Photoptics 2014 (eBook)

Preface 6
Organization 8
Contents 13
Contributors 15
Part I Optics 19
1 Distortions and Their Effect on Signal Transmission in Coherent-OFDM Systems 20
Abstract 20
1.1 Introduction 20
1.2 Principle of OFDM 21
1.3 Simulation 23
1.3.1 Distortion of Mach-Zehnder Modulator 24
1.3.2 Phase Noise of the Lasers 26
1.3.3 Dispersions of the Fiber 27
1.3.4 Fiber Nonlinearity 31
1.4 Conclusions 32
References 33
2 DQPSK Optical Networks Impaired by Multi Line Rates and Mixed Modulation Formats Interferers 35
Abstract 35
2.1 Introduction 35
2.2 System Description 36
2.2.1 Optical DQPSK Receiver 37
2.2.2 Monte Carlo Simulation 38
2.3 Numerical Results 39
2.3.1 Single and Multiple Interference in Multi-rate and Multi-format Scenarios 40
2.3.2 Duty-Cycle Variation 43
2.3.3 Extinction Ratio Variation 45
2.4 Conclusions 45
Acknowledgments 46
References 46
3 Insulation Quality Assessment of Transformers Using Laser Raman Spectroscopy 47
Abstract 47
3.1 Introduction 47
3.2 Experimental 48
3.2.1 Raman Spectroscopy 48
3.2.2 Sample Preparation 49
3.3 Results and Discussion 49
3.3.1 Raman Spectrum of Oil 49
3.3.2 Raman Spectra of C2H2 and CO Dissolved in Oil 51
3.3.3 Raman Spectrum of Furfural in Oil 52
3.4 Conclusions 53
References 54
4 High Performance in Random Laser Using a Colloidal Suspension of TiO2@Silica Nanoparticles 55
Abstract 55
4.1 Introduction 55
4.2 Experimental Section 56
4.2.1 Chemical Synthesis and Characterization 56
4.2.2 Experimental Setup of Random Laser 57
4.3 Results and Discussion 58
4.3.1 Silica Shell onto TiO2 Nanoparticles 58
4.3.2 Random Laser Action 59
4.3.3 Photodegradation Study 62
4.4 Conclusions 63
Acknowledgments 64
References 64
5 Gamma-Ray Dose-Rate Dependence on Radiation Resistance of Specialty Optical Fiber with Inner Cladding Layers 66
Abstract 66
5.1 Introduction 66
5.2 Experimental Procedure 67
5.3 Results and Discussion 70
5.4 Conclusions 79
Acknowledgements 79
References 79
6 Optical Modelling of Luminescent Cascade Systems with the Adding-Doubling Method 81
Abstract 81
6.1 Introduction 82
6.2 Radiative Transfer Equation 83
6.3 The Adding-Doubling Method 86
6.4 Adding-Doubling Versus Monte Carlo Simulations 89
6.4.1 Accuracy Comparison 91
6.4.2 Computation Time Comparison 92
6.5 Conclusions 93
Acknowledgements 93
References 93
7 An Optical System for Comparing the Speeds of Starlights 95
Abstract 95
7.1 Introduction 96
7.2 System Design 98
7.3 System Description 100
7.3.1 The Optical System Using a Rotating Mirror and a Slit 100
7.3.2 The Optical System Employing a Chopper 101
7.4 Measurement Results 102
7.5 System Error Analysis 104
7.6 Conclusions 107
Acknowledgements 108
References 108
8 Performance Evaluation of Optical Noise-Impaired Multi-band OFDM Systems Through Analytical Modeling 109
Abstract 109
8.1 Introduction 109
8.2 System Description 110
8.3 Analytical Modeling 112
8.4 Performance Evaluation Metric 118
8.5 Numerical Results 118
8.6 Conclusions 121
Acknowledgements 122
References 122
Part II Photonics 123
9 Delayed Luminescence in Relation to the Germination and Vigour of Coffee Seeds: Initial Series with C. Arabica Samples 124
Abstract 124
9.1 Introduction 124
9.2 Materials and Methods 125
9.3 Results and Discussion 127
9.4 Conclusions 130
Acknowledgements 131
References 131
10 Optical Fibre Probe with Lateral Interface 133
Abstract 133
10.1 Introduction 133
10.2 Fibre-Optic Probe Model 134
10.3 Simulation Results 136
10.3.1 Normalised Received Power eta probe 136
10.3.2 Evaluation Under Water Environment 138
10.3.3 Evaluation of Spatially Distributed Targets 138
10.4 Conclusions 142
Acknowledgements 143
References 143
Part III Lasers 144
11 Compressor Design for a 30 fs-300 J 10 PW Ti:Sapphire Laser: Divided-Compressor with an Object-Image-Grating Self-tiling Tiled Grating 145
Abstract 145
11.1 Introduction 145
11.2 Compressor Structure 146
11.3 Parameter Optimization 147
11.3.1 The 1st Stage Compressor 147
11.3.2 The 2nd Stage Compressor 150
11.3.3 Dispersion and B Integral 151
11.4 Tiled Grating 152
11.5 Conclusions 154
Acknowledgements 154
References 154
12 Propagation of a Short Subterahertz Pulse in a Plasma Channel in Air Created by Intense UV Femtosecond Laser Pulse 155
Abstract 155
12.1 Introduction 155
12.2 Kinetics of Photoelectrons in a Plasma Channel Produced in Air by the Ultrashort UV Laser Pulse 156
12.3 Propagation and Amplification of the Radio-Frequency Pulses in the Plasma Waveguide 164
12.4 Conclusions 166
Acknowledgements 166
References 167
Author Index 168
Subject Index 170