Abstract: The invention relates to a method and apparatus for recording digital data on an image-receiving medium (20). The recording head (71) is transported along a slow-scan-direction (Y) and digital image data is recorded along a fast-scan-direction (X). The recording head (71) is decoupled from its drive (60) during recording of digital image data of a line or an image or part of it. The transient movement of the recording head (71) along the fast-scan-direction (X) is detected before and/or during exposure using a sensor system (52, 53) and these signals are used to derive a high precision synchronized clock by suitable interpolation and/or extrapolation for the recording of image data to the image-receiving medium (20).

Abstract: The invention relates to a method and apparatus for recording digital data on an image-receiving medium (20). The recording head (71) is transported along a slow-scan-direction (Y) and digital image data is recorded along a fast-scan-direction (X). The recording head (71) is decoupled from its drive (60) during recording of digital image data of a line or an image or part of it. The transient movement of the recording head (71) along the fast-scan-direction (X) is detected before and/or during exposure using a sensor system (52, 53) and these signals are used to derive a high precision synchronized clock by suitable interpolation and/or extrapolation for the recording of image data to the image-receiving medium (20).

Abstract: The device (V) serves the optical coupling of a light-beam (L) arriving from any optical component with a further-transmitting light-guiding fiber (F). It contains in each case an input-side and output-side coupling body (1,2) with in each case a centric lead-through (13, 22) for leading through the light (L) wherein in the device (V) there is arranged at least one lens (40) or a lens system. Between the input-side (1) and the output-side coupling body (2) there is arranged an intermediate coupling body (3) with a centric lead-Through (34), which in one of the input-side or output-side coupling bodies (1,2) is displaceably and lockably held in a plane, whilst the outer input-side or output-side coupling bodies (1,2) in the intermediate coupling body (3) is counted in an elastically (25) pivotally movable and axially displaceable manner. The device (V) permits a separate angular adjustment or parallel displacement of the input-side and output-side coupling bodies (1, 2) relative to one another.

Abstract: The device (V) serves the optical coupling of an arriving light beam (L) from any optical component, with a further-transmitting light-guiding fiber (F). It contains in each case an input-side and output-side coupling body (1,2) with in each case a centric lead-through (13, 22) for leading through the light (L), wherein in the device (V) there is arranged at least one lens (40) or a lens system. Between the input-side (1) and the output-side coupling body (2) there is arranged an intermediate coupling body (3) with a centric lead-through (34), which in one of the input-side or output-side coupling bodies (1,2) is displaceably and lockably held in a plane, whilst the other input-side or output-side coupling bodies (1,2) in the intermediate coupling body (3) is mounted in an elastically (25) pivotally movable and axially displaceable manner. The device (V) permits a separate angular adjustment or parallel displacement of the input-side and output-side coupling bodies (1,2) relative to one another.

Abstract: The process for the manufacture of the rib waveguide (4) is based on the process steps (a) ion implantation of high-energy light ions into a crystal, (b) the application of a mask to the surface (11.1) of this crystal, which defines strips, and (c), the etching of a rib (41) onto the surface (11.1) of this crystal. The process step (a) (ion implantation) causes the formation of a layer (14) with a reduced refraction index at a depth of some micrometers below the surface of the crystal (11.1). By this refraction index barrier (14), the light in the direction vertical to the surface of the crystal is restricted. The lateral guidance of the light is effected by the lateral limits (43.1) and (43.2) of the rib (41). The process is in particular suitable for the manufacture of waveguides in non-linear optical crystals, e.g., ferro-electric oxides (KNbO3, LiNbO3, etc.) and borates (LBO, BBO, etc.).