrally concentrated around a single dominant longer wavelength. The longer wavelength of the output beam is associated with a combination of at least one Stokes shift associated with each of the individual Raman media. A filter (618, 718, 722, 822, 826) could be configured to absorb light at a wavelength that is absorbed by one of the Raman media or to redirect light at the wavelength absorbed by one of the Raman media away from that Raman medium. First and second filters could also be configured to filter light at different Stokes-shifted wavelengths.
摘要翻译：一种系统包括配置成在泵浦波长处产生泵浦光束（104,204,504,604,704,804）的激光器。该系统还包括被配置为接收泵浦光束并产生输出光束（108,208,514,616,714,816）的多介质拉曼谐振器。多媒体拉曼谐振器包括多个反射镜（210-212,306a-c，308a-c，506,512,612-614）和多个拉曼介质（304,404,406,508,510,608,618,708 ，710,808,810），光学地位于反射镜之间。输出光束中的输出功率被光谱集中在一个主要的较长波长周围。输出光束的较长波长与与每个单独拉曼介质相关联的至少一个斯托克斯波动的组合相关联。滤波器（618,718,722,822,826）可以被配置为吸收由拉曼介质之一吸收的波长的光，或者以从拉曼介质中的一个拉曼介质吸收的波长重定向光。第一滤波器和第二滤波器也可以被配置为滤除不同斯托克斯波长的光。

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