A laser device has a laser diode with an optical resonator. The resonator has
an
exit side for emitting light into an optical system. A monitor diode is provided
and has a light-sensitive face for measuring optical quantities of the laser diode.
The light-sensitive face of the monitor diode is optically coupled to a backside
of the laser diode, on the other side from the light exit side of the resonator,
the backside also emitting light. This configuration permits a space-saving SMD
layout for the laser device.
