Group Meeting 10/27/2004

Autocorrelator

Autocorrelation . Correlation function -> power spectrum Note: this means we cannot measure chirp

Power Spectrum Measuring power spectrum is equivalent to autocorrelation i.e. Measuring the power spectrum is equivalent to taking the autocorrelation i.e. There’s no way to get phase from the autocorrelation

Cross Correlator

Cross Correlation If we know A_r, we can find H(w) exactly. If not, we can get the phase

Fiber Cross Correlation

Fiber Cross Correlation Kazumasa Takada, Hiroaki Yamada, and Yasunori Inoue NTT Measurement error: <1% @ 1.48um-1.63um

Fiber Cross Correlation L. M. Simohamed, L. Delage, and F. Reynaud Equipe Optique, Institut de Recherche en Communications Optiques et Microondes

PM Fiber Cross correlation