Optical communication module and optical communication device
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United States of America Patent
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-
Aug 6, 2013
Grant Date -
Oct 13, 2011
app pub date -
Apr 12, 2011
filing date -
Apr 13, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An optical communication module and an optical communication device including the same are provided. For example, a first semiconductor chip on which a laser diode is formed and a second semiconductor chip on which a laser diode driver circuit, etc. for subjecting the laser diode to drive by current are formed are mounted on a package printed circuit board to be close to each other. Temperature detecting means is further formed on the second semiconductor chip (laser diode driver circuit, etc.). The temperature detecting means detects a temperature variation ΔT of the first semiconductor chip (laser diode) transmitted via a wiring in the package printed circuit board and controls the magnitude of the driving current of the laser diode driver circuit based on a detection result.
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