The invention discloses an optical
label and
payload separator based on a
quantum dot
semiconductor optical amplifier (QDSOA). On one hand, by means of high pass characteristics of saturated QDSOA, a low-frequency optical
label in an
optical packet is filtered (repressed) to obtain a
payload signal that is to say erasing the optical
label; on the other hand, by means of
cross gain modulation of the QDSOA, continuous fill-in light with wave length of
lambda 2 is input, and the continuous fill-in light is modulated to an inversion
signal of the
optical packet to obtain an optical label
signal of which
payload is repressed; finally, demultiplexing is performed through
wavelength division multiplexers to separate the optical label and the payload. An experiment shows that the separation of the optical label from the payload is correctly achieved by the optical label and payload separator, the suppression ratio of the separated label and payload is high, and the
eye pattern opening degree is good. According to the optical label and payload separator based on the QDSOA, the structure uses the QDSOA as the center, one
semiconductor laser and two
wavelength division multiplexers are added to finish separation, the structure is simple, meanwhile, the separation is based on modulation frequency of the optical label and the payload, and thereby, influence of
time sequence accuracy on separation can be avoided.