Title: Simultaneous compression and characterization of ultrashort laser pulses Abstract: The characterization of ultrashort laser pulses is often as important as the generation process itself. Since no methods exist for the direct measurement of such short events, self-referencing techniques are usually employed, i.e., the pulse is used to measure itself. We present a simple and robust technique to retrieve the phase of ultrashort laser pulses, based on a chirped mirror and glass wedges compressor. It uses the compression system itself as a diagnostic tool, thereby making unnecessary the use of complementary diagnostic tools. We used this technique to compress and characterize ultrashort laser pulses from different ultrafast laser oscillators.