Electroabsorption modulator integrated distributed feedback laser with integrated semiconductor optical amplifier, and driving method for same
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United States of America Patent
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Nov 13, 2018
Grant Date -
Jan 25, 2018
app pub date -
Feb 16, 2016
filing date -
Feb 23, 2015
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Abstract
The present invention relates to a driving method for an SOA integrated EA-DFB laser monolithically-integrating a DFB laser portion, an EA modulator portion and an SOA portion, on a same substrate, wherein an electric current ISOA is injected into the SOA portion within a range of a power consumption not exceeding a total amount of a power consumption eliminated in the DFB laser portion of the SOA integrated EA-DFB laser and a power consumption eliminated in the EA modulator portion of the SOA integrated EA-DFB laser by eliminating an elimination amount ΔIDFB from a maximum injection electric current into a DFB laser portion of an EA-DFB laser allowable in a case of mounting the EA-DFB laser on an optical transmission module.
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