LAUSR

Abstract Flexible and effective manipulation of the distributed feedback (DFB) polymer lasers remained a challenge. Herein, the performance of the polymer laser was manipulating by integrating a one-dimension diffraction element into the DFB cavity. Gratings with different periods were employed as the DFB cavity and the diffraction element, respectively. The compound cavity with different gratings was fabricated by using a multi-exposure two-beam interference technique. One-to-many lasing beams were realized in the compound cavity. The azimuth and elevation angles of the laser beam were controlled by adjusting the period of the diffraction element. The threshold of the laser device was affected by the introduction of the diffraction element, which was explained by the coupled-mode theory. The manipulation method was also extended to the case of a two-dimension diffraction element. These features provide flexible control over the performance of the polymer lasers.