- Electrical and Electronic Engineering - Research Publications
Electrical and Electronic Engineering - Research Publications
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ItemAnalytical expressions for nonlinear transmission performance of coherent optical OFDM systems with frequency guard bandGAO, GUANJUN ; CHEN, XI ; SHIEH, WILLIAM ( 2012)
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ItemAnalytical expressions for nonlinear transmission performance of coherent optical OFDM systems with frequency guard bandGAO, GUANJUN ; CHEN, XI ; SHIEH, WILLIAM ( 2012)
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ItemCoherent optical DFT-Spread OFDM transmission using orthogonal band multiplexingYang, Q ; He, Z ; Yang, Z ; Yu, S ; Yi, X ; Shieh, W (OPTICAL SOC AMER, 2012-01-30)Coherent optical OFDM (CO-OFDM) combined with orthogonal band multiplexing provides a scalable and flexible solution for achieving ultra high-speed rate. Among many CO-OFDM implementations, digital Fourier transform spread (DFT-S) CO-OFDM is proposed to mitigate fiber nonlinearity in long-haul transmission. In this paper, we first illustrate the principle of DFT-S OFDM. We then experimentally evaluate the performance of coherent optical DFT-S OFDM in a band-multiplexed transmission system. Compared with conventional clipping methods, DFT-S OFDM can reduce the OFDM peak-to-average power ratio (PAPR) value without suffering from the interference of the neighboring bands. With the benefit of much reduced PAPR, we successfully demonstrate 1.45 Tb/s DFT-S OFDM over 480 km SSMF transmission.
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ItemCharacterization of Fiber Nonlinearity and Analysis of Its Impact on Link Capacity Limit of Two-Mode FibersCHEN, XI ; LI, AN ; GAO, GUANJUN ; AL AMIN, ABDULLAH ; SHIEH, WILLIAM ( 2012)
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ItemWavelet Packet Transform-Based OFDM for Optical CommunicationsLi, A ; Shieh, W ; Tucker, RS (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2010-12-15)
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ItemReal-Time 2.5 GS/s Coherent Optical Receiver for 53.3-Gb/s Sub-Banded OFDMKaneda, N ; Yang, Q ; Liu, X ; Chandrasekhar, S ; Shieh, W ; Chen, Y-K (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2010-02-15)