Monolithic integrated optical component including a modulator and a heterojunction bipolar transistor
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United States of America Patent
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Mar 22, 2005
Grant Date -
Aug 15, 2002
app pub date -
Feb 14, 2002
filing date -
Feb 15, 2001
priority date (Note) -
Expired
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Abstract
A monolithic integrated optical component includes a control transistor connected to an electro-optical component including an active waveguide and at least one input waveguide and one output waveguide. The transistor is a heterojunction bipolar transistor including at least one sub-collector layer that is common to a confinement layer of the electro-optical component. The active waveguide of the electro-optical component includes a widened structure under a contact area of the heterojunction bipolar transistor and having substantially the same surface area as the transistor.
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