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Fine tuning of conversion/dispersion based optical delays with a 1 pm tunable laser using cascaded acousto-optic
1Department of Electrical Engineering-Systems, University of Southern California, 3740 McClintock Avenue, EEB 500,Los Angeles, California 90089, USA. nuccio@usc.edu
Optics Letters
|February 18, 2010
Abstract:
We demonstrate a technique for fine tuning of optical delays using cascaded acousto-optic modulators to improve the delay resolution by 5 orders of magnitude compared to a 1 pm tunable laser. A 256 ns delay with <0.5 ps resolution is shown for 40 Gbits/s return-to-zero on-off keying with no added penalty.
