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Short-pulse fiber lasers based on dissipative-soliton formation offer major performance and practical advantages over prior fiber lasers. Recent developments will be reviewed.
Through nonlinear scattering including stimulated Raman scattering and beam cleanup, a pulsed multimode pump beam is converted into a nearly diffraction-limited supercontinuum extending from 1 to 2 µm in a passive cladding-pumped nonlinear fiber converter.
This paper presents a laser-assisted chemical vapor deposition of silicon thin film and silicon thin film long-period gratings inside a two-hole fiber and photonic crystal fiber with hollow cores.
We present a mid-infrared frequency comb generated via differency frequency mixing of a Yb femtosecond fiber laser. After passing through a methane gas sample, the MIR comb is upconverted and dispersed onto a CCD for detection.
A linearly polarized fiber laser emitting at 979 nm with an output power of 2 W is presented. By using a photodarkening-resistant Yb/Ce/Al-codoped silica fiber, degradation-free operation is achieved over several hours.
We report on the generation of high-energy femtosecond pulses from an ytterbium-doped photonic crystal fiber oscillator. Sub-150 fs pulses are obtained at low-cavity dispersion. By increasing the normal cavity dispersion, pulse energy exceeds 100 nJ.
We report a highly versatile gas phase technique for making ytterbium doped silica fibers. Initial results generated 200W output power with a slope efficiency of 72%.
The generation of self-similar parabolic pulses (similaritons) has so far only been obtained in single-pass Raman amplifier configurations [1, 2], or in rare-earth doped fiber lasers [3, 4]. We report here the first demonstration of a mode-locked parabolic pulse fiber laser, which can potentially be run at any wavelength using Raman gain. This new all-fiber ring similariton laser scheme (cf. Fig....
We report on the operation of a splice-free ytterbium fiber laser emitting 65W at 1072nm based on a pair of FBGs written directly in the active fiber using 400nm femtosecond pulses and a phase-mask.
We demonstrate amplification of femtosecond pulses in large mode area singlemode Yb-doped photonic bandgap Bragg fibers. 260 fs 5 µJ pulses are obtained at 100 kHz repetition rate (1 W of average power).
Injection of modulated noise into mode-locked fiber lasers provides rich pulses formation and sprinkling effects with trapping and annihilation centers in the cavity. The lightning experiment demonstration is accompanied by statistical light-mode dynamics analysis.
200-fs 2.5-mJ pulses from a cw-diode-pumped Yb:CaF2 MOPA are spectrally broadened in Ar and recompressed to 30 fs at 980 nm using a prism pair. Multi-millijoule 12-fs pulses are feasible upon higher-order spectral phase correction.
This is a tutorial exploring some of the key engineering issues that have been and must be addressed to construct solid state lasers in the 100 kW, CW class with good beam quality. Both slab and fiber approaches are considered. In both cases some form of beam combining is also required, and two promising beam combining approaches are considered.
We devised and demonstrated terahertz emission from an optical fiber tip coated with InAs thin film illuminated by guided laser field and achieved λ/20 sub-wavelength imaging in an InAs-based transmissive near-field laser emission THz microscope.
We report on the first generation of broad Raman sidebands by employing room-temperature adiabatic Raman excitation in a parahydrogen filled kagome-lattice-type hollow-core photonic-crystal-fiber. The sidebands span over 160 THz with ultra-low pump laser power.
A new type of microstructured fiber for mid-IR is introduced. The chalcogenide microporous fiber allows extensive dispersion engineering that enables red-shifting the zero-dispersion point in the vicinity of CO2 laser lines and ultra-flat dispersion windows.
A narrow linewidth thulium fiber laser is tuned from 1945 – 2090 nm to investigate atmospheric transmission at 1 km. Results confirm simulations with high transmission >2025 nm and strong atmospheric absorption <1960 nm.
We report the demonstration of a short pulse high power IR (98 W) and green (43 W) laser with 50 ps pulse-width, 700 MHz repetition-rate and near-diffraction limited beam quality (M2<1.1). The pulse-width was electro-optically tunable from 10 ps to 50 ps.
We demonstrate that microstructures inside the cladding of phosphate fiber as well as sub-wavelength nanostructures inside the fiber core can introduce birefringence in phosphate glass fiber components.
We report on a 96 kHz repetition rate sub-10 fs, optical parametric chirped pulse amplifier system with 6.7 W average power and >5 GW peak power. Furthermore the oscillator is CEP stabilized and the CEP of the amplified pulses is measured.
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