The aim of this work is to review the latest developments in glass science and technology. It presents various types of glass, of both academic and technological importance, in which the host is doped with rare-earth ions.

Dedicated Contents Forward Preface Contributors CHAPTER 1 1. Introduction 2. Ions in Solids 3. Fiber Lasers 4. Lanthanide Glass Spectroscopy 5. Lanthanide Fiber Lasers 6. Applications of Fiber Lasers References CHAPTER 2 1. Introduction 2. Experiment Procedures 4. Results and Discussion 5. Conclusions Acknowledgment. References CHAPTER 3 1. Introduction 2. Er3+-Activated Silicate Glasses. 3. Alumina Co-Doping: Local Environment Modification and Spectroscopic Properties Enhancement 4. Sensitisation of Erbium Luminescence 5. Waveguide Configuration and Circuit Patterning. 6. Conclusions Acknowledgments. References CHAPTER 4 1. Introduction 2. Material Synthesis 3. Spectral Properties of Rare Earth Ions Doped Bismuth Borate Glasses 4. Conclusion Acknowledgments. References CHAPTER 5 1. Introduction 2. Properties of the Fluoride Glasses 3. Rare Earth Ions in Solids 4. Spectral Intensities of the Rare Earth Ions in Fluoride Glasses 5. Non-Radiative Transitions of Rare Earth Ions in Fluoride Glasses 6. Infrared-to-Visible Upconversion in Fluoride Glasses 7. Rare Earth Local Structures in Fluoride Glasses 8. Conclusions Acknowledgments References CHAPTER 6 1. Introduction 2. Experimental Procedures in General 3. Emission Properties 4. Local Structure Around Rare-Earth Ions 5. SUMMARY. ACKNOWLEDGMENT. REFERENCES CHAPTER 7 1. Introduction 2. Experimental Studies 3. Luminescence Properties of ZBS Glasses Doped with 4. Luminescence Properties of LBG Glasses Doped with 5. Conclusions Acknowledgment. References CHAPTER 8 1. Introduction 2. Materials and Methods 3. Theoreitical Background 4. Results and Discussion 5. Conclusion. Acknowledgment. References