Simultaneous Label Erasure and Rewriting using a Single Reflective Semiconductor Optical Amplifier for DPSK/ASK Optical Label Switching

In this work, we present the first demonstration of optical label swapping using an RSOA. Specifically, we exploit the high pass filter (HPF) behavior originating from self-gain modulation (SGM) of the saturated RSOA to achieve simultaneous erasure and rewriting of an amplitude-shift-keying (ASK) label. We demonstrate the feasibility of a 1.25 Gb/s amplitude-shift-keying (ASK) label erasure with new label rewrite through direct modulation of the RSOA