This paper describes the optical circuit that enables to extract addre
ss from a transmitted cell in an all-optical manner. Nonlinear optical
loop mirrors (NOLM's) are used as all-optical switches in order to co
nfirm the operation of the proposed circuit. The control pulses synchr
onized with address bits are generated from the transmitted cell. The
address bits are successfully extracted without any electronic control
circuit, The factors that limit an attainable bit rate are discussed.
If we use NOLM composed of a 2-km-long fiber, 110 Gb/s is attainable
for the 4 ps FWHM input pulse with RZ format.