Periodically poled LiNbO 3 (PPLN) makes available direct and efficient frequency conversion of laser light through quasi-phase matched (QPM) nonlinear optical interactions. For a given PPLN waveguide, the efficiency of frequency conversion strongly depends on QPM, which can be optimized by tuning the wavelength or the temperature. We propose a guided wave device for temperature measurement based on second harmonic generation (SHG) in a PPLN waveguide. Modelling of the device and a preliminary test in a PPLN waveguide fabricated through electric field poling and (APE) annealed proton exchange are reported.
Design and fabrication of APE - PPLN waveguides for temperature measurement / Del Rosso, T.; Sottini, S.; Trigari, S.; D'Orazio, Antonella; De Sario, M.; Petruzzelli, Vincenzo; Prudenzano, Francesco; Grando, D.. - 4829:(2003), pp. 905-906. [10.1117/12.530336]
Design and fabrication of APE - PPLN waveguides for temperature measurement
D'ORAZIO, Antonella;PETRUZZELLI, Vincenzo;PRUDENZANO, Francesco;
2003-01-01
Abstract
Periodically poled LiNbO 3 (PPLN) makes available direct and efficient frequency conversion of laser light through quasi-phase matched (QPM) nonlinear optical interactions. For a given PPLN waveguide, the efficiency of frequency conversion strongly depends on QPM, which can be optimized by tuning the wavelength or the temperature. We propose a guided wave device for temperature measurement based on second harmonic generation (SHG) in a PPLN waveguide. Modelling of the device and a preliminary test in a PPLN waveguide fabricated through electric field poling and (APE) annealed proton exchange are reported.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
