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1
Content available remote Investigation of passively mode-locked erbium doped fiber ring laser due to nonlinear polarization rotation
Nikodem M. P., Budnicki A., Tomczyk G., Abramski K. M.
Opto-Electronics Review
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2008
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Vol. 16, No. 2
194-198
EN
Passively mode-locked erbium doped fiber ring laser was investigated. We present optimization of laser configuration where nonlinear polarization rotation was used for modes synchronization. Simulations of pulse propagation inside a laser cavity were applied in order to confirm the optimisation technique. Experimental results are presented and more than 32-nm spectral width of the output frequency comb was obtained.
2
Content available remote Discretely tunable and multiwavelength erbium doped fibre lasers with Fabry-Perot etalon
Stryjak M., Budnicki A., Lewicki R., Kaczmarek P. R., Abramski K. M.
Opto-Electronics Review
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2008
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Vol. 16, No. 2
179-184
EN
Modern WDM telecommunication systems require stable and calibrated laser sources. In this paper, we present examples of such lasers based on erbium doped fibres, i.e., discretely tunable and multiwavelength ring lasers. For the first case, tuning is possible due to a tunable Bragg grating overlapping spectrally the third telecommunication window (1550 nm). When a Fabry-Perot etalon is inserted into the cavity, discrete tunable operation with appropriate spacing between operating wavelengths is possible. Different free spectral ranges (FSR) of applied etalons ensured operation at a wavelength spacing 0.4 nm, 0.8 nm or 1.6 nm, respectively. When an acoustooptical Bragg frequency shifter was inserted together with the Fabry-Perot etalon, the stable simultaneous multiwavelength operation covering the erbium doped gain range was achieved.
3
Content available remote Erbium-doped fibre amplifiers: modelling and experimental verification of gain and noise figure
Tiesler M. M., Budnicki A., Szkotnicki A. M., Pawlik E. M., Abramski K. M.
Optica Applicata
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2001
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Vol. 31, nr 4
731-738
EN
Results obtained from a numerical modelling for erbium-doped fibres have been demonstrated and discussed. Differences between theoretical calculations and experimental data are explained.
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