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There are several ESD protection means commonly
employed for the purpose of protecting laser diodes. In order to locate
the protection means close to the laser diode, these protection means are
often embodied within a “head” that may be located remotely from the laser
diode driver circuitry.
The next few web pages describe ESD protection means
that are commonly used, and generally why they are not effective at
protecting a laser diode from ESD.
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ESD polarity terminology used on this
web site
The term “positive-ESD” is used to
mean electrostatic discharge (ESD) whose voltage polarity would tend
to forward-bias a laser diode. “Negative-ESD,” means ESD whose
voltage polarity would tend to reverse-bias a laser diode. |
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