CPC H01S 5/42 (2013.01) [H01S 5/06835 (2013.01); H01S 5/04256 (2019.08)] | 4 Claims |
1. A surface emission laser driving method comprising:
generating a plurality of drive pulses to be sequentially outputted to, out of a plurality of surface emission lasers disposed on a same substrate, each of the surface emission lasers selected as light-emission targets, on a basis of the number of surface emission lasers selected as the light-emission targets and a monitoring temperature that is immediately prior to light emission of each of the surface emission lasers selected as the light-emission targets; and
outputting the plurality of generated drive pulses to each of the surface emission lasers selected as the light-emission targets, wherein the monitoring temperature is measured by a temperature sensor that is disposed at a position at which a thermal time constant from an active layer of each of the surface emission lasers becomes shorter than a pulse interval of the plurality of drive pulses.
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