Chapter 7 Advanced Optical Fibers for High Power Fiber Lasers

1. Introduction

2. Photonic crystal fibers

2.1. Fundamental space-filling mode of photonic crystal cladding

2.2. Single mode and multimode regime of photonic crystal fibers

2.3. Waveguide loss of photonic crystal fibers

2.4. Modeling of photonic crystal fibers

2.5. Mode area scaling with photonic crystal fibers

2.6. Rare-earth-doped glass for large-core photonic crystal fibers

2.7. Double-clad photonic crystal fibers with high NA air-clad for pump guidance

2.8. Progress of active large-core photonic crystal fibers

3. Leakage channel fibers

3.1. Leakage channel fibers with air holes

3.2. All-glass leakage channel fibers

3.3. Polarization maintaining all-glass leakage channel fibers

3.4. Characterization of mode losses in all-glass leaky channel fibers

3.5. Ytterbium-doped all-glass leakage channel fibers

4. Higher-order-mode fibers

5. Chrially-coupled core fibers

6. Photonic bandgap fibers

7. Conclusions

Author details

References