Correction circuit, drive circuit, light emitting device, and method of correcting current pulse waveform

Correction circuit, drive circuit, light emitting device, and method of correcting current pulse waveform

A correction circuit is provided, which may reduce dullness of a light output waveform due to wavelength detuning. The correction circuit includes an RC time constant circuit. The RC time constant circuit is used to correct a waveform of a current pulse outputted from a current source, the current s...

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Hauptverfasser: MAEDA OSAMU, KOBE KOICHI, ARAKIDA TAKAHIRO, TANIGUCHI TAKEHIRO, DAIO KATSUHISA
Format: Patent
Sprache:chi ; eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
DEVICES USING STIMULATED EMISSION
ELECTRICITY
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creator MAEDA OSAMU
KOBE KOICHI
ARAKIDA TAKAHIRO
TANIGUCHI TAKEHIRO
DAIO KATSUHISA
description A correction circuit is provided, which may reduce dullness of a light output waveform due to wavelength detuning. The correction circuit includes an RC time constant circuit. The RC time constant circuit is used to correct a waveform of a current pulse outputted from a current source, the current source driving a surface-emitting semiconductor laser in a pulsed manner, so that a pulse waveform of light output of the semiconductor laser is approximately a rectangle.
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subjects BASIC ELECTRIC ELEMENTS
DEVICES USING STIMULATED EMISSION
ELECTRICITY
title Correction circuit, drive circuit, light emitting device, and method of correcting current pulse waveform
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