Diode array for diode pumped solid state laser
    2.
    发明公开
    Diode array for diode pumped solid state laser 失效
    二极管泵浦固态激光器的二极管阵列

    公开(公告)号:EP0814550A3

    公开(公告)日:1999-03-10

    申请号:EP97105112.3

    申请日:1997-03-26

    申请人: TRW INC.

    IPC分类号: H01S3/25 H01S3/0941

    CPC分类号: H01S3/0941 H01S5/4025

    摘要: A technique for operating a diode pumped solid state laser in a continuous-wave (cw) mode using diodes blocks (12) that are individually operated in a pulsed mode. For some high power laser applications, it is desirable to provide for operation in pulsed and cw modes, but pump diodes are typically designed for efficient operation in only one of these modes. The invention includes a controller (20) that pulses the individual diode blocks (12) on and off, but not necessarily in unison. For a pulsed mode of operation, the diodes (12) in an array are pulsed either at the same time, or sub-arrays are pulsed in a temporally interleaved manner for a higher effective pulse repetition rate. For the cw mode of operation, the diodes (12) are pulsed sequentially in sub-arrays (A-E), such that at least one sub-array is always energized and the complete array appears to be providing continuous pumping energy. In one embodiment, the sub-arrays (A-E) are columns of the array. In another embodiment, the sub-arrays (12') are each associated with a different solid-state gain medium (10'), the gain media being optically coupled in a single laser.

    Apparatus for optically pumping an optical fiber from the side
    3.
    发明公开
    Apparatus for optically pumping an optical fiber from the side 有权
    Vorrichtung zum seitlichen optischen Pumpen einer optischen Faser

    公开(公告)号:EP1065764A2

    公开(公告)日:2001-01-03

    申请号:EP00111944.5

    申请日:2000-06-15

    申请人: TRW Inc.

    IPC分类号: H01S3/098 H01S3/067 G02B6/42

    摘要: An apparatus (10) for optically pumping an optical fiber (16) from the side comprising a laser (12) for supplying a beam of pump light (14), and an optical fiber (16) having a longitudinal surface disposed to the beam (14), a grating (34) formed in the flat surface (26) for diffracting the beam (14) at a predetermined angle, and an outer clad layer (22) proximate the grating (34) and so as to establish at least one propagating mode characterized by an angle, the predetermined angle being matched to such angle.

    摘要翻译: 一种用于从包括用于提供一束泵浦光(14)的激光器(12)的一侧光学泵浦光纤(16)的装置(10),以及一个具有设置在该光束上的纵向表面的光纤(16) 形成在用于以预定角度衍射光束(14)的平坦表面(26)中的光栅(34)和靠近光栅(34)的外包层(22),以便建立至少一个 以角度为特征的传播模式,该预定角度与该角度相匹配。