Journal
OPTICS EXPRESS
Volume 16, Issue 15, Pages 10956-10961Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.16.010956
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All-optical manipulation of signals carried by lightwaves is attractive because controlling the light directly can be more efficient, allows a multitude of signal formats, and can also prove most cost effective. We implemented a novel scheme for ultrafast optical switching using very small control energy that relies on the use of a saturated fiber-optic parametric amplifier. Approximately 19 aJ ( 150 photons) of control pulse energy was needed for 50% extinction of the signal which is three to four orders of magnitude smaller than in other all-optical switching demonstrations. This allows the consideration of novel practical approaches to implement all-optical switching devices and all-optical subsystems for telecommunications and other applications. (C) 2008 Optical Society of America.
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