Optical transmitter and method for transmitting optical signal
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United States of America Patent
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Issued Date -
Dec 29, 2005
app pub date -
Jun 15, 2005
filing date -
Jun 16, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
There are provided an optical transmitter and a method for transmitting an optical signal, which realizes an optimum desired temperature arrival time without changing a Peltier element size, a drive current and a drive voltage, and which is stabilized by control having a sufficient phase margin. Different loop filters for heating and cooling are provided for a control loop of the Peltier element on which a laser diode is mounted, and the respective appropriate loop filters are selected and used on the basis of heating or cooling information.
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