A class of coherent optical spectrum analyzers for one-dimensional signals is described that is characterized by a frequency variant response to the spectral components of the input signal. Operations performed exploit the second degree of freedom inherent in the optical systems. One example considered is a constant proportional bandwidth, log-frequency spectrum analyzer. Experimental and analytical results are presented.
© 1976 Optical Society of America
Original Manuscript: March 1, 1976
Published: December 1, 1976
W. T. Rhodes and J. M. Florence, "Frequency variant optical signal analysis," Appl. Opt. 15, 3073-3079 (1976)