Frequency resolved optical gating in the 1.55µm band via cascaded χ(2) processes

Frequency resolved optical gating in the 1.55µm band via cascaded χ(2) processes

We investigate ultrashort-pulse interactions based on cascaded second-harmonic generation and difference-frequency generation and propose their use for frequency-resolved optical gating (FROG) at telecom wavelengths in a waveguide configuration. We show how a χ(2)-χ(2) FROG device could allow the e...

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Bibliographic Details
Main Authors: Prawiharjo, Jerry (Author), Gallo, Katia (Author), Broderick, Neil G.R (Author), Richardson, David J. (Author)
Format: Article
Language:English
Published: 2005.
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Summary:We investigate ultrashort-pulse interactions based on cascaded second-harmonic generation and difference-frequency generation and propose their use for frequency-resolved optical gating (FROG) at telecom wavelengths in a waveguide configuration. We show how a χ(2)-χ(2) FROG device could allow the efficient characterization of ultrashort pulses, with time resolutions well beyond the limits normally imposed by walk-off effects on single-step χ(2) FROG devices.

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