Laser driver circuit for burst mode transmission and...

Details Laser driver circuit for burst mode transmission and... Laser driver circuit for burst mode transmission and...

2008-01-29

2008-01-29

Rodriguez, Armando (Department: 2828)

Coherent light generators

Particular component circuitry

For driving or controlling laser

C372S038100

Reexamination Certificate

active

07324572

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.

REFERENCES:
patent: 5548435 (1996-08-01), Tahara et al.
patent: 6078150 (2000-06-01), Koyanagi et al.
patent: 7068692 (2006-06-01), Chang
patent: 2002/0075919 (2002-06-01), Tochio
patent: 2002/0118424 (2002-08-01), Miki et al.
patent: 2003/0210917 (2003-11-01), Stewart et al.
patent: 2005/0001152 (2005-01-01), Stewart et al.

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