DRIVER CIRCUIT FOR THE DIRECT MODULATION OF A LASER DIODE
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United States of America Patent
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Issued Date -
Nov 17, 2011
app pub date -
May 14, 2010
filing date -
May 14, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A driver circuit for a laser diode provides drive signals to the electrodes of the laser diode based on a pulsed input signal. An input receives the pulsed input signal and launches it into an amplification stage which preferably includes dual amplifiers, a buffering stage and a biasing stage. The output of the laser diode is an optical signal that reproduces the pulsed input signal with high fidelity and low amplitude noise. In one embodiment, the input separates the pulsed input signal into two signal components, launched in respective inverting and non-inverting branches which each include successive amplification, buffering and biasing stages.
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