Jan, Omar: Implementation and simulation study of coherent optical orthogonal frequency-division multiplexing systems. 2015
Inhalt
- Abstract
- Zusammenfassung
- Acknowledgements
- List of Figures
- Abbreviations
- Symbols
- 1 Introduction
- 2 Fundamentals of CO-OFDM
- 2.1 Principles of OFDM
- 2.1.1 Principle of Orthogonality
- 2.1.2 Discrete and Fast Fourier Transform for OFDM
- 2.1.3 Cyclic Prefix (CP)
- 2.1.4 Spectral Efficiency (SE)
- 2.2 DSP Algorithms for CO-OFDM System
- 3 Simulation Study of CO-OFDM Systems
- 3.1 Study of Fiber Nonlinearities in CO-OFDM Systems
- 3.1.1 RF-pilot (RFP) method for XPM mitigation
- 3.1.2 Partial Carrier Filling (PCF) Technique for SPM mitigation
- 3.1.2.1 Concept of the Partial Carrier Filling (PCF) Technique
- 3.1.2.2 Simulation Setup
- 3.1.2.3 Simulation Results
- 3.1.3 Subcarrier-Index Modulation (SIM) in CO-OFDM systems
- 3.2 Study of LPN Impact on CO-OFDM systems with 16-QAM and 1024-point IFFT/FFT
- 4 Implementation of CO-OFDM Systems
- 4.1 Transmission setup of the CO-OFDM system
- 4.2 Study of DFT-spread CO-OFDM systems
- 4.2.1 Concept of DFT-Spread OFDM
- 4.2.2 Concept of Non-iterative Interpolation Based LPN Mitigation
- 4.2.3 Optical back-to-back Experiments on DFT-spread OFDM Systems
- 4.2.4 Subband Spectral Shaping in DFT-spread CO-OFDM Systems
- 4.3 Study of the Impact of LPN on CO-OFDM systems with a DFB Laser
- 5 Summary
- A Experimental Components
- A.1 Xilinx Virtex-4 FPGAs
- A.2 MICRAM DACs
- A.3 Avanex SD50-DP IQ-MZM
- A.4 ECL and DFB lasers
- A.5 Polarization Controllers and 90 Optical Hyprid
- A.6 Photodiods and Oscilloscope
- A.7 High Speed Receiver
- A.8 Fiber Spans
- Bibliography