We have systematically characterized the second harmonic generation efficiency of Te-based binary and ternary II–VI compounds in the near-IR spectral region, namely at=1.5 m and=1.9 m. A phase mismatched technique has been employed, as a translation into the spectral domain of the Maker fringes method. By using sub-picosecond optical pulses, reliable results for the value of non second-order linear coefficientd and of chromatic dispersion have been obtained. We have performed a comparative evaluation of nonlinear wavelength conversion efficiency of Te-based semiconductors and GaAs. The ternary alloys Cd0.5Zn0.5Te and Cd0.78Mn0.22Te can be considered as the best performing basic materials for optical wavelength converters working in the third communication window, since they possess at the same time a highd coefficient, good transparency, and low chromatic dispersion.

Near-IR comparative characterization of optical second-order nonlinearities in Te-based semiconductors

PIETRALUNGA, SILVIA MARIA;MARTINELLI, MARIO
2001-01-01

Abstract

We have systematically characterized the second harmonic generation efficiency of Te-based binary and ternary II–VI compounds in the near-IR spectral region, namely at=1.5 m and=1.9 m. A phase mismatched technique has been employed, as a translation into the spectral domain of the Maker fringes method. By using sub-picosecond optical pulses, reliable results for the value of non second-order linear coefficientd and of chromatic dispersion have been obtained. We have performed a comparative evaluation of nonlinear wavelength conversion efficiency of Te-based semiconductors and GaAs. The ternary alloys Cd0.5Zn0.5Te and Cd0.78Mn0.22Te can be considered as the best performing basic materials for optical wavelength converters working in the third communication window, since they possess at the same time a highd coefficient, good transparency, and low chromatic dispersion.
2001
Optical communications; TLC
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/259031
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 2
  • ???jsp.display-item.citation.isi??? ND
social impact