Dysprosium-Doped Chalcogenide Master Oscillator Power Amplifier (MOPA) for Mid-IR Emission - Université de Rennes Access content directly
Journal Articles Journal of Lightwave Technology Year : 2017

Dysprosium-Doped Chalcogenide Master Oscillator Power Amplifier (MOPA) for Mid-IR Emission

Abstract

The paper describes the design of a medium infrared fiber laser based on a dysprosium-doped chalcogenide glass Dy3+ : Ga5Ge20Sb10S65. To obtain a high efficiency, the fiber laser is followed by an optical amplifier. The optimized optical source exploits a master oscillator power amplifier (MOPA) configuration. The MOPA pump and signal wavelengths are 1709 and 4384 nm, respectively. Spectroscopic parameters measured on preliminary samples of chalcogenide glasses are taken into account to fulfill realistic simulations. The MOPA emission is maximized by applying a particle swarm optimization approach. For the dysprosium concentration 6 x 10(25) ions/m(3) and the input pump power of 3 W, an output power of 637 mW can be obtained for optical fiber losses close to 1 dB m(-1). The optimized MOPA configuration allows a laser efficiency larger than 21%. By considering the high beam quality provided by photonic crystal fibers, it is a good candidate for medium infrared light generation whose main applications include, but are not limited to, molecular spectroscopy and environmental monitoring.

Dates and versions

hal-01500408 , version 1 (03-04-2017)

Identifiers

Cite

Mario Christian Falconi, Giuseppe Palma, Florent Starecki, Virginie Nazabal, Johann Troles, et al.. Dysprosium-Doped Chalcogenide Master Oscillator Power Amplifier (MOPA) for Mid-IR Emission. Journal of Lightwave Technology, 2017, 35 (2), pp.265--273. ⟨10.1109/JLT.2016.2632531⟩. ⟨hal-01500408⟩
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