Laser driver circuit for burst mode transmission and fabrication method thereof
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United States of America Patent
Stats
-
Jan 29, 2008
Grant Date -
Jul 14, 2005
app pub date -
Aug 24, 2004
filing date -
Jan 14, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for making a laser driver circuit for burst mode is described. The method includes the following steps: First, a continuous mode laser driver circuit is selected, the chip having a temperature compensation output, a bias current setting input, and a reference current setting input. Next, the temperature compensation signal is converted to a reference current setting signal via a first bias adjustment circuit, and the reference current setting signal is input to the reference current setting input. Then, the bias current setting input is connected to ground via a second bias adjustment circuit. The reference current setting signal automatically adjusts the high level and the low level of the eye diagram of the laser according to the environmental temperature, so that the high level and the low level are kept stable to reduce the bit error rate in transmission.
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