Zobrazeno 1 - 10
of 31
pro vyhledávání: '"I. G. Poloyko"'
Autor:
I. G. Poloyko, N. N. Posnov, P. V. Prokoshin, Konstantin Yumashev, F. Mejid, Vladimir L. Kalashnikov, V. P. Kozich, V. P. Mikhailov
Publikováno v:
Optical and Quantum Electronics. 32:43-48
The nonlinear refractive index n2 of Yb3+:KY(WO4)2 crystal has been measured using picosecond Z-scan technique. The magnitude of n2 was found to be 8.7 × 10−16 cm2/W at wavelength of 1.08 μm. The numerical modeling based on fluctuation model show
Publikováno v:
Optical and Quantum Electronics. 31:359-365
It is shown that dynamical gain saturation, usually neglected for solid-state lasers, can contribute significantly to the pulse-shaping mechanism in Kerr-lens mode-locked lasers. In particular, in combination with self-phase modulation it can cause r
Publikováno v:
Optics Communications. 159:237-242
A theory for ultrashort pulse generation in cw solid-state lasers with a `slow' semiconductor saturable absorber in the presence of self-phase modulation in the active medium and absorption linewidth enhancement in the semiconductor has been develope
Publikováno v:
Optical and Quantum Electronics. 29:71-77
A new mechanism of the ultrashort pulse formation in solid-state lasers has been investigated. It was shown that linear frequency shift of the pulse from the centre of the luminescence band along with the self-phase modulation creates the conditions
Publikováno v:
Optical and Quantum Electronics. 27:1061-1068
The effective mode locking of a CW solid-state laser with a nonlinear Fabry-Perot interferometer with a period matched to that of the main cavity period (mode locking by additional cavity, or coupled-cavity mode locking) is considered. The main featu
Publikováno v:
Optics Communications. 116:383-388
Modulators for cw solid-state lasers based on stimulated Raman scattering and second harmonic generation effects in the additional cavity and antiresonant loop are proposed. They are shown to be an effective tool for ultra-short pulse generation at m
Publikováno v:
Optics Communications. 109:119-125
Parameters of the efficient mode-locking of cw solid-state lasers with saturable absorber in the additional cavity are found on the basis of the laser generation fluctuation model. These parameters form closed ranges. The main features of the efficie
Publikováno v:
Conference Proceedings. LEOS'98. 11th Annual Meeting. IEEE Lasers and Electro-Optics Society 1998 Annual Meeting (Cat. No.98CH36243).
We present a theory for ultrashort pulse generation in cw solid-state lasers with a nonlinear Fabry-Perot resonator containing semiconductor layer that possesses of nonlinear refraction. Assuming the Fabry-Perot resonator to be much shorter than the
Publikováno v:
Conference Proceedings. LEOS'98. 11th Annual Meeting. IEEE Lasers and Electro-Optics Society 1998 Annual Meeting (Cat. No.98CH36243).
We show, that the linear ac quantum-confined Stark effect in the semiconductor absorber forms a non-Schrodinger soliton in the presence of negative or positive group-velocity dispersion. It is known, that the near-resonance interaction of an ultra-sh
Autor:
I. G. Poloyko, V. L. Kalashnikov
Publikováno v:
SPIE Proceedings.
The theoretical calculation for nonlinear refractive index in Cr: ZnSe - active medium predicts the strong defocusing cascaded second-order nonlinearity within 2000 - 3000 nm spectral range. On the basis of this result the optimal cavity configuratio