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Proceedings Paper

1.5-micron enhancement in active waveguides fabricated with femtosecond laser pulses
Author(s): Roberto Osellame; Stefano Taccheo; Giulio Cerullo; Marco Marangoni; Gino Sorbello; Dario Polli; Sandro De Silvestri; Paolo Laporta; Roberta Ramponi
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Paper Abstract

We report on single mode active waveguides at 1.5 μm in Er:Yb-doped glass substrates fabricated with femtosecond laser pulses. A new spatial beam shaping approach for fabrication of waveguides with circular transverse profile is discussed, which uses an astigmatic beam and controls both beam waist and focal position in tangential and sagittal planes. The experimental results are well described by a simple nonlinear absorption model. The waveguides realized with this technique provide a significant enhancement in the whole Er-band, becoming interesting candidates for the realization of many photonic devices.

Paper Details

Date Published: 15 April 2003
PDF: 8 pages
Proc. SPIE 4941, Laser Micromachining for Optoelectronic Device Fabrication, (15 April 2003); doi: 10.1117/12.468521
Show Author Affiliations
Roberto Osellame, IFN-CNR (Italy)
Politecnico di Milano (Italy)
INFM (Italy)
Stefano Taccheo, IFN-CNR (Italy)
Politecnico di Milano (Italy)
Giulio Cerullo, IFN-CNR (Italy)
Politecnico di Milano (Italy)
INFM (Italy)
Marco Marangoni, IFN-CNR (Italy)
Politecnico di Milano (Italy)
IFNM (Italy)
Gino Sorbello, IFN-CNR (Italy)
Politecnico di Milano (Italy)
Dario Polli, IFN-CNR (Italy)
Politecnico di Milano (Italy)
INFM (Italy)
Sandro De Silvestri, IFN-CNR (Italy)
Politecnico di Milano (Italy)
INFM (Italy)
Paolo Laporta, IFN-CNR (Italy)
Politecnico di Milano (Italy)
INFM (Italy)
Roberta Ramponi, IFN-CNR (Italy)
Politecnico di Milano (Italy)
INFM (Italy)


Published in SPIE Proceedings Vol. 4941:
Laser Micromachining for Optoelectronic Device Fabrication

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