Nonlinear optical frequency conversion to & from the mid-infrared in Ti:PPLN waveguides for spectroscopy and free-space optical communication / Kai-Daniel Frank Büchter. 2011
Inhalt
- Introduction
- Strip Waveguides for Nonlinear Frequency Conversion
- Theoretical Treatment of Periodically Poled Waveguides
- Waveguide Sample Fabrication
- Summary and Discussion
- Mid-infrared Source based on Difference-Frequency Generation
- Theoretical Modelling
- Experimental Setup
- Sample Characterization & Discussion of Results
- Mid-infrared Mode Distributions
- Nonlinear Conversion Efficiency
- Wavelength Characteristics
- Output-Power Stability
- Summary
- Hybrid Up-Conversion Detector
- Theoretical Background
- Up-Conversion Detector based on Sum-Frequency Generation
- Up-conversion Detector based on Difference-Frequency Generation
- Additional Considerations
- Summary
- Absorption Spectroscopy using Frequency Conversion
- Basics of Trace Gas Spectroscopy
- Absorption Spectroscopy using DFG-MIR Source
- Absorption Spectroscopy using DFG-MIR Source and SFG-UCD
- Frequency Modulation Spectroscopy using DFG Source and SFG-UCD
- Summary
- Free-space Optical Transmission in the MIR using Wavelength Conversion
- Atmospheric Transmission Impairments
- Down- and Up-Conversion for Free-Space Optical Transmission
- Evaluation of Free-Space Data-Transmission
- Summary
- Conclusions
- Waveguide and Poling Mask Design
- Modeling of Lens Dispersion
- Waveguide Inhomogeneity Calculations
- Reference HgCdTe Detector Characterization
- Atmospheric Transmission Impairments