Abstract
We propose and experimentally demonstrate a novel design for temporal integration of microwave and optical intensity waveforms with combined high processing speed and a long operation time window. It is based on concatenating in series a discrete-time (low-speed) photonic integrator and a high-speed analog time-limited intensity integrator. This scheme is demonstrated here using a cascaded fiber-based interferometers’ system (as a passive eight-point discrete-time integrator) and an analog time-limited intensity integrator. The latter is based on temporal intensity modulation of the input waveform with a rectangular-like incoherent energy spectrum followed by linear dispersion. Using this setup, we experimentally achieve accurate time integration of intensity signals with bandwidths over an operation time window of , corresponding to a processing time- bandwidth product of .
© 2011 Optical Society of America
Full Article | PDF ArticleMore Like This
Mohammad H. Asghari, Yongwoo Park, and José Azaña
Opt. Express 19(2) 425-435 (2011)
Antonio Malacarne, Reza Ashrafi, Ming Li, Sophie LaRochelle, Jianping Yao, and José Azaña
Opt. Lett. 37(8) 1355-1357 (2012)
Ningbo Huang, Ming Li, Reza Ashrafi, Lixian Wang, Xin Wang, José Azaña, and Ninghua Zhu
Opt. Express 22(3) 3105-3116 (2014)