Temperature Effect on Yb-Doped Silica Fiber Laser Performance

Ilchi-Ghazaani, Maryam; Parvin, Parviz

doi:10.1109/jqe.2020.3008946

Cited by 8 publications

(4 citation statements)

References 37 publications

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“…In Ref. [14], there is also a significant decrease in the efficiency of fiber laser at low temperature. This phenomenon is directly related to the fiber itself, mainly reflected in the technology of fiber manufacturing and the construction of the fiber laser.…”

Section: Experimental Setup and Resultsmentioning

confidence: 99%

“…There has been literature numerically model the behavior of Yb-doped fiber laser in different temperature condition via steady-state rate equations. The cross-sections under varied temperature are often obtained by experimental measurement [9], [14], [15] and numerical estimation [6], [11], [12]. In this paper, the temperature-dependent cross-sections are acquired by Lorentz fitting based on the precise measurement results at room temperature [13].…”

Section: Simulation and Discussionmentioning

confidence: 99%

“…Ref. [10], [14] cooled down the fiber via liquid nitrogen, which has a huge gap from normal temperature. In addition, we have established a more perfect theoretical model with cross-sections for arbitrary temperature and wavelength, by which the lasing performance of SFS can be studied under a wide temperature span and fine temperature gradient.…”

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confidence: 99%

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Temperature Dependence of Spectral Properties of Yb-Doped Superfluorescent Fiber Source

Wu,

Li,

Wang

et al. 2023

IEEE Photonics J.

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Fiber laser has been developed to the point where the average power scaling can reach several kilowatts readily for oscillators and more for amplifiers. In the meanwhile, the thermal effects inside the fiber laser also become prominent. Temperature rise of the fiber core caused by thermal effects has a conspicuous impact on laser performance. In this paper, the spectral properties of superfluorescent fiber sources at low temperature have been studied experimentally and theoretically. We observe a significant flattening of the arc top of the spectra and a broadening to the short-wave direction as the gain fiber temperature decreases from 25 ℃ to -95 ℃. The corresponding 10 dB bandwidth and 20 dB bandwidth increased by 7.216 and 4.004 nm, respectively. The 10 dB center position and the 20 dB center position of the spectrum also move 6.1 nm and 4.2 nm towards short-wave direction, respectively. The absorption and emission cross-sections at different temperatures, calculated based on Lorenz fitting theory, are used to simulate the experimental phenomena, and the results are consistent with the experiment. Additionally, the small signal gain coefficient at low temperature is calculated to help explain the observed phenomena in the experiment.

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Section: Experimental Setup and Resultsmentioning

confidence: 99%

Section: Simulation and Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Temperature Dependence of Spectral Properties of Yb-Doped Superfluorescent Fiber Source

Wu,

Li,

Wang

et al. 2023

IEEE Photonics J.

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show abstract

“…Remember that, as previously noted, the performance of fibers is dictated both by the materials from which they are made and from their waveguiding structure. Materially, waste heat can affect operating wavelength, output power, and lasing threshold, [92][93][94] as well as damage the polymeric fiber coatings and, at extreme levels, lead to thermal fracture of the glass. 71,95 The waveguide properties also are impacted.…”

Section: Some Like It Hotmentioning

confidence: 99%