We report emission from a bismuth doped chalcogenide glass which is flattened, has a full width at half maximum (FWHM) of 600 nm, peaks at 1300 nm and covers the entire telecommunications window. At cryogenic temperatures the FWHM reaches 850 nm. The quantum efficiency and lifetime were as high as 32% and 175 mus, respectively. We also report two new… (More)
We demonstrate the second and third harmonics generation in tellurite microstructured fibers pumped by a 1557 nm femtosecond fiber laser.
We demonstrate the supercontinuum generation in an As<sub>2</sub>Se<sub>5</sub> microstructured optical fiber experimentally. The SC bandwidth of 4280 nm wider than two octaves covering from 1370 to 5650 nm is obtained in 4.8 cm long fiber.
When the chalcogenide-tellurite hybrid optical fiber is pumped by an optical parametric oscillator with the pump wavelength from 1700 to 3000 nm, widely tunable second-harmonic generation (SHG) from 850 nm to 1502 nm is obtained.
Reaction order in Bi-doped oxide glasses depends on the optical basicity of the glass host. Red and NIR photoluminescence (PL) bands result from Bi(2+) and Bin clusters, respectively. Very similar centers are present in Bi- and Pb-doped oxide and chalcogenide glasses. Bi-implanted and Bi melt-doped chalcogenide glasses display new PL bands, indicating that… (More)
We propose a distortion factor which indicates the distortion degree of the geometry of fiber compared with the geometry of preform. Hexagonal core, and triangular core nanostructured fibers with the smallest size are demonstrated.
Enhanced soliton trapping of dispersive waves in a tapered tellurite microstructured fiber pumped by a 1557 nm femtosecond laser is demonstrated. The short wavelength edge of supercontinuum light is extended from 960 to 600 nm.
We demonstrate wide and flattened supercontinuum generation in zero-dispersion wavelength decreasing tellurite microstructured fibers fabricated by using the tapering method.
Broadband photodetector having detection capability ranging from visible to near infrared can be useful as a common detector for both data and transport applications. The capability of using single detector for all application in optical communication as the receiver, not only makes the total system cost lower, but it also makes easier the system vendors to… (More)