Picosecond-pulse wavelength conversion based on cascaded sum-frequency generation/difference-frequency generation in PPLN waveguides

Yong Wang; Chang-Qing Xu

doi:10.1117/12.707756

8 September 2006 Picosecond-pulse wavelength conversion based on cascaded sum-frequency generation/difference-frequency generation in PPLN waveguides

Yong Wang, Chang-Qing Xu

Author Affiliations +

Proceedings Volume 6343, Photonics North 2006; 63431J (2006) https://doi.org/10.1117/12.707756
Event: Photonics North 2006, 2006, Quebec City, Canada

Abstract

The wavelength conversion technique based on the cascaded sum-frequency generation/difference-frequency generation (SFG/DFG) process has an advantage of no pump occupation in the communication band, compared to the mostly adopted second-harmonic generation (SHG)/DFG process. In the SFG/DFG-based wavelength conversion, two pump waves and a signal wave are required. The pulsed wave, as a carrier of information, can be applied to the signal or one of the two pump waves. Though the converted wave has the form of pulses, its temporal and spectral characteristics are dependent on the arrangement of the input pulsed wave. Based on numerical simulation, the temporal and spectral characteristics of the pump, signal, converted and sum-frequency waves during their propagations in PPLN waveguides are systematically investigated in this work. In particular, temporal pulse shapes, optical spectra and conversion efficiency are emphasized and compared when picosecond pulse trains are used as the signal and pump waves, respectively.

Citation Download Citation

Yong Wang and Chang-Qing Xu "Picosecond-pulse wavelength conversion based on cascaded sum-frequency generation/difference-frequency generation in PPLN waveguides", Proc. SPIE 6343, Photonics North 2006, 63431J (8 September 2006); https://doi.org/10.1117/12.707756

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