A novel interferometric parallel spectral detection method for optical signals
with finite time duration is proposed and experimentally demonstrated. Unlike
the conventional schemes that detect temporal signals in the time domain, the
proposed method recognizes the frequency spectral components of an optical
signal in parallel by observing the spatial interference pattern formed between
the optical signal and a multifrequency local light. The operating principle is
experimentally confirmed by use of 4-bit-long 200-Mbit/s optical cells.
© 1993 Optical Society of America
Equations on this page are rendered with MathJax. Learn more.