Continuous-Wave Mid-Infrared Gas Fiber Lasers

Mengrong Xu; Fei Yu; Muhammad Rosdiabu Hassan; Jonathan C. Knight

doi:10.1109/JSTQE.2018.2792842

Continuous-Wave Mid-Infrared Gas Fiber Lasers

Mengrong Xu, Fei Yu, Muhammad Rosdiabu Hassan, Jonathan C. Knight

Research output: Contribution to journal › Article

7 Citations (Scopus)

Abstract

Efficient continuous-wave laser emission of acetylene molecules at 3.1 μm wavelength has been demonstrated in low-loss hollow-core fiber by optically pumping using a fiber-amplified diode laser around 1.53 μm. In this paper, we report and compare the continuous-wave laser performance of acetylene molecules in the cavity and single-pass configurations. The use of low-loss antiresonant hollow-core fiber makes the single-pass configuration ideal for high-power laser generation and enables over 1.1 W continuous-wave mid-infrared laser output with over 33% slope efficiency relative to the absorbed pump power. The systematic characterization of power-scaling and pump power absorption properties demonstrates that the molecular kinetics inside hollow-core fiber determines the laser performance, and that low fiber attenuation is key to high-efficiency continuous-wave output.

Original language	English
Article number	8255800
Journal	IEEE Journal of Selected Topics in Quantum Electronics
Volume	24
Issue number	3
DOIs	https://doi.org/10.1109/JSTQE.2018.2792842
Publication status	Published - 1 May 2018

Keywords

gas lasers
optical fiber lasers
Optical fibers

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

Access to Document

10.1109/JSTQE.2018.2792842Licence: CC BY

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Cite this

Xu, M., Yu, F., Hassan, M. R., & Knight, J. C. (2018). Continuous-Wave Mid-Infrared Gas Fiber Lasers. IEEE Journal of Selected Topics in Quantum Electronics, 24(3), [8255800]. https://doi.org/10.1109/JSTQE.2018.2792842

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abstract = "Efficient continuous-wave laser emission of acetylene molecules at 3.1 μm wavelength has been demonstrated in low-loss hollow-core fiber by optically pumping using a fiber-amplified diode laser around 1.53 μm. In this paper, we report and compare the continuous-wave laser performance of acetylene molecules in the cavity and single-pass configurations. The use of low-loss antiresonant hollow-core fiber makes the single-pass configuration ideal for high-power laser generation and enables over 1.1 W continuous-wave mid-infrared laser output with over 33% slope efficiency relative to the absorbed pump power. The systematic characterization of power-scaling and pump power absorption properties demonstrates that the molecular kinetics inside hollow-core fiber determines the laser performance, and that low fiber attenuation is key to high-efficiency continuous-wave output.",

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