All-optical logic gate of active nonlinear three-core optical fiber coupler
A three-core optical fiber and nonlinear optical technology, applied in the field of all-optical logic gates, can solve the problems of receiver sensitivity degradation, affecting the quality of signal transmission equipment, and not conducive to effective signal transmission, etc.
Active Publication Date: 2019-10-11
HANGZHOU DIANZI UNIV
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This situation will lead to a decrease in the sensitivity of the receiver, which will affect the quality of the signal transmission equipment and is not conducive to the effective transmission of the signal
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[0022] The present invention will be further described below in conjunction with the accompanying drawings, so that the technical solution of the present invention is clearer and clearer.
[0023] like figure 1 Shown is an all-optical logic gate of an active nonlinear three-core fiber coupler with a structure, including the following components: a first conductor laser 1-1, a second conductor laser 1-2, and a third conductor laser 1-3 , the first optical attenuator 2-1, the second optical attenuator 2-2, the first optical modulator 3-1, the second optical modulator 3-2, the first optical filter 4-1, the second optical filter 4-2, the third optical filter 4-3, the fourth optical filter 4-4, the fifth optical filter 4-5, the first polarization controller 5-1, the second polarization controller 5-2, The third polarization controller 5-3, the first optical isolator 7-1, the second optical isolator 7-1, the third optical isolator 7-3, the optical amplifier 6 and the three-core non...
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The invention provides an all-optical logic gate of an active nonlinear three-core optical fiber coupler. The all-optical logic gate comprises a first conductor laser, a second conductor laser, a third conductor laser, a first optical modulator, a second optical modulator, a first optoisolator, a second optoisolator, a third optoisolator, an optical amplifier and the three-core nonlinear optical coupler, wherein the first conductor laser, the first optical modulator and the first optoisolator are sequentially connected; the second conductor laser, the second optical modulator and the second optoisolator are sequentially connected; the third conductor laser, the optical amplifier and the third optoisolator are sequentially connected; and the first optoisolator, the second optoisolator and the third optoisolator are respectively connected with three cores of the three-core nonlinear optical coupler. After optical signals of the two lasers are modulated by the modulators, a pulse digitalsequence is generated and is injected into two ports of the three-core nonlinear optical coupler, the pump light of a pump source of the third conductor laser is amplified and injected into the fibercore 2, and cross phase modulation is performed on the optical signals in the fiber core 1 and the fiber core 2.
Description
technical field [0001] The invention belongs to the technical field of optical information, and in particular relates to an all-optical logic gate of an active nonlinear three-core optical fiber coupler. Background technique [0002] All-optical network (AON All Optical Network) means that the signal only undergoes electrical / optical and optical / electrical conversion when it enters and exits the network, and it always exists in the form of light during transmission and exchange in the network. The transmission and exchange of information in the all-optical network all use optical signals, and the intermediate optical-electrical and electrical-optical conversion processes are no longer required. Since the information transmission, exchange, and amplification of the all-optical network do not need to undergo photoelectric and electro-optical conversion, so It is not affected by the slow response of electronic equipment in the original network, and is an ideal choice for the ne...
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IPC IPC(8): G02F3/00
CPCG02F3/00
Inventor 李齐良邓跃平包小彬吴婷胡淼周雪芳曾然唐向宏
Owner HANGZHOU DIANZI UNIV