title: Experimental performance of a fully tunable complex-coefficient optical FIR filter using wavelength conversion and chromatic dispersion.
abstract: We experimentally characterize the performance of a continuously tunable all-optical complex-coefficient finite-impulse-response (FIR) filter that exploits nonlinear signal processing (multiplexing and multicasting) and conversion-dispersion-based optical delays. Various length (three and four) optical FIR filters with different tap amplitudes (from 0 to -9 dB), tap phases (from 0 to 2π), and tap delays (~37.4 ps and 25 ps) are realized, showing reconfiguration and tuning capabilities of this FIR filter. The measured frequency responses show close agreement with the theoretical filter responses.
authors: Department of Electrical Engineering, University of Southern California, Los Angeles, California 90089, USA. khaleghi@usc.edu
authors: Salman
authors: S
authors: Khaleghi
authors: Mohammad Reza
authors: MR
authors: Chitgarha
authors: Omer F
authors: OF
authors: Yilmaz
authors: Moshe
authors: M
authors: Tur
authors: Michael W
authors: MW
authors: Haney
authors: Carsten
authors: C
authors: Langrock
authors: Martin M
authors: MM
authors: Fejer
authors: Alan E
authors: AE
authors: Willner