We experimentally study a new regime for supercontinuum (SC) generation in the nanosecond pulsed regime using a microstructured optical fiber with two zero-dispersion wavelengths (ZDWs). Pumping at 1535 nm around the second ZDW yields a nearly flat SC over 1350–1700 nm. The interplay between the effects of modulation instability and stimulated Raman scattering are described through simple phase...

We experimentally study a new regime for supercontinuum (SC) generation in the nanosecond pulsed regime using a microstructured optical fiber with two zero-dispersion wavelengths (ZDWs). Pumping at 1535 nm around the second ZDW yields a nearly flat SC over 1350–1700 nm. The interplay between the effects of modulation instability and stimulated Raman scattering are described through simple phase...

Supercontinuum pulses covering the range from 1100 to 1700 nm with energies >1.0  mJ and excellent beam quality are generated via nonlinear spectral broadening of Cr:forsterite (1240 nm, 110 fs) pulses in pressurized molecular nitrogen. Our spectra, which extend over more than half an octave, offer an attractive alternative to intense few-cycle pulse synthesis in the 1-2 μm range and lend thems...

Near-infrared spectroscopy (NIRS) allows for the rapid estimation of a wide range wood properties. Typically, NIRS studies on have utilized benchtop spectrometers, but efforts to utilize NIR hyperspectral imaging examine and products increased. Compared systems, has several advantages (speed, visualization spatial variability), data typically lower signal-to-noise ratio as well fewer wavelength...

Near infrared (NIR) spectroscopy allows rapid estimation of quality traits in fresh fruit. Several portable spectrometers are available the market as a low-cost solution to perform NIR spectroscopy. However, spectrometers, being lower cost than benchtop counterpart, do not cover complete near spectral range. Often sensors either use silicon-based visible and detector 400–1000 nm, or InGaAs-base...

Introduction: Tunable dispersion compensation is becoming inevitable for fibre-optic communication systems. Important applications include replacing conventional dispersion compensating fibres (DCFs) in long-haul transmissions, compensating residual dispersion after the DCF to meet the tight dispersion tolerances required in 40 Gbit=s and above based networks, and compensating thermallyinduced ...

It is now almost twenty-five years since the first Erbium-Doped Fiber Amplifier (EDFA) was demonstrated. Currently, the EDFA is one of the most important elements widely used in different kinds of fiber-optic communication systems. However, driven by a constantly increasing demand, the network traffic, growing exponentially over decades, will lead to the overload of these systems ("capacity cru...