Near-infrared nonlinearity of a multicomponent tellurium oxide glass at 800 and 1,064 nm

作者：Oliveira Tamara A; Manzani Danilo; Falcao Filho Edilson L; Messaddeq Younes; Boudebs Georges; Fedus Kamil; de Araujo Cid B^*

来源：Applied Physics B: Lasers and Optics , 2014, 116(1): 1-5.

DOI：10.1007/s00340-014-5835-9

We report on the nonlinear (NL) optical properties of glassy TeO2-GeO2-K2O-Bi2O3 at lambda = 800 nm and lambda = 1,064 nm. Using the Kerr gate technique with a laser delivering 150 fs pulses at 800 nm, we demonstrated the fast NL response of the samples. The modulus of the NL refractive index, n (2), at 800 nm was similar to 10(-15) cm(2)/W. The Z-scan technique was used to determine n (2) a parts per thousand +10(-15) cm(2)/W, at 1,064 nm with pulses of 17 ps. The two-photon absorption coefficient, alpha (2), was smaller than the minimum that we can measure (%26lt; 0.003 cm/GW). The figure of merit n (2)/alpha (2) lambda was calculated and indicates that this glass composition has large potential to be used for all-optical switching.

• 出版日期2014-7