Driving method and driving circuit of light source apparatus

Details Driving method and driving circuit of light source apparatus Driving method and driving circuit of light source apparatus

2006-08-01

2006-08-01

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular component circuitry

Controlling current or voltage to laser

C372S029015, C372S029016, C372S029023, C372S038020, C372S033000, C372S034000, C372S038100

Reexamination Certificate

active

07085297

ABSTRACT:
A driving method of a semiconductor laser having an active layer region, a phase adjustment region and a distributed Bragg reflector region includes the steps of: calculating an average value of multipulse modulation currents modulated between a peak current and a bottom current input to said active layer region; calculating a difference between the average value of the multipulse modulation currents and a bias current input to the active layer region; and applying a first compensation current to the phase adjustment region when the multipulse modulation current is input to the active layer region, and applying a second compensation current corresponding to the difference to the phase adjustment region when the bias current is input to the active layer region.

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English Language Abstract of JP 2001-326418.
Yamamoto et al., “Milliwatt-order blue-light generation in a periodically domain-inverted LiTaO3waveguide”, Optics Letters, vol. 16, No. 15, pp. 1156-1158 (Aug. 1, 1991).

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