TY - JOUR
T1 - PDM-16QAM vector signal generation and detection based on intensity modulation and direct detection
AU - Chen, Long
AU - Yu, Jianjun
AU - Li, Xinying
N1 - Publisher Copyright:
© 2016 Elsevier B.V. All rights reserved.
PY - 2016/7/15
Y1 - 2016/7/15
N2 - We experimentally demonstrate a novel and simple method to generate and detect high speed polarization-division-multiplexing 16-ary quadrature-amplitude-modulation (PDM-16QAM) vector signal enabled by Mach-Zehnder modulator-based (MZM-based) optical-carrier-suppression (OCS) intensity modulation and direct detection. Due to the adoption of OCS intensity modulation, carrier beating can be avoided at the receiver, and thus polarization de-multiplexing can be implemented by digital-signal-processing-based (DSP-based) cascaded multi-modulus algorithm (CMMA) equalization instead of a polarization tracking system. The change of both amplitude and phase information due to the adoption of OCS modulation can be equalized by DSP-based amplitude and phase precoding at the transmitter. Up to 64-Gb/s PDM-16QAM vector signal is generated and detected after 2-km single-mode fiber-28 (SMF-28) or 20-km large-effective-area fiber (LEAF) transmission with a bit-error-ratio (BER) less than the hard-decision forward-error-correction (HD-FEC) threshold of 3.8×10-3.
AB - We experimentally demonstrate a novel and simple method to generate and detect high speed polarization-division-multiplexing 16-ary quadrature-amplitude-modulation (PDM-16QAM) vector signal enabled by Mach-Zehnder modulator-based (MZM-based) optical-carrier-suppression (OCS) intensity modulation and direct detection. Due to the adoption of OCS intensity modulation, carrier beating can be avoided at the receiver, and thus polarization de-multiplexing can be implemented by digital-signal-processing-based (DSP-based) cascaded multi-modulus algorithm (CMMA) equalization instead of a polarization tracking system. The change of both amplitude and phase information due to the adoption of OCS modulation can be equalized by DSP-based amplitude and phase precoding at the transmitter. Up to 64-Gb/s PDM-16QAM vector signal is generated and detected after 2-km single-mode fiber-28 (SMF-28) or 20-km large-effective-area fiber (LEAF) transmission with a bit-error-ratio (BER) less than the hard-decision forward-error-correction (HD-FEC) threshold of 3.8×10-3.
KW - 16-ary quadrature amplitude modulation (16QAM)
KW - Digital signal processing
KW - Direct detection
KW - Photonic frequency multiplication
KW - Photonic vector signal generation
KW - Polarization division multiplexing (PDM)
UR - http://www.scopus.com/inward/record.url?scp=84961647329&partnerID=8YFLogxK
U2 - 10.1016/j.optcom.2016.03.044
DO - 10.1016/j.optcom.2016.03.044
M3 - Article
AN - SCOPUS:84961647329
SN - 0030-4018
VL - 371
SP - 15
EP - 18
JO - Optics Communications
JF - Optics Communications
ER -