LIGHT EMISSION CONTROL METHOD AND APPARATUS THEREFOR

摘要

PROBLEM TO BE SOLVED: To suppress variation in wavelength by performing control using a thermistor and other control, e.g. control using a wavelength locker in combination.

SOLUTION: An adding circuit 15 sets weighting for the control using the thermistor 10 and the control using the wavelength locker and continuously varies the weighting according to the difference between output power which is detected by a detection part 31 and varies with time and a target value to perform light emission control under the control using the thermistor 10 and the control using the wavelength locker in combination.

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