公开(公告)号：WO2011063364A1

公开(公告)日：2011-05-26

申请号：PCT/US2010/057693

申请日：2010-11-23

Applicant: LOCKHEED MARTIN CORPORATION ,  MEAD, Roy D.

Inventor： MEAD, Roy D.

IPC: H01S3/30 ,  H01S3/067 ,  H01S3/23 ,  F41H13/00 ,  G02B6/293

CPC classification number: H01S3/0675 ,  F41H13/0056 ,  G02B6/022 ,  H01S3/005 ,  H01S3/094015 ,  H01S3/094046 ,  H01S3/09408 ,  H01S3/09415 ,  H01S3/10092 ,  H01S3/1053 ,  H01S3/1055 ,  H01S3/11 ,  H01S3/2383 ,  H01S3/2391 ,  H01S3/302

Abstract: Fiber-laser light is Raman shifted to eye-safer wavelengths prior to spectral beam combination, enabling a high-power, eye-safer wavelength directed-energy (DE) system. The output of Ytterbium fiber lasers is not used directly for spectral beam combining. Rather, the power from the Yb fiber lasers is Raman-shifted to longer wavelengths, and these wavelengths are then spectrally beam combined. Raman shifting is most readily accomplished with a "cascaded Raman converter," in which a series of nested fiber cavities is formed using fiber Bragg gratings.

Abstract translation: 在光束组合之前，光纤激光是拉曼转移到更安全的波长，实现了高功率，更安全的波长定向能（DE）系统。 镱光纤激光器的输出不直接用于光束组合。 相反，来自Yb光纤激光器的功率是拉曼偏移到更长的波长，并且这些波长然后是光谱波束组合。 使用“级联拉曼转换器”最容易实现拉曼移位，其中使用光纤布拉格光栅形成一系列嵌套光纤腔。