| Autor: |
Rostami, Ali, Nejad, Hamed Baghban Asghari, Qartavol, Reza Maram, Saghai, Hassan Rasooli |
| Předmět: |
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| Zdroj: |
IEEE Journal of Quantum Electronics; Mar2010, Vol. 46 Issue 3, p354-360, 6p |
| Abstrakt: |
The performance of an ultrafast all-optical logic gate based on quantum-dot semiconductor optical amplifier (QD-SOA) has been theoretically analyzed in this paper. We introduce a novel approach to accelerate the gain recovery process with a control pulse (CP) using the cross-gain modulation (XGM) effect. It is shown that the optical XOR gate in a Mach-Zehnder interferometer- based structure is feasible at Tb/s speeds with proper quality factor. The operation capability at 2.5 Tb/s with a Q-factor of 4.9 and 2 Tb/s with a -factor of 8.8 is reported for the first time. This capability indicates great potential for ultrafast all-optical signal processing and switching. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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