Abstract: The invention relates to a sealing arrangement for a convertible with a flexible top material for sealing off an outer top material region from a front edge region of a rear storage compartment cover when the top is closed, the sealing arrangement comprising a seal which is arranged between the top and the storage compartment cover and is kept in sealing contact by means of magnetic force.

Abstract: An MFA-MOPA that includes a semiconductor laser with separate master oscillator and trumpet-flared power amplifier regions. Within the trumpet-flared active gain region of the uniformly-pumped power amplifier of the MFA-MOPA device, the density distribution of carriers and reflections of the laser beam are analyzed to determine the output powers at which filamentation and beam degradation due to reflections occur. The shape of the trumpet-flare is optimized to delay the onset of filamentation and the degradation of the output laser beam due to reflections to higher output powers for the MFA-MOPA device.