%0 Journal Article %T OFDM signal down frequency conversion based on a SOA-MZI sampling mixer using differential modulation and switching architectures %+ Equipe Security, Intelligence and Integrity of Information (Lab-STICC_SI3) %+ École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne) %A Termos, Hassan %A Mansour, Ali %< avec comité de lecture %@ 0030-4026 %J Optik %I Elsevier %V 245 %P 167761 %8 2021-11 %D 2021 %R 10.1016/j.ijleo.2021.167761 %K Architecture %K Error correction %K Fiber amplifiers %K Mixers (machinery) %K Modulation %K Optical frequency conversion %K Optical switches %K Radio-over-fiber %K Semiconductor optical amplifiers %K Switching %Z Engineering Sciences [physics]/Signal and Image processingJournal articles %X A simulation performance analysis of a semiconductor optical amplifier Mach–Zehnder interferometer (SOA-MZI) sampling mixer used as a frequency down converter is presented by employing differential modulation and switching architectures. A clock pulse signal, generating 2 ps-width pulses at a sampling frequency of 13 GHz, is used as a sampling signal. Two optical carriers, intensity-modulated by a sinusoidal signal at 79 and 80 GHz are simultaneously down converted to 1 and 2 GHz, respectively. For the differential modulation architecture, conversion gains of about 34 and 32 dB are demonstrated for the frequency down conversion to 1 and 2 GHz, respectively. Besides, the conversion gain of 20 dB is achieved for down conversion from 79 to 1 GHz for the differential switching architecture. Furthermore, signals modulated by an orthogonal frequency division multiplexing (OFDM) complex modulation format at different bit rates are also down converted from 79 to 1 GHz and from 80 to 2 GHz and their error vector magnitude (EVM) is evaluated and compared. A maximum bit rate of about 8 Gbps satisfying the forward error correction (FEC) limit is fulfilled using differential modulation and switching architectures. %G English %2 https://ensta-bretagne.hal.science/hal-03327443/document %2 https://ensta-bretagne.hal.science/hal-03327443/file/Termos2021.pdf %L hal-03327443 %U https://ensta-bretagne.hal.science/hal-03327443 %~ UNIV-BREST %~ INSTITUT-TELECOM %~ ENSTA-BRETAGNE %~ CNRS %~ UNIV-UBS %~ ENSTA-BRETAGNE-STIC %~ ENIB %~ LAB-STICC %~ INSTITUTS-TELECOM %~ LAB-STICC_SI3 %~ LAB-STICC_T2I3