Browsing by Subject "All normal dispersions"
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Item Open Access All-normal-dispersion fiber lasers for frequency metrology(Optical Society of America, 2011) Şenel, Çağrı; İlday, F. Ömer; Kara, O.; Birlikseven, C.; Erdoǧan, C.; Hamid, R.Development of an all-normal-dispersion Yb-doped fiber laser-based frequency comb is reported. Repetition-frequency stabilization to the cesium standard, amplitude and phase noise measurements indicate low-noise performance. ©2011 Optical Society of America.Item Open Access Development and characterization of all-normal dispersion fiber laser for frequency comb generation(Optical Society of America, 2011) Şenel, Çağrı; İlday, F. Ömer; Kara O.; Hamid, R.; Erdoğan, C.Development of an all-normal-dispersion Yb-doped fiber laser-based frequency comb is reported. Repetition-frequency stabilization to the cesium standard, amplitude and phase noise measurements indicate low-noise performance. © 2011 Optical Society of America.Item Open Access Generation of dissipative solitons in normal-dispersion Raman fiber laser(IEEE, 2016) Teğin, Uğur; Elahi, Parviz; Şenel, Ç.; Ergeçen, E.; İlday, Fatih ÖmerDissipative soliton pulses in a synchronously pumped all-normal-dispersion Raman fiber laser is presented theoretically and experimentally. The laser generates 7.1 nJ intra-cavity pulses at 1.12 μm and is compressed to 136 fs.Item Open Access Soliton-similariton fibre laser(Macmillan Publishers, 2010-03-21) Öktem, Bülent; Ülgüdür, Coşkun; İlday, F. ÖmerRapid progress in passively mode-locked fibre lasers is currently driven by the recent discovery of new mode-locking mechanisms, namely, the self-similarly evolving pulse (similariton) and the all-normal-dispersion (dissipative soliton) regimes. These are fundamentally different from the previously known soliton and dispersion-managed soliton (stretched-pulse) regimes. Here, we report a fibre laser in which the mode-locked pulse evolves as a similariton in the gain segment and transforms into a regular soliton in the rest of the cavity. To our knowledge, this is the first observation of similaritons in the presence of gain, that is, amplifier similaritons, within a laser cavity. The existence of solutions in a dissipative nonlinear cavity comprising a periodic combination of two distinct nonlinear waves is novel and likely to be applicable to various other nonlinear systems. For very large filter bandwidths, our laser approaches the working regime of dispersion-managed soliton lasers; for very small anomalous-dispersion segment lengths it approaches dissipative soliton lasers. .