A study of MIR photoluminescence from Pr$^{3+}$ doped chalcogenide fibers pumped at near-infrared wavelengths

TL;DR

This paper numerically analyzes mid-infrared photoluminescence in Pr$^{3+}$ doped chalcogenide fibers pumped at near-infrared wavelengths, demonstrating effective population inversion with multiple laser diodes.

Contribution

It provides new insights into pumping schemes for mid-infrared photoluminescence in doped chalcogenide fibers using near-infrared lasers.

Findings

Effective population inversion achievable with 1480 nm and 1595 nm pumping.

Spontaneous emission rates comparable to 2040 nm pumping.

Potential for efficient mid-infrared fiber lasers.

Abstract

We perform a numerical analysis of mid-infrared photoluminescence emitted by praseodymium (III) doped chalcogenide selenide glass pumped at near-infrared wavelengths. The results obtained show that an effective inversion of level populations can be achieved using both 1480 nm and 1595 nm laser diodes. The rate of the spontaneous emission achieved when pumping at 1480 nm and 1595 nm is comparable to this achieved using the standard pumping wavelength of 2040 nm.