Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7924995 | Optics Communications | 2018 | 5 Pages |
Abstract
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 10â4 over 36Â min of continues operation.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Ahmed Almaiman, Yinwen Cao, Amirhossein Mohajerin-Ariaei, Morteza Ziyadi, Peicheng Liao, Changjing Bao, Fatemeh Alishahi, Ahmad Fallahpour, Bishara Shamee, Youichi Akasaka, Tadashi Ikeuchi, Steven Wilkinson, Joseph D. Touch, Moshe Tur, Alan E. Willner,