Glasses and glass-ceramics in InF3–BaF2–BiF3–BiPO4 systems

New glasses have been synthesized in the InF3–BaF2–BiF3–BiPO4 system. The introduction of the phosphate component into fluoroindate glass increases the resistance of the glass to crystallization, but the presence of phosphate polyhedra in the glass structure, even in small amounts, reduces the transmission region. It is shown that glasses in the InF3–BaF2–BiF3–BiPO4 system can be a convenient base for obtaining glass-crystalline materials consisting of an oxide glass matrix with crystalline fluoride phases. Luminescence was detected in the near IR region (1182 nm) in the glasses under discussion. •The new glasses in the InF3–BaF2–BiF3–BiPO4 system has been synthesized.•The introduction of a phosphate component into fluoridate glass increases the resistance of the glass to crystallization.•InF3–BaF2–BiF3–BiPO4 glasses can serve as a convenient base for creating glass ceramic materials.•In glasses in the InF3–BaF2–BiF3–BiPO4 system, luminescence was found in the near-IR range (1182 nm).