Content

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   Abstract
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   Contents
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  1 Introduction
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   1.1 Background
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   1.2 Motivation
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   1.3 Organisation of Thesis
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  2 Waveguide Fabrication and Characterization
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   2.1 Introduction
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  2.2 Fabrication of Ti:Tm:LiNbO3 waveguide
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   2.2.1 Tm Diffusion Doping
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   2.2.2 Fabrication of Ti Waveguide
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  2.3 Characterization of Ti:Tm:LiNbO3 waveguide
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   2.3.1 Waveguide Mode Intensity Distribution
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   2.3.2 Scattering Losses
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   2.3.3 Thulium Depth Profile
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   2.3.4 Absorption Spectra
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   2.3.5 Fluorescence Spectrum
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   2.3.6 Transition Cross Sections
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   2.4 Conclusions
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  3 Ti:Tm:LiNbO3 Waveguide Amplifier
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   3.1 Introduction
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  3.2 In-band Pumping Scheme
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   3.2.1 General Considerations
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   3.2.2 Choice of Pump Wavelength
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   3.3 Modeling
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   3.3.1 Gain Spectra
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   3.3.2 Power Characteristics
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   3.3.3 Double Pass Pumping
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   3.3.4 Further Comments
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  3.4 Experimental Investigations
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   3.4.1 Experimental Setup
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   3.4.2 Experimental Results
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   3.5 Discussion
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   3.5.1 Comparison of Experimental and Modeling Results
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   3.5.2 Amplifiers for Laser Applications
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   3.5.3 Conclusions
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  4 Ti:Tm:LiNbO3 Waveguide Laser
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   4.1 Introduction
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   4.2 Laser Cavity
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   4.3 Experimental Setup
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  4.4 Power Characteristics
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   4.4.1 High-Q Operation at s = 1890 nm
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   4.4.2 Low-Q Operation at s = 1850 nm
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   4.4.3 Relaxation Oscillations
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   4.5 Spectral Properties
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   4.5.1 Emission at 1890 nm
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   4.5.2 Radio Frequency Spectrum of Laser Output
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   4.5.3 Emission at 1850 nm
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   4.6 Optimization
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   4.7 Conclusions
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  5 Conclusions And Outlook
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   5.1 Conclusions
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   5.2 Outlook
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  A Thulium Doped Waveguides for Quantum Memory Applications
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   A.1 Waveguide Fabrication
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   A.2 Waveguide Characterization
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   A.3 Quantum memory
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   B Optical Spectrum of Ti:Er:LiNbO3 Waveguide Laser
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   6 Acknowledgements
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   Bibliography