Next Article in Journal
U-Jacketing Applications of Fiber-Reinforced Polymers in Reinforced Concrete T-Beams against Shear—Tests and Design
Previous Article in Journal
Analysis of the Behavior of FRCM Confined Clay Brick Masonry Columns
Previous Article in Special Issue
Large Normal Dispersion Mode-Locked Erbium-Doped Fiber Laser
Open AccessArticle

Development of a Thulium Fiber Laser for an Atomic Spectroscopy Experiment

Department of Physics, University of North Texas, Denton, TX 76203, USA
*
Author to whom correspondence should be addressed.
Fibers 2020, 8(2), 12; https://doi.org/10.3390/fib8020012
Received: 20 December 2019 / Revised: 6 February 2020 / Accepted: 9 February 2020 / Published: 15 February 2020
(This article belongs to the Special Issue Fiber Laser Sources)
A convenient thulium fiber laser source is described with 3 W of output power operating at a wavelength of 2059 nm with a slope efficiency of 49% with respect to input pump power and 60% with respect to absorbed pump power. The laser was applied in an atomic helium spectroscopy experiment to quench 3He (2058.63 nm) and 4He (2058.69 nm) meta-stable singlets (21S0), allowing for further investigation of the helium fine structure. The customized laser effectively eliminates the singlet counts to well below a background level (1%). A simplified analysis describes the basic laser performance with fitted constants in reasonable agreement with previous work. View Full-Text
Keywords: fiber; laser; fiber laser; thulium; thulium fiber laser; optics; rare-earth elements; spectroscopy fiber; laser; fiber laser; thulium; thulium fiber laser; optics; rare-earth elements; spectroscopy
Show Figures

Figure 1

MDPI and ACS Style

Currey, R.; Khademian, A.; Shiner, D. Development of a Thulium Fiber Laser for an Atomic Spectroscopy Experiment. Fibers 2020, 8, 12.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop