Hsueh Y.-WCheng C.-HFu C.-SWang H.-YHuang B.-JGONG-RU LIN2022-04-252022-04-2520211077260Xhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85096362738&doi=10.1109%2fJSTQE.2020.3033282&partnerID=40&md5=ee464f4019046596328379599391ff92https://scholars.lib.ntu.edu.tw/handle/123456789/607070The all-optical cross-wavelength quadrature amplitude modulation orthogonal frequency-division multiplexing (QAM-OFDM) data switching in the silicon rich silicon carbide (Si-rich SiC) micro-ring (μ-ring) waveguide is demonstrated for the first time by using the two-photon absorption (TPA) induced free carrier absorption (FCA) process. With enlarging the allowable 4-QAM OFDM data bandwidth to 1.16 GHz, the all-optical 4-QAM OFDM pump-to-probe switching with allowable bandwidth of 1.16 GHz can achieve a raw data rate up to 2.32 Gbit/s with forward error correction (FEC) qualified error vector magnitude (EVM), signal-to-noise ratio (SNR), and bit-err-ratio (BER) of 31.9%, 9.92 dB, and 8.7 × 10-4, respectively. With upgrading the bandwidth of electrical pre-amplifier to 1.5 GHz, the wavelength-converted probe data can successfully pass the FEC criterion with qualified SNR of 9.49 dB, BER of 1.4 × 10-3 and EVM of 33.5%, to demonstrate the all-optical switching data rate approaching 3 Gbit/s. ? 1995-2012 IEEE.4-QAM OFDMall-optical modulationfree carrier absorptionSiC materialBandwidthBit error rateError correctionForward error correctionLuminescence of organic solidsOptical fiber communicationOptical switchesOrthogonal frequency division multiplexingQuadrature phase shift keyingSilicon carbideSwitchingTwo photon processesWaveguidesAll opticalAll-optical switchingData bandwidthError vector magnitudeFree carrier absorptionMicroringsSilicon richTwo photon absorptionSignal to noise ratiojournal article10.1109/JSTQE.2020.30332822-s2.0-85096362738