Feasibility of Er3+-doped, Ga5Ge20Sb10S65 chalcogenide microstructured optical fiber amplifiers

Design of Er3+-doped chalcogenide glass laser for MID-IR application

“…In fact, by considering that the effective area is about 90 lm 2 , the self-phase modulation and the other Kerr nonlinearities are negligible for the pump powers and the fiber lengths considered in the previous simulations [11].…”

“…2 illustrates the transversal section of the designed (and optimized) chalcogenide PCF. A number of simulations have been performed in order to optimize the geometrical parameters of the fiber section by following the approach reported in [11]. The obtained results show that the chalcogenide PCF of Fig.…”

“…As an example, fiber lasers are used in the field of infrared-guided missile countermeasures [1] due to their spectral overlap with the thermal signature of aircrafts and the atmospheric transmission window in the medium infrared (MID-IR) wavelength range. Moreover, photonic crystal fibers (PCFs) are suitable for laser applications because of their peculiar optical properties, such as light polarization, high non-linearity, endlessly single mode operation and so on [2][3][4][5][6]. PCFs generally include a number of air holes, running along the longitudinal direction, which can be arranged in different kinds of lattices.…”

“…They also exhibit high non-linearity, useful for ultrafast switching in time division multiplexing communication systems [9], and capability to host high dopant concentration without suffering from ion-clustering or concentration quenching effects. Moreover, because of their transparency in the IR wavelength range, chalcogenide glasses are useful in active applications such as amplifiers [2,3] and IR fiber lasers.…”

Design of silica-based photonic crystal fiber for biosensing applications

“…The interest towards these sensors is mainly linked to the unique guiding and dispersive properties due to the holey structure of the PCFs, enabling light propagation control, not attainable in conventional optical fibers [7][8][9][10].…”