All Optical Sampling of Near-Infrared Waveforms at 505 kHz

The past few years have witnessed the development of multiple techniques to measure the full-electric field of ultrashort optical waveforms, enabling the study of ultrafast phenomena on sub-cycle time scales [1]. Among them, generalized heterodyne optical sampling techniques (GHOSTs) provide a convenient all-optical approach that promises scalability to high repetition rates and implementation without the need for pulses with stable carrier envelop phase (CEP) [2].