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Publikováno v:
Proceedings of SPIE.
Flattened ASE fiber sources with C+L bandwidth(1520-1620nm) are attractive. Long period fiber gratings (LPFG) have the characteristics of band-stopped, which can be used to flatten the spectrum of amplified spontaneous emission (ASE) light source. In
Publikováno v:
Proceedings of SPIE.
For a CO2 laser irradiation of the steel samples kept at liquid nitrogen (LN2) temperature of 77 K the transparence window of LN2 below 0.3 eV is utilized. The irradiation effects are analyzed by means of microstructure observations and by the measur