| 摘要 |
<p>A laser resonator (11) and a passive resonator (7, 22) are coupled longitudinally in such a way as to prevent multiple reflections in the laser (11). The passive resonator (7, 22) is, for example, monolithically integrated in laser (11). In a semiconductor wafer (5), a laser-active layer (1) and a waveguide layer (2) transparent to the laser beam are arranged at such a distance apart that no optical coupling occurs through the intermediate semiconductor material. The semiconductor wafer (5) has a cavity (7) perpendicular to the direction of layering and perpendicular to the propagation of the light, with a vertical flank (71) which forms a common reflecting surface of the laser (11) and the passive resonator (7, 22) and an inclined flank (72) which reflects the light not coupled to the waveguide layer (22) forming part of the resonator out of the wafer (5).</p> |
