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We present a study of mid-infrared photoluminescence emitted from Tb3+:GeAsGaSe chalcogenide bulk glass and fibre. Absorption and emission cross-sections were calculated based on measured results. The decay characteristic related to the potential laser transition 7F5 → 7F6 has been measured and investigated. The observed high values of emission and absorption cross-sections and long lifetime from...
We present a study of mid-infrared photoluminescence in the wavelength range 3.5–5.5μm emitted from Pr 3+ : GeAsGaSe core/GeAsGaSe cladding chalcogenide fiber. The Pr 3+ doped fiber optic preform is fabricated using extrusion and is successfully drawn to low optical loss, step-index fiber. Broadband mid-infrared photoluminescence is observed from the fiber, both under 1.55μm or 1.94μm...
Szkła chalkogenidkowe charakteryzują się niską energią fononów dlatego też są obiecującym materiałem dla realizacji światłowodów na zakres średniej podczerwieni. W pracy przedstawiono technologię wykonania szkieł chalkogenidkowych (Ge₁₆.₅ As₁₆Ga3Se₆.₅) domieszkowanych jonami ziem rzadkich (Dy³⁺, Tb³⁺, Pr³⁺). Wyniki eksperymentalne absorpcji otrzymano za pomocą spektroskopii furierowskiej w zakresie...
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