TY - JOUR
T1 - Phase-sensitive QPSK channel phase quantization by amplifying the fourth-harmonic idler using counter-propagating Brillouin amplification
AU - Almaiman, Ahmed
AU - Cao, Yinwen
AU - Mohajerin-Ariaei, Amirhossein
AU - Ziyadi, Morteza
AU - Liao, Peicheng
AU - Bao, Changjing
AU - Alishahi, Fatemeh
AU - Fallahpour, Ahmad
AU - Shamee, Bishara
AU - Akasaka, Youichi
AU - Ikeuchi, Tadashi
AU - Wilkinson, Steven
AU - Touch, Joseph D.
AU - Tur, Moshe
AU - Willner, Alan E.
N1 - Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/9/15
Y1 - 2018/9/15
N2 - We experimentally demonstrate all-optical phase-sensitive quantization of a 10–20 Gbaud quadrature phase-shift keying (QPSK) signal's phase without an active phase-locked loop (PLL) by utilizing Brillouin amplification (BA) to amplify the fourth-harmonic idler without path separation, allowing the pump, signal, third-harmonic idler and amplified fourth-harmonic idler to remain synchronized in the phase. We observe up to 65% reduction in phase noise and 4.6 dB gain at a bit-error rate (BER) of 10−4 over 36 min of continues operation.
AB - We experimentally demonstrate all-optical phase-sensitive quantization of a 10–20 Gbaud quadrature phase-shift keying (QPSK) signal's phase without an active phase-locked loop (PLL) by utilizing Brillouin amplification (BA) to amplify the fourth-harmonic idler without path separation, allowing the pump, signal, third-harmonic idler and amplified fourth-harmonic idler to remain synchronized in the phase. We observe up to 65% reduction in phase noise and 4.6 dB gain at a bit-error rate (BER) of 10−4 over 36 min of continues operation.
KW - All-optical phase regeneration
KW - Four-wave mixing
KW - Phase-sensitive amplification
KW - Wavelength conversion
UR - http://www.scopus.com/inward/record.url?scp=85045421226&partnerID=8YFLogxK
U2 - 10.1016/j.optcom.2018.04.003
DO - 10.1016/j.optcom.2018.04.003
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AN - SCOPUS:85045421226
VL - 423
SP - 48
EP - 52
JO - Optics Communications
JF - Optics Communications
SN - 0030-4018
ER -