Design of nonlinear integrated devices for quantum optics applications / vorgelegt von Matteo Santandrea ; [Erstgutachter: Prof. Dr. Christine Silberhorn, Zweitgutachter: Prof. Dr. Torsten Meier]. Paderborn, 2019
Inhalt
- 0 Erklärung der Selbstständigkeit
- 0 Summary
- 0 Zusammenfassung
- 0 Preface
- 0 Introduction
- 0 List of abbreviations and nomenclature
- Background
- 1 Integrated waveguides
- Ray optics description
- Rigorous mathematical description
- Asymmetric slab waveguide
- Numerical methods
- 2 Nonlinear optics in waveguiding structures
- Nonlinear material response
- Nonlinear coupled-mode theory in waveguides
- Three wave mixing in waveguides
- SFG at perfect phase matching
- Phase matching spectrum of SHG processes under NPDA
- Final remarks
- Understanding and tailoring three wave mixing
- Elements of ultrafast quantum optics
- 3 Nonlinear materials and waveguide fabrication
- Design of nonlinear processes
- 4 Design of nonlinear processes in KTP
- 5 Effect of inhomogeneities in nonlinear systems
- Qualitative model
- Phase matching in inhomogeneous waveguides.
- Mathematical modelling of waveguide inhomogeneities
- Analysis of different types of noises
- Impact of fabrication errors in squeezing generation.
- Impact of fabrication errors on quantum information encoding.
- Impact of fabrication errors on the performance of a bandwidth compressor.
- Reconstruction of sample inhomogeneity
- Correction of fabrication imperfection
- General theory of waveguide inhomogeneities
- 6 Second harmonic losses
- 7 Design of nonlinear processes in LNOI
- Dispersion relations of LNOI waveguides
- Modelling of LNOI waveguides
- Numerical derivation of the dispersion relations
- Dependence of the dispersion relation on the waveguide geometry: a qualitative analysis
- Process engineering in LNOI waveguides
- Pure degenerate PDC states in LNOI
- Identification of the design parameters
- Sensitivity of the PDC process to fabrication errors
- Conversion efficiency of type II PDC
- Analysis of facet reflectivity
- 8 Conclusions
- Appendix