All-optical logic gate based on non-linear phase shift fiber bragg grating

A technology of phase-shifting fiber gratings and phase-shifting gratings, applied in the field of all-optical logic gates, can solve problems such as limiting the transmission rate, and achieve the effect of huge application potential

Inactive Publication Date: 2015-12-09
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing optical communication network is a photoelectric hybrid network, and there are still optical / electrical / optical conversions in the intermediate nodes. Therefore, the communication system is bound by electronic bottlenecks, which limits the increase in transmission rate.

Method used

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  • All-optical logic gate based on non-linear phase shift fiber bragg grating
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  • All-optical logic gate based on non-linear phase shift fiber bragg grating

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Embodiment Construction

[0016] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0017] like figure 1 As shown, the all-optical logic gate based on the nonlinear phase-shifting fiber grating in this embodiment includes a first optical isolator (1-1), a second optical isolator (2-3), a first bandpass filter (1- 2), the second bandpass filter (1-5), the third bandpass filter (2-4), the fourth bandpass filter (2-7), the first wavelength division multiplexer (2-2 ), the second wavelength division multiplexer (2-8), the third wavelength division multiplexer (1-6), the first optical circulator (1-3), the second optical circulator (2-5), The first nonlinear phase shift fiber grating (1-4), the second nonlinear phase shift fiber grating (2-6), and a signal source (2-1).

[0018] The signal source (2-1) is set to be connected to the first port g1 of the first wavelength division multiplexer (2-2), and the second port g2 of t...

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Abstract

The invention discloses an all-optical logic gate based on a non-linear phase shift fiber bragg grating. A signal source is arranged and is connected with a first wavelength division multiplexer port I, a first wavelength division multiplexer port II is connected with a second optical isolator port I, a second optical isolator port II is connected with a third band-pass filter port I, a third band-pass filter port II is connected with a second non-linear phase shift fiber bragg grating input port I through a second optical circulator, an output port of the second non-linear phase shift fiber bragg grating is connected with a fourth band-pass filter port I, and a fourth band-filter port II is connected with a second wavelength division multiplexer; a first optical isolator is connected with a first band-pass filter port I, a first band-pass filter port II is connected with an input port I of a first non-linear phase shift fiber bragg grating through a first optical circulator, an output port of a first non-linear phase shift fiber bragg grating is connected with a second band-pass filter port I, and a second band-pass filter port II is connected with a third wavelength division multiplexer.

Description

technical field [0001] The invention belongs to the technical field of optical information, and in particular relates to an all-optical logic gate based on a nonlinear phase shift fiber grating. Background technique [0002] Optical fiber has the characteristics of low loss and large transmission capacity. It is an ideal transmission medium and is widely used in backbone network transmission systems. However, the existing optical communication network is a photoelectric hybrid network, and optical / electrical / optical conversion still exists in the intermediate nodes. Therefore, the communication system is bound by electronic bottlenecks, which limits the increase in transmission rate. An effective way to solve this problem is to transmit and process optical signals in the full optical domain. Even if the transmission network is all optical, the key to the network full optical is to find a suitable optical switch. Fiber Bragg gratings have been done a lot of research, but Mos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F3/00
CPCG02F3/00
Inventor 李齐良宋俊峰陈心李舒琴胡淼魏一振周雪芳卢旸杨国伟
Owner HANGZHOU DIANZI UNIV
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