We report a theoretical and experimental study of laser coupling in hollow-core, fiber-optic waveguides with small-bore diameters of d=200 µm. For the experiments we utilized three mid-infrared quantum cascade lasers with different emission wavelength, which were coupled into the waveguides using lenses with focal lengths in the range 25-76 mm. Measurements of the output beam profiles and propagation losses were obtained as a function of the coupling conditions. With appropriate coupling parameters, single mode beam delivery can be obtained for all laser wavelengths, ranging from λ ~ 5.4 to 10.5 µm.
Mid-IR quantum cascade laser mode coupling in hollow-core, fiber-optic waveguides with single-mode beam delivery / Patimisco, P.; Sampaolo, A.; Kriesel, J. M.; Scamarcio, G.; Spagnolo, Vincenzo Luigi. - STAMPA. - 9370:(2015). (Intervento presentato al convegno Conference on Quantum Sensing and Nanophotonic Devices XII tenutosi a San Francisco, CA nel February 08-12, 2015) [10.1117/12.2078960].
Mid-IR quantum cascade laser mode coupling in hollow-core, fiber-optic waveguides with single-mode beam delivery
Patimisco P.;SPAGNOLO, Vincenzo Luigi
2015-01-01
Abstract
We report a theoretical and experimental study of laser coupling in hollow-core, fiber-optic waveguides with small-bore diameters of d=200 µm. For the experiments we utilized three mid-infrared quantum cascade lasers with different emission wavelength, which were coupled into the waveguides using lenses with focal lengths in the range 25-76 mm. Measurements of the output beam profiles and propagation losses were obtained as a function of the coupling conditions. With appropriate coupling parameters, single mode beam delivery can be obtained for all laser wavelengths, ranging from λ ~ 5.4 to 10.5 µm.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
