Abstract
The new concept of Photon Transport Transistor (PTT) as an optoelectronic amplification device
has been proposed by the researcher at IBM Research Laboratory in 1989, as an alternative to
Bipolar Junction Transistor (BJT). The PTT is composed by the opto-coupling of light emitting
device and light receiving one. In this paper, we analyze the amplification function of PTT from
the viewpoint of electronic equivalent circuit. For this purpose, we newly derive the AC
(Alternating Current) based F parameter of the PTT emitter common circuit with fixed bias for
AC small signal amplifier, using the VI characteristic equations of light emitting diode (LED) and
photo diode (PD). Also, we discuss the amplification degrees of current, voltage, and power in
the amplifier, using the derived parameter.
https://ror.org/03tgsfw79 
