BOAR stands for Bimirror based Optical Autocorrelation with Retrieval. This new technique of ultrashort pulses characterization relies on interferometric single shot autocorrelation and two photon absorption. The time delay is encoded into a spatial interferogram which is used to evaluate the pulse duration, the 2ω spectrum and the chirp. There is no non-linear crystal and no phase matching issues, the spectral working range is therefore very broad (1200 - 2400 nm). The BOAR is actually combining all the advantages : simple, extremely robust, accurate and reliable measurements, spatially resolved, suitable for rather chirped pulses and the retrieval is done in real time directly by Fourier transformation. Two models are available for two different temporal windows.

Key features：

● Very easy to use 

● Temporal and spectral measurement 

● Real time chirp measurement 

● No phase matching issues 

● Achromatic and non-dispersive

● Broad spectral range¹ 

● Nonsensitive to polarization 

● Single shot up to 150 kHz²

● Sub-10 fs in the NIR

● Ideal tool for OPA