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Bismuth (Bi)-doped fiber (BDF) lasers and amplifiers have been demonstrated in different glass hosts (i.e., aluminosilicate, phosphosilicate and germanosilicate) covering the 1150–1800nm wavelength region [1-3]. Pulsed Bi-doped fiber lasers (BDFLs) are of great interest owing to their potential applications in medicine, material processing and optical fiber communications. The first Bi-doped pulsed...
During the last few years, an increasing interest in Large Mode Area fibre operating around a wavelength of 2μm for high-power fibre laser applications has been observed. For most pulsed laser applications, it is desirable to operate the fibre in the normal dispersion regime to avoid the limiting effects of modulational instability (MI)/soliton formation [1]. However, it is very difficult to achieve...
We report efficient four-wave mixing within a 30cm-long π phase-shifted Raman DFB fiber laser written in standard fiber operating at 1117nm with a maximum wavelength shift of 167nm and a conversion efficiency up to -25dB.
We demonstrate the generation of a 1.1-1.7μm supercontinuum in a 1.3m long air-suspended- core tellurite holey-fiber with a nominal zero-dispersion wavelength of ~1.38μm. The fiber is pumped at 1.06μm with a 20ps pulsed fiber laser. The high Raman gain-coefficient of tellurite glass is attributed a key role in the supercontinuum generation.
We investigate both theoretically and experimentally the properties of supercontinuum generation in the near-infrared and visible regimes using high-power picosecond pulses propagating in a photonic crystal optical fiber. We discuss the effect of the pump wavelength relative to the fiber zero-dispersion wavelength on the conversion efficiency of pump power to shorter wavelengths. Finally, we consider...
Multi-kilowatt of continuous-wave output power, with a good beam quality, has already been achieved in Yb-doped fiber lasers (YDFL) in the wavelength region of 1060-1100 nm. This has motivated power scaling of YDFL operating at longer wavelengths, especially at 1178 nm. The estimated slope efficiency was 43% with respect to the launched pump power.
This paper will review design techniques, device requirements and characteristics of fibre Bragg gratings for use as telecomm's filters and for incorporation in fibre lasers.
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