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公开(公告)号:US20110194166A1
公开(公告)日:2011-08-11
申请号:US12998438
申请日:2009-10-23
CPC分类号: H01S3/2383 , H01S3/0085 , H01S3/06758 , H01S3/10015 , H01S3/1301 , H01S3/1304 , H01S3/1305 , H01S3/1307 , H01S2301/03
摘要: Apparatus for combining laser radiation (1) 5 which apparatus comprises a seed laser (2), a splitter (3), a plurality of amplifier chains (4), a reference amplifier chain (7), detection means (5). demodulator means (6), and phase control means (12), wherein each of the amplifier chains (4) comprises at least one optical amplifier (11), optical radiation (17) emitted from the seed laser (2) is split into the plurality of amplifier chains (4) by the splitter (3). amplified by the plurality of amplifier chains (4), interfered, detected by the detection means (5), demodulated by the demodulator means (6), and a signal (27) indicative of path length imbalance (14) fed back to the phase control means (12), and wherein the apparatus is characterised in that the output power emitted by each amplifier chain (4) is at least 50 W, the bandwidth (8) of the seed laser (2) is at least 1 GHz, and the path length difference (14) between each amplifier chain (4) and the reference amplifier chain (7) is less than the coherence length (10) of the seed laser (2).
摘要翻译: 用于组合激光辐射(1)5的装置,该装置包括种子激光器(2),分束器(3),多个放大器链(4),参考放大器链(7),检测装置(5)。 解调器装置(6)和相位控制装置(12),其中每个放大器链(4)包括至少一个光放大器(11),从种子激光器(2)发射的光辐射(17)被分成 多个放大器链(4)由分离器(3)组成。 由所述多个放大器链(4)放大,由所述检测装置(5)检测到被所述解调器装置(6)解调的干扰,以及指示反馈到所述相位的路径长度不平衡(14)的信号(27) 控制装置(12),其特征在于,每个放大器链(4)发射的输出功率至少为50W,种子激光器(2)的带宽(8)至少为1GHz,以及 每个放大器链(4)和参考放大器链(7)之间的路径长度差(14)小于种子激光器(2)的相干长度(10)。