Surface emitting laser, laser device, detection device, and mobile object

Abstract

A surface emitting laser includes: multiple active layers; a resonator including a tunnel junction between the multiple active layers; multiple reflectors sandwiching the resonator between the multiple reflectors; and an electrode pair connected to a power supply device through which a current is injected into the multiple active layers. The surface emitting laser does not oscillate a laser beam during a current injection period in which the power supply device injects the current into the multiple active layers through the electrode pair; and oscillates the laser beam during a current decrease period after the current injection period. The current injected into the multiple active layers during the current decrease period is lower than the current injected into the multiple active layers during the current injection period.

Dependencies are inferred from the claim text.