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60-Ghls Optical OFDM transmissions over 100m OM1 MMF IMDD system are experimentally demonstrated utilizing 10-GHz EML intensity modulators at single 1550nm wavelength. Adaptive subcarrier bit and power loading schemes are also employed to defeat channel fading in a simple and straightforward center launching configuration. Experimental results show a good feasibility in short reach data center interconnections.
A sampling frequency offset (SFO) estimation and compensation scheme for asynchronous optical intensity-modulation and direct-detection orthogonal frequency division multiplexing (OFDM) systems by using one single pilot subcarrier is proposed. Experimental demonstrations are also under taken to evaluate the performance of the mentioned scheme, and results show that precise SFO estimation with an accuracy...
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