We demonstrated 10-GHz all-optical clock recovery using an erbium-doped fiber laser incorporating an electro-absorption modulator and linear optical amplifier. Stable clock pulses with peak power of 200 mW and pulsewidth of 6 ps are obtained.

Erbium (Er) ion has been widely used in silica fiber-based active photonic devices, given its characteristic emission around 1.5 μm. Hydrogenated and deuterated amorphous carbon (a-C:H and a-C:D, respectively), thin film materials offering tailorable opto-electronic properties, have not been explored thoroughly as host materials for Er. The objective of this research is to study the potential s...

Spectroscopic investigations reveal the presence of a fast quenching process in erbium-doped aluminum oxide waveguides. We quantify the percentage of quenched ions and make predictions about the amplifier performance. Optical amplifiers; integrated optics materials; fast quenching processes; aluminum oxide

We report on the first synthesis and structural characterizations of a new Erbium (Er) compound, the erbium chloride silicate (ECS, Er3Cl(SiO4)2) single crystal in a Si-ECS core-shell nanowire form. The Erconcentration in ECS at 1.6x10 22 cm −3 is three orders of magnitude higher than that of the Er-doped materials. Photoluminescence spectra at both low and room temperatures exhibit well separa...

We compare the frequency detuning properties of optical pulses generated from erbium-doped fiber lasers (EDFL's) by using harmonic mode-locking and regenerative amplification techniques. The frequency detuning range of regeneratively amplified pulse (17.78 kHz) is wider than that of harmonic mode-locked pulses (7 kHz). The regeneratively amplidied EDFL pulse has a smaller pulsewidth (22ps), a h...

We demonstrate an erbium-doped fiber laser passively Q-switched by a black-phosphorus polyimide film. The multi-layer black-phosphorus (BP) nanosheets were prepared via a liquid exfoliation approach exploiting N-methylpyrrolidone as the dispersion liquid. By mixing the BP nanosheets with polyimide (PI), a piece of BP-PI film was obtained after evaporating the mixture in a petri dish. The BP-PI ...

Titania particles doped with various concentrations of Erbium were synthesized by the sol-gel method followed by different heat treatments. The shape and the grain growth of the particles were noticeably affected by the concentration of Erbium and the heat treatment conditions. An infrared emission at 1530 nm, as well as green and red up-conversion emissions at 550 and 670 nm, were observed und...

We present an erbium-doped microlaser on silicon operating at a wavelength of 1.5 mm that operates at a launched pump threshold as low as 4.5 mW. The 40 mm diameter toroidal microresonator is made using a combination of erbium ion implantation, photolithography, wet and dry etching, and laser annealing, using a thermally grown SiO2 film on a Si substrate as a starting material. The microlaser, ...

A simple linear cavity erbium-doped fiber laser based on a Fabry-Perot filter which consists of a pair of fiber Bragg gratings is proposed for tunable and switchable single-longitudinal-mode dual-wavelength operation. The single-longitudinal-mode is obtained by the saturable absorption of an unpumed erbium-doped fiber together with a narrow-band fiber Bragg grating. Under the high pump power (>...