Coherent optical OFDM: theory and design.
By William Shieh, Hongchun Bao, Yan Tang. Optics Express, 2008
746 citations recorded by the source corpus.
Coherent optical OFDM (CO-OFDM) has recently been proposed and the proof-of-concept transmission experiments have shown its extreme robustness against chromatic dispersion and polarization mode dispersion. In this paper, we first review the theoretical fundamentals for CO-OFDM and its channel model in a 2x2 MIMO-OFDM representation. We then present various design choices for CO-OFDM systems and perform the nonlinearity analysis for RF-to-optical up-converter. We also show the receiver-based digital signal processing to mitigate self-phase-modulation (SPM) and Gordon-Mollenauer phase noise, which is equivalent to the midspan phase conjugation.
Subfields: Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/46fc76bf65f93f916f50229d2761a3b9e3b78ac4
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Electrical and Electronic Engineering
Citations in the corpus
- Compensation of Dispersion and Nonlinear Impairments Using Digital Backpropagation (2008, methodology): “Recently, backpropagation (BP) was proposed as a universal technique for jointly compensating linear and nonlinear impairments [14], [15].”
- Coherent optical OFDM: has its time come? [Invited] (2008, methodology): “As such, this paper focuses on signal processing, experimentation, and the underlying technologies of CO-OFDM, serving as a complement to our recent invited paper [ 24 ], which concentrates on theory and design.”
- 448-Gb/s Reduced-Guard-Interval CO-OFDM Transmission Over 2000 km of Ultra-Large-Area Fiber and Five 80-GHz-Grid ROADMs (2011, background): “However, without the GI, the ISI due to transmitter bandwidth limitations is not accommodated for, and more complex blind equalization is needed to compensate for the effect of polarization-mode dispersion (PMD) [17].”
- A Survey on OFDM-Based Elastic Core Optical Networking (2013, methodology): “This concept is also referred to as orthogonal-band-multiplexed OFDM (OBM-OFDM) [29], subcarrier multiplexing [30], or cross-channel OFDM (XC-OFDM) [9].”
- The Gaussian Noise Model in the Presence of Inter-Channel Stimulated Raman Scattering (2017, background): “However, as a result it fails to predict certain properties of nonlinear interference such as modulation format dependence [17]–[19], symbol rate dependence [25]–[29], nonlinear phase noise [19], [30], long temporal correlations [18], [19] and the dependence on the memory length of the fiber-optic c”
- Spectrum-efficient and scalable elastic optical path network: architecture, benefits, and enabling technologies (2009, methodology): “Recently, extensive research efforts have been made to develop an optical version of the OFDM in order to overcome the impairments due to chromatic dispersion (CD) and polarization mode dispersion (PMD) in high-capacity long-haul fiber transmission [8, 9].”
- Spectrally Efficient Direct-Detected OFDM Transmission Incorporating a Tunable Frequency Gap and an Iterative Detection Techniques (2009, background): “When combined with polarization division multiplexing technique (PDM-OFDM), the CO-OFDM can further increase spectral efficiency (SE) and relax electronic components’ bandwidth (BW) requirement at both the transmitters and receivers [2], [3].”
- Optical frequency comb technology for ultra‐broadband radio‐frequency photonics (2014, methodology): “At the end of the DSP chain, two analog waveforms are generated and used to drive the two branches of an IQ optical modulator, which is fed by a single CW laser source [157].”