Vertical resonator laser diode, useful for a laser indicator or pointer, has a partially transparent Bragg reflector layer sequence with a current aperture for delimiting the active light emitting region

摘要

A vertical resonator laser diode (1) comprises a partially transparent Bragg reflector layer sequence with a current aperture (42) for limiting the active light emitting region (3b). A vertical resonator laser diode (1) comprises an active layer sequence between two Bragg reflector layer sequences which consist of mirror pairs and which form a laser resonator, the two Bragg reflector layer sequences and the active layer sequence being arranged between two electrical contact layers (7). One of the Bragg reflector layer sequences is partially transparent to the laser radiation produced in the active layer sequence and has a current aperture (42) for limiting the pumped active region (3b) of the active layer sequence by bundling of the operating current flowing through the active layer sequence during laser diode operation. An Independent claim is also included for a laser indicator or laser pointer including the above vertical resonator laser diode.