A Performance Optimization Method for SOA-MZI Devices

Wang, J.P.; Savage, S.J.; Hamilton, Scott A.; Ippen, Erich P.; Mu, R.-M.; Wang, Hongsheng; Sarathy, J.; Stefanov, Boris B.

doi:10.1109/ofc.2007.4348747

Cited by 5 publications

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“…For such sampling mixers, an optical switch is needed. A Semiconductor Optical Amplifier-Mach-Zehnder interferometer (SOA-MZI) is an integrated all-optical switch which can operate at ultrafast speeds [6]. For switching, a differentially-driven SOA-MZI provides superior performances compared to single-ended operation [7].…”

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confidence: 99%

Sampling rate influence in up and down mixing of QPSK and OFDM signals using an SOA‐MZI in a differential configuration

2018

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Up and down frequency conversions in the range of 0.5-39.5 GHz are performed by using a Semiconductor Optical Amplifier-Mach-Zehnder interferometer (SOA-MZI) in a differential configuration as a sampling mixer. The authors show that increasing the sampling frequency by a ratio of 2.5 (from 7.8 to 19.5 GHz) improves the efficiency and the quality of the optical transmission of QPSK and OFDM signals due to a better signal level and a lower aliased noise power when the sampling rate is higher. At the high sampling rate, the obtained EVM is sufficiently low for allowing data bit rates higher than 1 Gbit/s and 245 Mbit/s, respectively, for QPSK and OFDM modulated data.

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confidence: 99%