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Multiple-focal-plane spatial phase retrieval for a chirped-pulse-amplification laser is demonstrated for the first time. Advantages of this method are simplicity of setup, ability to measure angular dispersion, and potential integration into precision, on-shot focal-spot diagnostics.
We report non-collinear optical parametric amplification in a bulk KTiOPO4 (KTP) crystal generating ultra-broadband near-IR pulses, that cover simultaneously the wavelength region ~1050-1450 nm with a bandwidth Gt2500 cm-1.
We demonstrated the generation of 34-muJ, 14-fs optical pulses with an ultrabroad bandwidth (540-1000 nm) by the use of one angularly-dispersed non-collinear optical parametric amplifier.
Efficient infrared 35-THz-wide parametric amplification with energies above 3 mJ is obtained in a 3-stage OPCPA using a combination of a 1030-nm 200-fs Yb- and a 1064-nm 60-ps Nd amplifier seeded with a common Yb oscillator.
A high-energy, high-contrast seed source for high-power lasers is directly generated using parametric amplification, with a temporal contrast better than 100 dB within 5 ps of the pulse peak and an extremely fast rising edge.
We present a cryogenically-cooled Yb:LiYF4 chirped-pulse amplification system with an energy of Gt100-mJ boosted by regenerative and multi-pass amplifiers for pumping multi-terawatt, few-cycle optical parametric chirped-pulse amplification.
A numerical investigation on noise figure (NF) inside the silicon waveguides pumped with high-repetition-rate pulses is carried out. The parameters of pump pulses are important to generate net gain and <7dB NF in silicon waveguides.
We generate broadband mid-IR pulses from an 800-nm-driven optical parametric amplifier in LiIO3. Exploiting its broad phase-matching bandwidth around 1 mm, we produced 2-mJ idler pulses in the 3-4 mm range supporting 30-fs transform-limited duration.
We generate 8.5 fs pulses at 1.6 mm from an 800-nm-pumped optical parametric amplifier working at degeneracy, employing a deformable mirror compressor. These are the shortest light pulses in this wavelength range.
An optical parametric chirped pulse amplification system producing high-energy, few-cycle pulses at 2.0-mum wavelength with low superfluorescence noise background for high harmonic generation in gas jets is demonstrated.
Comparison of the performance of an optical parametric amplifier is presented using BBO or BIBO crystals in Type II. The spatio-temporal effect of the parametric pulse-shortening is experimentally investigated with respect to the signal wavelength.
We report an optical parametric chirped-pulse amplification (OPCPA) system with the pulse duration of 5.5 fs at a 1-kHz repetition rate, pumped by a 450-nm pulse from a frequency doubled Ti:sapphire laser.
We have experimentally, for the first time, demonstrated one-pump optical fiber parametric amplification (OPA) in bismuth-oxide-based highly nonlinear fiber (Bi-HNLF), and realized narrowband (0.75 nm) and tunable gain spectrum as high as 58 dB.
We experimentally measure optical squeezing at multiple longitudinal modes of an optical parametric amplifier. We present data up to 5.1 GHz that shows the magnitude of the squeezing is greater than observable at baseband.
In an ordinary electromagnetically-induced-transparency setup in sodium vapor, we have observed a probe gain up to 15, attributable to the parametric amplification, accompanying the Stokes (or anti-Stokes) wave with similar output intensity.
We report the first high-contrast, high-intense Ti:sapphire chirped-pulse amplification laser system incorporating a nonlinear pre-amplifier based on an optical parametric chirped-pulse amplification for use in experiments where relativistic effects dominate the physics.
Performance characteristics and first experiments on Sandiapsilas Z-Petawatt (ZPW) laser will be presented. This system will provide enhanced backlighting capabilities on the Z-Accelerator by achieving multi 10 keV X-rays in less than a picosecond.
We demonstrate cross-gain modulation in an optical parametric amplifier for all-optical signal regeneration. A degraded 10-Gb/s return-to-zero signal has been successfully regenerated with a 1.3-dB receiver sensitivity improvement at 10-9 bit-error rate level.
A total output energy exceeding 8 mJ with 50 fs pulse duration has been achieved in the infrared region by power scaling of a parametric amplifier chain, making this source suited as a driver for soft x-ray harmonic pulses.
Ultrabroadband generation of white-light continuum in the near-IR (~135 THz, 1.15-2.4 mum) is demonstrated in BiB3O6, pumped by 45 fs long pulses at 800 nm, achieving an energy of 15 muJ at 1 kHz.
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