Applications of ultrashort pulses at different pumping wavelengths in various field of science and technology needs simple stat- of-the-art setups for the generation of high quality short temporal duration pulses. This book provides information on the existing optical pulse compression techniques, drawbacks occurred in each technique through the respecting nonlinear phenomenon responsible for the pulse propagation.
Generating high energy few-cycle pulses in the visible and near-infrared regions of the electromagnetic spectrum has become great interest for numerous applications. Hence, it requires pulse compression techniques to get few-cycle pulses at any desired wavelength with greater simplicity. There is no book currently available in market to understand compression techniques and their physical mechanism through optical fiber. This book provides information on various pulse compression techniques in the aspect of theoretical modelling as well as experiment which helps the reader to acquire a knowledge on the basic concepts of pulse compression.
This book describes the existing nonlinear pulse compression techniques to achieve femtosecond/attosecond pulses. It includes the topics such as photonic crystal fiber, pulse propagation in the fiber, numerical tools for the analysis of pulse propagation and compression, applications of ultrashort pulses, ultrashort pulse generation techniques, merits and demerits of each compression scheme.
The key audiences for this book include students, researchers, and scientists in photonics and nonlinear fiber optics.
Key Features:
- Includes the nonlinear pulse compression techniques to achieve femtosecond/attosecond pulses.
- Explores topics such as photonic crystal fiber and pulse propagation in the fiber.
- Includes numerical tools for the analysis of pulse propagation and compression.
- Discusses applications of ultrashort pulse generation techniques.
- Provides useful end-of-chapter summaries.
Author(s): R. Vasantha Jayakantha Raja
Series: IOP Series in Advances in Optics, Photonics and Optoelectronics
Publisher: IOP Publishing
Year: 2022
Language: English
Pages: 186
City: Bristol
PRELIMS.pdf
Preface
Acknowledgements
Author biographies
R Vasantha Jayakantha Raja
A Esther Lidiya
CH001.pdf
Chapter 1 Introduction
1.1 Ultrashort pulses
1.2 Characteristics of optical pulses
1.3 Generation of broadband spectra
1.4 Time–bandwidth product
1.5 Applications of ultrashort pulses
1.5.1 Frequency metrology
1.5.2 Optical coherence tomography
1.5.3 Wavelength-division multiplexing
1.5.4 Materials processing
1.5.5 Medicine
1.5.6 Fusion energy
1.5.7 High-harmonic generation
1.6 Ultrashort-pulse-generation techniques
1.6.1 Mode-locking techniques
1.7 Pulse compression
1.7.1 Linear pulse compression
1.7.2 Nonlinear pulse compression
1.8 Experiments with pulse-compression techniques
1.9 Organization of this book
References
CH002.pdf
Chapter 2 Photonic crystal fiber
2.1 Optical fiber
2.2 Guiding mechanism of optical fiber
2.3 Optical fiber construction
2.4 Modes in optical fiber
2.5 Normalized frequency (V number) of a core
2.6 Transmission window
2.7 Pulse compression in optical fiber
2.8 Photonic crystal fiber
2.8.1 Types of photonic crystal fiber
(i) Photonic bandgap fiber
(ii) Index-guiding PCF
2.9 Fabrication of photonic crystal fiber
2.10 Material selection for PCF modeling
2.11 Advantages
2.12 Pulse compression in PCF
References
CH003.pdf
Chapter 3 Theory and modeling of photonic crystal fiber
3.1 Numerical methods
3.2 The fully vectorial effective index method
3.3 Group velocity dispersion (GVD)
3.4 Mode parameters of PCF
3.5 Linear properties of photonic crystal fiber
3.6 Nonlinear properties of photonic crystal fiber
3.7 Finite-element method
3.7.1 Perfectly matched layer
3.7.2 Photonic crystal fiber parameters
References
CH004.pdf
Chapter 4 Soliton propagation
4.1 Soliton
4.2 Nonlinear propagation in optical fiber
4.2.1 Polarization response
4.2.2 Nonlinear Schrödinger equation
4.2.3 Deriving the nonlinear Schrödinger equation
4.2.4 Higher-order nonlinear effects
4.3 Split-step Fourier method
4.4 Nonlinear propagation in optical fiber
4.4.1 Linear and nonlinear effects of fiber
(i) Dispersion
(ii) Self-phase modulation
(iii) Raman effect
4.4.2 Soliton generation
4.4.3 Modulational instability
4.5 Importance of optical solitons
4.6 Why solitons in photonic crystal fiber?
References
CH005.pdf
Chapter 5 Conventional compression schemes
5.1 Mechanism of pulse compression
5.2 Soliton compression
5.2.1 Second-order soliton compression
5.2.2 Third-order soliton compression
5.3 Quality analysis
5.3.1 Compression factor
5.3.2 Pedestal energy
5.3.3 Quality factor
5.4 Adiabatic compression
5.5 Pulse-parameter equation
5.6 Projection operator method
References
CH006.pdf
Chapter 6 Self-similar compression
6.1 Review of pulse compression
6.2 Pulse compression through self-similar analysis
6.2.1 Why use self-similar scale analysis in pulse compression?
6.2.2 Self-similar analysis
6.2.3 Designing PCF using self-similar analysis
6.2.4 Pedestal-free pulse compression
References
CH007.pdf
Chapter 7 Pulse compression in nonlinear optical loop mirrors
7.1 Introduction
7.2 Nonlinear optical loop mirrors
7.3 Numerical model of an NOLM
7.4 Applications of NOLMs
7.4.1 Amplitude equalizers
7.4.2 Saturable absorbers
7.5 Soliton propagation in NOLMs
7.6 Soliton pulse compression in NOLMs
7.6.1 Demonstration of the technique
7.6.2 Effects of initial soliton order
7.6.3 Effect of initial frequency chirp
7.6.4 Influence of higher-order effects
References
CH008.pdf
Chapter 8 Cascaded compression
8.1 Cascaded compression
8.2 Effect of temperature on chloroform-infiltrated PCF
8.3 Theoretical modeling of cascaded PCF
8.4 Compression through a cascaded PCF
8.5 Quality analysis
References
CH009.pdf
Chapter 9 Supercontinuum compression
9.1 Supercontinuum generation
9.2 Physical mechanisms
9.2.1 Mechanism of supercontinuum generation
(i) Soliton fission
(ii) Modulational-instability-induced supercontinuum generation
9.3 Pulse compression through SCG
9.4 Tunable pulse compression
9.5 Theoretical model
9.5.1 Fiber design
9.5.2 Temperature-dependent pulse compression
References
APPA.pdf
Chapter
Determination of FWHM
APPB.pdf
Chapter
Higher-order soliton compression
APPC.pdf
Chapter
Adiabatic compression
