Invention:
This invention describes a method of fabricating novel low-SWaP (size, weight, and power) lasers and magneto-optical devices based on innovative Ce3+/Tb3+ co-doped BASL glass. The ability of this glass to efficiently support energy transfer at wavelengths up to 390 nm, beyond conventional limits, makes it highly promising for use in radiation-hardened visible microchip lasers, non-planar ring oscillators, fiber lasers, and magnetic field sensors.
Background:
Silicate glasses are popular for their strength, durability, and thermal stability, making them easier to process than other glass types. However, they struggle to hold high levels of Ce³⁺ because it often oxidizes to Ce⁴⁺ during melting, reducing luminescence. Alternatives like heavy metal oxide or fluoride glasses offer better optical properties but are hard to produce in large volumes and maintain Ce³⁺ efficiency. Ce³⁺-doped materials are valuable for photonics due to their broad UV-visible luminescence and radiation resistance, but crystals and films are costly and brittle. Newly developed Ce³⁺-doped boron-aluminosilicate (BASL) glass solves these issues by combining durability with stable Ce³⁺ doping, enabling efficient Ce to Tb energy transfer for advanced photonic applications.
Applications:
- Visible microchip lasers
- Non-planar ring oscillators
- Fiber lasers
- Magnetic field sensors
- Photonics manufacturing
- Magneto-optic devices
Advantages:
- Efficient energy transfer
- Broad excitation range
- Thermal and chemical stability
