Heterodyne Nondegenerate Pump-Probe Measurement Technique for Guided-Wave Devices

摘要

We describe a new heterodyne nondegenerate pump-probe waveguide measurementtechnique that permits independent control of wavelengths, pulse widths, and polarizations of the pump and probe pulses in a collinear geometry. This technique provides both time and spectral domain information and can be applied to transmission and index measurements alike. We demonstrate this technique for the measurement of gain dynamics in a strained layer single quantum well diode laser.