Small signal gain and saturation intensity of a Yb:Silica fiber MOPA system

Parvin, Parviz; Ilchi-Ghazaani, Maryam; Bananej, Alireza; Lali-Dastjerdi, Zohreh

doi:10.1016/j.optlastec.2009.02.006

Cited by 32 publications

(17 citation statements)

References 27 publications

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“…In general, the amplification relation in our experiment can be estimated by Frantz-Nodvick model [5,9,11] in which E sat is the saturation energy, E in , E out are the input pulse energy and the output pulse energy for the fiber amplifier, g 0 is the small-signal gain, L is the fiber length (3 m in our case ν is the signal photon energy, es σ , as σ are the emission and the absorption cross-section at the emission wavelength respectively, A is the doped area, and s Γ is the signal overlap with the active dopant (for single mode running at high pump rates: s Γ is approximated to be 0.75) [10].…”

Section: Properties Of the Main Amplifiermentioning

confidence: 88%

High energy, single-polarized, single-transverse-mode, nanosecond pulses generated by a multi-stage Yb-doped photonic crystal fiber amplifier

Shen

Zhang

et al. 2015

Optics Communications

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Section: Properties Of the Main Amplifiermentioning

confidence: 88%

High energy, single-polarized, single-transverse-mode, nanosecond pulses generated by a multi-stage Yb-doped photonic crystal fiber amplifier

Shen

Zhang

et al. 2015

Optics Communications

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“…This work is a continuation of our previous study on determination of small-signal and saturation power of fiber gain media [5,6]. Here, a continuous-wave (CW) single-mode (SM) double-clad (DC) Yb-doped silica fiber MOPA array at 1082.5nm has been fabricated and optimized in order to investigate the pumping power and the filling factor dependence of the small-signal gain and saturation power.…”

Section: Introductionmentioning

confidence: 99%

“…Afterward, the temperature dependence of the amplifying parameters has been investigated using a pair of copper vapor lasers in an oscillator-amplifier configuration in 2004 [4]. Moreover, the small-signal gain and saturation power of a Yb:Silica fiber master oscillator-power amplifier (MOPA) array has been determined numerically in the optimum length by Parvin et al [5,6]. MOPA array usually consists of an oscillator with axial diode laser pumping through the clad.…”

Section: Introductionmentioning

confidence: 99%

Effect of pump power on gain and saturation of double-clad fiber amplifiers

Ilchi-Ghazaani

Parvin

Mohammadian

et al. 2013

2013 21st Iranian Conference on Electrical Engineering (ICEE)

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Designing and fabrication of a continuous wave double-clad oscillator-amplifier array was carried out in order to measure the small-signal gain and saturation power. In the array, the low power fiber laser seed signal at 1082.5nm is amplified through the single-mode double-clad ytterbiumdoped silica fiber amplifier. The gain and saturation parameters can be determined using the steady-state amplification relation. It is shown that those parameters increase at stronger pump powers of the amplifier mainly due to the dominant effect of the overlapping factor.

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“…Compared to shooting method [4][5][6][7][8], MATLAB BVP solvers as a popular technique for solving boundary value problems, is approximated over the whole interval and the boundary conditions are automatically satisfied at all time. A good guess is absolutely essential to solve the MATLAB BVPs' flaws itself failing to converge or convergent to error results [9].…”

Section: Introductionmentioning

confidence: 99%