公开(公告)号：WO2017171961A3

公开(公告)日：2017-10-05

申请号：PCT/US2017/012819

申请日：2017-01-10

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： MONTOYA, Juan ,  RIPIN, Daniel ,  ALESHIRE, Christopher ,  MARTZ, Dale ,  REEVES-HALL, Peter, Colin

IPC: G02F1/01 ,  G02B6/28

Abstract: An electro-optic beam controller, material processing apparatus, or optical amplifier, and corresponding methods, can include an actively controlled, waveguide-based, optical spatial mode conversion device. The conversion device can include a coupler, which can be a photonic lantern, configured to combine light beams into a common light beam; a sensor configured to measure at least one characteristic of the common light beam; and a controller configured to modulate optical parameters of the individual, respective light beams to set one or more spatial modes of the common light beam. Actively controlled and modulated devices can be used to maintain a stable, diffraction-limited beam for use in an amplification, communications, imaging, laser radar, switching, or laser material processing system. Embodiments can also be used to maintain a fundamental or other spatial mode in an optical fiber even while scaling to kilowatt power.

公开(公告)号：WO2017171961A2

公开(公告)日：2017-10-05

申请号：PCT/US2017/012819

申请日：2017-01-10

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： MONTOYA, Juan ,  RIPIN, Daniel ,  ALESHIRE, Christopher ,  MARTZ, Dale ,  REEVES-HALL, Peter, Colin

CPC classification number: G02F1/0115 ,  G02B6/2804 ,  G02B6/2821 ,  G02B6/2826 ,  G02B6/2856 ,  G02F1/0121 ,  G02F1/29 ,  G02F2201/02 ,  G02F2201/05 ,  G02F2201/58 ,  G02F2203/24 ,  H01S3/005

Abstract: An electro-optic beam controller, material processing apparatus, or optical amplifier, and corresponding methods, can include an actively controlled, waveguide-based, optical spatial mode conversion device. The conversion device can include a coupler, which can be a photonic lantern, configured to combine light beams into a common light beam; a sensor configured to measure at least one characteristic of the common light beam; and a controller configured to modulate optical parameters of the individual, respective light beams to set one or more spatial modes of the common light beam. Actively controlled and modulated devices can be used to maintain a stable, diffraction-limited beam for use in an amplification, communications, imaging, laser radar, switching, or laser material processing system. Embodiments can also be used to maintain a fundamental or other spatial mode in an optical fiber even while scaling to kilowatt power.

Abstract translation: 电光束控制器，材料处理设备或光学放大器以及相应的方法可以包括主动控制的基于波导的光学空间模式转换装置。 转换装置可以包括耦合器，该耦合器可以是光子灯，被配置为将光束组合成共同的光束; 配置成测量所述公共光束的至少一个特性的传感器; 以及控制器，其被配置为调制各个光束的光学参数以设置共同光束的一个或多个空间模式。 可以使用有源控制和调制器件来保持稳定的衍射极限光束，用于放大，通信，成像，激光雷达，开关或激光材料处理系统。 实施例也可用于维持光纤中的基本或其他空间模式，即使在缩放至千瓦功率时也是如此。