| 摘要 |
<p>This invention relates to a phased-array laser oscillator/amplifier system consisting of looped fibre lasers (1) whose two optically polished end faces are stacked together to form a single output aperture (2) near to which is positioned a single laser mirror (4) in the case of the laser oscillator configuration of the invention or an optical window in the case of the laser amplifier configuration, which is index-matched (3) to said output aperture (2), the said fibre bundle laser medium (1) being optically excited (7) via the said single aperture (2) composed of the fibre ends. In the case of the laser oscillator configurations of the invention, the single laser mirror (4) is partially transmitting and allows the output laser beam (9) to emerge as a phase-locked beam formed by adding together all the outputs from the individual fibre laser ends. In the amplifier configuration of the invention, the input beam (17) to be amplified passes into the said amplifier as a polarized beam via an optical window (26) which is antireflection coated on its outside surface and index-matched to the aperture of the invention from the other side. The invention has application as scaleable laser beam generator in the industrial, medical and defence fields.</p> |
