Transient crossing phase modulation type full gloss half-adder

Abstract

The disclosed transient-cross phase-modulation full-light half-adder comprises: two ultrashort pulse sources are modulated to output RZ codes as two path data signals; after coupling by a coupler, these data signals are injected into a semiconductor amplifier together with continual laser beam through another coupler; the output power of the amplifier is divided into two parts; after amplifying and filtering by fiber amplifier and light band-pass filter respectively, it obtains light logic 'AND' and 'OR' operators detected by an optical receiver. This invention simplifies structure greatly, saves cost, and can achieve 100Gb / s speed in theory.

Description

technical field [0001] The invention belongs to the technical field of optoelectronic materials and devices, in particular to an all-optical adder for the transient cross-phase modulation effect of a semiconductor optical amplifier. Background technique [0002] With the increase of network capacity and the continuous improvement of signal transmission and exchange rate, due to the limitation of integrated circuit processing technology and semiconductor material itself, the bottleneck effect of electronics will become more and more obvious. In the future intelligent all-optical network, devices in the electrical field will be severely troubled by electronic bottlenecks; in contrast, all-optical signal processing technology can give full play to the advantages of light waves in high-speed signal processing. Therefore, high-speed all-optical signal processing is the key core technology for the ultimate realization of an intelligent all-optical network. [0003] Generally spea...

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Problems solved by technology

The advantage of this scheme is that it does not require additional probe light and can obtain a higher working rate, but the clock signal and the data signal require strict synchronization. Because two-stage cascading is used, the structure is complex and has polarization correlation. Therefore, this scheme The conditions for the realization of

[0007] The above implementation schemes of all-optical half-adders inevitably involve the cascading of logic gates. The "exclusive OR" operation and the "AND" operation are implemented with different devices, and the cascading of logic gates on the one hand gives precise control. Operation brings difficulty, on the other hand, it will also lead to accumulation of extinction ratio degradation, which may lead to further deterioration of logic output characteristics

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