Experimental demonstration of phase-sensitive regeneration of a 10–20 Gb/s BPSK channel without a phase-locked loop using Brillouin amplification

We experimentally demonstrate all-optical phase-sensitive regeneration of a 10–20Gb/s BPSK signal without a phase-locked loop by amplifying the idler using Brillouin amplification. Phase noise reduction of up to 56% along with 11dB gain at BER of 10−5 were observed.