Now showing items 1-16 of 16

    • 10-W, 156-MHz all-fiber-integrated Er-Yb-doped fiber laser-amplifier system 

      Pavlov I.; Ilbey, E.; Dülgergil, E.; Ömer Ilday F. (2012)
      We demonstrate all-fiber, high-power chirped-pulse-amplifier system, operating at 1550 nm. 156-MHz soliton oscillator seeds a two-stage single-mode amplifier with output power of 10 W. After external compression, pulse ...
    • All-fiber nonlinearity-and dispersion-managed dissipative soliton nanotube mode-locked laser 

      Zhang Z.; Popa, D.; Wittwer, V. J.; Milana, S.; Hasan, T.; Jiang, Z.; Ferrari, A. C.; Ilday F. Ö. (American Institute of Physics, 2015)
      We report dissipative soliton generation from an Yb-doped all-fiber nonlinearity- and dispersion-managed nanotube mode-locked laser. A simple all-fiber ring cavity exploits a photonic crystal fiber for both nonlinearity ...
    • All-fiber-integrated soliton-similariton laser with in-line fiber filter 

      Zhang, Z.; Öktem, B.; Ilday, F. Ö. (Optical Society of America, 2012-08-16)
      We demonstrate an all-fiber-integrated Er-doped fiber laser operating in the soliton-similariton mode-locking regime. In the similariton part of the cavity, a self-similarly evolving parabolic pulse with highly linear chirp ...
    • Amplitude Noise of Femtosecond Fiber Lasers in Different Modelocking Regimes 

      Budunoglu, L.; Ilday, F. O. (Optical Society of America, 2007)
      Amplitude noise of femtosecond fiber laser oscillators are characterized in soliton, similariton, stretched-pulse and all-normal GVD regimes of mode-locking. Integrated relative intensity noise as low as 0.023% (1 Hz-100 ...
    • Bell solitons in ultra-cold atomic Fermi gas 

      Khan, A.; Panigrahi P.K. (2013)
      We demonstrate the existence of supersonic bell solitons in the Bardeen-Cooper-Schrieffer-Bose-Einstein condensate crossover regime. Starting from the extended Thomas-Fermi density functional theory of superfluid order ...
    • Generation of dissipative solitons in normal-dispersion Raman fiber laser 

      Tegin U.; Elahi P.; Senel C.; Ergecen E.; Ilday F.O. (Institute of Electrical and Electronics Engineers Inc., 2016)
      Dissipative 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 ...
    • Generation of soliton molecules with independently evolving phase in a mode-locked fiber laser 

      Ortaç, B.; Zaviyalov, A.; Nielsen, C.K.; Egorov O.; Iliew, R.; Limpert J.; Lederer F.; Tünnermann, A. (2010)
      We report the experimental generation of two-soliton molecules in an ytterbium-doped fiber laser. These molecules exhibit an independently evolving phase and are characterized by a regular spectral modulation pattern with ...
    • High energy dissipative raman soliton laser through XPM stabilization 

      Ergeçen, E.; Tegin, U.; Elahi P.; Şenel Ç.; Ilday F.Ö. (Optical Society of America (OSA), 2015)
      Dispersion, nonlinearity and gain determine the intracavity pulse behaviour. We show that pump depletion and XPM play a significant role in the stabilization of high energy dissipative Raman solitons. Using this theoretical ...
    • The Hirota direct method 

      Pekcan, Aslı (Bilkent University, 2005)
      The search for integrability of nonlinear partial differential and difference equations includes the study on multi-soliton solutions. One of the most famous method to construct multi-soliton solutions is the Hirota ...
    • Nonlinear chirped-pulse amplification of a solitonsimilariton laser to ~1 μJ at 1550 nm 

      Ilbey, E.; Pavlov, I.; Dülgergil, E.; Öktem, B.; Yavas, S.; Rybak, A.; Zhang, Z.; Ilday, F. Ö. (2012)
      We demonstrate all-fiber-integrated nonlinear CPA system operating at 1550 nm, seeded by a soliton-similariton laser. Chirped 2-μJ pulses are compressed to 700-fs, 0.5-μJ pulses at 1 MHz. Amplifier output is through a ...
    • Nonlinearity engineering of mode-locked fiber lasers: Similariton and soliton-similariton lasers 

      Ilday F.Ö.; Oktem, B.; Ülgüdür, C. (2011)
      Fiber lasers are attractive with their simplicity, high powers and low cost. However, propagation of short pulses in optical fiber leads to nonlinear effects, which limit the technical performance. These effects drive rich ...
    • Observation of soliton molecules with independently evolving phase in a mode-locked fiber laser 

      Ortaç, B.; Zaviyalov, A.; Nielsen, C.K.; Egorov O.; Iliew, R.; Limpert J.; Lederer F.; Tünnermann, A. (2010)
      We report the experimental generation of two-soliton molecules in an all-polarization-maintaining ytterbium-doped fiber laser operating in the normal dispersion regime. These molecules exhibit an independently evolving ...
    • Soliton-similariton fibre laser 

      Oktem, B.; Ülgüdür, C.; Ilday, F. O. (Macmillan Publishers, 2010-03-21)
      Rapid 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 ...
    • Solutions of the extended Kadomtsev-Petviashvili-Boussinesq equation by the Hirota direct method 

      Pekcan, A. (Taylor & Francis Asia Pacific (Singapore), 2009)
      We show that we can apply the Hirota direct method to some non-integrable equations. For this purpose, we consider the extended Kadomtsev-Petviashvili- Boussinesq (eKPBo) equation with M variable which is (uxxx-6uu x)x + ...
    • Sub-80 fe dissipative soliton large-mode-area fiber laser 

      Baumgartl, M.; Ortaç, B.; Lecaplain, C.; Hideur, A.; Limpert J.; Tünnermann, A. (2010)
      We report on high-energy ultrashort pulse generation from an all-normal-dispersion large-mode-area fiber laser by exploiting an efficient combination of nonlinear polarization evolution (NPE) and a semiconductor-based ...
    • Weingarten surfaces arising from soliton theory 

      Ceyhan, Özgür (Bilkent University, 1999)
      In this work we presented a method for constructing surfaces in associated with the symmetries of Gauss-Mainardi-Codazzi equations. We show that among these surfaces the sphere has a unique role. Under constant gauge ...