The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Brillouin properties of doped fibers are reported for the first time. The characterized fibers present Brillouin frequency shift variation that we attribute to fiber composition. A thermally induced evolution of Brillouin spectrum has been observed.
A fully integrated self-referenced Er-fiber frequency-comb system without the use of highly nonlinear or microstructured fiber is demonstrated. We use a single PPLN-waveguide for both spectral broadening and 2f-to-3f CEO-phase detection.
We demonstrate a muW-level broadly tunable THz source based on parametric down-conversion in orientation-patterned GaAs pumped by femtosecond pulses from a Tm-doped fiber laser. Generated THz powers should be scalable to mW-levels with this approach.
We review high power and high energy ultrafast fiber amplifiers. An Yb-fiber chirped pulse amplification system employing cubicon pulses producing sub-650 fs pulses at >100 muJ and >15W is presented.
An optically integrated frequency-comb-system based on a passively-mode locked, fCEO-locked Er:soft-glass-fiber-laser and a PPLN-waveguide phase-sensor is demonstrated. The oscillator emits pulses with 61 nm spectral bandwidth and 170 MHz repetition frequency.
Recent work in frequency-conversion of pulsed fiber-amplifiers is reviewed. Design criteria of frequency converters for fiber sources in operating the wavelength range between 1 um and 2 um are discussed.
A picosecond single-mode, linearly polarized fiber source producing 176 W of average power was employed to generate up to 80 W average power at 530 nm by frequency doubling through a single LBO crystal.
We report using short, heavily-doped active phosphate fiber for generation of picosecond pulses at 1.5 mum, with the peak power of 19 kW which results in a record-high aerial power density of 24 GW/cm2 in the fiber core.
We report the first continuous-wave Yb3+-doped phosphate fiber laser. 12 W of diffraction-limited, 1.06-mum power was generated from a 71-cm length of double-clad fiber with 34 W of absorbed pump power.
We report on an ytterbium-doped rod-type 0.5-m long photonic crystal fiber (PCF) laser emitting 320-W in a fundamental mode from a 60-mum core. Furthermore, single-transverse-mode propagation in a passive photonic crystal 100-mum-core fiber is investigated.
An analytic model of chirped-pulse amplification is presented. The model is used to optimize the peak power in fiber chirped-pulse amplification, in which the interplay of nonlinearity and third-order dispersion plays a major role.
We demonstrate 314 W continuous-wave output power at 1077 nm from a Yb-doped fiber laser with a truly single-mode core. The core employed a W-type refractive index profile that suppressed detrimental stimulated Raman scattering through spectral filtering.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.