Ultrafast chirped optical waveform recorder using a time microscope

摘要

A new technique for capturing both the amplitude and phase of an optical waveform is presented. This technique can capture signals with many THz of bandwidths in a single shot (e.g., temporal resolution of about 44 fs), or be operated repetitively at a high rate. That is, each temporal window (or frame) is captured single shot, in real time, but the process may be run repeatedly or single-shot. By also including a variety of possible demultiplexing techniques, this process is scalable to recoding continuous signals.

主权项

1. A time lensing method, comprising:
dispersing a non-heterodyned waveform to produce a first dispersed signal; dispersing a signal from an optical source to produce a second dispersed signal; mixing said first dispersed signal with said second dispersed signal in a nonlinear material to produce a combined signal, wherein said combined signal comprises a quadratic time lens phase; dispersing said combined signal to produce a dispersed combined signal; and detecting said dispersed combined signal.