Abstract

Ultrashort optical pulse generation with semiconductor lasers is currently of interest for such applications as high-bit-rate optical communications and very fast data processing. In the picosecond regime, the most commonly used technique of pulse duration measurement is the nonlinear intensity autocorrelation technique involving phase-matched second harmonic generation in a nonlinear optical crystal, such as a LilO₃ crystal.

© 1986 Optical Society of America