Ultrashort pulse characterization by spectral shearing interferometry with spatially chirped ancillae

Details Ultrashort pulse characterization by spectral shearing interferometry with spatially chirped ancillae Ultrashort pulse characterization by spectral shearing interferometry with spatially chirped ancillae

2009-08-09

arxiv.org/abs/0908.1245v1

Physics

Optics

11 pages, 7 figures

Scientific paper

We report a new version of spectral phase interferometry for direct electric field reconstruction (SPIDER), which enables consistency checking through the simultaneous acquisition of multiple shears and offers a simple and precise calibration method. By mixing the test pulse with two spatially chirped ancilla fields we generate a single-shot interferogram which contains multiple shears, the spectral amplitude of the test pulse, and the reference phase, which is accurate for broadband pulses. All calibration parameters - shear, upconversion-frequency and reference phase position - can be accurately obtained from a single calibration trace.

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