Wideband delays generated in an all-optical tunable delay line, preserving signal wavelength and bandwidth

A novel technique to produce large all-optically controlled tunable delays of 100 ps pulse train in optical fibers is demonstrated. The configuration of the delay line basically consists of two main stages: the wavelength conversion via semiconductor optical amplifiers and the group velocity delaying via a dispersive optical medium. The wavelength-converted signal was precisely delayed over a wide temporal range from picoseconds to nanoseconds using a dispersive fiber, preserving the wavelength and the bandwidth of the signal. 100 ps FWHM signal pulses were delayed continuously up to 14 ns with moderate pulse distortion, corresponding to a 140-bit delay.


Published in:
Comptes Rendus Physique, 10, 10, 1008-1013
Year:
2009
Publisher:
Elsevier
ISSN:
1631-0705
Keywords:
Note:
Special issue on slow light, invited paper
Laboratories:




 Record created 2010-01-21, last modified 2018-03-18

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