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We report an observation of soliton rains in normal dispersion Yb fiber laser. The cavity consisted of a narrow filter and a broad birefringent plate filter. Soliton rain was obtained in the weak mode-locking regime.
The effect of third-order dispersion in a Hong-Ou-Mandel interferometer is investigated using a ZnSe crystal as a dispersive medium. A value for the TOD coefficient of ZnSe is extracted which is consistent with literature values.
We report high power operation of a Kagome-type HC-PCF at 1 μm. We demonstrate guidance of thin disk laser beam with powers in excess of 100 W in cw and 75 W in modelocked operation.
We demonstrate sub-50 fs pulses generation directly from a 750 MHz repetition rate dispersion managed Yb: fiber ring laser by precision compensation of the intracavity dispersion.
We investigate coherent matched detection with paired fiber configuration, which improves phase matching between received time-frequency domain multiplexed signals and multicarrier local oscillator, giving a tolerance to residual dispersion.
The concept of a "dissipative soliton" provides an excellent framework for understanding complex mode-locked laser pulse dynamics from a unified picture. It has stimulated innovative laser cavity designs in the past few years. This tutorial lecture provides conceptual pictures illustrated with universal dynamics, highlights recent achievements and prospects for mode-locked laser development.
A 1.2-km timing-stabilized, polarization-maintaining fiber link based on balanced optical cross-correlation was demonstrated with ∼0.9 fs RMS timing jitter over 16 days and ∼0.2 fs RMS timing jitter over 3 days.
Synchronous high-power Yb: and Tm:amplifiers both coherently seeded by the same broadband passively phase stable Er:fiber system are demonstrated. Microjoule-level pulse energy and sub-200-fs operation at a repetition rate of 10 MHz are obtained.
We present a completely monolithic Yb-fiber chirped pulse amplifier that uses a dispersion matched fiber stretcher and hollow core photonic bandgap compressor fiber. The output pulses are compressed to almost Fourier limited duration.
A refractive-index change is written inside an optical fiber close to the end face by femtosecond laser light. The induced phase change is measured by analyzing the far-field intensity profiles before and after the irradiation.
110 MHz high repetition rate soliton mode-locked fiber laser with 40 mW high average power was demonstrated using carbon nanotube polyimide film. Super continuum at 1.7 um was generated and ultrahigh resolution OCT was demonstrated.
We report the first demonstration of nonlocal cancellation of differential dispersion between the long-short paths of a fiber-based Franson interferometer, restoring the otherwise limited visibility to an unprecedented 99.6% for time-energy entangled photons.
We report the experimental demonstration of the supercontinuum extended to ultraviolet region of 200–400 nm by the effect of cross phase modulation between the anti-Stokes signal at 400–550 nm and pump soliton.
Low energy threshold (32 nJ) and flat supercontinuum spectrum in 1040–1240 nm wavelength are demonstrated by noise-like pump pulses in normally dispersive single mode fibers.
We demonstrate an Er:fiber ring laser operated at the fundamental repetition rate of 325 MHz. Two gain fibers with opposite dispersion were combined both for compactness and intra-cavity dispersion compensation.
We demonstrate parametric amplification at 1.064 μm with a 600 μm2 fiber mode, with 94 nm gain bandwidth, cascade products over 315 nm bandwidth, and 6 kW peak power in the Stokes and anti-Stokes lines.
A practical plasmonic THz fiber is described that features two metallic wires held together by the porous dielectric cladding. High porosity is required in order to guarantee low loss and low dispersion of guided modes.
We found that Ca additive effectively suppresses the photo-darkening (PD) effect in Yb-doped silica fiber even at 6.0 wt% of high Yb2O3 concentration. Ca ion works as a stabilizer to maintain the Yb3+ valence state. We hypothesize that this phenomenon may reflect the local charge balance effect in silica glass. This Yb-Ca co-doped silica fiber can be useful for high-power fiber lasers.
We present a wavelength and pulse width agile programmable laser in the 1 μm region using Ytterbium-doped fiber amplifiers. Wavelengths and pulse widths are tuned independently from 1020 to 1080 nm and from 26 down to 4 ps after compression.
We demonstrated high-power yellow and near-infrared laser emissions by cascaded four-wave mixing in a nonlinear Yb-doped fiber amplifier, generating 0.3 W at 594 nm and 1.6 W at 825 nm of average power.
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