By use of frequency-shifted feedback lasers, noise with a stationary amplitude and a periodically stationary phase is generated. The ensemble-averaged time correlation function is periodic, whereas the power spectrum is broadband, resulting in a waveform that does not obey the Wiener–Khintchine relations. An application to multiple-access communications is discussed.
© 2002 Optical Society of America
(030.0030) Coherence and statistical optics : Coherence and statistical optics
(060.4230) Fiber optics and optical communications : Multiplexing
(060.4510) Fiber optics and optical communications : Optical communications
(140.0140) Lasers and laser optics : Lasers and laser optics
Frank V. Kowalski, Cheikh Ndiaye, Koichiro Nakamura, and Hiromasa Ito, "Noise waveforms with repetitive phase and nonrepetitive amplitude," Opt. Lett. 27, 1965-1967 (2002)