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

Applicant: RAYTHEON COMPANY ,  SHKUNOV, Vladimir V. ,  ROCKWELL, David A. ,  JOHNSON, Scott T.

Inventor： SHKUNOV, Vladimir V. ,  ROCKWELL, David A. ,  JOHNSON, Scott T.

IPC: H01S3/04 ,  H01S3/067 ,  H01S3/094

CPC classification number: H01S3/04 ,  H01S3/06704 ,  H01S3/06708 ,  H01S3/06716 ,  H01S3/0672 ,  H01S3/094003

Abstract: 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.

Abstract translation: 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。

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

Applicant: RAYTHEON COMPANY ,  SHKUNOV, Vladimir V. ,  ROCKWELL, David A. ,  REEDER, Robin A.

Inventor： SHKUNOV, Vladimir V. ,  ROCKWELL, David A. ,  REEDER, Robin A.

IPC: H01S3/067 ,  H01S3/08 ,  G02B6/10

CPC classification number: H01S3/06708 ,  H01S3/06704 ,  H01S3/0672 ,  H01S3/06729 ,  H01S3/08045

Abstract: 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.

Abstract translation: 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。

公开(公告)号：WO2010056253A1

公开(公告)日：2010-05-20

申请号：PCT/US2008/083734

申请日：2008-11-17

Applicant: RAYTHEON COMPANY ,  SHKUNOV, Vladimir, V. ,  BETIN, Alexander, A. ,  ROCKWELL, David, A.

Inventor： SHKUNOV, Vladimir, V. ,  BETIN, Alexander, A. ,  ROCKWELL, David, A.

IPC: H01S3/067 ,  H01S3/063

CPC classification number: H01S3/06704 ,  H01S3/0632 ,  H01S3/06729 ,  H01S3/06733 ,  H01S3/06745 ,  H01S3/08059 ,  H01S3/08081

Abstract: A planar laser gain medium (30) and laser system (100) The laser gain medium (30) includes an active core (32) having a high aspect ratio cross-section with a fast-axis dimension and a slow-axis dimension, signal claddings (36, 38) adapted to form reflective boundaries at fast axis boundaries of the core, and a material (50, 52) adapted to minimize reflections at slow axis boundaries of the core. In the illustrative embodiment, the laser gain medium (30) is an optical fiber. The core (32) and signal claddings (36, 38) form a waveguide adapted to control modes propagating in the fast-axis direction. When the laser gain medium (30) is employed as a laser oscillator, a high reflectivity mirror (102) and an outcoupler (104) are positioned at opposite ends of the core (32) to form a laser resonator adapted to control modes in the slow axis direction

Abstract translation: 平面激光增益介质（30）和激光系统（100）激光增益介质（30）包括具有快轴尺寸和慢轴尺寸的高纵横比横截面的有源芯（32），信号 适于在芯的快轴边界处形成反射边界的包层（36,38）以及适于最小化芯的慢轴边界处的反射的材料（50,52）。 在说明性实施例中，激光增益介质（30）是光纤。 芯（32）和信号包层（36,38）形成适于控制在快轴方向上传播的模式的波导。 当激光增益介质（30）被用作激光振荡器时，高反射镜（102）和输出耦合器（104）位于磁芯（32）的相对端，以形成适于控制 慢轴方向